Lithium-ion companies have come out as the top-rated suppliers on a new long-duration energy storage (LDES) leaderboard, while CO2 Battery company Energy Dome is the highest non-lithium company.

Power firm RWE is about to start building a 400MW/800MWh BESS project in Germany, among the largest in the country to reach the construction stage. In related news, Kyon Energy has connected a 282MWh project to the grid, possibly the largest in the country to reach that milestone.

PV inverter and BESS firm Sungrow has launched its PowerTitan 3.0 battery energy storage model for the European market.

European Union countries deployed record-breaking battery storage capacity for the 12th consecutive year in 2025.

Leading BESS owner-operators across Europe discuss the key trends around the financing and deployment of grid-scale projects, with the segment now the driver of continent-wide deployments according to trade body SolarPower Europe.

Bigger, longer-duration projects and more sophisticated deal structuring are driving the energy storage industry forward, but a lack of common approaches from transmission system operators (TSOs) remains a challenge.

Lenders requirements for contracted revenues for BESS projects in the UK appears to have softened, an executive at investment firm Triple Point said.

More BESS news from across Europe, with ContourGlobal and Alpiq striking sizeable deals in Greece and France, Iberdrola putting projects into operation in Spain, and other project news in Germany, Poland, Denmark and Southeast Europe.

Germany’s four transmission system operators (TSOs) have begun procuring inertia services to help stabilise the electric grid as shares of renewable energy grow.

The global energy storage market is poised for continued expansion in 2026, even as supply chain constraints, regulatory evolution, and emerging applications reshape the landscape, according to Wood Mackenzie.