BESS owner-operator Return has put its 100MW/200MWh Antares BESS in the Netherlands into commercial operation, the largest to have reached that stage in the country as far as we know.

BESS owner-operator BW ESS has launched construction on its second large-scale project in Italy in the space of a month, while developers Galileo and Aura Power have progressed portfolios in the country. 

IPP Zelestra and power firm and utility EDP have agreed two new hybrid PPAs in Spain, adding 181MWdc of solar and 462MWh BESS to their existing co-operation. 

Statkraft and Greenvolt Power have signed a 10-year tolling agreement covering 400MW of BESS across two operating projects in Poland.

Northland Power has closed financing on two large-scale battery energy storage system (BESS) projects in Poland.

Fu-Gen has sold a 100MW ready-to-build battery storage project in Finland to Nala Renewables, extending their Nordic BESS pipeline to 275MW.

Update 2 October 2026: The financial impact of the write-down to Wärtsilä’s full-year 2026 is expected to be significantly less than initially communicated.

Spain’s recent proposal for data centres could be the catalyst the country’s energy storage market has been waiting for, argues Ignacio López Martín from developer Capflex Energía.

RWE has taken a final investment decision (FID) on 400MW/1.1GWh BESS in the Netherlands with construction to start in due course, while Giga Storage has started building its 2.8GWh Green Turtle project in Belgium.

Covenergo and Delta Capacity have begun construction on AKKU One, a standalone 125MW/300MWh battery energy storage system (BESS) in Lapinlahti, Finland, with commissioning targeted for the fourth quarter of 2027.