Wales first part of UK to mandate solar panels on new buildings
Updated building regulations will effectively mandate solar for domestic and commercial buildings in Wales from early 2027. The new rules come ahead of England’s Future Homes Standard, which is also expected to effectively mandate rooftop solar for new builds.
Volkswagen launches first large-scale battery storage project in Germany
Volkswagen has connected its first 20 MW/40 MWh stationary storage system in Salzgitter, Germany, marking the start of its plan to integrate battery production, storage, and energy trading within a single corporate structure.
Netherlands hits record electricity production and exports in 2025
The Netherlands set a record in 2025, generating 132 billion kWh of electricity, up 10% from 2024, with renewables supplying 49% of output and exports rising 25% to 30 billion kWh.
Gas-fired electricity two to three times costlier than renewable backups
A study by Forum Ökologisch‑Soziale Marktwirtschaft (FÖS), commissioned by Green Planet Energy, says electricity from gas plants could reach €0.67 ($0.78)/kWh, largely due to externalized costs, while renewable-based backups remain far cheaper.
Water-spray cooling can improve PV module efficiency by 28% in arid environments
An Algerian research team has developed a smart water-spray cooling system for PV panels that activates only when temperatures exceed a set threshold, boosting efficiency while minimizing water use in desert conditions. The system raised power output and reduced module temperatures, offering similar efficiency to continuous cooling but with far lower water consumption, pump operation, and costs.
‘Battery Atlas 2026’ maps Europe’s cell, pack and battery manufacturers
The “Battery Atlas 2026” report shows consolidation in Europe’s battery market. More than 2,000 GWh of cell production capacity was announced in 2023, but the realistic forecast for early 2026 is around 1,190 GWh, including approximately 673 GWh led by Asian companies.
Midsummer secures second order for CIGS production line equipment
Swedish thin-film solar manufacturer Midsummer has secured its largest-ever order for production equipment, covering a complete solar cell factory. It follows an initial order in May 2025 for a 15 MW line producing thin-film copper, indium, gallium and selenide (CIGS) solar cells.
Thermocold debuts air-to-water heat pump for commercial buildings
The new product line covers 124–644 kW in heating and 128–632 kW in cooling, operates down to -15 C, and supports various configurations with R454B or R410a refrigerants.
Jackery introduces SolarVault 3 series of residential solar storage solutions in the Netherlands
Two models in the series are designed to capture up to 4000 W of solar input with four independent MPPTs, while the third model – the SolarVault 3 Pro Max AC – is an AC-coupled solar storage solution that allows households to add battery storage without rewiring. The model is particularly suited to regions where net metering schemes are being phased out.
Key takeaways from Italy’s Key Energy trade show
Key – The Energy Transition Expo was held last week in Italy, featuring 1,065 exhibitors and 530 buyers. The event focused on energy-as-a-service and agrivoltaic projects, with operators saying agriPV standardization should be reached by 2030-32. Italian Energy Minister Gilberto Pichetto Fratin told pv magazine that coal and gas are strategic assets, noted that the “PV sector is maturing,” and urged the European Union to coordinate on gas storage and supply chains for modules and storage solutions.
