French startup offers water heater control to boost PV self-consumption
French startup Ecojoko has introduced a contactor that controls electric water heaters to raise solar self-consumption, with field tests underway since the summer.
EcoFlow launches energy management system providing whole-home backup
Global energy company EcoFlow’s latest product, Gateway, is a wall mounted hardware system that can be installed indoors or outdoors and is compatible with third-party inverters and diesel generators as well as EcoFlow’s own extensive product suite.
Europe’s largest sodium-ion battery installation goes live
Switzerland’s Phenogy has launched a megawatt-hour-scale sodium ion energy storage system at a commercial site near Bremen Airport in northern Germany. With this project, the Swiss manufacturer is making its debut on the European energy storage scene, backed by ambitions to develop fully vertically integrated local manufacturing.
REC leads US residential solar panels as Tesla loses storage share
REC led the US residential solar panel market in the first half of 2025, while Tesla lost share in home batteries and inverters amid supply and policy pressures, according to EnergySage.
Renewables overbuilding, proactive curtailment can reduce Europe’s energy system costs
New research from the Netherlands showed that renewables and short-term storage can meet around 92.5% of Europe’s electricity demand in future energy scenarios, with the remaining 7.5% being satisfied by green hydrogen. The scientists considered Europe as fully self-sufficient with zero import-export of power or hydrogen, with each of the 37 countries included in the modeling having a self-sufficiency rate of at least 80%.
Arbitrage remains leading use case for US grid-scale batteries
Arbitrage has remained the dominant use case for utility-scale batteries in the United States through 2024. However, the share of the cumulative fleet reporting it as their primary application has stayed roughly the same percentage-wise.
Spanish startup offers portable solar-plus-storage generators for irrigation
Spanish startup Nomad Solar Energy and Full&fast have deployed a portable solar-plus-storage system at a Madrid farm to provide off-grid power for irrigation.
Enpal unveils residential heat pump for large heating loads
The German company is introducing its own heat pump with a heating output of up to 16 kW and a maximum flow temperature of 80 C. The system is designed to meet rising demand in large single-family homes and unrenovated existing buildings.
The Hydrogen Stream: Japanese researchers develop low-temperature hydrogen battery
Institute of Science Tokyo researchers proposed a battery with magnesium hydride (MgH2) as the anode and hydrogen (H2) gas as the cathode. Meanwhile, researchers at Chung-Ang University proposed chloride-resistant ruthenium (Ru)-based nanocatalysts for direct electrolysis and hydrogen production from seawater.
BYD unveils 14.5 MWh storage system, world’s largest yet
China’s EV giant has unveiled the 14.5 MWh DC “Haohan” single-unit DC block with record-breaking capacity to challenge next-generation energy storage market.
