Who owns Telefonica Data Centre?

Telefonica Data Centre is owned and operated by Telefónica.

How clean is the grid behind Telefonica Data Centre?

Telefonica Data Centre runs on United Kingdom's grid, which was 217 gCO₂/kWh and 64% clean in 2025 (Ember).

Where is Telefonica Data Centre located?

Telefonica Data Centre is in Slough, United Kingdom.

Mapped (unverified)

Telefonica Data Centre

Slough, United Kingdom

Source: OpenStreetMap

Telefonica Data Centre is a mapped data center in Slough, United Kingdom, operated by Telefónica. DataCentersExposed has documented a 60,365 sq ft footprint at this site. It runs on United Kingdom's grid, which was 36% fossil-fuelled at 217 gCO₂e/kWh in 2025 (Ember).

Reporting by Eric Keller · Updated Jun 14, 2026

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Est. capacity

~10-25 MW

Footprint

60,365 sq ft

Grid carbon

217 gCO₂/kWh

Clean electricity

64%

Region

Slough

Attribution & capacity confidence:mediumprimary source

Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

Overview

source: link

Telefonica Data Centre is a mapped data center in the United Kingdom, operated by Telefónica. Available records put its footprint at 60,365 square feet. Ownership above Telefónica is not detailed in the facts on file, and no operator parent beyond the company itself is listed.

Operator chain

Ultimate parent
Telefónica
Files as
Telefónica
This facility
Telefonica Data Centre

The grid behind this site

source: Ember · Eurostat

Grid carbon intensity

217 gCO₂/kWh

Clean electricity

64%

Fossil electricity

36%

National grid context, not this facility's own metering. Full country picture: United Kingdom data centers.

In the news

source: Google News (local + English)