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.

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.

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.

Saudi Arabia and the UAE have emerged as two of the world’s most prominent energy storage markets, with mega-scale projects announced and moved forward at a staggering pace over the last two years. But what does the next phase look like?

Gore Street Capital has completed a first close for its GS EU Fund SCSp, which will target battery storage investments mainly in the European Union.

BESS Large-Scale Fire Testing (LSFT) has been adopted as part of best practice thinking on safety validation, with at least a dozen companies announcing tests and results and many more expected going forward. It becomes mandatory in the 2026 edition of NFPA 855.

The UK market saw strong interest and activity in 2025 but now appears to be shifting from a development market to one focused on execution, writes Solar Media analyst Charlotte Gisbourne.

Another roundup of European grid-scale BESS project news, led by MORE and Zenobe putting Greece and UK projects into operation, and major project financings/construction starts by Acacia in France, Greenvolt in Hungary and Eco Stor in Germany.

While the UK grid-scale BESS market continues to be among the busiest in Europe, there are still huge questions and plenty work to be done in several key policy areas.

Virtual BESS tolling platform startup Terralayr has raised €192 million (US$223 million), primarily for its own build-own-operate BESS pipeline. CEO Philipp Man spoke to Energy-Storage.news about the funding round and growing its capacity virtualisation and tolling platform.

A staggering total of 18GW/65GWh of large-scale BESS came online in China last month, accounting for a quarter of the total capacity deployed across the globe in 2025.

We hear from IPP Zelestra about its decision not to proceed in Italy's MACSE auction and the auction's wider implications on demand for private tolls.

IPP Neoen will provide Réseau de Transport d’Electricité (RTE) with grid-forming function from a BESS project in Brittany, France.

Tesla and Sungrow continue to top the Battery StorageTech Bankability Ratings Report, which also shows how revenue, profitability and shipments are trending in the industry, writes Solar Media Market Research analyst Joe Hennessy.  

Another busy week of large-scale BESS project news across Europe, led by CountourGlobal putting a 202MW/505MWh BESS into commercial operation in Bulgaria.

The managing director of Bluestar Energy Capital's European BESS platform Noveria Energy gave a Q&A to Energy-Storage.news ahead of the Energy Storage Summit 2026 in London next month.