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Silfab Solar to resume commissioning activities at Fort Mill facility  WCNC
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According to ITC.ua — Техно: Researchers at Ningxia University in China have pioneered an acid-free process for extracting silver from end-of-life solar cells, achieving remarkably high metal recovery rates. This innovative technology isolates silver conductors from silicon wafers as pure metal, presenting a transformative approach to solar panel recycling.
The study demonstrated that within just 150 seconds at 230 °C, 94.34% of silver could be reclaimed from the molten solution. Under optimized conditions, the recovery rate increased to 97.11%, while silicon wafer loss was kept minimal at 2.62%, highlighting the method’s efficiency. Although silver accounts for less than 0.03% of a used solar panel’s weight, it represents nearly half of its total value. Typically, each panel contains about 20 grams of silver, revealing significant economic potential in recycling.
The Australian Energy Council projects that by 2050, global solar waste will accumulate to between 60 and 78 million tons. Given that the first generation of commercial solar panels has a lifespan of 25 to 30 years, developing effective recycling technologies is critical. Recycling solar panels is expected to generate up to $1 trillion in revenue by 2060, marking it as a lucrative sector for future investment.
Silver shortages are anticipated to reach 46.3 million ounces by 2026. Meanwhile, the average silver price has surged past $40 per ounce, a 42% increase from the previous year. The solar industry’s silver consumption is forecasted to decline to approximately 151 million ounces in 2026, down from 186.6 million ounces in the prior year, indicating shifting supply and demand dynamics that could affect silver extraction technologies.
This novel acid-free silver extraction method offers a promising solution to reduce recycling costs and enhance resource recovery efficiency. With the growing volume of solar panel waste and rising silver demand, such technologies could play a vital role in promoting sustainable energy systems. Moreover, improving recycling processes can minimize environmental impact and boost the economic viability of solar panel reuse.
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Solar generation would help extend their battery’s stored power in winter after an overnight charge.
Photo Credit: iStock
A U.K. homeowner considering solar panels and a home battery is weighing a strategy to lower electricity costs. But one unresolved question could affect whether the investment pays off: Will energy suppliers continue allowing batteries to charge at cheaper overnight rates?
In a Reddit post on r/SolarUK, the prospective buyer outlined how they would use the system throughout the year.
Solar generation would help extend the battery’s stored power in winter after an overnight charge. Summer would bring a different role for the panels: All their electricity would be sold, while inexpensive nighttime electricity would charge the battery.
Before purchasing the panels and battery, the homeowner asked the solar community for feedback on the plan.
For homeowners exploring storage, EnergySage offers a resource for researching battery products and comparing competitive installation estimates. Its partnership with electrification company Qmerit aims to help homeowners secure the best available battery storage pricing.
Electricity purchases at the normal rate are already part of the homeowner’s winter calculations. They expect to need that power from around 4:30 p.m., when the battery would be depleted.
Beyond potential bill savings, the right home battery system can provide backup power during outages. Paired with solar panels and the appropriate equipment, storage can also help households become more energy independent and support off-grid use.
For households primarily interested in backup for selected needs, Pila offers a plug-and-play battery alternative at a substantially lower price point than whole-home backup systems.
With energy prices through the roof, there’s never been a better time to go solar — and EasyHome can help you find the best prices from the best installers in your area.
EasyHome takes the guesswork and headaches out of energy upgrades by showing you estimated savings from a network of vetted local partners. To get started, just enter your ZIP and share a few details about your home — seeing your estimate is really that easy.
The original poster said, “Are there any issues you can see with this? Does anyone anticipate something happening in the future, like energy vendors not allowing battery storage at the cheap rate or something? I’m not sure if this is a use case they condone.”
Other U.K. homeowners are asking similar questions about how much batteries can save on electricity bills. These stories explore overnight charging, export payments, free electricity periods, and storage limitations.
• A U.K. solar owner learned charging at 7p beats using solar when exports earn 15p.
• A U.K. homeowner considering battery-only storage faced warnings about G98/G99 grid connection requirements.
• A U.K. solar owner received 26 hours of free electricity and questioned battery cycling returns.
• A U.K. homeowner’s battery savings looked uncertain with overnight charging costing 25p.
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UAE to become world’s biggest generator of solar electricity by 2031, IEA says  The National
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St. Cloud fire crews were called to a solar panel farm at a wastewater treatment plant Friday morning after a transformer caught fire.
Fire crews worked for several hours to put out the fire at the Saint Cloud Nutrient, Energy, and Water (NEW) Recovery Facility, starting around 9 a.m., and continuing to extinguish smoke and hot spots until at least 11:45 a.m. CHOPPER 5 flew over the scene and saw crews among hundreds of solar panels working to fully extinguish the transformer fire.
No one was injured, the fire department said.
The Office of the St. Cloud Fire Marshal is investigating.

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Flock camera on pole powered by a solar cell on top of the pole.  Westfair Communications
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Alghero, problems with the photovoltaic system: building evacuated – L’Unione Sarda English  L’Unione Sarda.it
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“It has triggered twice so far … But there have been no actual weather alerts.”
Photo Credit: iStock
An Irish homeowner was thrilled after their solar panel installer set the battery to charge to 100% after a weather alert. 
However, the system seemed to trigger for an unexpected reason. 
The homeowner’s Reddit post revealed weather alerts are supposed to initiate a full battery charge through a feature enabled by the installer. They identified the new installation as a PowerOcean system with batteries and solar panels. At first, they liked the feature.
“I thought it was pretty neat,” they wrote. “But it has triggered twice so far, last Thursday and today (August 27 and 29 respectively). But there have been no actual weather alerts except… potato blight alert from Met Éireann…” 
With that in mind, they reached out to Redditors to see if “false positives” were common.
For homeowners exploring battery products and comparing competitive installation estimates, EnergySage offers a useful resource. Its partnership with electrification company Qmerit aims to help homeowners secure the best available price for batteries.
Ideally, a fully charged home battery can provide backup electricity during an outage. When paired with solar panels, battery storage can also help homeowners save on electricity and reduce their reliance on the grid. Some systems can support off-grid use as well, depending on the equipment and installation.
The original poster’s experience was apparently not unique. One commenter said they got “false alerts all the time,” although they had set things up so the batteries couldn’t draw from the grid.
With energy prices through the roof, there’s never been a better time to go solar — and EasyHome can help you find the best prices from the best installers in your area.
EasyHome takes the guesswork and headaches out of energy upgrades by showing you estimated savings from a network of vetted local partners. To get started, just enter your ZIP and share a few details about your home — seeing your estimate is really that easy.
“I have gotten an alert from them every day for over a week, for the very distant potential for afternoon thunderstorms (regular, not severe) — because, well, summer,” they shared. “I also get them for heat warnings, high pollen count warnings, tropical humidity warnings etc.”
The owner’s electricity tariff and the amount of charging would determine the cost of an unexpected charge. That expense could arise if an unnecessary alert caused the battery to draw electricity from the grid, unlike for the previous poster.
A different user described more of a middle-ground scenario.
“I’d say that bad weather charge was triggered about 6 times over the year, so well worth it,” they wrote.
A follow-up conversation with the installer could help clarify which Met Éireann alerts trigger a full charge and whether a potato blight notice is meant to qualify. One user did tout the benefits of keeping a battery at nearly full capacity in case of an unexpected emergency.
“Personally I don’t need that feature so much,” the original poster responded. “No power outage has been that long.”
Given their preferences, an easy solution was to simply turn off the alerts. In an update, the OP revealed that was what they did while putting in a substitute system.
“I now use an api call to get forecast estimates and charge overnight to what my house will need,” they wrote. “There’s an api for European weather alerts. Maybe I can use that one… or the Met Éireann one and make it work.”
For consumers considering a smaller-scale alternative, Pila offers plug-and-play battery backup at a substantially lower price point than whole-home backup systems.
The unexpected charge highlights how much battery settings, electricity tariffs, and weather can matter to homeowners. 
• An Irish off-grid homesteader said compact backup power keeps freezers and internet running during outages.
• A U.K. homeowner struggling with grid charging discovered the wrong inverter had been installed.
• A solar owner in the U.K. received 26 hours of free electricity and questioned whether battery cycling could pay twice.
• A U.K. homeowner discovered overnight battery charging costs could undermine expected solar savings.
Get TCD’s free newsletters for easy tips, smart advice, and a chance to earn $5,000 toward home upgrades. To see more stories like this one, change your Google preferences here.
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A conman from Cornwall lost customers an estimated £191,000 after he mis-sold solar panels to more than 20 people.
On Friday (November 6) Jonathan Alan Vidler, of Camelford, pleaded guilty at Truro Crown Court to five counts involving fraudulent trading.
The 61-year-old admitted four charges that on varying dates between January 1, 2021 and May 31, 2024 he was knowingly a part of Energy Consulting & Contracting Ltd for fraudulent activity – namely that he misled customers to carry out work.
He also admitted one count of fraud between January 1, 2021 and September 30, 2023, when he dishonestly, and intending to make a gain, caused loss when he booked work when unable to supply materials or install solar installations for which he had been contracted.
Prosecutor David Sapeicha told the court that Vidler was trading in the domestic solar panel installation industry.
He operated as Energy Consulting & Contracting Ltd, as well as Jonathan Vidler Consulting Ltd and Net Zero (Energy) 2050 Ltd.
The companies were run by Vidler, but he would appoint contractors to install the solar panels and associated equipment.
“The fact was, he couldn’t keep the promises to customers,” said Mr Sapeicha, who said the defendant would quote for installations and customers were “taken in by his claims”.
He told customers their equipment could be installed within an “extremely competitive” four to eight months, but in fact they were left waiting more than 12 months.
The prosecutor said Vidler used logos to which he had no association, in order to attract customers.
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Ten customers had none of the equipment installed that they had paid for.
One contractor installed equipment but threatened to remove it as he had not been paid.
On other occasions, some of the equipment installed was of a lesser quality and incapable of selling electricity back to the grid, as had been promised in the sales pitch.
Some customers received only partial refunds.
Mr Sapeicha said that latterly Vidler had been working with the energy advice charity Community Energy Plus and through that he was about to make contact with potential customers, advising them that he was offering installation privately.
One of the contacts was for Par Bay Community Trust, but Vidler failed to pay the installers and the work was not completed.
Vidler also targeted social contacts, such as people he met through his golf club.
Batteries were never supplied, equipment was not received and they had to pay other installers.
When spoken to, Vidler would claim supply problems with the batteries.
He also told people he would provide information after speaking to Trading Standards, but never did.
The prosecutor said the total loss was estimated at £191,000.
Judge Simon Carr told Vidler: “You promised work would be done when you had no ability to do that.
“You took deposits for goods you were never going to produce and left a significant number of people out of pocket.
“There is an element of you getting in over your head and running what is the equivalent of a Ponzi scheme, but there is also evidence of fraudulent trading in the true sense of the word.”
He said there were 23 incidents listed in the file before him.
Judge Carr said Vidler would be facing prison time, but for the fact he was now seriously ill and receiving aggressive treatment for cancer.
He noted that the defendant had no resources to pay any compensation or costs.
However, as a result of a recent change in guidelines, Judge Carr said he was now able to issue longer suspended sentences.
As such he sentenced Vidler to three years in prison, suspended for three years.
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The city of Biłgoraj, Poland, has operationalized a heat pump system that extracts thermal energy from treated wastewater. Developed by Metrolog under a design-and-build contract with an investment exceeding 12 million PLN, the installation currently supplies approximately 20% of the local heating network’s energy requirements.
The system utilizes a water-to-water circuit positioned at the outlet of wastewater treatment plants. Unlike intermittent sources such as wind or solar, the treated effluent provides a stable year-round temperature, ensuring consistent heat pump performance. To reduce reliance on the external electrical grid, the facility is integrated with a photovoltaic system with a capacity of nearly 190 kWh. The project was funded via the Polish Plan state fund.
The infrastructure provides maximum substitution of fossil-fuel-based boilers during shoulder seasons, where it nearly entirely replaces traditional heating for domestic hot water production. During winter peaks, the system functions as a supplementary load reducer, increasing the overall energy efficiency of the municipal network to meet European heating standards.
This implementation follows a similar operational model deployed by Metrolog in 2020 in Szlachecin for Veolia Energia Poznań. In that instance, thermal energy from Aquanet wastewater was integrated with gas cogeneration into a single circuit with a total thermal capacity of 2.9 MW, reducing the operational load on the coal-fired power plant in Belechow.
Both the Biłgoraj and Szlachecin facilities received the “Construction of the Year” (Budowa Roku) award from the Polish Association of Civil Engineers and Technicians and the Ministry of Development and Technology. According to Michał Cholewa, Development and Technology Director at Metrolog, the operational value lies in the physical integration of water, heat, and energy infrastructure to reduce hydrocarbon dependency within local utility networks.
Metrolog Sp. z o. o., established in 1991, specializes in thermal energy systems and cogeneration and is part of the Elevion Group, which operates decarbonization and energy efficiency projects across 13 European markets.

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Physical flows remain constrained by Russian infrastructure damage rather than Kazakh production limits, forcing diversion to CPC and Novorossyisk terminals.
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Authorities in Vietnam’s Dak Lak province have approved a $355 million floating solar project with a planned capacity of 452 MW on the Ea Sup Thuong reservoir.
The Dak Lak Provincial People’s Committee approved the investment under Decision No. 3526/QĐ-UBND, issued on Oct. 31. The project is scheduled for completion by the end of 2028 and would rank among the world’s larger inland floating PV installations.
The facility will feature a floating 35 kV electrical collection network and a 35/220 kV substation equipped with two 250 MVA transformers. A 6 km, double-circuit 220 kV transmission line will connect the plant to the Krong Buk substation, where two additional 220 kV connection bays will be installed.
The project will also include a battery energy storage system, although its capacity has not been disclosed. The developers will contribute 20% of the total investment through equity, with the remaining 80% to be raised from other sources.
A consortium comprising IPC Engineering and Construction, Tay Nguyen Infrastructure Construction and Development, SD Vietnam Construction Investment, and Ea Sup Investment will develop the project, according to local media outlet Tuoi Tre News. It will occupy approximately 527 hectares, including 524 hectares of reservoir surface.
Vietnam commissioned its first large-scale floating solar project in May 2019, when Da Nhim–Ham Thuan–Da Mi Hydropower Joint Stock Company (DHD), a subsidiary of state-owned utility Electricity of Vietnam (EVN), connected a 47.5 MW installation to the grid at the Da Mi hydropower reservoir in Binh Thuan province. The VND 1.5 trillion ($64 million) project covers approximately 50 hectares.
In late 2020, two 35 MW floating solar plants were connected to the grid at the Gia Hoet 1 and Tam Bo irrigation reservoirs in Chau Duc district. Chinese module manufacturer Longi supplied the panels for both installations.
Vietnam has also introduced differentiated feed-in tariffs for floating solar projects. In April 2025, the Ministry of Industry and Trade published tariffs ranging from VND 1,228.2 ($0.047)/kWh to VND 1,685.8/kWh for floating PV without storage, depending on the region.
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Tuesday, November 10, 2026
5:00 pm – 6:00 pm CET, Berlin, Paris, Madrid
The new issue of pv magazine Global is out now!
Available in print and digital – get your copy today!
Day 1 | Europe’s Solar and Storage Markets 2027: What works where?
Day 2 | Solar + Storage Co-location: Three markets, three business cases
Day 3 | Solar Quality: Which technical risks still need better answers?
Day 4 | Cybersecurity and Procurement: What can European solar projects source in 2027 and beyond?
Friday, November 13, 2026
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As a media partner of Genera 2026, pv magazine will organize and moderate a session in Spanish in Madrid, during International Electrification and Decarbonization Week.
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The International Energy Agency reports that global renewable power capacity will increase by nearly 4,800 gigawatts between 2026 and 2031, with emerging economies outside China matching advanced economies in new additions for the first time. Driven by geopolitical tensions and energy security needs, solar PV and onshore wind are expected to lead the expansion, while China's share of global growth declines and India emerges as the second-largest growth market.
The International Energy Agency has provided fresh insight into global renewable energy developments , showing renewable capacity increase in emerging and developing economies outside China matching that in advanced economies for the first time as Hormuz crisis sharpens focus on domestic energy sources Renewables, already expanding at a record pace before the current energy crisis, are set to see strong growth across a wider range of countries around the world in the coming years as governments seek to strengthen energy security and reduce their exposure to imported fuels and volatile prices, according to the IEA’a latest report.
Renewables 2026, this year’s edition of the IEA’s annual report on the sector, sees global renewable power capacity increasing by almost 4 800 gigawatts in the 2026-2031 period, almost 60% more than was added in the previous six-year period. Solar PV is set to account for more than three-quarters of global renewable capacity growth to 2031, followed by onshore wind.
Amid unprecedented disruptions to global energy markets since the outbreak of the Iran war at the end of February, stronger policy support and intensified energy security concerns are driving faster deployment of renewable power across India, Southeast Asia, Africa and the Middle East. For the first time, the amount of renewable power capacity added in emerging and developing economies outside China is expected to match the amount added in advanced economies in the forecast period.
China will remain the largest contributor to the global increase in renewable power capacity, but its share is set to decline from over 60% in 2025 to an average of 53% over the forecast period amid changes to its renewable energy policies. India is emerging as the world’s second-largest growth market, with its total renewable capacity set to more than double by 2031. Growth is also increasing across Southeast Asia, the Middle East and North Africa, and sub-Saharan Africa.
Across these regions, the amount of renewable capacity added in the 2026-2031 period is forecast to almost triple compared with the previous six-year period.
“Previously, environmental concerns were the policy priority behind the growth of renewables, whose falling costs have made them a competitive option in many markets – but today, it’s mainly energy security that is driving renewables’ expansion as more and more countries seek to reduce their exposure to imported fuels,” said IEA Executive Director Fatih Birol. “The new chapter of the renewables growth story is a truly global one as their deployment spreads well beyond major markets into every corner of the world.
This is making them a key pillar of the global power sector. Today, they account for a third of global electricity generation; in the next five years, they will be getting closer to half of it. ” The growth in renewable power additions is not only the result of major installations by utilities and developers; it is also being driven directly by consumers in many countries.
Faced with high fuel prices and unreliable electricity supplies in some markets, households and small businesses around the world are increasingly turning to more affordable rooftop solar PV systems that can be installed quickly. These small-scale installations have already helped improve electricity services for around 70 million households worldwide, the report finds.
The report forecasts that the use of renewable energy for transport will rise by more than 60 per cent by 2031, by which point it will cover 6 per cent of the transport sector’s energy demand worldwide. Renewable electricity used by electric vehicles accounts for around 45 per cent of this increase, while biofuels are making the second-largest contribution.
As an immediate response to high fuel prices and availability challenges, several countries, notably in Southeast Asia and Latin America, have raised blending mandates, which set the minimum proportion of biofuels that has to be blended into gasoline or diesel sold at the pump. Our forecast for biofuels is revised up by 40% compared with last year’s report.
The report also highlights the importance of secure and diversified supply chains as renewables take on a larger role in energy systems worldwide. India is emerging as an important alternative source of supply, with its share of global solar PV module manufacturing expected to almost double to 17 per cent over the next five years, helping diversify a market that remains highly concentrated.
As solar PV and wind continue to expand rapidly around the world, enhancing power system flexibility becomes critically important for energy security, offering new opportunities in the process. The highest priority is for countries to ensure investment in electricity grids keeps pace with the growth of renewable capacity. This should be complemented by reforms to speed up the connection of new renewable power installations to electricity networks.
The amount of advanced-stage renewable energy and storage projects waiting for grid connections worldwide increased by 60 per cent over the past year to 3 000 GW, four times the wind and solar PV capacity connected to the grid last year. Meanwhile, the deployment of battery storage has been accelerating in many countries, offering an important way to increase the flexibility of electricity systems rapidly.
Measures to enable electricity demand to become more flexible are equally important and can be implemented quickly. Digital technologies, including artificial intelligence, can help shift demand towards periods when renewable power supply is abundant, allowing a better use of variable renewable generation sources.
Together, these measures will be crucial to ensuring that the rapid expansion of renewables translates into more secure, affordable and reliable energy supplies worldwidePower Outage in Lagos, Abuja, Others : Tegbe Promises Relief in 72 Hours We’ve got the edge. Get real-time reports, breaking scoops, and exclusive angles delivered straight to your phone. Don’t settle for stale news. JoinBREAKING NEWS: Nigerians can invest ₦2.5million on premium domains and earn about ₦17-25Million.
Earnings in USD. Rather than wonder, click here to find out how it worksChika Izuora is a journalist with Leadership Media Group with over two decades of mainstream journalism experience. A Mass Communication graduate and alumnus of Pan Atlantic University , he has built outstanding expertise in the oil and gas industry alongside a versatile career as a journalist and author.
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CHERRY VALLEY — A new community solar project capable of powering more than 700 homes and small businesses has come online in the village.
The 7.4-megawatt solar farm spans nearly 34 acres east of the intersection of South Mulford and Sandy Hollow roads, just north of the U.S. 20 bypass.
Solar and energy developer ECA Power celebrated the energization of the Rockford Community Energy Initiative on Thursday along with representatives from project operator Luminance, ComEd, state Rep. Maurice West, state Sen. Steve Stadelman and Cherry Valley Village Administrator Jim Claessen.
Community solar projects such as this allow homeowners, renters and small businesses in ComEd’s service territory to subscribe and save approximately 10% on their electricity bills. That gives them access to renewable energy without installing their own rooftop panels.
“A lot of our small business owners, our up-and-comers, they are renting the building and they may want renewable energy. So it’s important for them to have a project such as this to help them fulfill that,” West said at the news conference.
ComEd said community solar projects are growing in the state. About six weeks ago, Rock Cut Solar, the first such project in the city of Rockford, celebrated its first year of operation.
“Northern Illinois is becoming a national leader in community solar, and projects like this are helping bring the benefits of clean energy to more families and businesses,” Gil Quiniones, president and CEO of ComEd, said in a news release. “We’re proud to work with ECA Power and Luminace to connect projects like this to the grid, and build a power system that can support continued clean energy growth across our region.”
As part of a community benefit agreement with Cherry Valley, ECA Power contributed $150,000 to support the construction, operation and maintenance of new electric vehicle charging stations.
“We have a few places already targeted in the downtown area,” Claessen said of the charging stations. “With the help of Region 1 Planning Council, we’re going to make this happen.”
Todd Fryatt, founder and CEO of ECA Power, said the project should be evaluated not just on the energy it produces but on the lasting value it creates for the community.
“The Rockford Community Energy Initiative reflects that commitment by expanding access to affordable, locally generated energy while bringing meaningful investment to the region,” he said. “From supporting local revitalization to our partnership with the Village of Cherry Valley, we’re proud to deliver a project that will benefit this community for years to come.”
This article is by Kevin Haas. Email him at khaas@rockrivercurrent.com or follow him on Instagram @thekevinhaas and Threads @thekevinhaas
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Electric Current Accelerates Microbial Silver Extraction From Discarded Solar Photovoltaic Cells
A laboratory investigation has demonstrated that applying a continuous ten-milliampere direct electrical current to a microbial leaching system accelerates the dissolution of silver from crystalline silicon photovoltaic components, yielding an eight-point-eight-fold increase in recovered silver concentrations relative to unassisted bioleaching. The research team evaluated the integration of low-level electrical stimulation with microbial cyanogenesis in bench-scale reactors, discovering that the electro-bio coupling operates through a coordinated dual mechanism spanning cellular metabolism and interfacial chemistry. At the biological level, the applied electrical current selectively reshaped the microbial consortium and dramatically upregulated metabolic pathways responsible for synthesizing cyanide lixiviant from precursor amino acids. At the chemical level, computational simulations and spectroscopic characterizations revealed that the electric field directly stabilized the resulting dicyanoargentate complex and lowered kinetic barriers at the metal surface. Together, these complementary effects circumvented the persistent kinetic bottlenecks that have long constrained the deployment of biological metal extraction as a low-carbon circular economy technology.
The rapid worldwide expansion of photovoltaic power generation has created an impending resource management challenge as first-generation solar installations reach the conclusion of their operational lifespans. Projections indicate that cumulative end-of-life photovoltaic module waste will reach ninety-five million metric tons globally by the year 2050, with crystalline silicon architectures representing the vast majority of discarded panels. Global silver reserves trapped within decommissioned photovoltaic modules were projected to reach between twenty-five thousand eight hundred and thirty-two thousand two hundred metric tons by 2025, corresponding to roughly ten percent of all known terrestrial silver reserves. Traditional pyrometallurgical smelting and intensive nitric acid or synthetic cyanide hydrometallurgy can recover this precious metal, yet these conventional processing routes demand substantial thermal energy inputs, emit significant greenhouse gases, and generate hazardous chemical wastes.
Biological leaching utilizing bacterial metabolites offers a green, room-temperature alternative capable of operating under mild atmospheric conditions with minimal chemical inputs, but industrial implementation has remained unviable due to sluggish processing rates. Conventional bio-cyanidation systems are fundamentally restricted by an inefficient supply of amino acid precursors such as glycine, slow microbial metabolic throughput, and sluggish dissolution kinetics at the solid-liquid interface, which together frequently extend extraction durations beyond seven full days. To test whether low-energy electrical stimulation could alleviate these coupled biological and chemical limitations, researchers engineered an experimental reactor framework designated as direct current-coupled bio-cyanide leaching. The experimental apparatus consisted of four distinct bioelectrical reactor vessels designated C0, C10, S0, and S10, each containing two hundred and fifty milliliters of sterilized Luria-Bertani growth medium agitated at six hundred revolutions per minute on magnetic stirring plates maintained at a regulated operating temperature of twenty-five degrees Celsius.
The experimental matrix systematically evaluated both live microbial cultures and spent cell-free supernatants under unassisted control conditions and active ten-milliampere electrical stimulation. Reactors C0 and C10 were operated as two-step bioleaching systems using an indigenous bacterial strain isolated from tailing plant rhizosphere soil, with five hundred milligrams of silver powder introduced once bacterial cultures attained their logarithmic growth phase after eighteen hours of preculture. Reactors S0 and S10 evaluated spent-medium leaching mechanisms, wherein bacterial cultures were centrifuged at eight thousand revolutions per minute for five minutes following an initial eighteen-hour preculture period, allowing the isolated liquid supernatant alone to serve as the leaching substrate before receiving five hundred milligrams of silver powder. In the electrically driven reactors, two autoclave-sterilized graphite plate electrodes measuring one hundred and fifty by one hundred by two millimeters were positioned at opposite ends of the chambers to function as an anode and cathode connected to an external direct-current power supply delivering a continuous ten-milliampere output.
Quantitative monitoring over sixty hours of leaching revealed dramatic performance divergences across the four experimental regimes in terms of acidity, oxidation-reduction potential, cyanide generation, and silver dissolution. In the actively growing culture systems, solution pH climbed steadily because microbial metabolism released alkaline ammonia during glycine catabolism, alongside hydroxide ions generated by the silver dissolution reaction itself. However, anodic water hydrolysis and organic oxidation reactions in the stimulated vessel partially moderated this alkalinization, maintaining a more balanced chemical environment than the unassisted control. Meanwhile, the oxidation-reduction potential in both stimulated and unstimulated microbial systems trended downward into reducing territory conducive to cyanide-mediated silver extraction, whereas the cell-free stimulated reactor experienced an accumulation of anodically generated oxidants and severe acidification, precipitating insoluble silver cyanide complexes and causing dissolved silver concentrations to collapse.
In the fully integrated bioelectrical system, cyanide production surged by fifty-eight percent and dissolved silver reached six-point-forty-three milligrams per liter after sixty hours, representing an eight-point-eight-eight-fold elevation over the zero-point-seven-hundred-and-twenty-four milligrams per liter achieved in the unstimulated biological control. Temporal kinetic calculations revealed that the cyanide synthesis rate peaked at zero-point-zero-seven milligrams per liter per hour between twelve and twenty-four hours of operation, representing an approximate three-point-five-fold increase over control conditions. Concurrently, the silver leaching rate within the initial twelve hours reached zero-point-twenty-seven milligrams per liter per hour, achieving a thirty-two-point-five-fold kinetic acceleration relative to the control. Leaching kinetics evaluated through the shrinking core model demonstrated that while unstimulated systems conformed to standard chemical reaction or diffusion-controlled models, the stimulated system showed substantial deviation with correlation coefficients falling below zero-point-sixty-seven, reflecting a newly established mixed-control regime free from conventional single-step rate-limiting barriers.
The investigative team analyzed seventeen separate amino acids to decipher the metabolomic foundation supporting the elevated cyanide production, uncovering an accelerated consumption of primary carbon and nitrogen sources. Although both microbial reactors began with equivalent total amino acid concentrations of approximately ninety-six milligrams per kilogram, total amino acid content in the stimulated reactor dropped to sixty percent of control levels following leaching. Most strikingly, glycine, which serves as the direct biochemical precursor for microbial hydrogen cyanide synthesis via hydrogen cyanide synthetase, was depleted eleven-point-forty-two times faster under direct-current stimulation. Marked catabolic depletion was likewise observed for glutamate, alanine, and proline, while branched-chain amino acids including valine, isoleucine, and leucine exhibited pronounced consumption to feed carbon skeletons and reducing equivalents into the tricarboxylic acid cycle, generating adenosine triphosphate and nicotinamide adenine dinucleotide to fuel continuous cyanide synthesis.
High-throughput genomic sequencing across the bacterial populations demonstrated that the continuous electrical field exerted a pronounced selective pressure, profoundly restructuring the microbial community structure to favor metabolic specialists. Following electrical exposure, the microbial population in the stimulated reactor became heavily dominated by the genera Pseudomonas and Clostridium sensu stricto 1, which together accounted for more than eighty-three percent of the total taxonomic abundance. In contrast, previously abundant populations belonging to the genera Klebsiella and Lysinibacillus were sharply suppressed under identical operating conditions. Genomic analysis verified that enriched Pseudomonas and Clostridium lineages possess extensive genetic suites encoding enzymes dedicated to amino acid catabolism and deamination, enabling the consortium to efficiently channel complex nutrients toward rapid cyanogenesis without suffering fatal cellular damage, as viability remained above eighty percent and cell membranes remained intact under electron microscopy.
Surface and molecular analyses explained how the applied electric field simultaneously activated the chemical dissolution interface and stabilized extracted metal species in the aqueous phase. Fourier-transform infrared spectroscopy revealed intensified absorption peaks at fifteen hundred and thirty-four and sixteen hundred and thirty-seven reciprocal centimeters on bacterial surfaces, corresponding to enhanced amide group activity linked to active deamination, alongside the loss of polysaccharide carbon-oxygen vibrations reflecting modified outer membrane permeability. Density functional theory calculations evaluating the linear dicyanoargentate complex indicated that an applied electric field shortened the silver-carbon coordination bond by zero-point-zero-zero-seven-one angstroms, significantly strengthening coordination stability and preventing metal reprecipitation. Furthermore, the highest occupied to lowest unoccupied molecular orbital energy gap narrowed from five-point-five-hundred-and-ninety-five to five-point-five-hundred-and-eighty-five electron volts, enhancing complex reactivity, while Mulliken population analysis confirmed increased electron density and nucleophilic character across the central silver atom.
Selectivity evaluations confirmed that the presence of co-existing metals did not compromise precious metal extraction, as substantial concurrent dissolution of aluminum from module rear contact layers did not diminish silver leaching efficiency, with the silver leaching rate under electrical stimulation remaining three-point-eight times higher than the unstimulated baseline. A preliminary techno-economic assessment based on mass balances and a baseline silver valuation of one thousand three hundred and forty-four dollars per kilogram indicated that processing one metric ton of decommissioned photovoltaic cells could yield a net profit of three thousand three hundred and six dollars and twenty cents, assuming an eighty-three-point-five percent recovery efficiency and a ninety-five percent reduction in nutrient expenses through process intensification. Sensitivity analyses established a robust break-even recovery rate of sixty-one percent and a break-even silver price of nine hundred and eighty-three dollars and forty cents per kilogram, indicating that electro-stimulated bioleaching presents an economically viable, low-carbon engineering pathway for urban mineral recovery.
Subject of Research: Electro-stimulated microbial recovery of silver from end-of-life photovoltaic cells
Article Title: Synergistic recovery of silver from end-of-life crystalline silicon photovoltaic cells via direct current-cyanide coupling: performance and mechanism study
Article References: Pang, C., Cao, Y., Hu, J., Zhu, J., & Ruan, J. (2026). Synergistic recovery of silver from end-of-life crystalline silicon photovoltaic cells via direct current-cyanide coupling: performance and mechanism study. Carbon Neutrality, 5(1), Article 6. https://doi.org/10.1007/s43979-026-00160-3
Image Credits: AI Generated
DOI: 10.1007/s43979-026-00160-3
Keywords: photovoltaic recycling, silver bioleaching, biocyanidation, electro-bioleaching, urban mining, metabolic reprogramming, circular economy, electronic waste, Synergistic, recovery, silver, end-of-life
News Source: Sloane Callahan. (November 7, 2026). Electric Current Accelerates Microbial Silver Extraction From Discarded Solar Photovoltaic Cells. Scienmag.
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India’s installed solar PV capacity is expected to exceed 350 GW by 2030, according to the IEA’s India Renewable Energy Market Report 2026.
The report, launched at the Bharat Renewable Energy Summit in New Delhi, forecasts that India’s total installed renewable power capacity will reach around 530 GW by 2030, with solar PV accounting for the largest share of growth. Wind capacity is expected to approach 90 GW, while hydropower capacity is projected to reach 75 GW as large hydro projects come online and investment in pumped storage accelerates.
The expansion is expected to put India on track to meet its target of 500 GW of installed non-fossil fuel power capacity by 2030, a key milestone toward its goal of achieving net-zero greenhouse gas emissions by 2070.
Competitive costs, sustained auction activity, growing open-access procurement and accelerating rooftop installations are expected to drive solar PV deployment.
Utility-scale projects have accounted for around 75% of solar PV capacity additions over the past five years. The IEA expects that share to gradually decline to approximately 70% by 2030, as policy support, improving economics and simplified administrative procedures boost distributed solar deployment.
Distributed solar PV capacity for self-consumption is projected to triple to more than 100 GW by 2030. The PM Surya Ghar Muft Bijli Yojana scheme is accelerating residential rooftop installations, while PM-KUSUM supports the solarization of agricultural feeders and irrigation pumps.
Corporate procurement is also emerging as a major source of demand. Open-access reforms have simplified renewable energy procurement for commercial and industrial consumers, with corporate power purchase agreements expected to support around 20% of utility-scale solar PV and wind capacity additions by 2030.
India’s installed renewable power capacity has almost quadrupled over the past decade, surpassing 300 GW in 2026, according to the report. The country is now the world’s second-fastest-growing renewable energy market and second-largest solar module manufacturer. India also reached its target of 50% non-fossil fuel installed power capacity in 2025, five years ahead of schedule.
The IEA said renewable energy deployment is already delivering substantial energy security benefits. Renewable electricity saved India more than $100 billion in coal and natural gas import costs between 2011 and 2025, with cumulative savings expected to more than double by 2030. Without the solar PV, wind and bioenergy capacity added since 2010, India’s coal imports in 2025 would have been around 110 million metric tons higher.
“India’s renewables expansion is delivering major benefits for its energy security at a time of heightened uncertainty in global energy markets,” said IEA Executive Director Fatih Birol. “As countries look to strengthen domestic energy supplies, India’s experience shows how consistent policies can help drive down renewable energy costs and attract investment, offering valuable lessons for other emerging economies. We look forward to supporting India as it builds on these achievements.”
“India’s emergence as a new giant of renewable energy reflects the progress we have made in recent years,” said India’s Minister of New and Renewable Energy Pralhad Joshi. “As India’s electricity needs continue to rise, we are laying the foundations for the next phase of growth by strengthening domestic manufacturing, mobilising investment and expanding transmission infrastructure.”
The report said competitive auctions have helped India achieve some of the world’s lowest solar PV generation costs and become a global leader in procuring hybrid renewable energy projects. Growth is also extending beyond utility-scale power plants, supported by rooftop solar, corporate electricity procurement and expanding domestic manufacturing.
However, sustaining the expansion will require faster investment in electricity grids, energy storage and system flexibility, alongside stronger utility finances and fewer project delays. Addressing these challenges could accelerate renewable power capacity deployment by more than 20% between 2026 and 2030, according to the IEA.
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Tuesday, November 10, 2026
5:00 pm – 6:00 pm CET, Berlin, Paris, Madrid
The new issue of pv magazine Global is out now!
Available in print and digital – get your copy today!
Day 1 | Europe’s Solar and Storage Markets 2027: What works where?
Day 2 | Solar + Storage Co-location: Three markets, three business cases
Day 3 | Solar Quality: Which technical risks still need better answers?
Day 4 | Cybersecurity and Procurement: What can European solar projects source in 2027 and beyond?
Friday, November 13, 2026
10:00 am – 11:00 am CET, Berlin, Paris, Madrid
As a media partner of Genera 2026, pv magazine will organize and moderate a session in Spanish in Madrid, during International Electrification and Decarbonization Week.
Monday, November 23, 2026
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© 2025 THE COOL DOWN COMPANY. All Rights Reserved. Do not sell or share my personal information. Reach us at hello@thecooldown.com.
“They didn’t really explain if there was a glitch in the app or a problem with firmware.”
Photo Credit: iStock
An Oregon homeowner testing their solar backup system on a sunny day encountered an unexpected problem. The panels stopped producing electricity when the house went off-grid, leaving batteries to power the home.
The homeowner shared the experience in a Reddit post. Full Backup mode and PowerMatch were enabled for the installation, which was completed in December 2025 at their home in Portland’s West Hills. The system has 15.5 kilowatts of solar capacity and three 5P batteries.
Battery power kept the house running without interruption during the follow-up test through the system’s app, the homeowner reported, even as switching off-grid brought solar production to a halt. Before the switch, the batteries were fully charged, and the panels were generating about 9 kilowatts.
“The solar panels began producing again when batteries dropped down to 85%,” the original poster wrote in a follow-up.
Another solar shutoff occurred at approximately 98% battery charge, according to the homeowner, after the panels had supplied the house and replenished the batteries.
For homeowners comparing equipment, EnergySage offers a resource for exploring battery products and provides competitive installation estimates. Its partnership with electrification company Qmerit aims to help homeowners secure the best available battery-storage pricing.
Microgrid stability, household demand, battery charge, and charging capacity all influence solar production during an outage, according to customer-support emails from the manufacturer shared by another commenter. That correspondence addressed similar behavior in the commenter’s IQ Battery 10C system.
Drawing on stored power to run the home leaves the batteries with room to accept more energy. When the batteries are nearly full, the system may create that room by reducing solar production while household demand draws down their charge.
With energy prices through the roof, there’s never been a better time to go solar — and EasyHome can help you find the best prices from the best installers in your area.
EasyHome takes the guesswork and headaches out of energy upgrades by showing you estimated savings from a network of vetted local partners. To get started, just enter your ZIP and share a few details about your home — seeing your estimate is really that easy.
The restart point can change, the company explained, so solar does not necessarily resume after the batteries lose 5% or 10% of their charge.
“I went through the same thing and spent 3 hours on the phone with customer service as well as 3-4 hours with my AI talking through this,” the commenter wrote, reporting almost 40 minutes without solar production during an off-grid test.
However, the Portland homeowner’s recurring charge-and-discharge pattern differs from the normal behavior described in the manufacturer’s emails, which said the battery should not repeatedly be drawn down through the same charge range.
Storing solar energy for later use can also help lower electricity bills, depending on local electricity rates and system settings. For the OP, it also had the potential to provide some independence if they could only get to the bottom of their issues.
A shutdown and restart, performed with guidance from the manufacturer’s support team, restored the homeowner’s grid connection after the test, they wrote. An app error had blocked reconnection even though utility power was available.
While the support call restored the homeowner’s grid connection, the cause remained unclear.
“They didn’t really explain if there was a glitch in the app or a problem with firmware,” the original poster wrote.
For households exploring a smaller backup option, Pila offers a plug-and-play alternative at a substantially lower price than whole-home backup systems.
Other homeowners have also found that their solar backup systems don’t always work as expected. 
• A homeowner’s solar failed during outages despite battery backup, as the equipment company and installer clashed.
• An Illinois solar owner seeking outage protection received warnings about sunlight backup’s limited capabilities.
• In Hawai’i, a homeowner’s solar production hit zero as batteries drained after Hurricane Lowell.
Get TCD’s free newsletters for easy tips, smart advice, and a chance to earn $5,000 toward home upgrades. To see more stories like this one, change your Google preferences here.
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Optimized Fuzzy Controller Enhances Solar Energy Tracking Under Shifting Weather Conditions
Engineers have developed an optimized fuzzy logic control architecture capable of maintaining stable maximum power point tracking in photovoltaic arrays subject to abrupt environmental disturbances and complex partial shading. In practical solar power installations, rapid shifts in solar irradiance and ambient cell temperature continuously displace the operating voltage at which energy harvesting is maximized, while non-uniform illumination generates multiple local peaks across the electrical characteristics of the solar array. Traditional tracking approaches frequently encounter severe limitations in these dynamic settings, either getting trapped in suboptimal local power peaks or oscillating excessively around the optimum operating point. To overcome these persistent engineering trade-offs, the research team designed a multi-scenario parameter optimization scheme utilizing an improved variant of the Harris Hawks Optimization algorithm. Rather than relying on manual adjustments or tuning the system against an idealized static curve, the newly presented framework systematically configures the input scaling factors and membership function spreads of the fuzzy controller offline, yielding substantial dynamic improvements across diverse operational profiles.
The study directly addresses the operational vulnerabilities inherent in standard maximum power point tracking systems where operating points shift continuously rather than remaining static. When conventional local search mechanisms like Perturb and Observe or Incremental Conductance encounter environmental volatility, designers face an unavoidable compromise between convergence speed and steady-state stability. Selecting a large control perturbation step accelerates transient settling during sudden weather shifts but generates substantial power ripple and duty-cycle chatter during stationary intervals. Conversely, adopting an excessively conservative step minimizes steady-state oscillations but causes the controller to lag behind moving targets, resulting in significant transient energy loss. Under partial shading conditions, where bypass diodes activate and induce multiple local maxima across the power-voltage characteristic curve, standard gradient-based techniques routinely settle upon the nearest local maximum while the true global peak remains unharvested elsewhere, severely degrading the overall efficiency of the photovoltaic installation.
To mitigate these structural tracking deficits without introducing excessive modeling complexity, the researchers formulated their controller around a Mamdani-type fuzzy logic architecture. Fuzzy logic controllers are particularly well suited for photovoltaic applications because they can govern highly nonlinear tracking dynamics without demanding an exact mathematical representation of the physical solar panel. The controller evaluates two discrete-time input signals at every sampling instant: an error signal approximating the instantaneous slope of the power-voltage curve, calculated from incremental changes in measured voltage and power, and the rate of change of that slope. These normalized inputs are evaluated across five symmetrical triangular membership functions mapped across a fixed five-by-five rule base that dictates the crisp duty ratio adjustments needed by the power converter. Because the ultimate tracking performance depends far more on the proper scaling and spread parameters than on the linguistic rules themselves, evolutionary optimization was selected to establish an objective, coordinated parameter configuration that prevents erratic oscillatory responses.
The optimization strategy relies on an enhanced iteration of the Harris Hawks Optimization algorithm, designated as I-HHO, which prevents early stagnation in shallow parameter basins. Standard nature-inspired metaheuristics often encounter premature convergence when optimizing complex controllers across composite multi-scenario objective functions. To resolve this issue, the proposed algorithm incorporates four targeted algorithmic modifications: chaotic map initialization to achieve uniform initial dispersion across the bounded parameter space, opposition-based learning to evaluate antithetical candidate positions during population seeding, Lévy-flight random walk perturbations to facilitate long-distance exploration during the exploitation phase, and light local refinement using bounded Gaussian perturbations around the best-performing candidates. Operating under a strictly fixed iteration budget and deterministic random seeding for full experimental reproducibility, the optimization algorithm configures six key variables: the input scaling gains for slope error and change of error, the output duty-step scaling gain, and the respective spread widths for the input and output membership partitions.
Crucially, the research methodology confines the metaheuristic search exclusively to an offline design phase, ensuring that the real-time operational burden on embedded hardware remains minimal. During actual system operation, the photovoltaic controller executes solely the pre-optimized fixed-parameter fuzzy logic inference mechanisms consisting of standard fuzzification, table lookup rule evaluation, and center-of-area defuzzification. This structural separation circumvents the high computational penalties, memory demands, and latency issues that typically prevent online metaheuristic algorithms and deep neural networks from being deployed on inexpensive microcontrollers. To further enhance dynamic stability in field conditions, the authors integrated two lightweight auxiliary mechanisms into the control loop: a soft dead-zone that freezes duty updates whenever the tracking error enters a narrow threshold to suppress steady-state chatter, and a low-resolution adaptive global scanning routine that tests candidate duty values only when the controller detects sustained stagnation, accompanied by an obligatory cooldown window to prevent unnecessary scanning cycles.
To evaluate the controller rigorously, the authors established a dynamic benchmark model reflecting realistic converter and solar array interactions without burdening the iterative optimizer with excessive simulation overhead. The photovoltaic source was modeled using a diode-inspired formulation parameterized at standard test conditions of one thousand watts per square meter and twenty-five degrees Celsius, while dynamic partial shading was modeled via two series-connected submodules governed by numerical bisection current solving and diode voltage clamping. The electrical DC-DC converter interface was modeled through an ideal duty-to-voltage mapping operating against an eighty-volt regulated DC bus, constrained within admissible duty limits between 0.02 and 0.95. To ensure physical realism, terminal voltage transitions were governed by a first-order lag with a time constant of 0.02 seconds, preventing instantaneous, unphysical transitions that could distort settling calculations during simulation runs executed at a fixed two-millisecond sampling interval.
The optimization objectives were formulated through an event-aware multi-scenario evaluation protocol designed to capture practical engineering priorities rather than isolated steady-state metrics. The objective function aggregated four weighted performance indicators across multiple simulation timelines: energy-based tracking efficiency relative to a precomputed global maximum power trajectory, steady-state power ripple evaluated over post-disturbance segments, duty activity measuring control signal roughness, and worst-case event-based settling time. Settling time was calculated individually following each identified environmental disturbance event based on the earliest moment the relative tracking error entered and remained within a narrow tolerance band. By evaluating the worst-case recovery duration rather than an unweighted time average, the framework explicitly penalizes sluggish transient recovery and ensures that parameter tunings perform reliably across all tested conditions simultaneously instead of overfitting to a single disturbance profile.
The performance evaluations demonstrated substantial quantitative improvements over both the unoptimized baseline fuzzy controller and standard tracking benchmarks across four core scenarios: irradiance steps, rapid irradiance ramps, temperature steps, and series partial shading. In the initial optimization case, the multi-scenario objective function dropped from 0.085267 in the baseline fuzzy setup to 0.071317 in the optimized controller, representing an overall performance enhancement of approximately 16.36 percent. During the temperature step evaluation, the steady-state ripple fell from 16.254 percent down to 9.072 percent while energy tracking efficiency improved from 89.233 percent to 94.256 percent. Under the multi-peaked power-voltage curves induced by partial shading, the event-based settling time was successfully reduced from 0.078 seconds to 0.066 seconds, confirming that the systematic tuning of membership spreads successfully dampened transient duty hunting without delaying return to optimal power points.
A secondary stress-test investigation, designated as Case 2, subjected the tracking methods to even harsher transient dynamics, including simultaneous multi-frequency irradiance variations and coupled environmental disturbances where irradiance and temperature shifted concurrently. Under these rigorous conditions, the optimized fuzzy controller achieved a composite objective value of 0.069317, reflecting an 18.4 percent improvement over the unoptimized baseline, while demonstrating superior dynamic damping compared to both benchmark algorithms. In the challenging coupled disturbance scenario, the optimized controller achieved an energy efficiency of 98.93 percent, maintained a low power ripple of 1.789 percent, and achieved a rapid settling time of 0.042 seconds, avoiding the severe voltage undershoots and erratic duty oscillations observed in standard Incremental Conductance tracking. Comparative evaluations against other established metaheuristic methods demonstrated that the improved Harris Hawks approach achieved a 14.6 percent superior objective score relative to Particle Swarm Optimization and a 7.9 percent advantage over Shuffled Frog Leaping Optimization.
While the simulation findings highlight substantial tracking advancements, the authors noted several clear boundaries regarding the experimental scope and outlined directions for ongoing development. The underlying dynamic model purposefully omitted secondary nonidealities such as internal series and shunt resistances, high-frequency switching harmonics, and converter bandwidth limits in order to maintain tractability across thousands of iterative simulation runs. Consequently, future investigations will focus on experimental verification through processor-in-the-loop and hardware-in-the-loop test benches to evaluate the control algorithms on physical embedded microprocessors driving physical converter topologies. Furthermore, the researchers highlighted the potential for expanding the current offline optimization architecture into a semi-adaptive tracking framework, where a minimal subset of scaling gains could be updated periodically online to compensate for progressive solar cell degradation, sensor calibration drift, and unpredictable operational weathering over multi-year deployment horizons.
Subject of Research: Optimization of fuzzy maximum power point tracking controllers for photovoltaic systems
Article Title: Optimal design of a fuzzy MPPT controller using an improved harris hawks optimization for photovoltaic systems
Article References: Hanafi, T., Shojaei, A. A., Mashayekhifard, J., & Honarbakhsh, A. (2026). Optimal design of a fuzzy MPPT controller using an improved harris hawks optimization for photovoltaic systems. Energy Informatics, 9(1), Article 70. https://doi.org/10.1186/s42162-026-00675-0
Image Credits: AI Generated
DOI: 10.1186/s42162-026-00675-0
Keywords: photovoltaic systems, maximum power point tracking, fuzzy logic control, Harris Hawks Optimization, solar energy, partial shading, renewable energy, DC-DC converters, Optimal, design, fuzzy, MPPT
News Source: Faith Mcneil. (November 7, 2026). Optimized Fuzzy Controller Enhances Solar Energy Tracking Under Shifting Weather Conditions. Scienmag.
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Changes needed in solar farm suit  Republic-Times
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U.S. solar equipment inventories expanded by 126% during the second quarter of 2026 as project developers accelerated procurement to clear a series of federal trade cutoffs. 
Developers across the country are working to reconcile overlapping federal policies with distinct regulatory objectives. The industry spent the summer navigating the July 4 construction-start deadline, the July 24 tariff transition, Foreign Entity of Concern restrictions, and Federal Communications Commission rules regarding inverter components. Attention has now turned toward Dec. 4, when new Section 232 measures take effect for polysilicon, wafers, cells, and modules. 
For utility-scale solar and energy storage developers, operating in this environment requires restructuring multi-party contracts and building operational flexibility into project financing rather than speculating on spot market prices. 
Sabah Bayatli, chief executive officer of San Antonio-based developer OCI Energy, said the market spent late summer and early autumn focused on how Section 232 will dictate post-December pricing dynamics. 
Under the Section 232 proclamation, minimum import price thresholds sit at $0.22 per watt for solar cells and $0.38 per watt for finished solar modules. 
“Without further guidance from the government, it is hard for the market to price solar modules today, because there are two scenarios for modules post-December 4,” Bayatli told pv magazine USA. “It comes down to whether a manufacturer who imports cells from outside the country is able to sell finished panels for less than 38 cents.” 
In addition to price floor interpretations, developers are awaiting administrative guidance from federal trade agencies. U.S. Customs and Border Protection and the Department of Commerce are expected to issue procedural instructions detailing the self-certification forms importers must execute to clear shipments at entry ports after the deadline. 
Equipment delivery schedules for funded projects undergoing active construction remain largely insulated from immediate balance sheet shocks, as hardware for those sites was under contract prior to the proclamation. The primary exposure sits in long-term procurement structures for pipeline projects scheduled for construction in 2027 and beyond. 
To absorb regulatory volatility, OCI Energy relies on collaborative contract structures that spread policy risk among project sponsors, equipment vendors, EPC contractors, lenders, and off-takers. 
“These multiple stakeholders need to come together through you as a sponsor to make sure there is flexibility on managing future tariffs that you do not have visibility on today,” Bayatli said. “In the contract, you see change in law or change in tariff clauses that allow the developer to share risk across multiple stakeholders so no single entity carries the full exposure.” 
When trade policy generates expenses that cannot be absorbed within fixed construction budgets, the cost is ultimately transferred to electricity buyers. 
“Eventually, any additional tariffs that you did not bake inside your financial model will flow into the power pricing,” Bayatli said. “What that translates to is having a higher PPA pricing to make the project economically work.” 
Despite the friction created by shifting trade mandates, market fundamentals and long-term project pipelines remain firm as developers continuously adapt to regulatory shifts. 
“As a developer, you are always on your toes these days,” Bayatli said. “You have to catch up with the market and adjust to regulatory changes, but developers will always find a way to navigate through it.”
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Tuesday, November 10, 2026
5:00 pm – 6:00 pm CET, Berlin, Paris, Madrid
The new issue of pv magazine Global is out now!
Available in print and digital – get your copy today!
Day 1 | Europe’s Solar and Storage Markets 2027: What works where?
Day 2 | Solar + Storage Co-location: Three markets, three business cases
Day 3 | Solar Quality: Which technical risks still need better answers?
Day 4 | Cybersecurity and Procurement: What can European solar projects source in 2027 and beyond?
Friday, November 13, 2026
10:00 am – 11:00 am CET, Berlin, Paris, Madrid
As a media partner of Genera 2026, pv magazine will organize and moderate a session in Spanish in Madrid, during International Electrification and Decarbonization Week.
Monday, November 23, 2026
11:00 am – 12:00 pm CEST, Berlin, Paris, Madrid

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Renewable energy in aquaculture: review maps solar, wind and modelling tools
Aquaculture is expanding fast, but its farms still run largely on fossil fuels, and a new structured review argues that the water-energy-food nexus offers the clearest framework for changing that. The review, published in Energy Reports, pulls together renewable-energy technologies, modelling approaches and case studies to assess how solar, wind, wave and hybrid systems could decarbonise fish and shellfish production while keeping water and food demands in balance.
The authors, from a team led by Ana Glavina and Hrvoje Mikulčić, conducted a structured, semi-systematic literature review covering publications from 2001 to 2025, retrieved from ScienceDirect, Scopus and Web of Science with a final search in December 2025. Of 10,419 records identified, 639 survived initial screening and 66 studies formed the final qualitative synthesis, supplemented by 133 contextual references. Most of the synthesis corpus is recent: 86.4 percent of the included studies were published from 2018 onward, with a median publication year of 2021.
The review’s bibliometric analysis underscores how young the field remains. A Scopus corpus of 1,326 documents on renewable energy in aquaculture grew roughly thirty-four-fold, from seven publications in 2001 to 237 in 2025, yet that output still represented only about 9 percent of the broader aquaculture-energy literature in 2025. China leads publication output, followed by the United States, the United Kingdom, India, Italy, Spain, Germany, Norway, Australia and Indonesia, and roughly 27 percent of documents involve international co-authorship organised around a Europe-China-US core.
On the demand side, the review documents the sector’s heavy fossil-fuel dependence. Capture fisheries consumed an estimated 40 billion litres of fuel in 2011, releasing 179 million metric tons of CO2-equivalent emissions, while aquaculture-related energy consumption in 2017, including grow-out activities and production of feed and hatchery inputs, was linked to 245 million tonnes of greenhouse gas emissions. In farmed catfish operations, electricity dominates, particularly for aeration, followed by diesel and petrol, and farms have gradually shifted from diesel engines to electric aerators. Wild-capture fisheries such as Alaskan salmon operations still rely primarily on diesel for vessels, tenders and processing generators.
Among the technologies reviewed, solar photovoltaics emerge as the most developed option. In a comparison for shrimp farming in Thailand, Nookuea and colleagues found that PV outperformed wind at equal cost; a PV-only system reached roughly 53 percent reliability at a life-cycle cost below US$1 million, while adding battery storage lifted reliability to about 90 percent. Floating PV offers side benefits: comparative research has reported 7.4 to 27.7 percent higher energy yields than ground-mounted PV due to cooling effects, and covering 95 to 100 percent of a reservoir’s surface can prevent nearly 90 percent of water loss. In Spain, floating PV reduced evaporation by 25 percent of a reservoir’s total capacity, and a 1 MW system in Visakhapatnam, India, saved about 42 million litres of water.
Aquavoltaics, where panels sit above fish ponds, show similar dual-use promise. Covering up to 60 percent of ponds had only minor effects on production while enabling cultivation of seaweeds, mussels, tilapia and perch under the panels, and installing PV above water can reduce evaporation by up to 85 percent. The review also flags a caution: excessive coverage can cut light availability and primary productivity and alter water quality, and cheaper on-site renewable energy could encourage intensification that partly offsets environmental gains, echoing rebound effects documented for irrigation modernisation in Spain and solar-powered groundwater pumping in Tunisia.
Offshore wind offers another pathway. Chen and colleagues validated a semi-submersible floating wind turbine integrated with an offshore aquaculture cage against wave-basin tests, finding that adding the cage slightly increased horizontal motions but improved stability by reducing pitch, raised mooring tensions modestly within design limits, and left average power production largely unchanged. Liu and colleagues explored a 5 MW turbine paired with an open-ocean aquaculture ship using AQWA simulations, showing generally reliable behaviour, though further site-specific testing is needed. The review cautions that biofouling on nets and structures, which increases cleaning frequency, maintenance labour and downtime, is seldom quantified in techno-economic assessments, so feasibility estimates for co-located systems may be optimistic.
Wave energy remains less mature but potentially useful for offshore farms. An assessment of offshore finfish aquaculture estimated an average electricity demand of about 700 kWh per day with daytime peaks of 100 to 120 kW; meeting the full daily requirement would need a wave-power resource of roughly 30 kW per metre of wave front, assuming a 30 percent capacity factor and a combined capture width of 3 to 4 metres. Resources of 20 to 40 kW per metre were considered potentially sufficient, while 5 to 20 kW per metre could support hybrid systems, though summer availability may limit continuous supply.
On the modelling side, the review organises approaches into six families: environmental impact assessment, techno-economic evaluation, dynamic systems and scenario analysis, spatial planning, operational prediction, and adoption and behavioural modelling. Life-cycle assessment studies reveal how dominant feed is: at Greek and Albanian sea bass cage farms with feed-conversion ratios of 2.01 and 2.13, feed contributed 76.5 to 99.9 percent of impact categories and 90.6 percent of global-warming impact at the Greek farm, while fry production accounted for 99.0 to 99.9 percent of water consumption. Optimisation work includes a mixed-integer linear programming model for renewable-powered recirculating aquaculture systems that cut costs by roughly 35 percent with payback periods around seven years, and a hybrid PV-wind-hydrogen system for aeration that reduced annual CO2 emissions by about 20 percent compared with grid-powered paddlewheel aeration.
The review’s most distinctive contribution is conceptual: it identifies time-varying biological demand, such as fish oxygen needs and growth requirements, as the coupling variable that could join biological monitoring to renewable-energy dispatch. Existing studies address at most two of the three planes an energy-aware aquaculture digital twin must join: biological and water-quality state, operational decision-making, and energy supply. The authors propose a six-stage pathway, anchored to approaches already demonstrated separately in the literature, and conclude that the limiting factor for intelligent, energy-aware aquaculture is integration rather than component availability. They stress that the contribution is conceptual and organisational rather than empirical, and that feasibility ultimately depends on local resource availability, site conditions, grid access, technology maturity, maintenance and biofouling challenges.
Subject of Research: A structured review of renewable-energy integration in aquaculture through the water-energy-food nexus, covering technologies, case studies and modelling approaches
Article Title: Renewable energy integration in aquaculture through the water-energy-food nexus: A structured review of technologies and modelling approaches
Article References: Glavina, A., Jurić, F., Wang, B., & Mikulčić, H. (2026). Renewable energy integration in aquaculture through the water-energy-food nexus: A structured review of technologies and modelling approaches. Energy Reports, 16, Article 109854. https://doi.org/10.1016/j.egyr.2026.109854
Image Credits: AI Generated
DOI: 10.1016/j.egyr.2026.109854
Keywords: aquaculture, renewable energy, water-energy-food nexus, solar photovoltaics, floating PV, offshore wind, wave energy, life-cycle assessment, digital twins, techno-economic analysis, biofouling, aquavoltaics
News Source: Faith Mcneil. (November 4, 2026). Renewable energy in aquaculture: review maps solar, wind and modelling tools. Scienmag.
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“Can I get something to make this work for my battery?”
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Having solar panels and a home battery turned out to be no guarantee of blackout protection for one homeowner in the United Kingdom, who discovered that their installation could not keep the lights on when the grid failed.
The setup at the center of a post in Reddit’s r/SolarUK community consisted of a heat pump, 11 solar panels, and a home battery.
Blackout protection was the reason they wished they had bought a Tesla Powerwall instead, despite being pleased with their existing system’s performance. They couldn’t understand why the system wouldn’t work when the grid went down. 
The original poster asked: “Is there any advice or knowledge I am missing? Can I get something to make this work for my battery?” 
“There is a home-backup option for Enphase,” one commenter quickly replied, referring to the type of battery the OP had.
Other respondents pointed to the installation’s inverter, gateway, and changeover equipment as important considerations. For buyers comparing those configurations, EnergySage offers a resource for exploring battery products and comparing competitive installation estimates.
EnergySage has partnered with electrification company Qmerit to help homeowners secure the best available battery-storage pricing. Comparing quotes that explicitly include the desired backup equipment can help buyers understand what each installation offers.
Without sufficient battery storage, electric showers, cookers, and similarly power-hungry appliances should be left off the backup supply, one commenter advised. Lights and sockets were their recommended priorities. A different user advocated for a flexible, but more comprehensive setup.
With energy prices through the roof, there’s never been a better time to go solar — and EasyHome can help you find the best prices from the best installers in your area.
EasyHome takes the guesswork and headaches out of energy upgrades by showing you estimated savings from a network of vetted local partners. To get started, just enter your ZIP and share a few details about your home — seeing your estimate is really that easy.
Frequent damage to rural power lines from falling trees prompted one homeowner to choose a whole-home backup system to protect their property. With the electrical panel, inverter, and gateway spread across three rooms, that installation needed extensive cable routing.
Control over when to draw on stored electricity appealed to another commenter more than automatic battery takeover. Their setup used a manual changeover switch. Unknowingly consuming battery power during an outage was what they wanted to avoid. The manual arrangement let them hold the charge in reserve until they needed it.
For the homeowner, the next step is to ask an installer which compatible equipment would provide backup power and which circuits it could serve. That could help them land the outage protection and energy independence they were seeking, while stored solar electricity can help lower electricity bills by reducing purchases from the grid.
Before commissioning an installation, buyers can request a written scope specifying whether the changeover will be automatic or manual, which circuits will receive backup power, and which appliances the system can run.
“Just about any modern inverter/battery can provide backup power if installed and set up with that in mind,” a user suggested.
For households seeking a smaller-scale alternative, Pila offers plug-and-play battery backup at a substantially lower price point than whole-home backup systems. That option serves a different need from the extensive wiring described by one owner.
The OP isn’t alone in finding that solar panels and a battery don’t necessarily keep the lights on during a blackout. 
• A U.K. homeowner discovered that blackout backup costs extra after buying solar and storage.
• A homeowner’s solar stopped working during outages despite battery backup.
• A U.S. homeowner discovered solar panels go dark during blackouts without additional equipment.
• A homeowner with 8 kW of solar still relied on gas cans during blackouts.
Get TCD’s free newsletters for easy tips, smart advice, and a chance to earn $5,000 toward home upgrades. To see more stories like this one, change your Google preferences here.
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An international research team has developed a method to determine the tilt and azimuth of rooftop PV arrays using operational power data. Accurate orientation data is essential for estimating electricity generation and detecting faults, but installation records are often missing or incorrect, while site inspections are impractical for large PV portfolios.
“This study provides a method to recover panel tilt and azimuth from operational power data while accounting for partial shading and the geometric limit at low tilt,” corresponding author Hanrong Huang told pv magazine. “We tested it on 17 commercial rooftop systems in Australia with independently verified orientations. It offers a practical way to fill in missing or wrong tilt and azimuth records without a site visit.”
The researchers developed and tested the method using operational data collected in 2025 from commercial rooftop PV systems in Australia. The dataset included DC power measurements recorded at five-minute intervals for each maximum power point tracker (MPPT). They used pvlib clear-sky modeling and ERA5 weather data to estimate solar irradiance on panels at different tilt and azimuth angles.
After selecting periods with high direct irradiance and sufficient morning and afternoon measurements, the researchers used an optimization algorithm to identify the orientation that best matched the measured power output. The algorithm also adjusted effective system capacity to account for power losses.
The team also compared two fitting metrics, R² and Huber loss, and assessed the effects of shading, low tilt angles, data resolution, module temperature, and inverter clipping on accuracy. R² measures how well modeled power output matches observed data, while Huber loss reduces the influence of outliers, such as power deviations caused by shading, when fitting the model.
“On unshaded systems the method recovered tilt to within about 2° and azimuth to within about 4° median error using only DC power data and site coordinates,” said Huang. “Because it works on DC data, it can also find the orientation of each array separately at the MPPT level.”
Clear-sky modeling consistently outperformed ERA5, which resulted in median tilt errors of 10° to 12° and azimuth errors of 48° to 62° for unshaded systems. Shading increased clear-sky azimuth errors from 4° to 35° when using Huber loss and from 15° to 27° when using R². At tilt angles below 5°, azimuth was difficult to determine because panel orientation has little effect on incident irradiance, limiting the impact of such errors on estimated electricity generation.
“Our next step is to reduce the effect of partial shading on recovery accuracy, which is the main limitation of the method,” Huang said. “We also want to make it robust to other real operating conditions such as inverter clipping and tripping so that it can be applied reliably at large scale.”
The researchers presented their findings in “Recovering rooftop photovoltaic array tilt and azimuth from operational power data,” published in Solar Energy. The research team included scientists from the Chinese Academy of Sciences, Australia’s University of New South Wales, Diagno Energy, and Global Sustainable Energy Solutions.

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Tuesday, November 10, 2026
5:00 pm – 6:00 pm CET, Berlin, Paris, Madrid
The new issue of pv magazine Global is out now!
Available in print and digital – get your copy today!
Day 1 | Europe’s Solar and Storage Markets 2027: What works where?
Day 2 | Solar + Storage Co-location: Three markets, three business cases
Day 3 | Solar Quality: Which technical risks still need better answers?
Day 4 | Cybersecurity and Procurement: What can European solar projects source in 2027 and beyond?
Friday, November 13, 2026
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As a media partner of Genera 2026, pv magazine will organize and moderate a session in Spanish in Madrid, during International Electrification and Decarbonization Week.
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A research team at Pennsylvania State University in the USA evaluated residential heat pumps paired with thermochemical energy storage (TCES) for long-duration energy storage. The researchers aimed to determine whether storing heat ahead of cold spells could reduce heating-related electricity demand when heat pumps become less efficient and the grid faces greater pressure.
“In this paper, we model a TCES system using potassium carbonate (K₂CO₃) as the thermochemical material (TCM),” the group explained. “This system can be thermally charged by an electric heat pump well in advance and discharged to meet the building’s heating load during the heating season. The optimal operation is assessed during the most stressful time of the heating season, based on projections for 2050.”
The researchers used simulation and linear optimization to evaluate an air-source heat pump coupled with potassium carbonate-based TCES and a battery in a 220.82 m² single-family home under New York City conditions. Hourly grid projections for a 95% decarbonized electricity system in 2050 were translated into a varying building electricity-demand limit.
The TCES model represented heat storage through salt dehydration and heat release through hydration, with approximately 80 C water required for charging and 35 C water supplied to radiant heating during discharge. The team further optimized hourly operation to minimize electricity consumption while meeting heating demand and respecting the electricity limit.
Reference charging/discharging efficiencies were 45%/80% for TCES and 95%/95% for the battery. Across 96 simulations, they varied heat-pump performance, TCES specific heating power, and charging efficiency to assess their effects on required storage capacities.
According to the results, the reference system required 68 kWh of thermal storage and 168 kWh of battery capacity, with batteries providing most of the storage response. Higher warm-weather heat-pump coefficient of performance (COP), improved TCES charging efficiency, and greater specific heating power favored thermal storage, while better cold-weather COP reduced both storage requirements. In the scenario most favorable to thermal storage, the optimized TCES capacity requirement was 894 kWh.
“These findings suggest two potential pathways for future researchers and manufacturers to enable efficient, long-duration energy storage responses from heat pumps and TCES systems,” the academics noted. “The first approach involves increasing TCES’s charge efficiency from 45% to 65%, while the second involves enhancing the heat pump’s COP by at least 25%, even if it degrades in cold climates.”
The researchers said further development of the proposed configuration could focus on enhancing the thermal storage system’s specific heating power. Such advances could enable TCES to provide a greater share of heating demand during periods of grid stress, reducing reliance on battery storage. However, the viability of the combined system would depend on improvements in component performance and the ability to integrate thermal storage with residential heating systems.
The article “Long duration energy storage through residential heat pumps with thermochemical energy storage” has appeared in Energy.
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The new issue of pv magazine Global is out now!
Available in print and digital – get your copy today!
Day 1 | Europe’s Solar and Storage Markets 2027: What works where?
Day 2 | Solar + Storage Co-location: Three markets, three business cases
Day 3 | Solar Quality: Which technical risks still need better answers?
Day 4 | Cybersecurity and Procurement: What can European solar projects source in 2027 and beyond?
Friday, November 13, 2026
10:00 am – 11:00 am CET, Berlin, Paris, Madrid
As a media partner of Genera 2026, pv magazine will organize and moderate a session in Spanish in Madrid, during International Electrification and Decarbonization Week.
Monday, November 23, 2026
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Energies Media
Almost every household desires to use renewable energy to power their homes.
However, the upfront costs of fitting solar panels on top of one’s roof keep many away from taking the leap.
Last month, Cobb EMC launched SolarShare, a 1-megawatt facility that allows members to use solar energy without installing rooftop panels. 
Like Netflix, SolarShare operates using a subscription model, but how does it actually work?
People staying in apartment blocks cannot easily install solar panels on their roofs. 
The same goes for those renting premises or living in homes with shaded roofs.
For many years, access to solar energy was limited to those who could install rooftop panels, until recently. 
The first community solar project was created in Washington around twenty years ago. 
Today, there are thousands operating in the United States.  
Shared solar allows households, renters, and businesses to use solar energy without having to install a rooftop panel. 
Instead, a renewables developer or utility municipality will build a large centralised solar farm. 
The solar farm is then connected to the power grid. 
Then local residents and businesses can sign up or ‘subscribe’ to use some of the blocks of solar panels.
The power produced by the subscribed panels is measured, and then deducted from the subscriber’s monthly electric bill.
Last month, Cobb EMC, a not-for-profit, member-owned electric cooperative, launched SolarShare.
The SolarShare project is situated along Interstate 75 in Georgia, specifically in Cherokee County.
The project is a collaborative initiative between Cobb EMC and Gas South. 
The two companies built it in partnership with the Georgia Department of Transportation.
Essentially, it is a solar farm with over 2300 solar panels installed across roughly 5 – 7 acres of land.
With a capacity to generate 1 MW of solar energy, it can power roughly 200 homes. 
“This project demonstrates how innovation and collaboration can create practical energy solutions,” says Tim Jarrell, Executive VP at Cobb EMC.
In addition, Tim notes that SolarShare will give its subscribers an affordable way to access local solar generation.
The SolarShare project is specifically designed for people who want to use solar energy but cannot afford traditional rooftop solar.
One of the main benefits of the SolarShare project is that it allows local residents access to using solar energy.  
That means people who rent or live in apartments now have an option to switch to solar.
In addition, even those living in standalone homes can opt in without the upfront investment of installing rooftop panels. 
Instead of investing in physical solar panels, Cobb EMC allows members to subscribe to the project by buying virtual blocks. 
One block represents roughly three solar panels. 
The subscription fee for each block is $19 per month.
Local residents can subscribe for up to 5 blocks, and local businesses can subscribe for up to 50 blocks.  
Each block yields approximately 150 kWh of electricity credits per month. 
The total amount of electricity credits generated per month is then automatically deducted from the subscriber’s monthly utility bill.
The use of clean, green energy is definitely speeding up across the globe.
While it once seemed like a far-off dream, innovation is rapidly making renewable energy more accessible to even more people.
Ultimately, shared solar services are a great example of how to expand clean energy access while keeping costs manageable for everyday consumers.
Now, with the launch of the SolarShare solar field project, all households in the Georgia area can access solar energy.
By subscribing to virtual blocks, local residents and businesses will no longer need to invest in installing solar panels.

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New Delhi, Nov 7 (KNN) India's renewable energy capacity is projected to reach around 530 GW by 2030, with solar photovoltaic (PV) accounting for over 80 per cent of the expansion, according to the International Energy Agency (IEA).
In its India Renewable Energy Market Report 2026, the agency said renewable capacity crossed 300 GW in the fourth quarter of 2026, nearly quadrupling over the past decade, ANI reported.
Solar capacity is expected to exceed 350 GW by 2030, while wind and hydropower are projected to reach nearly 90 GW and 75 GW, respectively. The growth would put India on track to meet its 500 GW non-fossil capacity target. The country achieved its goal of sourcing 50 per cent of installed electricity capacity from non-fossil sources in 2025, five years ahead of schedule.
Annual renewable capacity additions are expected to remain above 50 GW through 2030, against 49 GW in 2025. Under an accelerated growth scenario, they could reach 70 GW annually by the decade's end.
Renewable Generation to Nearly Double
Renewable electricity generation is projected to rise from around 500 terawatt-hours (TWh) in 2025 to 950 TWh in 2030, increasing its share of total generation from nearly 25 per cent to 35 per cent.
Solar PV is expected to contribute over half of renewable generation, with output tripling by 2030. Wind generation could increase by around 50 per cent.
The IEA attributed the expansion to competitive auctions, supportive policies, falling technology costs and rising commercial and industrial demand.
However, faster transmission expansion, energy storage and greater power system flexibility will be essential. Land acquisition, project delays and the financial health of distribution companies remain key challenges.
Addressing these constraints could accelerate renewable capacity deployment during 2026-2030 by more than 20 per cent, the agency said.
(KNN Bureau)

 
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NEW DELHI: India’s renewable energy capacity is projected to reach around 530 GW by 2030, with solar photovoltaic (PV) accounting for more than 80 per cent of the expansion, positioning the country as the world’s second-largest renewable energy growth market, according to the International Energy Agency (IEA).
In its India Renewable Energy Market Report 2026, the agency said the country’s renewable capacity has crossed 300 GW in the fourth quarter of 2026, almost quadrupling over the past decade.
Solar PV capacity is expected to exceed 350 GW by 2030, while wind power is projected to approach 90 GW. Hydropower capacity is forecast to reach 75 GW, supported by the commissioning of large conventional projects and accelerating investment in pumped storage.

The expansion would put India on track to meet its target of 500 GW of non-fossil fuel-based installed capacity by 2030. The country had already achieved its objective of sourcing 50 per cent of installed electricity capacity from non-fossil sources in 2025, five years ahead of schedule.
The IEA expects annual renewable capacity additions to remain above 50 GW through 2030, compared with 49 GW in 2025. Under an accelerated growth scenario, annual additions could reach 70 GW by the end of the decade.
Renewable electricity generation is also projected to nearly double from around 500 terawatt-hours (TWh) in 2025 to approximately 950 TWh in 2030. This would increase renewables’ contribution to India’s total electricity generation from nearly 25 per cent to 35  per cent.

Solar PV is expected to become the dominant contributor, accounting for more than half of renewable electricity generation by 2030. Its output is projected to triple between 2025 and 2030, while wind generation could increase by around 50 per cent.
The agency attributed the expansion to competitive auctions, supportive policy frameworks, falling technology costs and growing demand from commercial and industrial consumers.

However, sustaining the growth trajectory will require faster transmission expansion, energy storage deployment and improved power system flexibility. Land acquisition, project execution delays and the financial health of distribution companies also remain important challenges.
The IEA said addressing these constraints could accelerate renewable capacity deployment during 2026-2030 by more than 20 per cent. (ANI)

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Irradiance was above average across much of Europe in October 2026, as extended periods of high pressure produced clearer skies and offset several cloudy and unsettled intervals. Conditions were particularly favourable across central Europe and the Baltic States. However, low-pressure systems reduced irradiance in southern France and around the Black Sea, while several damaging autumn storms crossed western Europe, according
to analysis using the Solcast API.
Monthly irradiance was around 10% above the October average across large parts of the continent. The strongest positive anomalies occurred in Czechia, Slovakia and Hungary, where irradiance reached as much as 25% above average. Similarly large percentage increases were recorded in the Baltic States, although shorter daylight hours at these northern latitudes limited average daily irradiance to around 1.3 kWh/m².
Recurring high-pressure systems suppressed cloud formation and produced more settled, sunnier conditions across much of Europe. This pattern was consistent with a positive phase of the North Atlantic Oscillation during September and October, which strengthens the Azores high over the Atlantic, with increased high pressure ridging across Western Europe.
Not all regions fared so well. Irradiance across the southern half of France finished around 5% below average. Ukraine and Moldova were as much as 10% below average. Repeated low-pressure systems and weather fronts brought greater cloud cover and rainfall to the Black Sea area, limiting the amount of sunlight reaching the surface.
Southern France’s irradiance deficit was the result of an accumulation of several factors. Storm Adam in mid-October produced intense rainfall and flash flooding across parts of France, Spain and Corsica. Southern France was also subject to additional “épisode cévenol” thunderstorm events occurred during the month. These are a regional phenomenon which develops when warm, moisture-laden Mediterranean air encounters colder air near the elevated terrain of southern France, generating deep cloud and heavy rainfall that can sharply reduce irradiance.
Lower GHI across southern France and surrounding areas reflects the extensive cloud associated with the storm.
Two further named storms affected western Europe during the second half of October. Storm Austin crossed southern England and France, bringing wind and rain, while Storm Boelo later struck Scotland and Northern Ireland with severe gusts of over 130 km/h. The associated cloud and rainfall disrupted otherwise favourable irradiance conditions, while the strong winds damaged electricity transmission and distribution infrastructure. Power outages affected nearly 300,000 customers in France during Storm Austin, while cuts affecting 800,000 people were reported following Storm Boelo.
The Severe Weather Index uses Numerical Weather Prediction data to represent winds associated with larger weather systems and thunderstorms, with higher values indicating more severe conditions.
Elevated values extended from the Atlantic across the United Kingdom and into the North Sea. When forecast in advance, such conditions may prompt operators to prepare for potential grid interruptions, with actions such as pre-emptive charging of batteries.
Solcast produces these figures by tracking clouds and aerosols at 1-2km resolution globally, using satellite data and proprietary AI/ML algorithms. This data is used to drive irradiance models, enabling Solcast to calculate irradiance at high resolution, with typical bias of less than 2%, and also cloud-tracking forecasts. This data is used by more than 350 companies managing over 350 GW of solar assets globally.
The views and opinions expressed in this article are the author’s own, and do not necessarily reflect those held by pv magazine.
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Tuesday, November 10, 2026
5:00 pm – 6:00 pm CET, Berlin, Paris, Madrid
The new issue of pv magazine Global is out now!
Available in print and digital – get your copy today!
Day 1 | Europe’s Solar and Storage Markets 2027: What works where?
Day 2 | Solar + Storage Co-location: Three markets, three business cases
Day 3 | Solar Quality: Which technical risks still need better answers?
Day 4 | Cybersecurity and Procurement: What can European solar projects source in 2027 and beyond?
Friday, November 13, 2026
10:00 am – 11:00 am CET, Berlin, Paris, Madrid
As a media partner of Genera 2026, pv magazine will organize and moderate a session in Spanish in Madrid, during International Electrification and Decarbonization Week.
Monday, November 23, 2026
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EcoFlow, known for portable power solutions and an expanding residential focus, has launched two new series of portable power stations.
The Delta Gen4 and River Gen4 are both evolutions of well-known portable and backup power offerings, with EcoFlow seeking to shake up its design language, package into smaller volumes with weight reductions, and reduce power consumption.
The new models in the Delta Gen 4 series are the Delta 3800 Gen4 and 3000 Gen4, with the model numbers correlating to storage capacity: the 3800 Gen4 offers 3763 Wh (3.7 kWh), and the 3000 Gen4 offers 3072 Wh.
Both new Delta Gen4 models deliver 3.6 kW rated AC output and 7.2 kW surge power for heavy startup inrush currents. The Delta 3000 Gen4 has four charging methods, including AC, generator, solar PV, and alternator car charger, while Delta 3800 has six, adding solar plus alternator charging and solar plus generator.
In terms of weight, the 3800 Gen4 weighs 67.5 lbs or 30.6 kg, while DELTA 3000 Gen4 weighs 57.3 lbs or almost 26 kg.
Image: Flickr/
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EcoFlow claims both are the smallest and lightest portable power stations in their classes by capacity per pound. 
This is slightly apples and oranges: based solely on spec sheets, the Anker S5000, with 5,024 Wh at 97 lbs, offers 51.8 Wh per pound, compared with EcoFlow’s best density at 3763 Wh at 67.5 lbs, or 55.7 Wh per pound.
However the ESS News deep dive review of the S5000 did commend the unit for coming with wheels, along with a telescopic handle for portability. The EcoFlow Delta Gen4 series doesn’t offer wheels, just handles, which keeps packaging tighter and overall lighter, but may need a separate trolley to be truly portable.
EcoFlow says both models reduce their own power consumption by up to 70%, drawing just 14W with AC on (no load) and 3W in standby, compared with quoted industry averages of over 20W and 10W.
Adding intelligence to the mix, a mode of operation called Fridge Runtime Boost “reduces unnecessary energy use between refrigerator cooling cycles,” helping “keep food cold for 2–3 days during an outage”. 
A new Emergency Power Mode is also available, which forces a power station to reserve capacity for emergency DC power for supplying devices through longer outages, such as phones, even as the battery level reaches 0% on the display.
For added outage preparedness, Storm Guard Mode 2.0 integrates professional weather
data from the National Weather Service in the U.S. to help users prepare their power stations ahead of severe weather and potential outages. 
In UPS mode, a 10ms UPS switchover keeps connected electronics running through interruptions. 
On the smaller-size front is the new River Gen4 series, featuring the River 260 Gen4 and River 520 Gen4. Again, the model numbers align with capacity, with the 260 Gen4 packing 256Wh of capacity and 300 W power output in a more compact design that’s just over 6 lb, while the River 520 Gen4 packs 512Wh of capacity and 500 W output into a 10 lb design. Both feature removable carrying straps for easy portability.
The shift to reducing standby power is also evident here, with power draw at 6.6 W with AC on and 1 W in standby. Both models support four charging methods (AC, USB-C, solar and alternator), and include multiple AC and USB ports, including 140W bidirectional USB-C.
The River Gen4 series also offers Emergency Power Mode and UPS functionality. 
EcoFlow says the Delta Gen4 is now available on the EcoFlow website with early-bird pricing at $1,299 for DELTA 3000 Gen4 and $1,699 for DELTA 3800 Gen4. 
The River Gen4 series will be available for pre-sale beginning November 24.
Availability in other regions is dependent on EcoFlow’s rollout. 
EcoFlow in Japan actually launched the Delta and River Gen4 series earlier than the US, where they have been available since October 30th.
In Germany, the River 260 Gen4 is available from November 16th. 
For the Delta Gen4, a spokesperson responded to a question from ESS News, saying that EcoFlow is still confirming dates for European availability
EcoFlow also announced its Black Friday sales began on November 2 and will run through December 7 in the US.
In Germany, EcoFlow also announced Black Friday deals on the Stream series and Delta 3 series starting November 10 and November 13th respectively.
In Australia, a “sneak peek” early launch of Black Friday deals also began.
From ESS News

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MPC Energy Solutions says Mexico rule changes stall solar plant sale  BNamericas
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GONGHE, CHINA: Life has become unexpectedly easier and more lucrative for some shepherds on the world’s highest plateau, after China began carpeting the area with solar panels in a drive to diversify its energy mix.
“It has made grazing much easier for us,” said Li Yonglin, 25, one of those allowed to freely graze their sheep in a fenced solar park in Gonghe, a county in the northwestern province of Qinghai.
“In the morning, we simply open the gate to the sheep pen and don’t really need to look after them. They come back on their own in the evening, and we just pen them up.”
Li estimated the new approach had boosted his earnings to 50,000 yuan to 60,000 yuan (US$7,496.14 to US$8,995.37) from 10,000 yuan to 20,000 yuan when he followed the old way.
By July this year, state media said, 6,330 households in five townships had benefited from 56 grazing sites in Hainan, a culturally Tibetan area that encompasses Gonghe, but did not disclose how many got grazing access.
HIGHER INCOMES BUT TRADITIONS AT RISK
Such early signs suggest China’s projects sprawling over hundreds of acres on the vast Qinghai-Tibet plateau are boosting incomes for some, though researchers and others warn they are also eroding traditional ways of life.
One study estimated the region, sometimes called “the roof of the world”, where nomadic communities have grazed livestock for millennia, holds almost half of China’s solar energy potential, making it a focal point for renewable energy efforts.
Solar overtook coal in July as the country’s biggest source of installed power capacity, and authorities plan to expand wind and solar power generation by a further 53% in the next five years.
The complex Li visits, sprawling over 148,000 acres (60,000 hectares), uses grazing sheep to reduce mowing costs, said Cao Jun, a safety supervisor for a State Power Investment Corporation (SPIC) project in Hainan.
It leads to a “win-win situation”, he told Reuters, with power generated by the plant sent nationwide to cities such as Beijing, the capital, and the commercial hub of Shanghai.
But the integration of livestock and solar infrastructure has not been universally welcomed.
Researchers say solar projects are transforming life on the plateau, where thousands of Tibetan nomads were resettled into rural townships in the early 2000s as the government sought to reverse ecological degradation.
“You can find some places (to graze) around the solar panels, but these are not suitable for nomads and shepherds to hold their livelihood,” said researcher Tsewang Dorji at the Tibet Policy Institute in India’s hill town of Dharamsala.
Plateau dwellers get little say in the conversion of pastures to solar power projects, said one researcher studying environmental conservation and new energy infrastructure there.
PROJECTS FRAGMENT ONCE-OPEN GRAZING SPACE
Such installations fragment once-open grazing lands, making herders’ task of watching over livestock harder, added the researcher, who sought anonymity in order to protect collaborators.
Sheep from 16 households were allowed to graze in a solar park for part of the year, the government in Gonghe said in 2024.
A small number of nomads were “tokenistically employed to graze sheep” but goats and yaks were generally excluded, said Mandie McKeown, advocacy director at the environmental charity Foundation for Gaia, which is based in Britain.
Evidence shows “This isn’t pastoralism as it’s traditionally been practised,” McKeown told Reuters.
Wind rattling through solar farm posts and wires produced “persistent and unsettling” sounds that disturbed both people and animals, anthropology researcher Sanggay Tashi at the University of Colorado Boulder said in an article in June, citing people in Qinghai.
Online government records in 2017 showed one undated complaint that Gonghe’s photovoltaic power stations had damaged grasslands, leaving sheep and cattle little grass to eat.
The records, which cited Hainan as the administrative region for the case without identifying the aggrieved person, said an investigation found no truth in the accusation, while adding that grazing was not permitted in the area.
Authorities in Qinghai did not respond to requests for comment.
Not everyone in Gonghe is complaining, though.
“Life has changed tremendously,” said another shepherd, Wen Yujun, who now finds himself able to manage a herd of 700 to 800 largely on his own.
“I never could have imagined it before,” added the 43-year-old, who estimated his annual income had risen eight-fold to about 80,000 yuan.
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China’s soaring clean power curtailment highlights regulatory gaps  PV Tech
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Plans for a controversial solar farm that residents believed had been withdrawn appear to be back on the table after a fresh application was submitted.
Earlier this year, power producer ILOS New Energy UK Ltd unveiled proposals for a 22.5-megawatt solar farm on land at Upper Walton Farm, near Onibury.
The plans attracted criticism from tenant farmer Rob Alderson, who said the development would cost him his livelihood, as well as opposition from local campaigners and councillor Josh Dickin.
ILOS withdrew a resubmitted Environmental Impact Assessment (EIA) screening request on October 19 before submitting a third request nine days later.
The latest application describes the site as “Norton Estate, Upper Onibury”, whereas previous submissions referred to it as “Upper Walton Farm”. However, Keep Shropshire Beautiful says the scale of the proposed development remains unchanged, with plans for a 22.5-megawatt ground-mounted solar farm covering almost 45 hectares.
Onibury Parish Council raised concerns with Shropshire Council over an earlier decision that a full Environmental Impact Assessment was not required.
While the council’s February screening opinion concluded an EIA was unnecessary, it identified ecology, cultural heritage and archaeology, and cumulative environmental effects as issues requiring further consideration.
According to Keep Shropshire Beautiful, a second screening request was submitted after the parish council raised its concerns, but that application was later withdrawn and replaced by the latest submission.
The campaign group has now lodged formal representations with Shropshire Council arguing that a full Environmental Impact Assessment should be required before any planning application is considered.
Rachel Pitt, speaking on behalf of Keep Shropshire Beautiful, said: “This is now the third time in under a year that ILOS have asked Shropshire Council to confirm they do not need to carry out a full environmental assessment.
“Each submission has described the site slightly differently. We are asking the council to look carefully at what is actually being proposed here and require the thorough assessment this landscape deserves.”
Mr Middleton said the group’s submission raises concerns over the impact on Grade 2 agricultural land, classified as Best and Most Versatile farmland, and the site’s location within a Site of Special Scientific Interest (SSSI) Impact Risk Zone.
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Democratic sweep in US midterms brings reprieve for solar, but federal gridlock persists  PV Tech
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The City of Ekurhuleni has become the first municipality in South Africa to officially implement the Energy Partnership Programme (EPP), paving the way for the procurement of 400MW of new electricity generation capacity through independent power producers (IPPs).
Executive Mayor Alderman Nkosindiphile Xhakaza welcomed the announcement by the Minister of Electricity and Energy, Dr Kgosientsho Ramokgopa, describing it as a significant development in the city’s efforts to address energy security and attract investment. The programme will comprise 100MW of solar photovoltaic (PV) generation and 300MW of gas-to-power capacity.
According to the city, the initiative is expected to unlock approximately R8.5b in private investment and create about 5 000 direct and indirect jobs. Of these, 4 350 are projected to be created during construction, with a further 350 permanent positions expected.
ALSO READ: City of Ekurhuleni assures residents of drinking water safety standards
The city also anticipates saving approximately R36b over 20 years on bulk electricity purchases, while helping to cushion residents and businesses against electricity tariff increases.

The mayor said the programme was an important step towards addressing the effects of load-shedding and electricity supply instability on households and businesses.
“By being the first to implement this programme, we are not just talking about fixing the energy crisis, we are actively solving it,” he said.
R16.2b infrastructure investment anticipated
Beyond the 400MW procurement programme, the city estimates that infrastructure investment across its broader energy initiatives could reach R16.2b.
The anticipated investment is distributed across four areas:
• Solar PV: R10b.
• Waste-to-energy: R4b.
• Natural gas: R1b.
• Innovative technologies: R1.2b.
These figures represent the city’s projected investment across its energy initiatives and should not be confused with the R8.5b in private investment specifically anticipated from the 400MW programme.
The city said the approval would provide greater certainty to developers and investors involved in its IPP programme, allowing some appointed producers to move towards financial close and begin construction of their power plants. Other developers are expected to submit completed funding applications to commercial banks to secure the capital required for their projects.
Programme dates back to 2017
Ekurhuleni began its independent power producer programme in 2017 and has since appointed more than 75 IPPs through two bid windows. The city first applied for a Section 34 determination under the electricity generation regulatory framework in 2020.
According to its statement, the application progressed through the review stage and was awaiting concurrence from the National Energy Regulator of South Africa (NERSA).
The city subsequently finalised other requirements, including its power purchase agreement (PPA) contract and the establishment of an escrow account.
In March 2026, the city received written comments from the Department of Electricity and Energy following consultation under Section 33 of the Municipal Finance Management Act regarding projects in its second IPP bid window. The department clarified that organs of state must apply for a Section 34 determination when developing or procuring new electricity generation capacity.
Ekurhuleni then submitted an application covering both Bid Window 1 and Bid Window 2 of its IPP programme. The city describes the Section 34 determination as the final approval required to enable the projects to proceed. With the determination in place, appointed IPPs can advance towards securing financing, finalising project requirements and commencing construction, subject to the completion of the remaining project-specific processes.
What it could mean for residents and businesses
The programme comes as electricity reliability and affordability remain important concerns for households and businesses across Ekurhuleni, a major industrial and commercial centre. Additional generation capacity could help diversify the city’s electricity supply and reduce its dependence on bulk purchases.
The anticipated investment and employment opportunities could also benefit local communities, particularly during the construction phase.
The city also held a sod-turning ceremony on October 22 at the Ekurhuleni Fresh Produce Market to mark the start of construction of the market’s 25MW solar PV and sustainable energy storage project under the Ekurhuleni Independent Power Producer Programme (EIPPP).
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A Suffolk group has formed to fight solar farm plans covering 2,200 acres around a Suffolk town.
Eye Action was created to oppose proposals for solar generation, cabling, a substation and battery storage across land near Eye.
Jen Cooper, one of the founders along with Wendy Aiken and Tessa Prior, said: “Our main concern is the over industrialisation of Eye.”
Full map of EcoPOwer Suffolk (Image: Jen Cooper)
The proposed sites include former deer hunting parks, high-grade agricultural land and areas close to historic locations. These include Eye Castle, a former Benedictine Priory, the 15th-century Church of St Peter and St Paul, the Guildhall and more than 160 listed buildings.
Roman hoards, including the Hoxne Treasure, have been found near the proposed sites. The group also said there was evidence of Pagan Saxon burial sites and settlements.
Ms Cooper said: “There would be a very real and intense impact, especially during construction, which would take around 2 years.”
She said construction would affect several villages and roads, with cabling planned in all directions. The group also raised concerns about traffic, glare, heat islands, high-voltage currents and the loss of farmland.
Land surrounding Eye is being proposed for solar farms (Image: Jen Cooper)
Ms Cooper said: “The scale and location is totally unsuited to a market town in the countryside.”
The group’s first public meeting took place on October 28. It said the turnout was strong and that some residents had not known about the project or understood its scale.
An online petition has been launched at change.org/stopsuffolksolaronarableandhistoricland. Eye Action plans further campaigning with residents and groups in the east of England.
Ms Cooper said: “We are opposed to the development in principle because as it stands, it is privately funded and will not benefit local people.”
Arable land around Eye (Image: Jen Cooper)
She said MP Adrian Ramsay and local councils had voiced concerns to the developer. The group said it supported renewable energy in suitable locations, but claimed offshore wind could provide the same output with fewer impacts.
Ms Cooper said: “This is about protecting our towns future.”
The campaign wants greater scrutiny of privately funded energy projects and is asking local people to join its efforts.
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Turkey awards 785MW solar PV in latest YEKA tender  PV Tech
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ANI
07 Nov 2026, 09:29 GMT+10
New Delhi [India], November 7 (ANI): India’s renewable energy capacity is projected to reach around 530 GW by 2030, with solar photovoltaic (PV) accounting for more than 80% of the expansion, positioning the country as the world’s second-largest renewable energy growth market, according to the International Energy Agency (IEA).
In its India Renewable Energy Market Report 2026, the agency said the country’s renewable capacity has crossed 300 GW in the fourth quarter of 2026, almost quadrupling over the past decade.
Solar PV capacity is expected to exceed 350 GW by 2030, while wind power is projected to approach 90 GW. Hydropower capacity is forecast to reach 75 GW, supported by the commissioning of large conventional projects and accelerating investment in pumped storage.
The expansion would put India on track to meet its target of 500 GW of non-fossil fuel-based installed capacity by 2030. The country had already achieved its objective of sourcing 50 per cent of installed electricity capacity from non-fossil sources in 2025, five years ahead of schedule.
The IEA expects annual renewable capacity additions to remain above 50 GW through 2030, compared with 49 GW in 2025. Under an accelerated growth scenario, annual additions could reach 70 GW by the end of the decade.
Renewable electricity generation is also projected to nearly double from around 500 terawatt-hours (TWh) in 2025 to approximately 950 TWh in 2030. This would increase renewables’ contribution to India’s total electricity generation from nearly 25 per cent to 35  per cent.
Solar PV is expected to become the dominant contributor, accounting for more than half of renewable electricity generation by 2030. Its output is projected to triple between 2025 and 2030, while wind generation could increase by around 50 per cent.
The agency attributed the expansion to competitive auctions, supportive policy frameworks, falling technology costs and growing demand from commercial and industrial consumers.
However, sustaining the growth trajectory will require faster transmission expansion, energy storage deployment and improved power system flexibility. Land acquisition, project execution delays and the financial health of distribution companies also remain important challenges.
The IEA said addressing these constraints could accelerate renewable capacity deployment during 2026-2030 by more than 20%. (ANI)

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Bangladesh Market Sees Surge In Solar Panel Demand Amid Energy Crisis  NDTV
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Czech grid data reveal a small share of solar connections drives most reinforcement costs
A new analysis of roughly 156,000 solar photovoltaic connection applications filed with the largest distribution company in the Czech Republic shows that the overwhelming majority of low-voltage solar projects were connected without any new grid investment, while a small, costly minority accounted for nearly all of the reinforcement spending. The study, published in Energy Reports by T. Králík and J. Berka, examined applications received by CEZ Distribuce between 2020 and 2024 and applied a cost-efficiency screening framework that converts the grid reinforcement triggered by each request into a single figure: euros of network investment per kilowatt of installed capacity.
The headline numbers are striking. Of the 1,493 megawatts of solar capacity approved at the low-voltage level, 1,393 megawatts, or 93 percent, required no additional project-specific reinforcement at the time of application. All grid-related investments for low-voltage solar connections during the period were tied to the remaining 100 megawatts, about 7 percent of connected capacity, and those investments amounted to roughly 323 million euros. Averaged across the entire low-voltage portfolio, that works out to about 216 euros per kilowatt, but when the same spending is divided only by the reinforcement-linked capacity, the figure rises to approximately 3,230 euros per kilowatt. The authors stress that the 216-euro figure is a capacity-weighted portfolio average whose denominator includes the 1,393 megawatts connected at zero marginal cost, so it should not be read as the cost intensity of the reinforcement-linked minority.
The zero-cost connections do not mean the network was free to build. The study notes that the necessary reinforcements had largely been implemented in earlier periods, when broader network development and asset renewal created hosting capacity that later absorbed new solar connections without immediate upgrades. This latent-capacity effect is not limited to photovoltaics; the authors point out that it also applies to the electrification of heating and transport, including electric-vehicle charging infrastructure. The finding illustrates how broadly targeted infrastructure investment, even when not designed for renewable integration, can inadvertently enable a substantial volume of decentralized generation at minimal incremental cost.
At the medium-voltage level, the picture is very different. CEZ Distribuce approved 7,571 megawatts of solar connections between 2020 and 2024, supported by about 263 million euros of investment measures, yielding an average specific connection cost of roughly 35 euros per kilowatt, nearly six times lower than the low-voltage average. A significant portion, 2,089 megawatts, was connected without any new investment, and a further 5,000 megawatts was connected through low-cost measures averaging just 3 euros per kilowatt, typically minor modifications such as replacing support structures with disconnectable variants. Only the remaining 571 megawatts required more substantial, capital-intensive investment.
Costs were also rising over time. The capacity-weighted average specific connection cost at the low-voltage level climbed from 114 euros per kilowatt in 2022 to 195 euros per kilowatt in 2023 and 216 euros per kilowatt in 2024. At the medium-voltage level, the indicator remained stable until 2023 and then jumped by nearly 50 percent in 2024. The authors interpret these trends as consistent with the hypothesis that readily available grid capacity is gradually being depleted as more projects connect, but they are careful not to claim causation: the dataset contains no time-resolved measure of hosting capacity at each location, so the increases could equally reflect changes in project mix, project size, or locational selection. The temporal patterns are therefore reported as descriptive observations, with capacity depletion treated as a plausible hypothesis rather than a demonstrated driver.
To turn these observations into a decision tool, the researchers built a screening metric around the levelized cost of electricity. The method compares the levelized cost of a proposed solar project with a reference benchmark price representing the cost of marginal dispatchable generation, and converts the resulting margin into a maximum admissible reinforcement cost in euros per kilowatt. In the reference case, which assumes a benchmark of 150 euros per megawatt-hour, a 20-year project lifetime, 1,000 full-load hours per year, a 6 percent discount rate, and solar investment costs of 800 euros per kilowatt at medium voltage and 1,600 euros per kilowatt at low voltage, the calculated thresholds come out at approximately 920 euros per kilowatt for medium-voltage connections and only 120 euros per kilowatt for low-voltage ones. The authors emphasize that these are scenario-specific screening points, not fixed capacity limits, and that the benchmark value of 150 euros per megawatt-hour is not a forecast of future prices.
Sensitivity analysis shows how fragile the low-voltage threshold is. Varying the benchmark between 100 and 200 euros per megawatt-hour, full-load hours between 900 and 1,100, project lifetime between 20 and 30 years, the discount rate between 4 and 8 percent, and solar capital costs by plus or minus 25 percent, the medium-voltage threshold remained positive under every variation, ranging from 347 to 1,494 euros per kilowatt. The low-voltage threshold, by contrast, fell to zero under adverse assumptions and reached only about 694 euros per kilowatt in the most favorable case tested. Under the reference and adverse assumptions, low-voltage reinforcement therefore has substantially less economic headroom than medium-voltage reinforcement, although the classification of any individual request remains scenario- and installation-specific.
A supplementary request-level extract of 150,713 low-voltage applications confirms that the screening metric operates at the level of individual requests, not just in aggregate. In that extract, 4,607 applications, or 3.1 percent, carried non-zero project-specific reinforcement costs, while 146,106 applications, or 96.9 percent, had zero marginal reinforcement cost. Among the reinforcement-linked cases, the cost distribution is strongly right-skewed: the median is about 1,904 euros per kilowatt, while the mean is about 5,458 euros per kilowatt, indicating that a small upper tail of very expensive cases pulls the average upward. At the reference threshold of 120 euros per kilowatt, which lies between the 10th percentile of 82 euros and the 25th percentile of 375 euros among reinforcement-linked applications, roughly 75 to 90 percent of those applications would be flagged for further assessment, corresponding to about 2.3 to 2.8 percent of all applications in the extract.
The study also examines who pays. Direct applicant contributions covered just 2.4 percent of recorded low-voltage project-specific reinforcement expenditure in 2022, 2.1 percent in 2023, and 2.0 percent in 2024, with the remaining roughly 97.9 percent entering the general regulated cost-recovery framework. The authors caution that this should not be read as a net subsidy of the same magnitude from non-solar to solar customers, because solar owners continue to contribute through fixed capacity-related charges, and quantifying a lifetime net transfer would require customer-level data the study does not have. A supplementary locational analysis adds a distributional dimension: villages accounted for 58.8 percent of reinforcement-linked low-voltage capacity and 61.8 percent of reinforcement capital expenditure, compared with 51.3 percent of capacity connected without reinforcement, and about 7.6 percent of requested village capacity was linked to reinforcement, versus 5.5 percent in small towns and 6.6 percent in larger towns. The authors describe this as a measurable but limited rural exposure that would make an unqualified rejection rule harder to defend, and they tie any screening mechanism to the principle of non-discriminatory network access under EU Directive 2019/944.
The framework comes with explicit limits. It evaluates only conventional reinforcement capital expenditure and does not quantify non-wire alternatives such as curtailment, flexible connection agreements, demand-side flexibility, or local storage. The capacity-proportional allocation of shared reinforcement costs is an accounting approximation that may over- or under-allocate costs between requests tied to the same project. The results come from a single distribution operator under one national regulatory regime, so external validation by other network companies is needed before generalizing. Under current Czech and EU law, economic inefficiency is not an independent ground for rejecting a technically admissible connection, so the proposed screening is presented as evidence for a possible future legislative or regulatory change rather than a power DSOs hold today. The authors also highlight the option value of reinforcement: a single measure often creates additional hosting capacity for later applicants, illustrated by a stylized case in which reinforcing a 500-meter low-voltage line for a 10-kilowatt request could enable roughly 20 to 40 kilowatts of additional generation capacity and about 60 kilowatts for consumption, an illustrative ratio of about 1:4 that depends on local network conditions and should not be treated as universal. Their recommendation is that a high cost figure should first trigger assessment of deferral, zero-export or limited-export connection, staged connection, or planned reinforcement, with rejection only as a last resort, and that any such mechanism be established through legislation and regulator-approved, publicly available rules.
Subject of Research: Cost-efficiency screening of solar power grid connection requests in Czech distribution networks
Article Title: Cost-efficiency screening of renewable energy connections in distribution networks: Evidence from a Czech DSO
Article References: Králík, T., & Berka, J. (2026). Cost-efficiency screening of renewable energy connections in distribution networks: Evidence from a Czech DSO. Energy Reports, 16, Article 109798. https://doi.org/10.1016/j.egyr.2026.109798
Image Credits: AI Generated
DOI: 10.1016/j.egyr.2026.109798
Keywords: solar power, distribution networks, grid reinforcement, connection costs, photovoltaics, Czech Republic, levelized cost of electricity, DSO, low voltage, medium voltage, energy transition, cost allocation
News Source: Denise Maddox. (November 5, 2026). Czech grid data reveal a small share of solar connections drives most reinforcement costs. Scienmag.
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Silfab provides SC officials with 72-hour notice on resuming solar cell production  Queen City News
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ARRAY Technologies and Shoals Technologies Group have entered into a definitive agreement to combine in an all-stock transaction valued at approximately $1.32 billion, bringing together utility-scale structural tracking and racking hardware with electrical balance-of-system solutions.
The transaction unites ARRAY’s single-axis trackers and fixed-tilt mounting systems with Shoals’ electrical power delivery, wire management, and combiner box hardware. While structural foundation systems and electrical infrastructure must integrate seamlessly on utility-scale solar and battery storage projects, the two product categories have traditionally been designed, specified, and procured through separate supply chains.
By consolidating both technology suites under one roof, the combined company plans to deliver pre-integrated equipment packages, streamlined purchasing, and single-source warranty support across foundation, racking, and electrical systems. The company stated that the unified engineering approach is designed to eliminate site-level integration friction, cut field installation labor, and improve system reliability over the operational life of utility-scale assets.
The combined platform projects full-year 2027 pro forma revenue between $2.2 billion and $2.4 billion, with Adjusted EBITDA estimated at $410 million to $480 million. The companies also expect to capture more than $100 million in annual run-rate EBITDA cost synergies within three years.
Beyond traditional solar and storage projects, the combined entity aims to leverage its technical portfolio to expand into high-growth power infrastructure segments, including long-duration energy storage and data center power delivery systems.
Brandon Moss, current chief executive officer of Shoals, will lead the combined company as CEO. Kevin Hostetler, chief executive officer of ARRAY, will transition to a role as special advisor. Brad Forth, who currently serves as chairman of the board for both companies, will serve as chairman of the combined 10-member board.
Under the terms of the merger agreement, ARRAY will act as the legal acquirer, and the combined business plans to launch a new corporate brand name and stock ticker symbol prior to closing. The deal has been approved by the voting members of both corporate boards and is expected to close in the first quarter of 2027, subject to shareholder and regulatory approvals.
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By ANI | Updated: November 7, 2026 09:10 IST2026-11-07T14:31:48+5:302026-11-07T09:10:11+5:30
India is set to achieve a massive 530 gigawatts (GW) of renewable energy capacity by 2030, with solar power driving over 80% of this ambitious growth. This places India as the world's second-largest market for renewable energy expansion, according to a recent report by the International Energy Agency (IEA).
The IEA's 'India Renewable Energy Market Report 2026' highlights that the nation's renewable capacity has already surpassed 300 GW by late 2026, a nearly four-fold increase in just a decade. By 2030, solar photovoltaic (PV) capacity is projected to exceed 350 GW, while wind power aims for nearly 90 GW, and hydropower for 75 GW, boosted by new projects and pumped storage investments.
This rapid expansion means India is well on track to meet its goal of 500 GW non-fossil fuel-based capacity by 2030. In fact, the country hit its 50% non-fossil electricity capacity target five years ahead of schedule, in 2025.
Annual renewable capacity additions are expected to stay above 50 GW through 2030, potentially reaching 70 GW under an accelerated scenario. This will nearly double renewable electricity generation from 500 terawatt-hours (TWh) in 2025 to about 950 TWh by 2030, increasing renewables' share in total electricity generation from 25% to 35%.
Solar PV will be key, projected to account for over half of renewable electricity generation by 2030. While competitive auctions, supportive policies, and falling technology costs are driving this boom, challenges like transmission expansion, land acquisition, and financial health of distribution companies need urgent attention to sustain this green momentum.
Disclaimer: This story is sourced from a syndicated agency feed and has been refined using artificial intelligence to improve readability. Please note that this article was published automatically and has not undergone a human editorial review.
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ARRAY Technologies and Shoals Merge in All-Stock Deal to Create Solar Infrastructure Platform  energynews.pro
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Saatvik Solar Industries Private Limited, an India-based solar PV module manufacturer, has started the commercial production of solar PV modules at its Gopalpur facility in Odisha. The facility stands on National Highway-16 at Chamakhandi, within the Gopalpur Industrial Park in the district of Ganjam. Saatvik Green Energy Limited, the listed parent company that wholly owns Saatvik Solar Industries, informed the stock exchanges that production had begun on November 2, 2026. The Gopalpur facility is one of the objects of the IPO of Saatvik Green Energy. Its IPO prospectus of September 23, 2025, had set out a proposed 4 GW module manufacturing facility. Production has started under Phase I of that facility, and that phase has a production capacity of approximately 1.3 GW of solar PV modules.
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Recurrent Energy Brings 20 MWp Court Barton Solar Farm into Commercial Operation  energynews.pro
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TotalEnergies and Axéréal Develop an 18.5-Hectare Agrivoltaic Pilot in the Cher Department  energynews.pro
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