RWE has agreed an eight-year power purchase deal to supply Global Switch’s London Docklands data centre with electricity from the Brechfa Forest West onshore wind farm.
The company said the agreement will run from January 2026 to 2033 and cover 70GWh of clean power a year.
It added that the Welsh project was commissioned in 2018 with 28 turbines and a capacity of 57.4MW.
Ulf Kerstin, chief commercial officer at RWE Supply & Trading, said: “In view of the ongoing digitalisation and the increasing use of artificial intelligence in almost all areas of life, the number of data centres and their energy requirements are growing.”
He added: “Some data centre operators are already relying on the use of low-carbon electricity from RWE, and we are delighted to have gained Global Switcha as another partner.”
Peter Domeney, chief operating officer at Global Switch, said: “Our agreement with RWE is a critical next step on our journey to purchasing 100% renewable energy by 2030, and to the setting of new standards for what a sustainable, environmentally-conscious data centre can look like.”
Domeney added: “It’s an agreement that brings together the forests of Wales and the most powerful, most advanced AI and high performance compute deployments in the world.”
Global Switch’s London site has 224MVA of secured power and is undergoing densification and expansion.
Last year, it was selected by CoreWeave to host one of Europe’s largest deployments of NVIDIA H100 and H200 GPUs and the company’s liquid cooling showcase.
Global Switch is targeting 100% renewable energy by 2030 and annualised power usage efficiency of 1.2 across its European sites.
RWE is investing in offshore and onshore wind, solar and battery storage alongside its trading business.