Pure Data Centers Group (Pure DC), one of the fastest-growing hyperscale cloud and AI infrastructure platforms across Europe and the Middle East, has completed the installation of the third and final power transformer at its 90 MW LON01 data center campus in North London.

The Third Transformer Completes Dedicated Campus Power System

The 75MVA Hitachi transformer is the final major component in a three-transformer installation that brings the substation's total capacity to 150MVA. LON01 is designed to deliver a next-generation, closed-loop, liquid-cooled data center capable of supporting high-density AI inference and cloud workloads.

The new transformer will support a stable and reliable power supply to the campus's B1 and B2 buildings, with dedicated ductwork already in place for the connection to B2. Energisation is planned for later this month. Once energised, the transformer will complete the dedicated power system serving the campus.

A 1,000-Tonne Gantry Solution in Place of a 500-Tonne Crane

Installing the transformer required an engineered solution to an unusually complex lifting challenge. Restricted space around the live LON01 substation meant that a conventional 500-tonne crane could not be deployed.

Instead, the project team designed and implemented a specialist gantry system with a lifting capacity of 1,000 tonnes, enabling the transformer to be moved safely and precisely into its permanent position.

The transformer was lifted into position in a four-hour operation involving Pure DC's project team, MGE Group, logistics partners and specialist suppliers. The tightly controlled lift followed extensive preparation and coordination to manage the restricted site conditions and complete the work safely alongside existing infrastructure.

An 18-Month Journey from Colombia to North London

The installation was the culmination of an 18-month programme that began with manufacturing in Colombia in March 2025. Following completion of factory testing in June 2026, the transformer travelled by sea to the UK before a carefully coordinated final journey to the campus.

The operation required detailed route and logistics planning, road closures and local authority approvals.

A Living Wall Alongside Brent Reservoir

Beyond the power infrastructure, the campus has an environmental feature planned. After completion of B2, LON01 will be home to one of the world's largest living walls.

Over 750,000 plants will wrap around B2 to reduce noise and air pollution, as well as encourage biodiversity of insects and birds next to Brent Reservoir's Site of Special Scientific Interest (SSSI).

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