rooftop solar

The new series features single- and three-phase systems with scalable LFP battery integration. Designed for rapid whole-house backup and VPP applications, the new product delivers up to 89.6 % round-trip efficiency, according to the manufacturer.

The Chinese manufacturer said its new rooftop solar module offers 455–475 W power, 22.8–23.8% efficiency, 96-cell double-glass design, and IP68 protection.

The Korean manufacturer has expanded its Therma V R290 heat pump line with three indoor unit options to improve installation flexibility. The new products are designed to deliver heating performance at ambient temperatures as low as -28 C and domestic hot water output of up to 75 C.

In 2025, back-contact solar modules from Aiko Solar and Longi accounted for more than 50% of the Swiss market, driven by strong demand for high-efficiency rooftop PV systems, according to a new report by Eturnity and the Bern University of Applied Sciences.

Sigenergy has launched a 166 kW IP66-rated inverter for C&I solar and storage offering nine MPPT trackers and flexible AC/DC connections. The launch coincided with the opening of its Nantong Smart Energy Center, a 136,000 m² facility for R&D, manufacturing, and global delivery.

In a new weekly update for pv magazine, Solcast, a DNV company, reports that February saw a sharp divide in Europe’s solar conditions. Northeastern regions experienced clear, cold weather with irradiance 20% above average, while western and southern Europe endured persistent storms and widespread irradiance deficits.

Fire caused by an electrical fault from an overheated arcing cable hit the solar panels at Europa Point Stadium in Gibraltar. Firefighters contained and extinguished the blaze within 20 minutes.

Heat pumps are increasingly used for domestic hot water in Europe due to their efficiency and compatibility with solar power, but their lower operating temperatures can create conditions where Legionella pneumophila may grow if systems are poorly designed. Proper hydraulic design, temperature control, and periodic thermal disinfection ensure both high efficiency and safe, hygienic operation.

The European Court of Auditors says in a new report that EU policies supporting energy communities are progressing slowly and that the bloc’s goal of establishing one renewable energy community in every municipality with more than 10,000 residents by 2025 is unlikely to be met.

The Chinese manufacturer said its new back-contact module delivers up to 545 W and over 25% efficiency in a compact rooftop format for residential, C&I, and off-grid applications.