Telehouse has entered a ten-year power purchase agreement (PPA) with RWE, the UK’s largest power generator, focusing on renewable energy.

The agreement will provide a substantial amount of renewable energy to Telehouse’s London Docklands campus, Europe’s most connected data centre hub, until the end of 2035.

The renewable electricity will be sourced from the London Array offshore wind farm, located in the outer Thames Estuary.

The PPA ensures a long-term power supply for Telehouse and its customers.

Telehouse Europe head of procurement Mushtaq Choudhary stated: “Telehouse is committed to enhancing energy efficiency, promoting green procurement and reducing our carbon footprint and that of our customers.

“Thanks to this PPA with RWE, the electricity purchased for our London Docklands campus will continue to be derived from renewable energy sources, demonstrating our efforts to drive efficiency at our campus and deliver real benefits for our customers.”

The London Array wind farm is operated by RWE and owned by a consortium of Caisse de Dépôt et Placement du Québec, Greencoat UK Wind and Masdar Energy UK. It has 175 wind turbines with an installed capacity of 630MW.

From its opening in 2013 until September 2018, it was the world’s largest offshore wind farm.

RWE supply and trading head of commodity solutions UK, North and South Europe Olaf Lubenow stated: “This power purchase agreement ensures Telehouse and its customers have reliable access to clean, renewable electricity, providing certainty on the robustness of supply.

“We are pleased to support Telehouse also in its decarbonisation efforts as our goal is to advance climate protection in all sectors of the economy with clean energy solutions.”

RWE also recently commissioned two battery energy storage systems (BESS) with a combined capacity of 220MW at its Hamm and Neurath sites.

The facilities can reach their nominal capacity within seconds, providing power for one hour, or 235 megawatt hours (MWh).

The BESS at Hamm, commissioned in December, has a capacity of 140MW (151MWh), while the Grevenbroich-Neurath site has an 80MW (84MWh) capacity. These systems consist of 690 cabinets, each containing eight battery modules.