UN Climate Change Executive Secretary Simon Stiell stressed the urgent need for a transition to renewables due to the negative impacts of fossil fuel dependence on economies and people. Despite renewables becoming cheaper and faster-to-market, the transition is still too slow, particularly in developing nations that require more support. Stiell emphasized the importance of avoiding further escalation and protecting civilian lives, highlighting the critical role of accelerating the shift to renewable energy sources globally.
Category: Buildings & Electricity
Cut Emissions:
– Enhance Efficiency
– Shift Energy Sources
-
Balcony solar takes US by storm, as 27 states announce new plug-and-play PV laws
Legislators in various states are introducing bills to allow for plug-in solar systems, with some facing opposition from utilities citing safety risks. Advocates argue that the small size of these systems means very little energy will flow back onto the grid. Balcony solar bills in several states are on track to pass, with California potentially being a massive market for this technology. Supporters see plug-in solar as a way to save money and move towards a healthier, greener future. The importance of passing portable solar bills in states is highlighted as a way to increase access to solar energy, with the hope of seeing solar panels on balconies across the country.
-
Indian researchers build transparent perovskite-silicon tandem solar cell with 30.2% efficiency
Researchers at the Indian Institute of Technology Bombay have developed a transparent four-terminal perovskite solar cell with a hole transport layer that enhances efficiency and stability. Incorporating Ion-Spiro HTL in perovskite solar cells improves efficiency, open-circuit voltage, and fill factor by reducing interfacial defects. The cell achieved an overall efficiency of 28.4–30.2% when integrated into tandems with commercial silicon cells, showcasing improved performance. This approach eliminates the need for bandgap-specific engineering and offers a scalable route towards highly efficient perovskite-silicon photovoltaics with enhanced stability and potential for next-generation photovoltaic technologies.
-
Premier Energies unveils India’s first zero-busbar TOPCon solar cell
Premier Energies unveiled India's first zero-busbar (0BB) TOPCon solar cell at Intersolar India, marking a shift from traditional architectures and reducing silver consumption. The new design delivers higher power output, enhances mechanical flexibility, and improves resistance to micro-cracks, ensuring superior performance in Indian climates. Premier Energies aims to strengthen performance economics and sustainability in solar manufacturing by lowering silver usage while enhancing efficiency and durability. The company is investing in scaling up its solar manufacturing capacity and expanding into related areas like inverters and battery systems.
-
400 MW Solar Power Farm Has Huge Battery System Too (Video)
Robert Llewellyn visited a large solar power and energy storage facility in Australia, which generates enough clean electricity for 300,000 homes. Solar power is cheaper to install than new coal or gas power plants and has decreased in cost by 90% in the last decade. The solar farm provides a dual purpose by allowing sheep to graze on the land, providing lease income for farmers. The battery system onsite stores excess electricity for use during cloudy days or at night, solving the intermittency problem. The decreasing costs of solar panels and batteries have made these projects more feasible and environmentally friendly compared to fossil fuel power plants. The section also discusses the negative portrayal of solar power and wind power in mainstream news, highlighting the misconceptions surrounding these technologies and promoting the advantages of clean energy solutions over harmful emissions and health risks associated with coal and natural gas power plants.
https://cleantechnica.com/2026/02/27/400-mw-solar-power-farm-has-huge-battery-system-too-video/
-
UK grid software cuts MV solar connection quotes to 15 minutes
VisNet, a UK-based network monitoring company, has launched an automated platform that allows commercial and industrial rooftop solar developers to receive medium-voltage connection assessments in just 15 minutes. This tool enables project owners to determine online whether connection requests are likely to be approved by network service providers, generating cost estimates and connection offers based on customer-submitted data. Supporting new demand connections of up to 2.5 MVA, the platform aims to reduce engineering and development costs for contractors, developers, and installers. Additionally, the system supports low-voltage applications such as residential rooftop solar, home batteries, and electric vehicle chargers, as network operators face increasing volumes of grid connection requests due to electrification.
-
New model reveals pathway for land-efficient U.S. solar expansion
McGill University researchers utilized deep-learning computer vision to analyze 719 solar projects in the Western U.S., setting a new "land-sparing" benchmark for developers. The study revealed a link between geographic irradiance and land efficiency, showing that sunnier regions and compact system designs result in higher energy density. A global study further emphasized the potential for rooftop solar integration, indicating that targeted policy could make it more cost-effective than ground-mounted systems. These findings underscore the importance of strategic land management and integrating solar into the built environment to help achieve net-zero targets and minimize environmental impact.
-
Solar Power Project Completed On Capped Landfill In Rhode Island
The Coventry Landfill Solar project in Rhode Island, featuring a 5.740 MW solar array, demonstrates the dual-purpose use of landfills for solar power, providing environmental and economic benefits to local communities. Completed by the end of 2025 after the landfill was capped in 2020 using WatershedGeo® ClosureTurf®, the project employed approximately 77 electrical and civil workers, along with 15 part-time support employees, generating an estimated economic benefit of $4.4 million for the town. The solar system can power approximately 600 homes and avoid 3,759 tons of CO2 in year one and 88,545 tons over 25 years.
-
Chinese scientists build ‘ultra-stable’ polymer solar cell with 19.1% efficiency
Researchers from Wuhan University of Technology in China have developed a polymer solar cell with 19.1% efficiency and remarkable stability by blending small-molecule acceptors into polymeric matrices. The incorporation of linearly packed small molecule acceptors disentangled polymeric chains, creating efficient pathways for charge transport and reducing degradation. The resulting devices retained 97% efficiency after 2,000 hours of operation in air, with an extrapolated lifetime exceeding 100,000 hours. This work provides a practical pathway towards commercialization of flexible organic photovoltaics, with various layers including a molybdenum trioxide hole transport layer and a buckminsterfullerene electron transport layer contributing to the cell's success.
-
Construction begins on Karangkates floating solar plant at Indonesian dam
Physical construction has begun on the 100MWac Karangkates Floating Solar Power Plant at Karangkates Dam in Indonesia, a joint initiative between PLN Nusantara Renewables, GD Power Hongkong, and PJT I. This project integrates renewable energy with water infrastructure to optimize dam assets without compromising safety and water management functions. By utilizing floating solar technology on reservoirs, the project helps avoid land acquisition and reduce surface water evaporation, contributing to Indonesia's renewable energy expansion under the national Net Zero Emissions target.