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UK’s largest grid-connected battery goes live

Lakeside Energy Park’s 100MW battery storage facility, developed by TagEnergy and connected by National Grid at the Drax substation, has become the UK’s largest transmission-connected battery

Lakeside Energy Park’s battery storage facility, developed by TagEnergy and now connected to the National Grid at North Yorkshire’s Drax substation, is the largest of its kind in the UK.

With a capacity of 100MW, the newly energised facility marks a major step forward in supporting Britain’s transition to clean energy.

The project was completed by National Grid in partnership with Omexom, who modified the Drax substation to safely accommodate the new power flows.

Upgrades included busbar extensions, enhanced protection and control systems, and a new operational tripping scheme – all designed to ensure secure operation of the grid as clean energy capacity grows.

The Drax substation, originally constructed to serve a coal plant in the 1970s, now hosts the nation’s largest biomass power station and the Eastern Green Link 2 superhighway, set to bring clean energy from Scotland by 2029.

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