Equinix will occupy a massive datacenter campus near London's M25, investing £3.9 billion ($5.1 billion) in the 85-acre (0.34 square kilometers) Hertfordshire plot close to South Mimms services.

The planning application for the project was filed last year by a company called DC01 UK Ltd . The site will feature three facilities with more than 250 MW capacity across 2 million square feet — making it one of Europe's largest datacenter campuses.

Construction should begin around 2027, Equinix told us, with operations starting three years later, aligning with the site's 2029 grid connection date.

Equinix projects 2,500 construction jobs and 200 permanent positions are to be created. Such massive projects have previously drawn criticism that they offer little in the way of local employment onc

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