Visa London is a data center operated by Unknown in London, GB. The facility is currently operational. It sits in the London data-center market on the NGESO grid, which DC Hub's Data Center Power Index currently rates AVOID, with an estimated 201.6-month time-to-power. Operators should weigh interconnection risk here — the market screens constrained on grid headroom and time-to-power.
Changes DC Hub has recorded to this facility’s record, newest first.
Data Center Power Index verdict for London — the market this facility sits in.
Full DCPI breakdown →DC Hub analyst read on London — the market this facility sits in (full deep-dive →).
London's data center market is operationally mature but severely constrained for new capacity. The tracked estate spans 916 MW across 462 facilities, with Digital Realty 20 facilities, Equinix 17, and DataBank 16 anchoring the supply. The market has attracted recent brownfield redevelopment interest—Kao Data acquired a West London site for development, and planning approval was granted for a 50,000 sqm facility targeting 48 MW of IT load. However, the DCPI metrics reveal why growth capital remains cautious: excess-power stands at just 16/100, paired with a constraint score of 77/100, creating a structural mismatch between available grid capacity and buildable space. The AVOID verdict is unambiguous for acquisition-focused investors. A constraint score of 77/100 signals that grid infrastructure and planning headroom represent genuine bottlenecks—not theoretical risks. The excess-power…
Published DC Hub data for this location.
DC Hub tracks 86 operating generating units totalling 3,123 MW within about 50 km of London, GB. Generation mix shapes both carbon profile and interconnection options for a site at this location.
Source: Global Energy Monitor unit inventory, operating units only. Counts are units, not plants.
Comparable facilities in London tracked by DC Hub — compare power, operators, and grid context across the market.
get_facility slug="unknown-visa-london-650ecc12" (endpoint https://dchub.cloud/mcp) for the full cited record. Connect:
https://dchub.cloud/connect