Intilion has just tied up with CATL for sodium-ion BESS deployments in Europe, following Alfen’s similar move in July, while Merus Power tells us it is in the process of integrating with the OEM’s new product. 

Finland is the Nordic region’s most-talked-about market for the moment, with project deals and other battery storage development activity from local and international players.  

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.