SSE’s largest battery project has reached a significant construction milestone, with the arrival of battery units to its Monk Fryston site in North Yorkshire, England.

The 320MW/640MWh battery energy storage system (BESS) project is over six times the size of SSE Renewables’ operational 50MW/100MWh battery in Salisbury and more than double the size of its two other 150MW/300MWh BESS sites in construction at Ferrybridge and Fiddler’s Ferry, both also in Yorkshire. When complete Monk Fryston BESS will be one of the UK’s largest operational battery storage sites.

Installations are expected to continue over the coming months with the project expected to be fully operational in early 2026.

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