Stay current on solar policy, grid-scale projects, new solar technology deployments, and industry trends.
Posted by SolarPolicy · 57 replies
The U.S. Solar Investment Tax Credit remained at 30% through 2025 under the Inflation Reduction Act, and domestic content bonus adders continued to incentivize manufacturing in the United States. Several states expanded or reformed net metering policies, with California's NEM 3.0 reducing export credits but spurring significant battery storage adoption. The European Union advanced its Solar Energy Strategy, targeting 740 GW of installed solar capacity by 2030. India surpassed 100 GW of cumulative solar capacity in 2025, driven by aggressive auction programs and manufacturing subsidies.
Posted by AgriSolar · 43 replies
Agrivoltaics is the co-location of solar panels and agricultural activities on the same land, allowing both solar energy generation and crop production or livestock grazing simultaneously. Research has shown that shade from solar panels can reduce crop water requirements by 14-29% while maintaining yields for shade-tolerant crops like lettuce, tomatoes, and herbs. For utility companies facing land use challenges, agrivoltaics offers a path to solar deployment that also supports rural farm economics. The U.S. Department of Energy has invested significantly in agrivoltaics research since 2021.
Posted by FloatingSolar · 38 replies
Floating solar installations on reservoirs, ponds, and lakes have grown rapidly in Asia, particularly China, South Korea, and Japan, and are expanding in Europe and North America. The cooling effect of water beneath the panels improves efficiency by 5-15% compared to ground-mounted systems in equivalent climates. Floating solar also reduces water evaporation from reservoirs, which is a significant co-benefit in water-stressed regions. Challenges include higher installation and maintenance costs, corrosion concerns, and potential impacts on aquatic ecosystems. Single installations now exceed 2 GW in China.
Posted by PerovskiteNews · 49 replies
Perovskite solar cells have achieved certified efficiencies above 26% for single-junction cells as of 2025, closing in on the theoretical limit of crystalline silicon. The major remaining challenges for commercialization are long-term stability in heat and humidity and the use of lead-based compounds that raise environmental concerns. Perovskite-silicon tandem cells combining the strengths of both materials have demonstrated over 33% efficiency. Companies like Oxford PV, Saule Technologies, and several Chinese manufacturers are racing to bring perovskite modules to commercial scale.
Posted by AIandSolar · 35 replies
Artificial intelligence is being applied to solar energy in multiple ways. Predictive maintenance uses sensor data and machine learning to detect panel failures before they cause significant energy loss. AI-driven weather forecasting improves day-ahead solar generation predictions for grid operators. Autonomous tracking algorithms optimize the angle of single-axis trackers beyond simple astronomical calculations. Virtual power plants using AI can aggregate thousands of residential solar-plus-storage systems and optimize their collective behavior for grid services.
Posted by USAManufacture · 51 replies
The Inflation Reduction Act's domestic content provisions and manufacturing credits have spurred significant investment in U.S. solar manufacturing. By 2025, announced U.S. solar module manufacturing capacity exceeded 50 GW per year, up from under 10 GW in 2022. Companies including First Solar, Qcells, and REC Silicon have built or expanded U.S. facilities. However, a significant portion of upstream polysilicon and wafer production still relies on international supply chains. Fully domestic solar supply chains remain a multi-year goal given the capital intensity required.
Posted by GridIntegration · 42 replies
High solar penetration creates a duck curve phenomenon where midday solar generation can exceed demand, requiring dispatchable resources to ramp down, then ramp up sharply in the evening as solar output drops. Grid operators manage this through demand response programs, battery storage dispatch, curtailment, and increased interconnection with neighboring regions. Inverter-based solar and storage resources now provide synthetic inertia and grid-forming capabilities. California has achieved 100% renewable generation on multiple days by 2025 through careful grid management.
Posted by StorageTrends · 33 replies
The combination of solar and battery storage has become the dominant new-build energy technology globally, surpassing standalone solar in many markets. IRA incentives treat standalone storage as eligible for the Investment Tax Credit, dramatically improving project economics. Lithium iron phosphate battery chemistry has become standard for utility-scale storage due to its improved safety profile and cycle life. Duration is trending longer, with 4-8 hour storage systems increasingly common as they better address the evening demand peak. Iron-air and other long-duration technologies are in pilot deployment.
Posted by PropertySolar · 28 replies
Studies by Lawrence Berkeley National Laboratory consistently show that homes with owned solar installations sell for a premium, averaging $3-4 per watt of installed capacity, or approximately $9,000-$15,000 for a typical residential system. The premium varies by market, with solar adding more value in states with high electricity rates and strong incentives like California, Massachusetts, and New York. Leased solar systems are more complicated, as buyers must qualify to assume the lease or the seller must buy out the contract at sale. Appraisers are increasingly trained to account for solar value.
Posted by FutureSolar · 61 replies
Several solar technologies are expected to reach meaningful commercial scale by 2028. Perovskite-silicon tandem modules are the most anticipated, with multiple manufacturers projecting commercial availability at competitive prices by 2026-2027. Building-integrated photovoltaics with solar cells embedded in roofing tiles, facades, and glass are advancing through companies like Tesla Solar Roof and GAF Energy. Organic photovoltaics offer potential for flexible, low-cost applications on surfaces unsuitable for rigid panels. Concentrating solar power with thermal storage continues to advance for utility-scale baseload applications.
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