United Kingdom

Viridian Solar, a UK-based roof-integrated solar PV specialist, announced new flashing products to seamlessly integrate its solar panels with skylight-style windows made by Keylite Roof Windows.

Scientists in the United Kingdom have compiled a new database of adiabatic compressed air energy storage projects. Using this data, they were able to determine the experience rate and identify the conditions under which the technology would be economically viable. According to their findings, costs have declined at a 15% learning rate since 2013.

The European Commission has launched its first Hydrogen Mechanism call to link suppliers with buyers, while Italian researchers say PV, wind, storage, and electrolyzers can slash island transport emissions by 90% and cut costs nearly one-third.

Previous record from 2011 broken in early November as number of certified solar installations surpasses 203,125 in 2025. New-build properties driving growth with further gains expected when Future Homes Standard comes into force. UK energy secretary describes solar as a “slam dunk” way of cutting household electricity bills.

Loose connections, damaged or faulty wiring among leading causes of solar panel fires, according to new analysis from insurer QBE. Freedom of information requests to UK fire services find increase in number of solar installation fires, with incidents recorded on residential properties.

Swedish heat pump maker Aira unveils new battery energy storage system and inverter range for the residential market. Aira Power Hub inverters and Aira Power Store batteries are marketed as part of a whole home energy management system, initially launching in the United Kingdom and Italy with a German rollout to follow.

Open Climate Fix says its Quartz Solar tool saves Great Britain’s grid operator GBP 30 million ($39 million) per year through more accurate forecasting, which reduces the reserve capacity needed for balancing the electricity system. The non-profit company has used machine learning techniques with satellite, weather and historical generation data to reduce forecasting errors by half.

Elderly consumers targeted by sales staff who promised government grant refunds to cover the cost of solar equipment and maintenance but failed to deliver. More than GBP 3.1 million ($4.0 million) was paid into bank accounts of two now defunct companies between May 2023 and January 2025.

Major milestone for UK solar deployment as 15 CfD-backed projects switch on during the first three quarters of 2025. Further utility-scale deployment is expected, but much will depend on the outcomes in the next two CfD allocation rounds.

UK researchers find that smart, centrally controlled air-source heat pumps could slash peak electricity demand. The technology not only keeps homes comfortable but also boosts grid flexibility and cuts emissions.