California lawmakers urge CPUC to enforce utility interconnection timelines
A coalition of 18 California legislators has formally urged the California Public Utilities Commission (CPUC) to enforce regulations under “Rule 21” regarding the interconnection of customer-sited solar and energy storage systems.
Saudi Arabia secures financing for 15 GW of new solar and wind capacity
A consortium led by Acwa Power, Water and Electricity Holding Co. (Badeel) and Saudi Aramco Power Co. has secured a $5.9 billion senior debt facility for seven Saudi Arabia renewable energy projects totaling 15 GW across solar and wind.
Indonesia think tank seeks partner for offshore floating solar study
Indonesia’s Institute for Essential Services Reform (IESR) is seeking proposals by Dec. 3 for a preliminary feasibility study on offshore floating solar development in Sulawesi, including techno-economic assessments and regulatory analysis.
Morocco opens tender for 1,000 km UHV transmission line
Morocco is seeking pre-qualified bidders for a 1,000 km ultra-high-voltage alternating current line to transmit about 2 GW between Boujdour and Tensift, with applications due Jan. 15, 2026.
Dominican Republic brings Caribbean’s largest solar plant online
The Dominican Republic has switched on the 162.6 MW Cotoperí Solar complex, developed by Acciona Energía and local investors. It is the largest PV installation in Central America and the Caribbean.
More than 100,000 applications for UK heat pump subsidy
Latest boiler upgrade scheme (BUS) data reveals more than 100,000 applications for heat pump grants have been made since support scheme launched in May 2022. Demand has significantly increased in 2025, and the scheme was expanded in early November to include an air-to-air heat pump grant.
JinkoSolar achieves 34.76% efficiency for perovskite-silicon tandem solar cell
JinkoSolar says it has increased the efficiency rating for its perovskite-silicon tandem solar cells from 34.22% to 34.76%, confirmed by China’s National PV Metric & Testing Center (NPVM).
All-perovskite tandem solar cell with dipolar passivation achieves 30.1% efficiency
Researchers in China have developed a dipolar passivation method that reduces defects and improves charge transport in solar cells based on narrow-bandgap tin lead perovskite. The approach has enabled the fabrication of all-perovskite tandem solar cells with efficiencies of around 30% and enhanced stability,
Historic icons, modern energy: Why heritage buildings need solar roofing
Heritage buildings face mounting pressure to cut carbon emissions, but traditional solar panels often clash with their historic appearance and face public resistance. Building-integrated photovoltaics (BIPV) offer a discreet alternative, blending solar technology into roofing materials and enabling wider adoption across protected sites. As UK policy increasingly supports solar on historic buildings, BIPV presents a scalable solution that reconciles climate action with architectural preservation.
NTPC commissions solar-hydrogen-based microgrid in India
NTPC has developed a standalone solar microgrid system that uses hydrogen as the storage medium to deliver 200 kW of round-the-clock power throughout the year. Designed to replace diesel gensets at off-grid Army locations, the system provides a reliable and sustainable power supply even in harsh winter conditions, where temperatures can drop to –40 C at an altitude of 4,500 meters.
