by Leon Mendonca | May 9, 2026 3:00 pm Synopsis: Emmvee Photovoltaic Power Limited delivered a breakout FY26 with 116% revenue growth, a 9.4 GW order book, and expanding cell utilisation, but its biggest strategic move may lie ahead. With a planned 9 GW ingot and wafer expansion, Emmvee is positioning itself to move beyond modules and build deeper control across the solar value chain. As India’s solar manufacturing ecosystem moves toward deeper localisation, Emmvee Photovoltaic Power Limited is preparing for a much larger role than module production alone. After scaling module capacity to 10.3 GW, strengthening its balance sheet, and launching a 6 GW integrated expansion, the company has now outlined plans for a 9 GW ingot and wafer facility from FY29. Backed by TOPCon technology, alternative supply chains, and a growing order book, Emmvee appears to be building an increasingly integrated solar manufacturing platform. With a market cap of Rs 18,624 crore, the shares of Emmvee Photovoltaic Power Ltd are trading at Rs 269 and are trading at a PE of 17 compared to their industry’s PE of 31. The shares have given a return of more than 15% since their listing in November 2025 . However, for FY26, more importantly, this was a year when Emmvee completed its shift to being a public limited entity, improved its financial stability, expanded its manufacturing capacity, and established itself on the foundation of an even more integrated manufacturing setup. To put the facts out in the most basic terms, in FY26, Emmvee recorded revenues of ₹5,049 crore, EBITDA of ₹1,734 crore, and PAT of ₹1,082 crore. Another significant aspect worth mentioning here is the order book of 9.4 gigawatts at the end of FY26 compared to the previous year’s figure of 4.9 gigawatts. What stands out about all these figures is the fact that the company achieved this feat because it operates on a more integrated model that gives it better control over various factors like manufacturing, delivery, and other aspects. While modules themselves have become increasingly commoditised, it can be seen that there is scope for gaining a competitive advantage by moving towards an integrated manufacturing model. Financial Performance, FY26 demonstrated the speed at which the operations model of Emmvee was scaling. Year-over-year, revenue from operations was up by 116%, and EBITDA increased by 140% compared to the previous fiscal year. The margin in EBITDA margins moved from 31% to 34%, and PAT margins increased from 16% to 21%. This was mainly due to high production levels, better usage of their cell manufacturing plants, operating leverage, and low finance cost intensity after balance sheet deleverage. Return metrics continued to be outstanding for the firm, with ROCE of 38% and ROE at 51%. After its IPO in November 2025, Emmvee raised ₹2,900 crore, with ₹2,144 crore from the fresh issue, out of which ₹1,621 crore was deployed to prepay term loans. Consequently, net debt/equity was reduced to negative 0.06x, and the current ratio improved to 2.1x. Thus, Emmvee is moving into the next growth phase on financially strong footing. In terms of operational performance, FY26 was no less revolutionary. Emmvee’s installed capacity of solar modules reached 10.3 gigawatts by the end of FY26, after it had launched two new 2.5-gigawatt module lines in Sulibele, Bengaluru – one in May 2025 and another one in December 2025. Solar cell installed capacity was reported to be 2.94 gigawatts, and FY26 also witnessed the completion of the company’s first year of cell-manufacturing operation. Module production grew to 2,999 megawatts against 1,482 megawatts of the previous year, thus growing by a factor of two. Cell production amounted to 1,520 megawatts against 534 megawatts of the previous year, which meant it was almost three times higher than last year’s figure. Capacity utilisation on cells grew from 43.3% to 69.9%, with the Q4 figure reaching as high as 79% and management confirming even 85% for March. As far as module utilisation is concerned, it stood at 43% – however, management mentioned that this number needs to be considered within the context of commissioning new lines. Although FY26 was a remarkable year, it seemed that the management had set FY27 as the year of execution. Construction work on Emmvee’s new 6-gigawatt integrated cell and module factory at Devanahalli, Bengaluru, has already started. The land acquisition process has been successfully undertaken, construction has commenced and the module line order has already been placed. The module line is estimated to commence operation before the end of calendar year 2026, whereas the cell line commissioning is expected at the end of FY27. Upon completion, this factory will bring up the total capacity of the modules to 16.3 gigawatts and cell capacity to 8.9 gigawatts. For this purpose, the Indian Renewable Energy Development Agency has sanctioned a term loan worth ₹3,306 crore at an interest rate of 7.95%. It seems that approximately 75% to 80% of this borrowing will be incurred by March 2027. This expansion is strategically crucial because it not only enhances Emmvee’s manufacturing depth but also aligns it with the localised manufacturing ecosystem of India’s solar sector. Policy-based localisation was another dominant theme in the conference call. The management stressed that ALMM List 1 provided the initial groundwork for localisation of module manufacturing in India, and ALMM List 2 for solar cells is expected to take localisation of cell procurement to new heights. More significantly, ALMM List 3 is expected for wafers and ingots from 2028 onwards, which is expected to gradually increase involvement in wafer production by Indian manufacturers. Management emphasised that such a move towards localisation and vertical integration is fully consistent with the strategy of backward integration pursued by Emmvee. The management explained that the future of solar manufacturing would not be limited to companies producing modules but would involve firms that could gain greater visibility in the value chain, achieve better traceability, lower reliance on outside procurement chains, and have more control over technology and quality. There are many parallels in this regard to the way in which semiconductor firms achieved strategic resilience by taking control over their wafer production. The most significant strategic development of the call occurred during the Q&A section. According to management, Emmvee intends to establish an ingot and wafer production plant having a capacity of approximately 9 gigawatts. This plan will occur in two phases, where Phase 1 involves production worth 5 gigawatts, followed by Phase 2, involving the establishment of another plant having a capacity of 4 gigawatts one year later. The first phase is likely to happen in FY29. Management was quick to note that this move isn’t a response to any policy change; rather, they always intended “to very clearly fully integrate backwards”. The estimated cost involved in setting up such plants is roughly between ₹600 crores and ₹700 crores per gigawatt. This suggests that Emmvee could invest more than ₹5,000 crores. However, what is more crucial about this move is that Emmvee would no longer be adding capacity. Instead, it would seek to gain control of the critical elements used in solar manufacturing. Management made it clear that supply chains around the world are getting redesigned in such a way that reliance on outside supplies now becomes a strategic vulnerability. As was noted above, Emmvee has stated several times that it has alternative supply chains for all critical raw materials, including solar glass, junction boxes, and wafers, and has already started diversifying its sources of supplies in many cases. Management further indicated that Emmvee still enjoys low costs across the globe compared to Chinese competition, which makes it capable of providing services internationally when the opportunity arises. While no money from exports came in during FY26, management viewed export activities as an “upside”, not a key activity. By developing an integrated approach to cell and module production together with alternative sourcing of raw materials outside of China, Emmvee seems to develop a vertically integrated ecosystem similar to those of semiconductors. From what management has to say about the company, the answer seems to be yes. Emmvee currently has 10.3 gigawatts of module capacity and 2.94 gigawatts of cell capacity and is working on an integrated 6-gigawatt expansion that will increase module capacity to 16.3 gigawatts and cell capacity to 8.9 gigawatts by FY27. Furthermore, the 9 gigawatt ingot and wafer expansion that Emmvee plans to start from FY29 looks like a very important strategic step to establish itself in the most important part of the solar manufacturing value chain. Taking into account Emmvee’s 9.4 gigawatt order book, impressive 34% EBITDA margin, lack of net debt, TOPCon technology leader status, and alternative supply chains outside of China, it looks like Emmvee is not only trying to become a manufacturer of solar cells but also a fully fledged solar manufacturing ecosystem. Indeed, it is in semiconductors that the companies controlling wafers, process technology, and supply chains created the widest moats. Disclaimer: The views and investment tips expressed by investment experts/broking houses/rating agencies on tradebrains.in are their own, and not that of the website or its management. Investing in equities poses a risk of financial losses. Investors must therefore exercise due caution while investing or trading in stocks. Trade Brains Technologies Private Limited or the author are not liable for any losses caused as a result of the decision based on this article. Please consult your investment advisor before investing.
Leon is a Financial Analyst at Trade Brains with experience of writing 500+ finance and stock market-related articles, supported by an MBA in Finance and Marketing. He brings a strong understanding of financial analysis, along with insights into the securities market. Experienced in analysing financials and business data, supporting research-driven decision-making, and presenting insights in a clear and structured manner Trade Brains is India’s trusted financial and business news portal. Phone: 080884 91790 Email: [email protected] Reach us out at For Advertisement, Press Releases, Partnerships or to get backlinks on this website, please e-mail us at [email protected] For Partnerships & Promotio Visit – tradebrainsawards.com/ Chandan Singh Rawat Emaill: [email protected] Mob: (+91)6366648573 Bikram Singhary Email: [email protected] Mob: (+91)8088491790
Named as UK partner, Shenzhen manufacturer hopes to replicate success in Europe EcoFlow exhibited its products over April 29 and 30 at the Solar and Storage Live expo in London. (Carla Messinger) LONDON — Chinese solar panel maker EcoFlow is expecting to sell its plug-in products in British supermarkets within months, hoping to raise brand awareness as it aims to reach commercial clients, the company's European head said.
The Australian Energy Market Operator (AEMO) has reported a record-breaking surge in new renewable energy generation and storage assets reaching full operation within the National Electricity Market (NEM). The AEMO’s latest Connections Scorecard notes that, from 12 months to June 2025, 29 projects totalling 4.4GW have achieved full output. Get Premium Subscription AEMO executive general manager system design Merryn York confirmed that the pipeline of new projects reaching full output in the NEM reached a record level in the 2024-25 financial year. “The investment pipeline in the NEM continues to build, which is critical as decades-old generation approaches retirement. Pleasingly, 29 projects totalling 4.4GW of capacity reached full output this year, double last year’s total,” York said. In the third quarter, spanning April to June, 10 projects reached full output. This includes 613MW of solar PV, two grid-forming battery energy storage systems (BESS) totalling 385MW, and a 100MW grid-following BESS. These include the Wollar (280MW), Stubbo 2 (198MW), Wunghnu (75MW), Mannum 2 (30MW), and Kerang (30MW) solar PV power plants, as well as the Greenbank (200MW/400MWh), Koorangie (185MW/370MWh), and Latrobe Valley (100MW/200MWh) BESS sites. Despite the positives, integrating these assets into the NEM remains a complex and time-consuming process, which could damage future investment prospects in Australia. According to the advocacy and engagement platform Clean Energy Investor Group’s (CEIG) latest 2025 Clean Energy Outlook, inconsistent planning requirements and delays were noted as major barriers to investment in renewables. Additionally, projects being developed in Queensland could be stalled due to a new “strict” planning rule enshrined into law last week. This makes social licence requirements for solar PV power plants consistent with development assessment rules across Queensland. At the end of June, 260 projects, totalling 53GW, were in the connections process within the NEM, marking a 39% increase in capacity compared to the same time last year. Of this, 7GW has already been built and commissioned for full output. 18 projects, totalling 6.5GW, have seen their applications approved in the third quarter. This includes 10 battery storage systems, totalling 2.4GW, one hydropower plant (2.4GW), four solar-plus-storage sites (1.7GW), two solar PV power plants (322MW), and one gas project (66MW). AEMO confirmed that applications were approved in 9.4 months on average. Our publisher, Solar Media, will host the Battery Asset Management Summit Australia 2025 on 26-27 August in Sydney.You can get 20% off your ticket using the code ESN20 at checkout.
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Cuba took a new step in its energy transition strategy with the full operation of the “Mayor General Ángel del Castillo Agramonte” Photovoltaic Solar Park, located in the municipality of Majagua. The facility contributes 5 megawatts to the National Electric System and represents an unprecedented innovation for the country. The project stands out for incorporating, for the first time on the island, a storage system using batteries. This technology allows preserving part of the generated energy and using it during high demand periods or in case of power supply interruptions. Additionally, the project is part of a cooperation program promoted together with China, which includes a total donation of 120 megawatts aimed at strengthening renewable energies in Cuban territory. The main technological novelty of the Majagua solar park is its energy storage capacity. The system features state-of-the-art batteries capable of supporting an additional megawatt to stabilize the national electrical grid. Thanks to this tool, the plant can regulate voltage and frequency variations, one of the main challenges of intermittent renewable energies like solar. In this way, a more constant and secure electricity injection is guaranteed. Moreover, the system provides partial autonomy to the area in the face of general supply failures. In a context marked by power outages and structural difficulties, energy storage emerges as a strategic solution to reduce the vulnerability of the infrastructure. On the other hand, Cuban specialists and Chinese technicians worked together on the construction and commissioning of the project. The cooperation allowed for the incorporation of technological knowledge that could be replicated in future energy developments on the island. In recent years, Cuba has intensified its efforts to diversify its energy matrix and reduce dependence on imported fossil fuels. The expansion of solar parks has become one of the main bets to face the energy crisis. Currently, the country is promoting various photovoltaic projects in provinces such as Ciego de Ávila, Holguín, Camagüey, and Las Tunas. These initiatives aim to take advantage of the island’s favorable climatic conditions, where solar radiation is abundant for much of the year. Furthermore, the incorporation of renewable energies appears as a key tool to reduce generation costs and decrease pollutant emissions. Solar energy also helps alleviate the pressure on an aging electrical grid that faces recurring maintenance problems. In parallel, the technological development linked to energy storage is gaining relevance. Batteries are beginning to be considered fundamental to ensure stability in electrical systems that increasingly depend on renewable sources. The commissioning of the Majagua solar park generates benefits that go beyond electricity production. Firstly, it contributes to reducing fossil fuel consumption and the emissions of greenhouse gases associated with conventional generation. Additionally, the use of solar energy decreases atmospheric pollution and improves the sustainability of the national energy system. The incorporation of batteries, in turn, promotes a more efficient management of the produced electricity. On the other hand, the project strengthens the energy security of local communities. The possibility of having electrical backup during general outages is especially important in regions affected by infrastructure problems. Thus, Cuba is slowly advancing towards a more resilient energy model, where clean energies begin to occupy a central place in the face of the economic, environmental, and social challenges of the present. Compartí esta nota
Fraunhofer Institute for Solar Energy Systems ISE has inaugurated a new laboratory aimed at accelerating the market introduction of silicon-perovskite tandem photovoltaic technology. The new facility, called “Pero-Si-SCALE”, will provide an independent research and development infrastructure for the German and European photovoltaic industry, enabling solar cell and module manufacturers to scale new tandem cell designs to industrial-sized formats using standard manufacturing processes. According to Fraunhofer ISE, applying a perovskite cell only 500 nanometres thick onto a conventional silicon solar cell increases the theoretical efficiency limit from 29.4% to 43.3%. The institute said the new laboratory is designed to bridge the gap between laboratory-scale research and industrial implementation of tandem solar technologies. Pero-Si-SCALE builds on developments achieved at Technology Readiness Levels (TRL) 1 to 4 and transfers innovative cell concepts to industrial wafer formats of up to 210 x 210 millimetres through scalable, high-throughput manufacturing processes. In addition to supporting the development of silicon-perovskite solar cells and modules, the laboratory also provides a comprehensive environment for characterisation and analysis. Stefan Glunz, Director of the Photovoltaics Division at Fraunhofer ISE, said during the inauguration that photovoltaics is “far from being fully researched”. “On the contrary, there is still much to discover, and tandem solar cells are key to achieving higher efficiencies,” Glunz said. “This means more solar power on a smaller surface area and with lower material consumption.” The institute said the new infrastructure builds on two decades of experience in industry-oriented silicon photovoltaic development at its Photovoltaic Technology Evaluation Center (PV-TEC). Ralf Preu, Head of the Photovoltaics Division at Fraunhofer ISE, said PV-TEC will also supply optimised silicon bottom cells for Pero-Si-SCALE and ensure close integration with existing industrial production processes. “The new laboratory infrastructure is based on 20 years of experience in the development of industry-oriented silicon photovoltaic systems at PV-TEC,” Preu said. Fraunhofer ISE said it is focusing on the so-called “hybrid route” for the production of silicon-perovskite tandem solar cells, combining wet chemical and vacuum-based manufacturing processes. Using this technology, the institute has already achieved laboratory-scale efficiencies above 33%. According to Fraunhofer ISE, one advantage of the process is that it enables the use of standard textured silicon solar cells already widely used by the industry, facilitating integration with current solar manufacturing standards and improving the energy yield of tandem modules. The institute noted that combining a broad range of thin-film deposition technologies with wafer-based silicon technology remains one of the key challenges for efficient industrial implementation. The inauguration of the Pero-Si-SCALE laboratory was attended by representatives from industry and research organisations, including Martin Hermle, Peter Fath, Chris Case, Andreas Bett, Stephanie von Ahlefeldt and Axel Müller-Groeling. Sé el primero en comentar…
We have a statutory two-tier board management structure. This structure separates the Supervisory Board from the Executive Board and the Management Board Banking. Each board has distinct responsibilities, ensuring a balance between oversight and execution. It’s the parent of one main legal entity, ING Bank. ING Bank is the parent company of various Dutch and foreign banks. In this section you will read how we adhere to laws, regulations, internal policies, and ethical standards relevant to its operations ensuring that we operate within legal and moral boundaries, safeguarding our integrity, reputation, and financial stability. It’s our purpose Our sustainability strategy spans climate, nature and social agendas. At ING, our climate ambition is to play a leading role in accelerating the low carbon transition. We’re stepping up action on climate because it matters to the bank, our customers and society. As a bank, the biggest impact we can make is through our financing. Through how we manage our business and work with our clients, we can make a positive contribution to society’s efforts to tackle climate change. Rising to this global challenge demands system-level solutions. We’re eager to work with others, build partnerships and advocate publicly for the change that’s needed. We monitor our progress and are committed to transparent disclosure. We are eager to share what we learn along the way while continuing to learn from others. We aim to put sustainability at the heart of what we do. This is the central hub for shareholders and investors to access key data about ING’s equity structure, performance, and distribution policies. Read about our financial results and strategic progress. Here’s a section with curated investor-facing materials that support transparency and strategic communication. Here’s detailed information for debt investors and financial analysts about ING’s bond issuances and funding instruments. Download the Comparative Quarters Note 1Q2026. Download the Comparative Quarters Note 1Q2026. Explore the latest news, press releases, and stories from ING – highlighting our strategy, performance, and impact. Also check out our financial performance in the investors section. 1 November 2017 The Australian state of Queensland, known as the “sunshine state”, has set high ambitions regarding renewable energy. Some say it’s well underway to going from a “sunshine” state to a “solar” state. ING is pleased to take part in this transition. How? As a participant to the banking syndication that is project financing the 100 MW Clare Solar Farm in North Queensland, one of Australia’s largest solar energy farms to date. When completed later this year, it will generate enough electricity to power around 42,000 homes. The farm will help meet the Queensland government’s target of 50% renewable energy by 2030. It will also boost the local economy, creating up to 200 jobs during construction. Why is ING involved in this project? Charles Ho, Head of Wholesale Banking Australia, explains. “The energy sector is central to a sustainable future. ING has extensive experience supporting diverse renewable energy projects around the world, including solar, wind, geothermal and hydro. This transaction stresses our global experience in renewables and also marks our expansion in the Australian market.” While this is our first solar project in Australia, we already lend to flagship wind farms there, including MacArthur (400MW wind farm), one of the largest operating wind farms in the southern hemisphere, and Bald Hills (106MW wind farm). Our dedicated Utilities, Power & Renewable team has been present in Australia since 2013. The Clare Solar Farm doesn’t produce greenhouse gas emissions when generating electricity and uses less water. It helps meet the region’s energy needs and contributes to the development of the Australian clean energy industry. Other participants in the project include Lighthouse Infrastructure, an increasingly active fund in the infrastructure and renewables sectors in Australia; DIF, a specialist infrastructure fund and one of ING’s key global clients, based in the Netherlands; and Fotowatio Renewable Ventures (FRV), a leading global utility scale solar PV. The Clare Solar Farm project utilises photovoltaic (PV) modules similar to those used on rooftops. It has a tracking system, where the panels move to track the sun, optimising electricity generation. It’s one of the largest solar farms with a tracking system in Australia and the Asia Pacific region. The project is also significant because it is the first large-scale solar project in Australia to obtain funding without government subsidy through a “power purchase agreement” with Australian energy company Origin Energy. While 84% of Australia’s electricity output comes from burning coal and gas, there is growing demand for clean energy. The government has set an renewable energy target to increase the amount of electricity generated from ecologically sustainable renewable sources. The target is to generate 33,000 GWh of electricity from renewable sources by 2020. The falling cost of developing solar energy is also building investors’ confidence. Accreditation of new large-scale renewable energy power stations is accelerating, with solar joining wind in the mix. Contact ING at a glance ING in your area Subscribe to press releases Economic and financial analysis – ING Think ING Wholesale Banking LinkedIn YouTube ING on social media
The encouraging news about climate mitigation is taken from the first four months of this year. In January, Ember, an energy think tank, published its electricity capacity estimates: wind and solar generated more electricity in the EU than fossil fuels in 2025. Wind and solar generated a record 30% of EU power, ahead of fossil fuels at 29%. “This milestone moment shows just how rapidly the EU is moving towards a power system backed by wind and solar,” said report author Dr Beatrice Petrovich. “As fossil fuel dependencies feed instability on the global stage, the stakes of transitioning to clean energy are clearer than ever”1. As of March 2026, the REPowerEU has significantly reduced Russian fossil fuel dependency, cutting Russian gas imports from 45% (2021) to 12% by 2025. The EU enacted binding regulations on February 3, 2026, aimed at a permanent phase-out of Russian LNG by 2026 and pipeline gas by 2027. The EU strategy now focuses on massive renewable deployment (406 GW solar and wind expansion) and securing energy independence through mandatory, accelerated, and diversified supply2. Also in March, Germany approved the Climate Change Act, which aims to reduce greenhouse gas emissions by at least 65% from 1990 levels by 2030 and to be climate-neutral by 2045. The plan approved by Chancellor Friedrich Merz’s cabinet includes a 12-gigawatt expansion of onshore wind turbine capacity, schemes to boost electric vehicle (EV) sales, and steps to help forests and soil. Results will be savings of more than 25 million metric tonnes of CO₂ by the end of the decade, according to the Environment Ministry, with reductions of nearly seven billion cubic metres in natural gas and four billion litres of petrol use by 20303. The UK Energy Secretary Ed Miliband announced that his country will bring forward the large AR8 renewable energy auction round to July 2026. Miliband stressed that there was “no energy security while we are so dependent on fossil fuels”. As many as 18 offshore wind farms could potentially compete in AR8, alongside new onshore wind and solar sites. This comes after the last offshore allocation round (AR7), the largest offshore auction to date, awarded enough power to power the equivalent of 23 million homes4. In the US, clean energy additions for electricity production will break records in 2026. According to the U.S. Energy Information Administration’s latest Preliminary Monthly Electric Generator Inventory, a total of 86 gigawatts of new utility capacity is expected to come online this year, which would surpass the previous single-year record of 53 gigawatts added in 2025. As shown below, 93% of that capacity will come from solar, storage, and wind power5. Planned Electric Generating Capacity in 2026 in the US. Solar and wind power are likely to grow worldwide at a pace compatible with limiting global warming to 2°C – but not 1.5°C, according to an analysis with a new AI-powered model6. This is a new modelling approach that helps predict the outcomes of ongoing policies. The study supports a more realistic goal of 2 °C warming, even though this entails sustained acceleration across all major regions, comparable to what the European Union is aiming for with its RePowerEU plan. The spread of renewable energy applications and energy efficiency is because, in many cases, they are simply the most cost-effective solutions. Heat pumps cost less than traditional boilers and can provide cooling. Wind and solar are often cheaper than fossil fuels for electricity generation. Electric vehicles produce little CO2 and are becoming competitive with conventional cars. Energy efficiency pays off, and the benefits are almost double what was previously estimated. Renewable energy has overtaken coal to become the world’s largest source of electricity in 2025, according to think tank Ember. The growth of solar and wind meant that, for the first time, the share of coal power was lower than that of renewables. Fossil-fuel generation fell by 0.2% in 2025, with wind and solar alone meeting 99% of the growth in electricity demand last year7. The IEA issued its second edition of the State of Energy Innovation, highlighting that energy innovations can have outsize economic and social outcomes, impacting industrial competitiveness, trade, environmental health, infrastructure investment, and security. “Today, the global markets for energy technologies such as batteries, transformers, turbines, motors, and heat exchangers are worth trillions of dollars. With spending on energy representing as much as 10% of global GDP, innovation that reduces energy supply costs can transform a country’s comparative advantage.” Ten percent of all patents are related to energy, more than to pharmaceuticals or chemicals. “Public spending in energy R&D is essential, with cost-benefit evaluations typically showing that the economic benefits are far greater – even a hundredfold larger – than their costs.” Government spending on energy R&D over the last decade is shown below, also highlighting the growing role of China8. Investments in renewables and energy efficiency help reduce pollution. Globally, at least 4.2 million people die prematurely each year from fossil fuel pollution. WHO estimates that some 68% of outdoor air pollution-related premature deaths were due to ischaemic heart disease and stroke, 14% were due to chronic obstructive pulmonary disease, 14% were due to acute lower respiratory infections, and 4% of deaths were due to lung cancers. People living in low- and middle-income countries disproportionately experience the burden of outdoor air pollution, with 89% of the total deaths9. In the US, it is estimated that 91,000 people die prematurely due to this pollution. In Italy, the estimate is 52,000 premature deaths annually. Green investments combat this unhealthy situation. In April 2026, Colombia and the Netherlands co-hosted a summit that brought together 57 countries committed to creating transition roadmaps to reduce economic reliance on fossil fuels. Countries attending this first-of-its-kind summit explored plans to develop national roadmaps away from fossil fuels, along with new tools to address harmful subsidies and carbon-intensive trade. The group will present its first report at COP 31 in November. On the eve of the last UN Climate Conference, Brazilian President Luiz Inácio Lula da Silva and United Nations Secretary-General António Guterres jointly launched this idea of an international roadmap for the phase-out of fossil fuels10. Thanks to climate activists, scientists, engineers, concerned citizens, and responsible political leaders, progress has been made on fighting global warming. Let us celebrate these achievements and build on them. 1 Petrovich, B, European Electricity Review 2026, 22 January 2026. 2European Commission, REPowerEU – 4 years on, 2026. 3 Reuters, Germany unveils climate plan to cut emissions and fossil fuels, March 25, 2026. 4 Strategic Energy, Germany and the UK ramp up wind power to tackle the energy crisis, March 27, 2026. 5 EnvironmentAmérica, Clean energy additions to break records in 2026, 2 March 2026. 6 Jakhmola, A., Jewell, J., Vinichenko, V. et al., Probabilistic projections of global wind and solar power growth based on historical national experience. 2026, Nature Energy (2026). 7 Lempriere, M., Clean energy pushes fossil-fuel power into reverse for ‘first time ever’, 21 April 2026. 8 International Energy Agency, The State of Energy Innovation 2026. 9 World Health Organization, Ambient (outdoor) air pollution, 24 October 2024. 10 Dunne, D., Santa Marta: Key outcomes from first summit on ‘transitioning away’ from fossil fuels, 30 April 2026, CarbonBrief.
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Australia’s surging solar adoption has driven battery energy storage systems (BESS) in the National Electricity Market (NEM) to more than triple their daytime-to-evening energy shifting in the first quarter of 2026, according to AEMO’s latest Quarterly Energy Dynamics report. Grid-scale solar output reached a new quarterly high of 2,706MW, up 13% from Q1 2025, while renewables supplied 46.5% of NEM generation during the quarter, the highest share on record for a first quarter. The increased solar penetration has forced New South Wales to revise its 2030 storage requirements upward from 40GWh to 56GWh. Get Premium Subscription “Two years ago, we needed 40GWh of storage operational by 2030. That has now increased to 56GWh solely due to solar penetration,” said Paul Peters, CEO of New South Wales’ Energy Security Corporation, speaking at the Energy Storage Summit Australia 2026 last month. “Of the 56GWh needed, 12.5GWh has hit the financial investment decision. 75% of what we need in 2030 is not there today.” Average battery discharge reached 359MW during the quarter, more than three times the 98MW recorded in the same period a year earlier. This growth was driven by 4,445MW of new large-scale battery storage systems, adding 11,219MWh to the grid since the end of Q1 2025, more than doubling total installed battery storage in the NEM. Daytime charging increased by 872MW, while evening peak discharge rose by 818MW, shifting energy from daylight hours into periods of higher demand. Battery storage delivered 1,115MW into the evening peak, with peak discharge reaching a record 3,556MW on 7 January during the half-hour ending 19:00, 23% higher than the previous record set in Q4 2025. Eight battery storage systems commenced commissioning in the NEM during Q1 2026, including the 415MW/1,660MWh Orana BESS in New South Wales, the 300MW/650MWh Mortlake BESS in Victoria and the 260MW/1,090MWh Supernode BESS unit 2 in Queensland. Battery storage set prices in 32% of trading intervals across the NEM during the quarter, displacing hydro as the most frequent price-setting technology. The increased battery capacity contributed to lower year-on-year wholesale prices in most regions, with the NEM average wholesale spot price averaging AU$73/MWh (US$51.97/MWh), down 12% from Q1 2025. Evening peak prices fell as battery discharge reduced reliance on gas and hydro generation, though this effect was moderated by an increase in daytime prices as battery charging set prices more frequently, reducing the frequency of negative prices in the northern regions. Estimated revenue for NEM grid-scale battery storage systems averaged AU$96.9 million, more than double the AU$44 million recorded in Q1 2025. Energy arbitrage revenue rose by AU$55.1 million to AU$93.9 million, accounting for 97% of total battery storage revenue, up from 88% a year earlier. Frequency control ancillary services (FCAS) revenue declined to AU$3 million, down 43% from the previous year, representing just 3% of total revenue. Peak renewable energy and storage contribution in the NEM reached 76.7% during the half-hour ending 11:30 on 7 January, 4.3% higher than the previous Q1 outcome. South Australia set a record for renewable energy generation and storage contribution, reaching 98.8% during the half-hour ending 15:00 on 31 January. In Western Australia’s Wholesale Electricity Market (WEM), battery discharge increased by 108MW, driven by the commissioning of 1,025MW/4,100MWh of new battery storage systems since the end of Q1 2025. The renewable energy share of generation increased to 46.1%, up from 40.8% in Q1 2025. To read the full article and further information on battery storage, please visit Energy-Storage.news.
This is read by an automated voice. Please report any issues or inconsistencies here. CHRISTIANA, Tenn. — From a distance, the small solar farm in central Tennessee looks like others that now dot rural America, with row upon row of black panels absorbing the sun’s rays, creating a flow of clean electricity. But beneath the panels is lush pasture, not gravel, enjoyed by a small herd of cattle that spends their days munching grass and resting in the shade. Silicon Ranch, which owns the 40-acre farm in Christiana, outside Nashville, believes cattle-grazing is the next frontier in so-called agrivoltaics, which mostly has involved growing crops or grazing sheep beneath the panels. The solar company debuted the project last week and will spend the next year working to demonstrate to farmers that much larger herds of cattle also can thrive at solar sites. If successful, advocates say, that could jump-start new projects to meet the soaring electricity demand driven by rapidly expanding data centers — without contributing climate-warming carbon emissions — and help cattle producers hold on to their land and livelihoods. “Solar is one of the most powerful tools we have for cutting emissions and … is cost-competitive with fossil fuels,” said Taylor Bacon, a doctoral student at Colorado State University who has studied ecological outcomes at solar grazing sites. “I think we’re starting to see enough research that, when you do it well, the land use can be more of an opportunity than a downside.” Though there are far more cattle than sheep in the U.S., their size poses challenges at solar sites, where both expensive equipment and the animals — which can weigh more than half a ton — must be protected. Solar panels equipped with tracking can pivot to near-vertical angles to capture the sun’s rays, leaving little room underneath for cattle. Simply raising the panels is cost-prohibitive because of the amount of steel required. So Silicon Ranch raised the panels a little but also developed software that workers activate to turn the panels close to horizontal when cattle are grazing, giving them room to wander, said Nick de Vries, the company’s chief technology officer. Workers rotate the cattle — currently 10 cows and their calves — between paddocks every few days so panels on the ungrazed portion of the site operate normally, generating a supply of roughly 5 megawatts of electricity for Middle Tennessee Electric, a rural electric co-op. The hope is that the technology eventually will be adopted more broadly, company officials said. “We know it works,” De Vries said. “But you need to prove it to other people.” For solar companies, agricultural land is generally easier to develop than other types of sites. But many farmers — and communities — will need to be convinced that solar grazing will benefit them because of past practices that destroyed topsoil and took land out of production permanently. “For many agricultural stakeholders, it is offensive to see high-quality farmland getting graded and piled when that’s a farm family’s legacy,” said Ethan Winter, national smart solar director at American Farmland Trust. But he sees potential for solar grazing partnerships to help farmers keep their land in production and earn extra income at a time when it’s increasingly difficult to earn money farming and ranching alone. “Agriculture is in a really tough spot right now” due to trade wars, climate extremes, increased costs and pressure to sell, Winter said. “So maybe this is our moment where we can be helping states meet their energy needs and do that in a way that’s providing new opportunities for farmers.” Silicon Ranch this year will have almost 15,000 acres of pasture being grazed — mostly by sheep — since launching five years ago, and is working with ranchers, farmers, university researchers and others to adopt best practices for keeping soils and animals healthy. What they’re finding is that pasture beneath solar panels retains more moisture, making it more drought tolerant, said Anna Clare Monlezun, a rancher and rangeland ecosystem scientist who’s working on the Tennessee project. Grazing in the shade also leaves animals less prone to heat stress, enabling them to gain more weight and drink less water. “There are more win-wins than trade-offs,” she said. Sheep already have proved to be a good fit for solar sites, with more than 130,000 acres grazed as of 2024, a number that certainly has grown, said Kevin Richardson, senior director of the American Solar Grazing Assn. But for cattle, the industry still has to overcome site-design challenges and be able to scale up operations while also developing appropriate economic incentives for ranchers, Richardson said. “Once we have that, I think we’ll see more solar sites using cattle or multi-species grazing with sheep and cattle,” he said. Farmers often earn about $1,000 an acre by leasing their land for solar, easily 10 times more than what they historically earned through traditional agriculture, said Winter, with the Farmland Trust. That can help them to diversify operations, pay down debt and buy more land. “I think you’ll start to hear more interest from farmers who are up against a serious financial wall right now and looking for income diversification opportunities that keep land in production,” Winter said. “We need and want to grow America’s energy capacity but not at the expense of our best farmland or at the expense of agricultural livelihoods.” Webber and Bickel write for the Associated Press. Climate & Environment California Climate & Environment There’s more than a dozen candidates currently on the ballot. Can Bass hold on to her seat? Or could councilmember Nithya Raman or reality star Spencer Pratt take it? Modern LA earned its first smoggy nickname 450 years ago, as the “bay of smokes.” At the La Brea tar pits, we take a short walk through a long history with curator Regan Dunn, who explains how and why the first Angelenos would have set fires that filled the broad bowl of LA and foretold the curse of smog. Subscribe for unlimited access Site Map Follow Us MORE FROM THE L.A. TIMES
Last month, state regulators passed an unusual order that put a pause on Duke Energy’s new solar energy development in North Carolina. The Southern Environmental Law Center filed a motion with the North Carolina Utility Commission to reconsider the order, calling it “arbitrary and capricious.” The order was unusual for a few reasons: only Utilities Commission Chair William Brawley issued it, and the commission didn’t hold a public hearing before making a decision. It also paused solar procurements that the commission greenlit during the last Carbon Plan, which the commission approved in 2024. The SELC argued that an expedited review of the order is in the public interest, as these solar “missing megawatts” risk the reliability and affordability of Duke Energy’s service.
Join us at the CalMatters Ideas Festival on May 21. 💡 Get your tickets now. Welcome to CalMatters, the only nonprofit newsroom devoted solely to covering statewide issues that affect all Californians. Sign up for WeeklyMatters for a Saturday morning digest of the latest news and commentary from the Golden State. This story is part of California Voices, a commentary forum aiming to broaden our understanding of the state and spotlight Californians directly impacted by policy or its absence. Learn more here. Guest Commentary written by Angela Lipanovich is an attorney at Estriatus Law and lives in Santa Cruz. Jenny Folkesson is the executive director of SolarWAVE Action. Re: “Californians’ electric bills would be much lower without state’s program fees“ A recent CalMatters guest commentary has California’s affordability story exactly backwards. Rooftop solar isn’t driving up utility bills — wildfire capital and guaranteed utility profits are the dominant drivers. The California Public Advocates Office attributes roughly 21% of rates to wildfire-related capital, the single largest driver of recent rate increases. The California Public Utilities Commission, the state’s utilities regulator, also guarantees the three investor-owned utilities returns on equity to almost 10%. Last year, CEO pay alone reached $19.8 million. Every ratepayer covers those costs. The rooftop solar “subsidy” is a rate-design, not a transfer of money. The Natural Resources Defense Council describes it as fixed-cost recovery by utilities on flat sales, not a payment from non-solar to solar customers. Research has shown that existing rooftop solar actually saved all ratepayers approximately $1.5 billion in 2024 alone by reducing peak load and deferring transmission build-out. The latest version of the state’s rooftop solar program has already slashed solar credits by 75%, yet wildfire spending has no such ceiling. Real affordability means reforming rate design and expanding solar ownership opportunities to more renters, low-income families and small businesses — not scapegoating customers who generate their own clean power. Read more from CalMatters Text Get breaking news on your phone. Download Keep up with the latest via our app. Sign up Receive free updates in your inbox. We’re CalMatters, your nonprofit and nonpartisan news guide. Our journalists are here to empower you and our mission continues to be essential. But we can’t keep doing this without support from readers like you. Please give what you can today. Every gift helps. We love that you want to share our stories with your readers. Hundreds of publications republish our work on a regular basis.
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Solar Power World By Kelly Pickerel | Colorado is the latest state to approve plug-in solar (also known as balcony solar) after Gov. Jared Polis signed HB26-1007 into law. Credit: UL The legislation led by Reps. Lesley Smith and Rebekah Stewart and Sens. Cathy Kipp and Matt Ball that will make it cheaper and easier for Colorado families, including renters and apartment dwellers, to power their homes with solar energy. The bill passed both chambers of the Colorado legislature with bipartisan support. The new law creates a pathway to allow for the use of plug-in solar devices, establishes critical safety standards for those products and eliminates unnecessary interconnection barriers by allowing families to use meter collar adapters. “Colorado is breaking down barriers to clean energy and saving people money on energy bills,” said Gov. Polis following the signing of the bill. “Just because you live in an apartment or multi-family building doesn’t mean you shouldn’t be able to use solar panels to save money on your energy bill, and this new law expands access and choice to money-saving clean energy solutions for more Coloradans. Thank you to the sponsors for expanding choices for more Coloradans to explore new technology that protects our environment and saves Coloradans money.” What HB-1007 Does: News item from Colorado Solar and Storage Association
Kelly Pickerel has more than 15 years of experience reporting on the U.S. solar industry and is currently editor in chief of Solar Power World. Email Kelly.
US President Donald Trump’s crusade against wind turbines continues, but his efforts to stop solar power have fallen flat. A case in point is the US manufacturer SEG Solar. Despite the sharp U-turn in federal energy policy, SEG has just announced the addition of a new 4-gigawatt solar module factory to its US portfolio. As for who’s going to put all those new solar modules to work, that’s a good question. In addition to orders from the White House aimed at throttling down the domestic solar industry, some states and local governments have established, or are considering, new restrictions on wind and/or solar development. However, there are ample opportunities in other states where renewable energy is supported. Blue states like California, Illinois, and New York come to mind, but the appeal is bipartisan, with Florida and Texas vying against California for the #1 slot in installed solar capacity in a state-by-state ranking. Texas is a particularly interesting case because capacity additions are just part of the state’s solar power picture. Solar manufacturers have also been rushing into Texas, despite the anti-renewables efforts undertaken by Republican lawmakers in the state. SEG surfaced on the CleanTechnica radar in 2024, when it announced the opening of a new $60 million, 2-gigawatt factory in Houston, earmarked for fabricating the company’s Yukon N-type solar modules. “With the opening of the Houston plant, customers will benefit from faster delivery times and enhanced after-sales service, while the convenient location will significantly reduce transportation costs, boosting SEG’s competitiveness and maintaining its industry-leading position,” the company explained. “SEG will continue to deepen its investments in wafers, cells, and modules, closely tracking market trends to meet our customers’ needs,” the company added, indicating a sunny future for solar power in the US. Things certainly did seem sunny just a year and five months ago, when former US President Joe Biden was still in office with robust support for both wind and solar. The environment abruptly shifted on January 20, 2025 when President Donald Trump swept back into office. Still, the sun will keep shining long after President Trump leaves office as scheduled on January 20, 2029 — peacefully one hopes, this time — and domestic solar manufacturers like SEG are planning for the long haul. In the latest news from SEG, on May 7 the company announced that it will construct a new 4-gigawatt factory in Houston. “Building on the success of its first 2 GW solar module factory, this expansion will increase SEG’s total annual U.S. module production capacity to approximately 6 GW,” SEG notes, adding that it expects the new solar module facility to be up and running sometime in Q3 of this year, which is just around the corner. “The domestically-produced modules will provide greater product quality, traceability and delivery speed to increase value for partners and customers,” SEG adds. If that thing about delivery speed indicates that SEG is in a hurry, it is. The domestic solar manufacturing sector lay all but dormant for decades, and now the competition is heating up rapidly, with Texas being one standout example. As of 2023 Texas had just one solar module factory to its name, with about a dozen others producing racks and other related hardware. The Solar Energy Industries Association now counts 137 solar manufacturers of various kinds in Texas, along with 240 other companies in the installer/developer category and an additional 296 companies in solar-related fields. SEG has already indicated that it does not intend to sit on its laurels. “This new facility marks an important milestone for SEG,” said the company’s VP of Operations, Timothy Johnson. “It will further strengthen our U.S. manufacturing capabilities while supporting ongoing technology innovation,” Johnson emphasized in a press statement. “The plant is designed with the flexibility to integrate next-generation technologies, including HJT, as the industry evolves,” Johnson added. SEG launched its new SIERRA N HJT module series at the RE+ 2025 exhibition in Las Vegas last September. “The modules deliver up to 740 W of maximum power output with a conversion efficiency of 23.82%, and feature an ultra-low temperature coefficient of -0.24%/°C.” SEG “These technological advancements ensure stable performance and higher energy yields even under high-temperature, low-light, or complex environmental conditions,” the company added. “With higher power density and improved system compatibility, the SIERRA N series reduces the number of modules required per project, effectively lowering BOS [balance of system] and LCOE costs while providing reliable and efficient solutions for utility-scale and C&I projects,” they added again for good measure, with LCOE referring to the levelized cost of energy, a standard for comparing different energy technologies. Aside from lowering costs, the power density improvement can also help alleviate land use issues, cutting down on the space needed to generate the same amount of electricity. Potential impacts include more opportunities for small-scale solar in tight quarters as well as agrivoltaic applications on farmland. Among other announcements at RE+ 2025, SEG also signed a cooperation agreement with the Indiana-based electrical supply and services firm Kirby Risk. “The partnership will leverage SEG’s advanced manufacturing and R&D capabilities at its Houston facility alongside Kirby Risk’s leading local distribution and service network to accelerate the growth of clean energy in the U.S.,” SEG explained, once again underscoring the speed factor. This year marks Kirby Risk’s 100th anniversary in business and the solar industry has provided it with a fresh burst of adrenaline. Keep an eye on forthcoming solar activity in Indiana, Illinois, Ohio and Georgia, where the company maintains more than three dozen locations. Another SEG-adjacent firm to keep an eye on is the Arizona-based solar construction firm Erthos, which inked a licensing agreement with SEG in 2023. The startup’s Earth Mount Solar platform is a low-rise, modular system that practically eliminates expensive racking hardware. The agreement provides for SEG to manufacture modules that fit seamlessly into the Earth Mount system. SEG is just one example of the nonstop innovation that will keep pushing the solar envelope in the US regardless of partisan politics, with futuristic robotic installation systems and space solar power among other emerging elements. One has to wonder why President Trump and his allies in the Republican party are wasting so much time and energy on a losing battle…then again, never mind. Photo: The Texas-based solar manufacturer SEG Solar is among the firms continuing to push the solar power envelope despite the sharp U-turn in federal energy policy (cropped, courtesy of SEG). CleanTechnica’s Comment Policy Tina has been covering advanced energy technology, military sustainability, emerging materials, biofuels, ESG and related policy and political matters for CleanTechnica since 2009. Follow her @tinamcasey on LinkedIn, Mastodon or Bluesky. Tina Casey has 4178 posts and counting. See all posts by Tina Casey
Abstract: Concentrating solar power plants, specifically central receiver type systems and their heliostat field, are struggling with negative reputation in the USA, due to perceived underperformance and reliability issues. This is in part due to a lack of standards for performance assessment as well as overly simplified techno-economical models. A better understanding of influences and losses along the solar radiation path from the sun, across the solar collector to the receiver, increases the fidelity of heliostat efficiency assessment as well as solar field performance predictions. Such data are currently scarce and require a complete set of metrology capabilities to evaluate direct solar irradiance, sun shape, atmospheric attenuation, reflectance, collector shape, slope errors and total beam dispersion. In preparation for establishing a 3rd party metrology platform in collaboration with Sandia National Labs, NLR conducted a scoping study on available metrology. We present an extensive overview of techniques and commercial systems for each category. Our work includes an analysis to increase understanding of strengths and limitations of the many techniques used for surface shape and slope measurement. This applies to a controlled, indoor or outdoor laboratory environment assessing a single heliostat. Stephanie Meyen, Yu Zhou, Rebecca Mitchell, Guangdong Zhu, Comprehensive assessment of metrology techniques for heliostat efficiency and performance evaluation, Solar Energy, Volume 312, 2026, 114572, ISSN 0038-092X, https://doi.org/10.1016 j.solener.2026.114572 Latest In:
0:01:00 North Carolina wasonce an emerging national leader on the solar power front. But disincentives, policy changes and a hold on new projects have changed the solar power landscape. A conversation about energy costs and possible solutions for the future. Liz McLaughlin, climate change reporter, WRAL Matt Abele, Executive Director, NC Sustainable Energy Association 0:33:00 Residential solar panels are becoming more common on rooftops in North Carolina. But they are still a big financial stretch for most people. Leoneda Inge talks with a couple who got panels installed several years ago about how they look back on their decision. And, the president of a local solar panel company joins the conversation to talk credits, incentives, and the nuts and bolts of home solar power systems. Dan and Saritha Vermeer, residential solar panel customers Karl Stupka, President and Chief Operations Officer, NC Solar Now
First Solar, Nextpower, SolarEdge Technologies, Sunrun, and Enphase Energy are the five Solar stocks to watch today, according to MarketBeat’s stock screener tool. Solar stocks are shares of publicly traded companies involved in the solar energy industry, such as manufacturers of solar panels, developers of solar farms, and providers of related equipment or services. For stock market investors, the term usually refers to companies whose profits and growth are tied to demand for solar power and broader trends in renewable energy. These companies had the highest dollar trading volume of any Solar stocks within the last several days.
First Solar (FSLR)
First Solar, Inc., a solar technology company, provides photovoltaic (PV) solar energy solutions in the United States, France, Japan, Chile, and internationally. The company manufactures and sells PV solar modules with a thin film semiconductor technology that provides a lower-carbon alternative to conventional crystalline silicon PV solar modules. Read Our Latest Research Report on FSLR
Nextpower (NXT)
Nextpower, formerly known as Nextracker, an energy solutions company, provides solar trackers and software solutions for utility-scale and distributed generation solar projects in the United States and internationally. The company offers tracking solutions, which includes NX Horizon, a solar tracking solution; and NX Horizon-XTR, a terrain-following tracker designed to expand the addressable market for trackers on sites with sloped, uneven, and challenging terrain. Read Our Latest Research Report on NXT
SolarEdge Technologies (SEDG)
SolarEdge Technologies, Inc., together with its subsidiaries, designs, develops, manufactures, and sells direct current (DC) optimized inverter systems for solar photovoltaic (PV) installations in the United States, Germany, the Netherlands, Italy, rest of Europe, and internationally. It operates in two segments, Solar and Energy Storage. Read Our Latest Research Report on SEDG
Sunrun (RUN)
Sunrun Inc. designs, develops, installs, sells, owns, and maintains residential solar energy systems in the United States. It also sells solar energy systems and products, such as panels and racking; and solar leads generated to customers. In addition, the company offers battery storage along with solar energy systems; and sells services to commercial developers through multi-family and new homes. Read Our Latest Research Report on RUN
Enphase Energy (ENPH)
Enphase Energy, Inc., together with its subsidiaries, designs, develops, manufactures, and sells home energy solutions for the solar photovoltaic industry in the United States and internationally. The company offers semiconductor-based microinverter, which converts energy at the individual solar module level and combines with its proprietary networking and software technologies to provide energy monitoring and control. Read Our Latest Research Report on ENPH
Notwithstanding the sharp U-turn in federal energy policy, the US Air Force continues to pursue the next generation of decarbonization solutions, and space solar is in the mix. Yes, space solar. That nutty idea about beaming solar energy down to Earth from space is not so nutty after all, and the Air Force is among those taking steps to move the needle from the lab into real world applications. US scientist and writer Isaac Asimov is credited with formulating space solar as a 24/7 energy solution all the way back in the 1940s. In theory, orbiting solar panels could collect solar energy regardless of the weather or time of day, and beam it down to Earth. Putting that theory to work has been a distant dream until recent years, though. Solar panels have been a fixture in space applications since the 1950s, but the beaming end of things has been among the hurdles faced by space-to-earth systems (see lots more space-to-earth background here). The cost of rocket launches has been another formidable challenge, but that has faded out as costs have dropped substantially in recent years. With that, the technology pieces are now in place and more than a few ambitious startups have thrown their hat into the ring. Cost still remains an obstacle to widespread commercial adoption, but the US startup Overview Energy has come up with a solution. Instead of building standalone receivers here on Earth, the company has designed a space solar system that can piggyback on existing solar power plants. Overview organized itself in 2022 and it surfaced on the CleanTechnica radar in December of 2025, when the company let word slip that it attracted $20 million from Engine Ventures and Lowercarbon Capital, among other investors. “The cash infusion is significant because it demonstrates, yet again, that private sector investors can still push the envelope on solar innovation here in the US, regardless of this year’s abrupt shift in federal energy policy,” CleanTechnica observed. “Launch costs have dropped more than tenfold, and annual launches have grown just as dramatically,” Overview noted in a press statement last December. “Mass manufacturing satellites is now routine. High-efficiency photovoltaics and high-power, high-efficiency lasers have become inexpensive, reliable, and commercially available.” Overview’s space solar solution eliminates the time, cost, and siting limitations of standalone receivers, by taking advantage of existing solar facilities. The system is designed to function as a sort of roaming peaker plant, but without the gas turbines. “Overview’s satellites will operate at an altitude of approximately 36,000 kilometers (about 22,000 miles) in geosynchronous orbit, collecting sunlight continuously and transmitting it as low-intensity, invisible infrared light,” Overview explains. The system deploys the same wavelength as night vision security cameras, commonly used in homes. “The beam is never more intense than the sun, never visible, and never harmful — passively safe for people, wildlife, aircraft, and other spacecraft,” the company emphasizes. The Air Force emerged as an early adopter of solar technology during the Obama administration, as military planners recognized the value of utility scale on-site solar arrays to improve energy security and resiliency at its facilities. The agency has also adopted small-scale solar applications and transportable solar systems, and the Air Force Research Laboratory has been front and center in cutting edge solar R&D, so it’s no surprise to see an interest in space solar float across the radar. On May 6, Overview announced the award of its first Air Force contract. Issued through the Secretary of the Air Force for Installations, Energy, and Environment, the contract tasks Overview with demonstrating how its technology can support Defense Department operations. “The work will focus on energy applications in constrained and contested logistics environments, including how this approach can help power large U.S. military installations in remote locations and reduce reliance on fuel supply chains,” Overview explains. “The effort will investigate applications across a range of environments, from remote bases like Eielson Air Force Base in Alaska to strategically important locations such as Anderson Air Force Base in Guam, where fuel supply chains can become constrained in contested scenarios,” the company elaborates. “By reducing the need to transport fuel for power, space solar energy has the potential to improve operational flexibility and support the safety and effectiveness of U.S. personnel,” the company adds. If that sounds familiar, it is. The high cost and human toll of fuel transportation has been part and parcel of modern warfare ever since internal combustion engines replaced horses and mules in the 20th century, with the Bush presidency providing many 21st century examples during the Iraq and Afghanistan wars, and US President Donald Trump adding yet another dimension to the fuel cost issue when he decided to launch a war against Iran. In its May 6 announcement, Overview affirmed that it has already has a capacity reservation in place with Meta among other agreements. Additionally, the company reminded everyone that it has successfully demonstrated the system on an airborne platform using the same equipment to be hosted by its satellites. Overview expects to send its satellites into low Earth orbit in 2028, followed by megawatt-scale transmission in 2030. “In the early 2030s, we’ll be capable of delivering more than a gigawatt of 24/7 clean energy anywhere on Earth,” the company states. By that time, there will be more than enough existing solar arrays on Earth to provide Overview with plenty of opportunities to put its orbiting peaker plants to work. The company points out that solar arrays typically sit idle for 65-75% of a day. While batteries and other energy storage systems can squeeze some extra value out of a solar array, Overview notes that its space solar solution will extend revenue-producing hours into the night. “Utilities can bypass congested corridors and draw on infinite energy reserves above the atmosphere. Households see lower electricity costs as satellites blunt the peaks that drive price spikes,” the company adds. Data centers and other large-load facilities can also deploy space solar to access utility-scale capacity without having to wait in a long grid connection queue. Extending operational hours for solar power plants could also foster a ripple effect in the green hydrogen and e-fuels field, which has also caught the eye of military planners and defense suppliers (here’s another example). If you have any thoughts about that, drop a note in the comment thread. Image: The US startup Overview Energy is developing a space solar solution that will extend the operational hours of existing solar power plants on Earth (courtesy of Overview Energy). CleanTechnica’s Comment Policy Tina has been covering advanced energy technology, military sustainability, emerging materials, biofuels, ESG and related policy and political matters for CleanTechnica since 2009. Follow her @tinamcasey on LinkedIn, Mastodon or Bluesky. Tina Casey has 4178 posts and counting. See all posts by Tina Casey
Mitchell Beer – Stephen Lewis Climate Journalism Fellow
NASA
Tech behemoth Meta is dabbling in space-based solar as part of an effort to generate 24-hour power from solar.
The Menlo Park, CA-based company behind Facebook is hoping to beam one gigawatt of solar energy direct from space to increase the capacity of existing solar farms and help them deliver power around the clock. Meta, known in Canada for blocking Canadian audiences’ access to Canadian media, announced the deal with Virginia-based space technology start-up Overview Energy in late April.
“Space solar technology represents a transformative step forward by leveraging existing terrestrial infrastructure to deliver new, uninterrupted energy from orbit,” Nat Sahlstrom, Meta’s vice president of energy and sustainability, said in a statement.
““Our approach to space solar energy enables hyperscalers and technology providers to secure clean power with reliable siting, and speed to power,” added Overview CEO Marc Berte. “Together with Meta, we’re looking beyond traditional constraints on where and when power can be delivered to meet the growing demand for electricity.”
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In the same announcement April 27, Meta said it would look to Palo Alto-based Noon Energy for 1 GW/100 GWh of ultra-long-duration storage. The media release did not indicate dollar value, electricity costs, or firm timelines for either venture.
For Overview, “details on the startup’s agreement with Meta are sparse so far,” Latitude Media reports. “The hyperscaler declined to comment on investment terms, including whether the tech giant has made any upfront financial investments or what it anticipates the eventual cost-per-megawatt of the power to be beamed down will be. As far as whether Meta is including this gigawatt of space-based solar in its data centre power generation plans, the company said it is continuing to evaluate how that energy will be deployed.”
Both projects “are part of a scramble by AI companies to secure power for their data centres,” Space News writes. “That has, in some cases, led to public backlash regarding the environmental impacts of those centres and increased energy costs.” But neither of those challenges was enough to dampen the enthusiasm in the Meta release.
“Advancing AI at the speed and scale we’re working toward requires more energy, but today’s clean energy technologies have real limits: solar depends on sunlight, wind depends on weather, and the grid still needs more storage to make the most of both,” it states. “From collecting solar energy in orbit to storing renewable power for days at a time, we’re supporting the advancement of innovative technologies that can deliver reliable energy at the scale AI demands—while strengthening America’s energy leadership.”
While the deal with Overview is not a firm contract, Meta confidently predicts that “we’ll deploy up to 1 GW of this orbit-to-grid energy to support our data centre operations,” after becoming “one of the first major technology companies to secure a capacity reservation for space solar energy.” Latitude Media has a rather more sober take.
“It’s a long shot,” the U.S. news site writes. “The promise of space-enabled 24/7 solar has long faced skepticism, in large part because shooting solar panels into space and maintaining them for several decades is very, very expensive. Overview faces most of the same core hurdlee as its space solar peers: namely, that given the high costs of operating in space, the process of converting energy into infrared light and back again would need to be very efficient to have a hope of competing with increasingly cheap grid-scale batteries on the ground.”
News reports refer to Overview “emerging from stealth” last December. Publicly available data from Morningstar’s PitchBook presents the company as an early-stage VC with 25 employees, 11 investors, and total share value of about US$3.7 million.
Meta is expressing confidence that Overview can complete an “orbital demonstration” by 2028 and begin commercial delivery to the United States as early as 2030. The space tech company’s website echoes the 2028 target date for achieving an energy transfer from low earth orbit. But it indicates only that proving and then scaling up energy transfer from geosynchronous orbit—the milestone Meta is looking for—is “upcoming”.
Low earth orbit is “far lower than the 36,000 kilometres above the planet that [Overview] eventually plans to operate from,” Latitude Media writes.
Mitchell Beer – Stephen Lewis Climate Journalism Fellow
NASA
Tech behemoth Meta is dabbling in space-based solar as part of an effort to generate 24-hour power from solar.
The Menlo Park, CA-based company behind Facebook is hoping to beam one gigawatt of solar energy direct from space to increase the capacity of existing solar farms and help them deliver power around the clock. Meta, known in Canada for blocking Canadian audiences’ access to Canadian media, announced the deal with Virginia-based space technology start-up Overview Energy in late April.
“Space solar technology represents a transformative step forward by leveraging existing terrestrial infrastructure to deliver new, uninterrupted energy from orbit,” Nat Sahlstrom, Meta’s vice president of energy and sustainability, said in a statement.
““Our approach to space solar energy enables hyperscalers and technology providers to secure clean power with reliable siting, and speed to power,” added Overview CEO Marc Berte. “Together with Meta, we’re looking beyond traditional constraints on where and when power can be delivered to meet the growing demand for electricity.”
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In the same announcement April 27, Meta said it would look to Palo Alto-based Noon Energy for 1 GW/100 GWh of ultra-long-duration storage. The media release did not indicate dollar value, electricity costs, or firm timelines for either venture.
For Overview, “details on the startup’s agreement with Meta are sparse so far,” Latitude Media reports. “The hyperscaler declined to comment on investment terms, including whether the tech giant has made any upfront financial investments or what it anticipates the eventual cost-per-megawatt of the power to be beamed down will be. As far as whether Meta is including this gigawatt of space-based solar in its data centre power generation plans, the company said it is continuing to evaluate how that energy will be deployed.”
Both projects “are part of a scramble by AI companies to secure power for their data centres,” Space News writes. “That has, in some cases, led to public backlash regarding the environmental impacts of those centres and increased energy costs.” But neither of those challenges was enough to dampen the enthusiasm in the Meta release.
“Advancing AI at the speed and scale we’re working toward requires more energy, but today’s clean energy technologies have real limits: solar depends on sunlight, wind depends on weather, and the grid still needs more storage to make the most of both,” it states. “From collecting solar energy in orbit to storing renewable power for days at a time, we’re supporting the advancement of innovative technologies that can deliver reliable energy at the scale AI demands—while strengthening America’s energy leadership.”
While the deal with Overview is not a firm contract, Meta confidently predicts that “we’ll deploy up to 1 GW of this orbit-to-grid energy to support our data centre operations,” after becoming “one of the first major technology companies to secure a capacity reservation for space solar energy.” Latitude Media has a rather more sober take.
“It’s a long shot,” the U.S. news site writes. “The promise of space-enabled 24/7 solar has long faced skepticism, in large part because shooting solar panels into space and maintaining them for several decades is very, very expensive. Overview faces most of the same core hurdlee as its space solar peers: namely, that given the high costs of operating in space, the process of converting energy into infrared light and back again would need to be very efficient to have a hope of competing with increasingly cheap grid-scale batteries on the ground.”
News reports refer to Overview “emerging from stealth” last December. Publicly available data from Morningstar’s PitchBook presents the company as an early-stage VC with 25 employees, 11 investors, and total share value of about US$3.7 million.
Meta is expressing confidence that Overview can complete an “orbital demonstration” by 2028 and begin commercial delivery to the United States as early as 2030. The space tech company’s website echoes the 2028 target date for achieving an energy transfer from low earth orbit. But it indicates only that proving and then scaling up energy transfer from geosynchronous orbit—the milestone Meta is looking for—is “upcoming”.
Low earth orbit is “far lower than the 36,000 kilometres above the planet that [Overview] eventually plans to operate from,” Latitude Media writes.
NASA Tech behemoth Meta is dabbling in space-based solar as part of an effort to generate 24-hour power from solar. The Menlo Park, CA-based company behind Facebook is hoping to beam one gigawatt of solar energy direct from space to increase the capacity of existing solar farms and help them deliver power around the clock. Meta, known in Canada for blocking Canadian audiences’ access to Canadian media, announced the deal with Virginia-based space technology start-up Overview Energy in late April. “Space solar technology represents a transformative step forward by leveraging existing terrestrial infrastructure to deliver new, uninterrupted energy from orbit,” Nat Sahlstrom, Meta’s vice president of energy and sustainability, said in a statement. ““Our approach to space solar energy enables hyperscalers and technology providers to secure clean power with reliable siting, and speed to power,” added Overview CEO Marc Berte. “Together with Meta, we’re looking beyond traditional constraints on where and when power can be delivered to meet the growing demand for electricity.” View our latest digests In the same announcement April 27, Meta said it would look to Palo Alto-based Noon Energy for 1 GW/100 GWh of ultra-long-duration storage. The media release did not indicate dollar value, electricity costs, or firm timelines for either venture. For Overview, “details on the startup’s agreement with Meta are sparse so far,” Latitude Media reports. “The hyperscaler declined to comment on investment terms, including whether the tech giant has made any upfront financial investments or what it anticipates the eventual cost-per-megawatt of the power to be beamed down will be. As far as whether Meta is including this gigawatt of space-based solar in its data centre power generation plans, the company said it is continuing to evaluate how that energy will be deployed.” Both projects “are part of a scramble by AI companies to secure power for their data centres,” Space News writes. “That has, in some cases, led to public backlash regarding the environmental impacts of those centres and increased energy costs.” But neither of those challenges was enough to dampen the enthusiasm in the Meta release. “Advancing AI at the speed and scale we’re working toward requires more energy, but today’s clean energy technologies have real limits: solar depends on sunlight, wind depends on weather, and the grid still needs more storage to make the most of both,” it states. “From collecting solar energy in orbit to storing renewable power for days at a time, we’re supporting the advancement of innovative technologies that can deliver reliable energy at the scale AI demands—while strengthening America’s energy leadership.” While the deal with Overview is not a firm contract, Meta confidently predicts that “we’ll deploy up to 1 GW of this orbit-to-grid energy to support our data centre operations,” after becoming “one of the first major technology companies to secure a capacity reservation for space solar energy.” Latitude Media has a rather more sober take. “It’s a long shot,” the U.S. news site writes. “The promise of space-enabled 24/7 solar has long faced skepticism, in large part because shooting solar panels into space and maintaining them for several decades is very, very expensive. Overview faces most of the same core hurdlee as its space solar peers: namely, that given the high costs of operating in space, the process of converting energy into infrared light and back again would need to be very efficient to have a hope of competing with increasingly cheap grid-scale batteries on the ground.” News reports refer to Overview “emerging from stealth” last December. Publicly available data from Morningstar’s PitchBook presents the company as an early-stage VC with 25 employees, 11 investors, and total share value of about US$3.7 million. Meta is expressing confidence that Overview can complete an “orbital demonstration” by 2028 and begin commercial delivery to the United States as early as 2030. The space tech company’s website echoes the 2028 target date for achieving an energy transfer from low earth orbit. But it indicates only that proving and then scaling up energy transfer from geosynchronous orbit—the milestone Meta is looking for—is “upcoming”. Low earth orbit is “far lower than the 36,000 kilometres above the planet that [Overview] eventually plans to operate from,” Latitude Media writes.
Mitchell Beer
Stephen Lewis Fellow
Mitchell is founding publisher and managing editor of The Energy Mix. He is rumoured to be a frighteningly fast writer, after working seven years as a journalist, 35-plus as a commercial writer, 45-plus as a sustainable energy and climate specialist, and now again as a journalist and editor. In October, 2019, he delivered a TEDx Ottawa talk on building wider public support for faster, deeper carbon cuts. He received the Clean50 Lifetime Achievement Award in October 2022.
Stephen Lewis Fellow Mitchell is founding publisher and managing editor of The Energy Mix. He is rumoured to be a frighteningly fast writer, after working seven years as a journalist, 35-plus as a commercial writer, 45-plus as a sustainable energy and climate specialist, and now again as a journalist and editor. In October, 2019, he delivered a TEDx Ottawa talk on building wider public support for faster, deeper carbon cuts. He received the Clean50 Lifetime Achievement Award in October 2022. Your email address will not be published.Required fields are marked *
NASA Tech behemoth Meta is dabbling in space-based solar as part of an effort to generate 24-hour power from solar. The Menlo Park, CA-based company behind Facebook is hoping to beam one gigawatt of solar energy direct from space to increase the capacity of existing solar farms and help them deliver power around the clock. Meta, known in Canada for blocking Canadian audiences’ access to Canadian media, announced the deal with Virginia-based space technology start-up Overview Energy in late April. “Space solar technology represents a transformative step forward by leveraging existing terrestrial infrastructure to deliver new, uninterrupted energy from orbit,” Nat Sahlstrom, Meta’s vice president of energy and sustainability, said in a statement. ““Our approach to space solar energy enables hyperscalers and technology providers to secure clean power with reliable siting, and speed to power,” added Overview CEO Marc Berte. “Together with Meta, we’re looking beyond traditional constraints on where and when power can be delivered to meet the growing demand for electricity.” View our latest digests In the same announcement April 27, Meta said it would look to Palo Alto-based Noon Energy for 1 GW/100 GWh of ultra-long-duration storage. The media release did not indicate dollar value, electricity costs, or firm timelines for either venture. For Overview, “details on the startup’s agreement with Meta are sparse so far,” Latitude Media reports. “The hyperscaler declined to comment on investment terms, including whether the tech giant has made any upfront financial investments or what it anticipates the eventual cost-per-megawatt of the power to be beamed down will be. As far as whether Meta is including this gigawatt of space-based solar in its data centre power generation plans, the company said it is continuing to evaluate how that energy will be deployed.” Both projects “are part of a scramble by AI companies to secure power for their data centres,” Space News writes. “That has, in some cases, led to public backlash regarding the environmental impacts of those centres and increased energy costs.” But neither of those challenges was enough to dampen the enthusiasm in the Meta release. “Advancing AI at the speed and scale we’re working toward requires more energy, but today’s clean energy technologies have real limits: solar depends on sunlight, wind depends on weather, and the grid still needs more storage to make the most of both,” it states. “From collecting solar energy in orbit to storing renewable power for days at a time, we’re supporting the advancement of innovative technologies that can deliver reliable energy at the scale AI demands—while strengthening America’s energy leadership.” While the deal with Overview is not a firm contract, Meta confidently predicts that “we’ll deploy up to 1 GW of this orbit-to-grid energy to support our data centre operations,” after becoming “one of the first major technology companies to secure a capacity reservation for space solar energy.” Latitude Media has a rather more sober take. “It’s a long shot,” the U.S. news site writes. “The promise of space-enabled 24/7 solar has long faced skepticism, in large part because shooting solar panels into space and maintaining them for several decades is very, very expensive. Overview faces most of the same core hurdlee as its space solar peers: namely, that given the high costs of operating in space, the process of converting energy into infrared light and back again would need to be very efficient to have a hope of competing with increasingly cheap grid-scale batteries on the ground.” News reports refer to Overview “emerging from stealth” last December. Publicly available data from Morningstar’s PitchBook presents the company as an early-stage VC with 25 employees, 11 investors, and total share value of about US$3.7 million. Meta is expressing confidence that Overview can complete an “orbital demonstration” by 2028 and begin commercial delivery to the United States as early as 2030. The space tech company’s website echoes the 2028 target date for achieving an energy transfer from low earth orbit. But it indicates only that proving and then scaling up energy transfer from geosynchronous orbit—the milestone Meta is looking for—is “upcoming”. Low earth orbit is “far lower than the 36,000 kilometres above the planet that [Overview] eventually plans to operate from,” Latitude Media writes.
Mitchell Beer
Stephen Lewis Fellow
Mitchell is founding publisher and managing editor of The Energy Mix. He is rumoured to be a frighteningly fast writer, after working seven years as a journalist, 35-plus as a commercial writer, 45-plus as a sustainable energy and climate specialist, and now again as a journalist and editor. In October, 2019, he delivered a TEDx Ottawa talk on building wider public support for faster, deeper carbon cuts. He received the Clean50 Lifetime Achievement Award in October 2022.
Stephen Lewis Fellow Mitchell is founding publisher and managing editor of The Energy Mix. He is rumoured to be a frighteningly fast writer, after working seven years as a journalist, 35-plus as a commercial writer, 45-plus as a sustainable energy and climate specialist, and now again as a journalist and editor. In October, 2019, he delivered a TEDx Ottawa talk on building wider public support for faster, deeper carbon cuts. He received the Clean50 Lifetime Achievement Award in October 2022. Your email address will not be published.Required fields are marked *
Considered the Source Since 2008 MAMARONECK, NY (May 11, 2026) — The Village of Mamaroneck Board of Trustees is set to hold a work session on May 11 at 5:30 p.m. in the courtroom at 169 Mt. Pleasant Avenue. The agenda includes several significant items for discussion. The Westchester Coalition for Clean Water will present to the board. Additionally, the trustees will review PLL M of 2026 concerning public use of cannabis, led by the Village Attorney. Other discussions will focus on a GTSC HSGP Police Traffic Services Grant, agreements related to Emelin Theatre for a park concert, and self-service kayak and stand-up paddle board rentals. Contract extensions with SLR and Choice Words are also on the table. The board will consider accepting a grant to set up a capital project for solar panels at Harbor Island Park. The Village Treasurer will lead this discussion. This article was prepared with the assistance of AI tools under the direction and editing of Robert Cox. Have information about this story? Email robertcox@talkofthesound (preferred) or contact via WhatsApp: +353 089 972 0669. You must be logged in to post a comment.
CCX Media The City of Robbinsdale wants to make it easier for residents to consider solar power for their homes. “You don’t need a conditional use permit, you don’t need to get approval from the city council,” said Sustainability Coordinator Kayla Kirtz. “All you need to do is apply for a regular building permit on our city website.” The City of Robbinsdale has enacted a number of policies and programs designed to help more residents add solar power to their homes. Kirtz also said the city is partnering with Hennepin County and its involvement in Switch Together to get more people hooked up to solar. “It’s essentially a solar group buy, so it brings the cost down if residents are looking to install solar on their homes,” said Kirtz. “It’s a program with vetted installers and, ideally, it makes things super easy for folks.” Over the past two years, the city has installed solar panels on the roof of its water treatment facility and city hall. Cities Stories NAVIGATE SUBSCRIBE Get email updates for daily story previews. “Week in Review” video links, and programming previews. CONNECT LOCATION CCX Media 6900 Winnetka Avenue North Brooklyn Park, MN 55428 Main Phone: 763-533-8196
Share Options WASHINGTON: Top solar companies, banks and insurers have stopped doing business with at least a half dozen recently built US panel factories because of uncertainty over whether their ties to China could disqualify them from clean-energy subsidies, according to industry executives and documents reviewed by Reuters. The shift, driven by new Trump administration policies, jeopardizes more than a third of US solar capacity in factories initially built by Chinese firms. Details of how the policy uncertainty is driving installers and insurers away from US solar factories with China ties have not been previously reported. The emerging effects dovetail with US President Donald Trump’s broader efforts to block Chinese companies from the US market and to slash government support for green energy. However, the policy could backfire by imperiling growth in US manufacturing jobs and power generation at a time of rising utility bills and soaring electricity demand from data centers serving the artificial intelligence industry, industry experts say. Sunrun, the largest US residential solar installer, is among the companies now avoiding Chinese suppliers. “It’s holding up financings of desperately needed solar and storage projects,” said Keith Martin, an attorney at Norton Rose Fulbright who advises on renewable energy tax deals. The potentially far-reaching effects on US manufacturing underscore the difficulty of decoupling from China’s global dominance of renewable energy and green technologies, driven largely by Beijing’s own heavy subsidies for Chinese firms. The global reach of China’s industrial policy creates a dilemma for US regulators who want to block Chinese firms without imperiling US solar manufacturers that depend on Chinese equipment and technology to produce competitive and affordable products. Without robust growth in domestic solar manufacturing, the United States has few options for expanding renewable power beyond importing panels made by Chinese companies, which will lead to higher prices, US executives say. “This is undoubtedly going to continue to increase the cost of power in the United States,” said Aaron Halimi, chief executive of Renewable Properties, a San Francisco developer of small-scale utility projects that has shifted most of its sourcing to Tempe, Arizona-based First Solar FSLR.O to avoid suppliers with China links. The fresh uncertainty in US solar investments stems from provisions in the Trump-backed “One Big Beautiful Bill” that the Republican-controlled Congress passed in 2025. The legislation slashed Biden-era clean-energy subsidies and restricted certain foreign countries, including China, from securing those that remained. The US Treasury Department has yet to provide full guidance on how the law will be implemented, and a department spokesperson declined to give a timeline for when that guidance would be published. Trump wants to rapidly expand the US power grid to fuel American data centers. But power-industry experts say solar installations, combined with battery storage that clicks on when the sun isn’t shining, are the quickest way to expand electricity generation because they’re easier to build than gas, coal or nuclear plants. Trump has called renewable energy unreliable and expensive and enacted policies promoting expansion of fossil fuel power sources. The White House did not respond to a request for comment. A spokesperson for China’s embassy in Washington criticized the US restrictions as discriminatory and said Beijing would defend its companies’ interests. China controls about 80 percent of global solar equipment manufacturing, according to Wood Mackenzie. Its companies, including LONGi, Trina, and others, were among the quickest to build and operate U.S. factories when former President Joe Biden’s 2022 climate-change law created a tax credit for clean-energy factories. Since then, solar equipment makers have announced nearly $43 billion in investments supporting a projected 48,000 jobs, according to the Solar Energy Industries Association. Domestic manufacturing is now aligned with US demand for solar panels, eliminating the need for panel imports. But that could change if a significant portion of US factories caught up in the regulatory uncertainty are unable to compete. The Trump-backed legislation restricts Chinese companies to 25 percent ownership stakes in plants seeking federal subsidies, imposes sourcing requirements, and prohibits “effective control” by Chinese firms. Companies say the subsidies, which include tax credits for solar manufacturing and installation, are crucial to remaining competitive. Chinese companies have sought to comply by selling off factory stakes or otherwise restructuring. But most have preserved financial links to their US plants, sometimes in the form of profit-sharing or supply deals, according to a Reuters review of corporate disclosures. Industry officials have questions about whether those remaining links disqualify the factories from US clean energy manufacturing credits. Absent guidance from the Treasury Department, installers including industry behemoth Sunrun are shunning these factories, while banks and insurers are withholding financing and coverage. Sunrun in January circulated a pared-down list of approved solar-panel suppliers to installation partners, according to a document seen by Reuters. The list included only non-Chinese manufacturers such as Qcells, REC, Silfab and Elin. Previously, it had included Canadian Solar, JA Solar, Jinko, LONGi and Trina – all of which are China-linked. — Reuters “We have taken a conservative stance and do not procure equipment from manufacturers that would raise compliance concerns,” Sunrun Deputy Chief Financial Officer Patrick Jobin said in a statement to Reuters. Palmetto, a North Carolina-based company that sells rooftop solar panels, is also steering clear of China-linked producers despite their attempts at compliance, general manager Sean Hayes said. Meanwhile, banks including Morgan Stanley, JPMorgan and Goldman Sachs have scaled back tax-equity financing for some solar projects due to concerns that future Treasury interpretations could retroactively invalidate tax credits, according to three people familiar with the deals who spoke on condition of anonymity. The banks declined to comment. Insurers have taken a harder line, refusing to insure companies against the risk they will be barred from clean-energy tax credits, according to Antony Joyce, a tax-insurance specialist at broker Marsh. “The companies that are best positioned right now are certainly the ones that didn’t have clear ownership ties to a country of concern,” said Peter Henderson, a principal at accounting firm Baker Tilly, who said Treasury’s expected guidance will be crucial. The Solar Energy Manufacturers for America Coalition, a trade group representing non-Chinese companies with US factories, including First Solar and Hanwha’s Qcells, has urged the Treasury Department to take a tough stance. The core issue driving firms away is that Chinese companies are maintaining ties with their factories instead of making a clean break. Factories that were originally built and operated by China-linked producers account for at least 25 gigawatts of the nation’s about 66 GW of operating solar module manufacturing capacity. “Very few Chinese manufacturers are actually decoupling themselves from their US factories entirely,” said Elissa Pierce, an analyst at Wood Mackenzie. China’s JinkoSolar, which operates a factory in Florida, announced on Friday that it had agreed to sell a 75.1 percent stake in its US subsidiary to private equity firm FH Capital, which is also an investor in a South Carolina solar cell manufacturer, ES Foundry. The Chinese parent company of Boviet Solar, which produces panels in North Carolina, have said they are looking for outside investors. Illuminate USA, a joint venture between China’s LONGi and Chicago-based Invenergy, reduced the Chinese firm’s ownership stake in an Ohio plant built in 2024 to below 25 percent and renegotiated its intellectual property agreement with LONGi, according to an Invenergy source. But Invenergy is uncertain about the future of the plant, which employs around 1,700 workers. Illuminate and LONGi did not comment. In March comments to the Internal Revenue Service urging clear guidance, the company said: “The continued operation of Illuminate USA and other US manufacturers remains at risk.” – Reuters Share Options Categories
Colorado Springs Utilities will take another run at enacting new fees for residents who connect their home solar panels to the power grid as the popularity of solar energy continues to grow. At a Utilities Board committee meeting scheduled for May 18, staff members are expected to present a new model for updating the net metering program with new fee structures. The program, which covers nearly 11,000 customers in Colorado Springs, credits homes for the excess solar power they produce and provide to the city’s electrical grid. Utilities staff have argued that the system has led to a growing gap between the solar and non-solar bills, adding more cost to the power Utilities has to provide during the evening hours. Over the past four months, Utilities conducted surveys and focus groups to test cost increases that solar customers would be more likely to support. “There’s a very deep belief that they’re contributing to their own personal energy goals and to the community. We want to make sure that we provide them some autonomy to make choices. That’ll be a very helpful part of getting their buy-in,” said Brittany Harrison, an energy strategy supervisor for Utilities. Utilities conducted a pair of focus groups at the beginning of April about the solar program, one with 12 solar customers and a second with nine non-solar customers. Utilities shared the results with its board — composed of City Council members — during a working committee meeting on April 20, and it will use the findings to create the upcoming recommendations. Last year, Utilities proposed a “demand charge” that it would add to the electricity bills of customers in the solar net metering program. The fee would have charged customers more for power used between 5 and 9 p.m. based on their maximum use during the month. The City Council narrowly voted to remove that charge from the overall rate case after dozens of solar customers and providers attended a council meeting to protest the proposal. Debra Fortenberry added solar panels to the roof of her house near Bear Creek Regional Park in 2023 and joined the net metering program soon after. The east-facing panels produced more than 200 kilowatt-hours of electricity over the course of April. Fortenberry accepted that there would likely be increased costs in the net metering program but wanted them to come from a friendly place. She worried that Utilities was trying to blame solar customers for the increases to other residents’ utility bills. “There was a large degree of bias against rooftop solar in that (April committee) meeting. We want the Utilities Board to understand that what they’re getting about rooftop solar comes from that place of bias,” Fortenberry said. The debate over the next version of the program comes as Colorado makes it easier for residents to add solar panels to their homes. On Thursday, Gov. Jared Polis signed a bill into law permitting the use of portable plug-in solar panels. Utilities spokesperson Amy Trinidad said the agency will gather public feedback on the proposed plan between May 18 and the Utilities Board meeting in June. If approved, the rate changes would go to the City Council for a vote later this summer. Leslie Smith, who led the focus groups for Utilities, said the solar customers wanted direct and transparent information from Utilities about future changes to the program. Smith said some users added the panels primarily for environmental reasons, while others wanted to save money on their bills. Residential solar panels provide around 50 megawatts of power to the city grid, according to Utilities data from the end of 2025. In comparison, the combined power generated from the six large solar arrays Utilities contracts is around 289 megawatts. The issue for Utilities is that not all power is created equally. The excess power from home solar panels is produced during the mornings and late afternoon, when the grid has less demand. The customers then redeem those credits during the “on-peak” hours starting around 5 p.m. and pay significantly less at that point than other customers. “When people can afford it, I recommend it. But it’s gotta be for their own use. The problem with rooftop solar isn’t their usage or their fundamental beliefs. It’s when they try to monetize it based off of other customers paying for it,” Utilities CEO Travas Deal said during the meeting. Last fall, Utilities described the difference as providing “subsidized” power through net metering. The phrasing angered many solar customers, who often spent thousands of dollars to install the panels, and concerned City Councilmember and Utilities board member Nancy Henjum. “It’s almost as if we’re attacking a belief system in an energy source and their choice to be part of it individually. And that’s super tricky,” Henjum said. The non-solar customers in their focus group had no problem paying slightly more per month to support the broader benefits of solar power. Smith said those residents did not mind a $2 monthly cost to cover the reduced bills for net metering. Support quickly dropped off as the cost approached $5 per month. The focus groups were split over how the new rates should be structured. In the survey Utilities ran in January, the leading result was market-based pricing for electricity used when the solar panels were not producing. Yet that result was supported by only 47% of respondents. In the focus group, the favored new cost was a flat monthly fee to residents to connect their solar panels to the grid. Several of the non-solar customers said they’d be interested in adding solar panels if there was an easier option. House Bill 1007, which Polis signed Thursday, allows portable solar panels that can be directly plugged into a wall. The small panels are often known as balcony solar because they can be placed on smaller locations like balconies. One of the groups that testified in support of the bill was Solar United Neighbors, a national nonprofit backing the residential use of solar panels. Tanner Simeon-Cox, the nonprofit’s Colorado organizer, said the panels could be a rapid solution for families looking to reduce their electricity bills in the long term. “It’s really important that we talk about ease of entry and ease of use too. These are something that you get and quickly plug in. As long as it had the appropriate safety standards, you can use it without doing a lot to upgrade your home,” Simeon-Cox said. Simeon-Cox said the new law may not lead to big changes for the net metering program. A single plug-in solar panel might be able to support the house’s demand but not provide enough excess power to be worth connecting to the grid. Anyone who did still want to join net metering might have to install other devices to manage the two-way connection. Still, Colorado Springs Utilities has seen the net metering program soar in popularity over the past few years even with the higher upfront cost for solar panels. Around 1,000 of the participants have joined since the net metering fee was discussed in October. Of the options Utilities has discussed, Fortenberry said she would prefer to see reduced credits rather than new fees. Any change to the credits would need to be small, though, because Fortenberry said the point of the program should be encouraging more solar panels. “When you pay your own customers, the money stays here, with residents who spend it here. You’re not sending our money to Texas or another state to acquire power,” Fortenberry said. Reporter Colorado Springs Gazette is proudly powered by WordPress Welcome to the Denver Gazette Subscribe to stay up to date with all things Colorado.
Overcast. Low 49F. Winds S at 5 to 10 mph.. Overcast. Low 49F. Winds S at 5 to 10 mph. Updated: May 9, 2026 @ 10:46 pm Solar panels are attached roofs on homes in the Carmel Valley area in August 2025 in San Diego.
Solar panels are attached roofs on homes in the Carmel Valley area in August 2025 in San Diego. We live in an age of both scientific miracles and superstition about science, increasing more or less in tandem. One year we’re creating novel vaccines that arrest a global pandemic, and four years later we’ve got measles outbreaks because people believe nonsense about vaccines, disseminated by the nation’s chief health official. Solar power is another example. Here is a technology that, rather than digging up fossils and burning them to unleash solar energy collected millions of years ago, miraculously sucks that energy directly out of the sky. Unlike those fossil fuels, it’s harmless, limitless and on balance doesn’t generate greenhouse gases that heat up the planet. Javascript is required for you to be able to read premium content. Please enable it in your browser settings. Home delivery and Digital Access customers of The Eagle-Tribune get deals for restaurants, hotels, attractions and other businesses, locally and across the country. Play sudoku, the daily jigsaw, word search and more. See our e-edition for a full replica of today’s newspaper. On Tuesdays and Saturdays, see special digital-only news — along with entertainment, TV listings, comics and puzzles — in a newspaper-style format. Sorry, there are no recent results for popular commented articles. Sign up now to get our FREE breaking news coverage delivered right to your inbox. First Amendment: Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances. Your browser is out of date and potentially vulnerable to security risks. We recommend switching to one of the following browsers:
CHANGZHOU, JIANGSU, CHINA, May 10, 2026 /EINPresswire.com/ — Modern landscape architecture increasingly demands a seamless integration of aesthetic elegance and ecological responsibility. As urban planners and private developers move away from traditional grid-tied systems, the focus shifts toward self-sustaining outdoor lighting that complements the visual identity of parks and residential pathways. However, the transition to solar technology requires a sophisticated understanding of how decorative forms impact technical performance. Finding a reliable Custom Solar Post Top Garden Light Exporter has become a priority for international firms that manage high-end landscaping projects. Starslighting (Changzhou Starslighting Technology CO.,LTD.) meets this global demand by providing engineered solutions that prioritize both durability and design. By evaluating specific performance metrics, decision-makers can ensure that their investments contribute to the long-term value and safety of the public realm. 1. Photovoltaic Integration Density: Balancing Aesthetic Form with Charging Function The primary challenge in post-top garden light design involves the limited surface area available for solar panels. Unlike large street lights, garden fixtures must remain compact to maintain their ornamental appeal. Therefore, engineers must maximize the photovoltaic integration density within a circular or hexagonal footprint. High-quality exporters utilize monocrystalline silicon cells because they offer superior conversion rates in smaller spaces compared to polycrystalline alternatives. For instance, the 12W all-in-one solar garden lights from Starslighting utilize the entire top surface of the fixture to capture sunlight from every angle. Furthermore, the placement of these panels must account for potential shading from nearby trees or architectural elements. A well-designed post-top light, such as the ST-G043 model, ensures that the solar harvesting surface remains unobstructed by the lighting assembly itself. By prioritizing high-density solar integration, contractors can guarantee that the battery receives a full charge even during shorter winter days. Consequently, this technical balance prevents the common issue of decorative lights failing prematurely due to insufficient energy collection. 2. Thermal Resilience of Integrated Lithium Battery Systems “All-in-one” designs represent the pinnacle of modern garden lighting because they house the solar panel, LED engine, and battery within a single unit. However, this compact architecture creates a significant engineering hurdle: heat management. Internal temperatures can rise quickly when the battery and LEDs share a confined space, potentially leading to accelerated component degradation. Changzhou Starslighting Technology CO.,LTD. addresses this risk by utilizing high-cycle Lithium Iron Phosphate (LiFePO4) batteries. These batteries offer much higher thermal stability than standard lithium-ion variants, making them ideal for high-temperature environments. Moreover, the internal layout must facilitate natural heat dissipation. High-performance exporters incorporate thermal barriers or ventilation gaps between the LED board and the battery compartment. This structural precaution ensures that the heat generated during the night does not affect the battery’s ability to store energy during the day. When sourcing custom solutions, project managers should demand proof of thermal testing. This data ensures that the integrated systems can survive the five-year or ten-year lifecycles typically expected in municipal contracts. 3. Photometric Precision: Enhancing Pedestrian Safety Without Light Pollution Garden lighting serves two main purposes: creating an inviting atmosphere and ensuring pedestrian safety. Achieving both requires photometric precision, particularly in the way light is distributed around the pole. Many basic solar lights act as “glowing orbs” that scatter light upward or unevenly, causing light pollution and glare. In contrast, professional-grade fixtures use specialized optics to achieve Type V circular distribution. This pattern ensures that the light reaches the ground in a uniform circle, eliminating dark spots between poles. Real-world applications demonstrate the importance of this metric. A notable example is the project involving 10W solar LED garden lights on 3-meter poles in Athens, Greece. By using precise optical lenses, the installation provided sufficient illumination for historical walkways while maintaining a soft, glare-free ambiance. This level of control is essential for residential areas where excessive light spill can disturb inhabitants. Starslighting (Changzhou Starslighting Technology CO.,LTD.) provides detailed IES files for its products, allowing landscape architects to simulate the lighting effect before making a final purchase. 4. Material Integrity and Anti-Corrosion Standards for Urban Environments Outdoor fixtures face constant exposure to UV radiation, fluctuating humidity, and, in coastal regions, salt-heavy air. Therefore, the material integrity of the housing is a non-negotiable performance metric. High-end exporters typically use die-cast aluminum alloy 6063 or similar grades for the main body. These materials offer a superior strength-to-weight ratio and natural resistance to rust. Additionally, the quality of the powder coating determines how well the light will retain its color over years of sun exposure. Waterproofing remains another critical factor, as moisture ingress can cause catastrophic failure of the internal electronics. An IP65 rating is the industry standard for garden lights, indicating complete protection against dust and low-pressure water jets. Starslighting ensures that its post-top series, including the ST-G041 and ST-G042, features robust gaskets and tempered glass or high-grade PC lenses. These materials resist yellowing and cracking, which are common issues in lower-quality plastic alternatives. By choosing materials that withstand the elements, developers reduce the frequency of maintenance and replacement. 5. Intelligence Beyond On/Off: Smart MPPT and Adaptive Power Management Modern solar technology relies on intelligent control systems to manage energy consumption during periods of bad weather. Maximum Power Point Tracking (MPPT) controllers are significantly more efficient than older PWM models. They adjust the electrical input from the solar panels to ensure the battery charges at the fastest possible rate. Furthermore, adaptive power management allows the light to stay on even after several rainy days. When the battery voltage drops, the controller automatically dims the LED output to conserve power, a feature often called “Rainy Day Resilience.” Smart exporters also offer customizable dimming schedules. For instance, a park might require 100% brightness during the early evening when pedestrian traffic is high, but only 30% brightness after midnight. This intelligent scaling saves energy and extends the lifespan of the battery and LEDs. Starslighting incorporates these smart algorithms into its garden light range, ensuring that the lights operate reliably throughout the year. This level of technical sophistication separates industrial-grade manufacturers from companies that produce simple consumer-level garden lamps. 6. Engineering Serviceability and Mechanical Mounting Versatility The final metric involves the practicalities of installation and long-term serviceability. A post-top light must mount securely to various pole diameters, typically ranging from 60mm to 76mm. Mechanical mounting versatility ensures that the fixture remains stable during high winds. Furthermore, even though these systems are low-maintenance, they should still be serviceable. Engineers at Changzhou Starslighting Technology CO.,LTD. design their “all-in-one” heads to be accessible, allowing technicians to replace batteries or controllers if necessary without replacing the entire unit. Customization also plays a vital role in high-stakes projects. Landscape architects often require specific color temperatures (CCT), such as a warm 3000K for traditional gardens or a cool 5000K for modern urban plazas. An exporter’s ability to provide these bespoke adjustments, along with custom housing colors, adds significant value to the partnership. By offering flexible engineering services, Starslighting helps its clients meet the unique aesthetic and technical requirements of their specific sites. This commitment to service ensures that the lighting becomes a perfectly integrated component of the broader landscape design. Conclusion: Investing in Sustainable Urban Beautification The selection of solar garden lighting represents a long-term investment in the safety and beauty of the urban environment. Decision-makers must look beyond the initial price and evaluate the core performance metrics that determine reliability. From thermal management to photometric precision, each technical detail plays a role in the project’s success. Starslighting (Changzhou Starslighting Technology CO.,LTD.) continues to lead the industry by providing certified, high-performance solutions that meet the needs of a changing world. As the demand for sustainable infrastructure grows, the partnership between innovative manufacturers and global contractors will define the future of landscape design. By demanding high standards in photovoltaic efficiency and material integrity, project managers can ensure that their parks and pathways remain illuminated for years to come. High-quality lighting is not just a utility; it is a fundamental part of creating vibrant, safe, and sustainable communities. To learn more about custom solar post-top garden light solutions and technical project support, please visit the official website: https://www.czstarslighting.com/.
Changzhou Starslighting Technology CO.,LTD. Changzhou Starslighting Technology CO.,LTD. + +86 17305192737 info@czstarslighting.com Visit us on social media: X Legal Disclaimer: EIN Presswire provides this news content “as is” without warranty of any kind. We do not accept any responsibility or liability for the accuracy, content, images, videos, licenses, completeness, legality, or reliability of the information contained in this article. If you have any complaints or copyright issues related to this article, kindly contact the author above.
DHAKA: Bangladesh’s factories have turned to rooftop solar to cut emissions and power costs, but limited roof space can only meet a fraction of their needs, so they are looking further afield, including buying renewable power from off-site plants. Bangladesh last year began allowing private companies to sell power directly to large consumers, with electricity from the “merchant power plants” carried over the grid and users paying charges to grid and distribution companies. India has long allowed open-access power purchases, while Pakistan is working towards a competitive bilateral market, but has faced disputes over use-of-system charges. Meanwhile, Bangladesh’s energy regulatory commission is working on the key details of how its own open-access system will work, including the charges that consumers would have to pay to use the grid. Energy analysts said the viability of open-access power purchase deals partly depends on open-access grid charges and additional surcharges, which will be key to balancing the interests of businesses, households and farmers. Once the grid charges and rules are finalised, corporate buyers like ready-made garment manufacturers with greenhouse gas emission reduction targets purchase renewable electricity from remote solar or wind power plants directly. A mid-sized factory can offset between 10 per cent and 15 per cent of its electricity demand through rooftop solar alone, while off-site generation could take that to 50 per cent, 70 per cent or more, said Mohiuddin Rubel, a managing director of garment supplier Denim Expert Ltd. Companies can also buy renewable energy certificates, or RECs, from renewable energy producers. But Bangladesh so far lacks a well-developed REC market with a sufficient supply of those certificates, garment suppliers said. “Merchant power plants will allow us to purchase electricity directly, reducing the need for purchasing renewable energy certificates from the market,” said Mashook Mujib, sustainability manager at fashion manufacturer DBL Group.
CHARGES KEY Bangladesh’s recent annual investment in renewable energy is less than $250 million a year, far less than what is needed, said Shafiqul Alam, energy analyst at the Institute for Energy Economics and Financial Analysis, a US-based non-profit. Merchant power generators could offer a promising way forward in boosting renewable investment, he said. But recent news reports have suggested the open access charges could be about 2 US cents per kilowatt-hour, on top of renewable tariffs of around 9 US cents per kilowatt-hour. Such charges could raise costs for industrial consumers and the response from industry could be lukewarm, said Alam. Government officials said the charges should balance the interests of all parties. “Each party has its own needs: consumers need affordable and reliable electricity; project developers need bankable projects and predictable revenue; and utilities and grid operators need to maintain the system and recover the cost of their services,” said Rashedul Alam, assistant director of Bangladesh’s Sustainable and Renewable Energy Development Authority, or SREDA. Experts from neighbouring India and Pakistan said the countries offered mixed lessons for Bangladesh. In Pakistan, the charges for using the transmission and distribution network are stalling the transition to off-site renewables for industry, said Khalid Waleed, research fellow at Pakistan’s Sustainable Development Policy Institute. “Pakistan’s experience offers a cautionary lesson for countries such as Bangladesh,” he said. Pakistan has moved towards a flat charge of Rs12.55 ($0.045) per kilowatt-hour, while the industry believes the charge should be closer to Rs5.85 ($0.045) per kilowatt-hour, Waleed said. As Pakistani consumers switch from the grid to renewable power, the government tries to make up the lost revenue by adding old system costs to bills, he said.
GROWING POWER DEMAND India, by contrast, has developed remote power purchase arrangements through both long-term open-access deals, as well as short-term power trading. Indian businesses buying power through open-access arrangements also have to pay an extra charge beyond the grid charge itself, to subsidise many households and farmers. “If these charges aren’t recovered from open-access consumers, who typically are corporate buyers who can bear these charges, it will be a very heavy burden on poorer consumers,” said Deepak Krishnan, deputy programme director for energy at WRI India. Bangladesh’s energy regulator has to balance the competing interests by fixing the charges in a transparent way so that utility companies do not lose out, and the market is not destroyed either, said Krishnan. Prabhakar Sharma, a consultant at Indian consulting outfit JMK Research, said open-access charges should be consistent and stable over a defined period so that investors can plan their business models. “If the government wants to promote open-access market for solar and wind for industrial consumers, there can be waivers of charges to a certain extent,” added Sharma. In Bangladesh, open-access power purchase deals could help meet the growing industrial electricity demand, said IEEFA’s Shafiqul Alam. Utilities and policymakers could avoid imposing a high charge right away and revisit the issue after about three years to assess whether utilities are actually losing revenue, he added. Rashedul Alam from SREDA said Bangladesh would eventually need market platforms, such as energy exchanges or similar arrangements, that allow renewable generators to sell power to alternative buyers if one corporate customer exits.
Independent news from Lebanon and the Arab world — analysis, reporting, and live updates, 24/7. Tech & Science Chinese researchers achieve 30.3% efficiency in rigid perovskite tandem solar cells with 92% retention after 1,000 hours. A new crystallization control method has pushed all-perovskite tandem solar cells past the 30 percent efficiency threshold while maintaining strong durability, according to a team from the Chinese Academy of Sciences. The rigid devices achieved a certified power conversion efficiency of 30.3 percent, with flexible versions reaching 28 percent. Ge Ziyi, PhD, and Liu Chang, PhD, led the research at the Ningbo Institute of Materials Technology and Engineering (NIMTE). They believe the breakthrough could accelerate the development of lightweight, high-efficiency solar technologies that are cheaper and simpler to produce than conventional silicon-based panels. “The findings provide a pathway to simultaneously improve efficiency and durability in both rigid and flexible devices, thereby advancing the development of lightweight, scalable photovoltaic technologies,” the scientists stated. All-perovskite tandem cells are considered a promising photovoltaic technology because they capture sunlight more efficiently than single-junction cells and can be manufactured using low-temperature solution processing, which lowers costs. However, asynchronous crystallization—where different parts of the multicomponent perovskite films crystallize at different rates during production—has been a major obstacle, creating structural defects and compositional inconsistencies that hurt efficiency and stability. To solve this, the team applied hard-soft acid-base (HSAB) theory to design an additive strategy. They introduced specific additives into both wide-bandgap and narrow-bandgap perovskite layers to synchronize nucleation and crystal growth. For wide-bandgap perovskites, they used difluoro(oxalato)borate (DFOB⁻) additives, and for narrow-bandgap layers, tetrafluoroborate (BF4⁻). Structural and optical analyses confirmed that the method promoted homogeneous crystal growth and prevented halide redistribution, a common cause of defects and stress accumulation inside the cells. The approach also suppressed uneven vertical phase distribution, improving film uniformity across the devices. The improvements translated into higher overall performance. Wide-bandgap perovskite solar cells saw efficiency rise from 18.5 to 20.1 percent, while narrow-bandgap devices improved from 21.6 to 23.3 percent. When integrated into monolithic two-terminal tandem architectures, the optimized rigid device reached a peak efficiency of 30.3 percent, with an open-circuit voltage of 2.16 volts and a fill factor of 85.2 percent. Flexible tandem cells also performed well, achieving 28.2 percent efficiency with a certified value of 28.0 percent. Operational stability, a critical bottleneck for commercial adoption of perovskite solar cells, was also strong. The optimized rigid device retained 92 percent of its initial efficiency after 1,000 hours of maximum power point tracking. Flexible tandems maintained 95.2 percent of their original efficiency after 10,000 bending cycles. The results point to potential applications in wearable electronics, lightweight power systems, and flexible solar technologies. “This study establishes a general chemical principle for regulating crystallization in compositionally complex perovskite systems,” the researcher concluded in a press release. The findings were published in the journal Nature Nanotechnology.