How clean is the grid behind 西東京データセンター 1号棟?

西東京データセンター 1号棟 runs on Japan's grid, which was 477 gCO₂/kWh and 33% clean in 2025 (Ember).

Where is 西東京データセンター 1号棟 located?

西東京データセンター 1号棟 is in Tokyo, Japan.

Mapped (unverified)

Data center data center, Tokyo, Japan

Tokyo, Japan

西東京データセンター 1号棟 in Tokyo, Japan is a mapped facility. DataCentersExposed has documented a 48,594 sq ft footprint at this site. It runs on Japan's grid, which was 67% fossil-fuelled at 477 gCO₂e/kWh in 2025 (Ember).

Reporting by Eric Keller · Updated Jun 14, 2026

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Real parent

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Operator

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Est. capacity

~5-20 MW

Footprint

48,594 sq ft

Grid carbon

477 gCO₂/kWh

Clean electricity

33%

Region

Tokyo

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

data center

The grid behind this site

source: Ember · Eurostat

Grid carbon intensity

477 gCO₂/kWh

Clean electricity

33%

Fossil electricity

67%

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

In the news

source: Google News (local + English)