National Grid’s Didcot upgrade to connect data centres and battery storage

Friday 21 Nov 2025
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The Didcot upgrade will add 650MW of battery connections and SF6-free switchgear to support Oxfordshire’s digital growth.

National Grid has started upgrading its Didcot substation in Oxfordshire to connect new data centres and battery energy storage projects to the transmission network.

The site, located beside the former Didcot A coal station and close to the UK’s first AI Growth Zone at Culham, will play a central role in supporting regional digital expansion and boosting grid capacity.

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