A busy week of grid-scale BESS project news from Germany, with numerous development, project, optimisation and tolling partnerships announced.

Chinese-based OEM Sungrow will build a PV inverter and battery storage manufacturing facility in southwest Poland, its first outside Asia.

Europe’s energy storage market has hit a turning point. What was once a scattered, early-phase market featuring pilot projects and daring developers has swiftly evolved into a dynamic, capital-intensive infrastructure sector, writes Wood Mackenzie research associate Cecilie Kristiansen.

That was the view of Søren Juel Hansen, energy storage director at Nordic Solar, when asked by Energy-Storage.news about the role of transmission system operators (TSO) in the industry. 

System integrator Fluence saw revenue of US$475.2 million in the last quarter of 2025, while its net loss grew around 10% to US$62.6 million.

A 100MW/200MWh BESS project in Estonia has been inaugurated by Baltic Storage Platform (BSP), a joint venture (JV) between Baltic developer Evecon, French independent power producer (IPP) Corsica Sole and investment manager Mirova.

While steps are being taken, Spain still lacks the market mechanisms and regulatory framework for large-scale energy storage.

Power firm Uniper has entered into a conditional supply contract with organic solid flow battery company CMBlu Energy for the delivery of at least 5GWh of its technology.

By the end of December 2025, China’s cumulative installed capacity of new energy storage technologies including lithium-ion reached 144.7GW, representing an 85% year-on-year rise.

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.