390
The announcement didn’t reveal the MWh energy storage capacity of the expanded project. Prior to the expansion it was the joint-largest BESS in the country by megawatts along with a 20MW/20MWh system owned by independent power producer (IPP) Axpo.
EWS’ BESS project has primarily been deployed to help transmission system operator (TSO) Swissgrid keep the grid stable, via the provision of frequency response services to maintain a 50hz frequency.
It is being monetised in the Swiss electricity market by both CKW, part of Axpo, and…