Solar energy
Solar energy in Brazil is experiencing a phase of consolidation and expansion, but the sector’s focus has shifted. While previously the main question was where there was enough sun, now the central issue is… how to make projects viable solar energy in low-irradiation regions with technical efficiency and financial return..
This new scenario is driven by advancements in efficient panels, bifacial systems, microinverters, batteries, and intelligent management solutions. Therefore, based on… information from Estadão contentIn this article, we will discuss strategies for generating solar energy in locations with low solar irradiance.
According to ABSOLAR, Brazil has already surpassed 60 GW of installed solar capacity, equivalent to about a quarter of the national electricity grid. In distributed generation, there are more than 3,7 million systems installed in residences, businesses, and rural properties. In this context, Making solar energy projects viable outside of areas with high solar irradiance has become essential to sustaining the sector’s growth..
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The accelerated growth of solar energy in Brazil is no longer limited to traditionally sunny regions. States in the South, Southeast, and parts of the Midwest, which have greater cloud cover and lower average annual solar incidence, have become consistently integrated into the photovoltaic generation map.
This movement was only possible because The strategy ceased to be solely geographical and became technological.In regions with low solar irradiance, every detail of the project directly influences performance. Therefore, solutions that reduce losses, increase efficiency, and improve the use of available light are crucial for the success of solar energy projects.
Before choosing equipment, it is essential to define the project strategy. This includes analyzing consumption, tariff profile, available space, slope and orientation of surfaces, as well as local weather conditions. A well-constructed strategy transforms natural limitations into operational gains..
According to industry experts, regions with low solar irradiance require realistic generation simulations and careful evaluation of financial return. However, when planning is adequate, solar energy projects maintain economic attractiveness and predictability, even in less favorable insolation scenarios.
Choosing efficient panels is the first technical pillar for making photovoltaic systems viable in areas where the sun is less visible. Currently, technologies such as TOPCon and HJT They offer greater energy efficiency compared to traditional PERC-type modules.
In regions with low solar irradiance, this difference is even more significant. Efficient panels are able to convert diffuse light more effectively.This is common on cloudy days, and it helps maintain more stable production throughout the year. This means generating more energy in the same area, reducing the need for physical expansion of the system and improving the return on investment.
The most efficient modules facilitate the deployment of solar energy projects on smaller rooftops, common in urban areas, expanding access to distributed generation.
Another important strategy for low-irradiation regions is the use of bifacial panels. These modules capture light from both the front and back, taking advantage of radiation reflected by the ground or by light-colored surfaces near the installation.
When applied to light-colored roofs, painted slabs, reflective floors, or elevated structures, double-sided panels can increase the overall system output. This additional benefit, known as the albedo effect, becomes especially valuable in locations with less direct sunlight..
In modern solar energy projects, this technology is no longer an exclusive solution for large power plants and is now also being integrated into residential and commercial systems.
In urban or rural environments with partial shade, trees, chimneys, or roofs with varying slopes, a single panel can compromise the performance of the entire system. Therefore, the use of microinverters and optimizers has become an essential strategy.
These devices allow each panel to operate independently, preventing a drop in performance in one module from affecting the others. In regions with low solar irradiance, this independence reduces losses and maximizes available generation.making solar energy projects more efficient and reliable. Microinverters offer individualized monitoring, facilitating maintenance and rapid fault identification.
The integration of batteries and intelligent management systems represents a significant advancement for solar energy projects in low-irradiation regions. Storage allows for the saving of surplus energy generated during the day for use at night or during periods of higher electricity tariffs.
Management systems automatically decide when to consume, store, or inject energy into the grid. This combination increases energy independence, reduces costs, and protects against fluctuations or drops in supply.This is especially true in locations with variable power generation throughout the day. With the potential for gradual decrease in battery costs and the evolution of control software, this strategy is gaining increasing traction in the Brazilian market.
More than adopting isolated solutions, the key difference lies in integration. Successful solar energy projects are those that combine efficient panels, bifacial solutions, advanced power electronics, and intelligent management., always aligned with the characteristics of the location.
Rodrigo Bourscheidt, CEO of Energy+, a renewable energy technology network, emphasizes that there is no single formula. Each region with low solar irradiance requires specific analysis, considering climate, consumption, and economic viability. Even so, the principle is clear: The right strategy transforms less sun into more efficiency..
As the sector matures, regions with low solar irradiance are no longer seen as limiting factors but as representing new opportunities. The expansion of solar energy projects in these areas contributes to diversifying the electricity matrix, reducing transmission losses, and increasing the country’s energy security. Furthermore, it expands access to distributed generation, strengthens the local economy, and accelerates the transition to a cleaner and more sustainable energy matrix.
Recent experience in the Brazilian market shows that to make projects viable solar energy In regions with low solar radiation, this is a concrete reality.The combination of efficient panels, bifacial systems, microinverters, batteries, and intelligent management redefines the limits of photovoltaic generation.
More than the amount of sunshine, what determines success today is the quality of the project. With strategy, innovation, and planning, even regions with lower solar irradiance can achieve high efficiency, financial return, and energy sustainability., consolidating solar energy as a pillar of Brazil’s electrical future.
Hilton Fonseca Liborio is a copywriter with experience in digital content production and SEO skills. He creates optimized texts for different audiences and platforms, striving to combine quality, relevance, and results. He specializes in the automotive industry, technology, careers, renewable energy, mining, and other topics. Contact and pitch ideas: hiltonliborio44@gmail.com
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