Twelve photovoltaic storage systems with capacities of 5 kW or 10 kW were included in the comparison, among them several new products, all of which achieved efficiency class A. A new study – also examining efficiency losses when storing electricity from the grid – highlights the importance of highly efficient battery storage. The researchers also took a closer look at the warranty conditions of the devices. March 6, 2026 Sandra Enkhardt From ESS News Fox ESS is the new test winner in the “...

The new residential heat pump system can be configured modularly and requires less than 150 grams of refrigerant, which allows it to be installed indoors. The system integrates with M-Tec’s energy management platform and supports multiple heat sources, photovoltaics, and battery storage. December 5, 2025 Sandra Enkhardt Image: M-Tec From pv magazine Germany Austrian manufacturer M-Tec has presented a new residential propane heat pump that offers a heating capacity of up to 26 kW and is suitabl...

Eco Stor says construction has begun on a 300 MW/714 MWh battery storage facility in Förderstedt, Saxony-Anhalt, now the largest such project under development in Germany. November 5, 2025 Sandra Enkhardt Image: Eco Stor From ESS News RWE briefly held the record for Germany’s largest battery storage facility under construction with its 400 MW / 700 MWh project. Following its groundbreaking ceremony on Tuesday, Eco Stor’s 300 MW / 714 MWh project in Förderstedt, Saxony-Anhalt, has n...

Analysis by pv magazine shows almost 2.1 million battery storage systems (BESS) are now in operation in Germany. The latest figures for this year are 362,537 systems with a power output of around 2.6 GW and a cumulative storage capacity of 4.59 GWh. September 8, 2025 Sandra Enkhardt Image: pv magazine From ESS News The market data register of Germany’s Federal Network Agency (Bundesnetzagentur) lists 2,093,855 battery storage systems with a gross output of 15.24 GW and a usable storage capacit...

Home battery demand was subdued in Germany and Italy in the first six months of 2025 but rose in Austria, France, the Netherlands, and the Czech Republic. One driver was falling prices, with EUPD Research reporting an average €711 ($833)/kWh in the first half of the year. July 23, 2025 Sandra Enkhardt Image: EUPD Research From ESS News Demand for residential battery storage systems with up to 20 kWh of capacity remained stable in Europe in the first half of 2025. However, the picture is mixed....