The UK grid-scale battery storage market grew 45% in 2025, with 4GWh coming online during the year, bringing total operational capacity to 12.9GWh.

Lennart Hinrichs at TWAICE, discusses how the industry’s approach to battery analytics is changing, as part of our annual Year in Review series.

2025 saw genuinely large-scale BESS projects start construction in Germany, strengthening confidence among stakeholders. But significant challenges remain around grid connection, connection agreements and access to revenue streams, an operator said.

Australia-based battery technology firm Altech Batteries has received a binding conditional funding approval for a sodium-chloride solid-state battery manufacturing facility in Germany.

It’s our first week back to normal service so here’s a roundup of the past few weeks of BESS action in Europe, with projects moving forward in Romania, Denmark, UK, France, Spain, Albania, Germany and Austria.

IPP Zelestra and utility EDP’s recent PPA deal for a solar-plus-storage project in Spain was the first of its kind in Europe and ‘moves the market forward’, a Zelestra executive told Energy-Storage.news.

Finland’s largest BESS to date will need to cope with “especially challenging” operating conditions and stringent and evolving grid code requirements.

It’s been a busy few weeks in the run-up to Christmas in Europe’s BESS project space, with M&A, final investment decisions (FID) and supplier deals in Germany, Belgium, Portugal, Italy, Finland, Romania and the UK totally around 800MW of capacity.

Renewable energy companies Akuo Energy and Voltalia have begun constructing projects in French overseas territories.

Trade association Energy Storage Europe (ESE) has welcomed proposed reforms to European Union (EU) grid connection and permitting processes.