Who owns Starwood House?

Starwood House is owned and operated by Tesco.

How clean is the grid behind Starwood House?

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

Where is Starwood House located?

Starwood House is in Hertfordshire, United Kingdom.

Mapped (unverified)

Starwood House

Hertfordshire, United Kingdom

Source: OpenStreetMap

Starwood House is a mapped data center in Hertfordshire, United Kingdom, operated by Tesco. DataCentersExposed has documented a 65,766 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

~10-30 MW

Footprint

65,766 sq ft

Grid carbon

217 gCO₂/kWh

Clean electricity

64%

Region

Hertfordshire

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

Starwood House is a mapped data center in the United Kingdom operated by Tesco. Records describe it as a Tesco data center, with a reported footprint of 65,766 square feet. No parent above Tesco is identified in available records.

Operator chain

Ultimate parent
Tesco
Files as
Tesco
This facility
Starwood House

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)