How clean is the grid behind Colt DC Tokyo III?

Colt DC Tokyo III runs on Japan's grid, which was 477 gCO₂/kWh and 33% clean in 2025 (Ember).

Where is Colt DC Tokyo III located?

Colt DC Tokyo III is in Tokyo, Tokyo, Japan.

Mapped (unverified)colocation

Tokyo, Tokyo, Japan

Colt DC Tokyo III is a mapped data center in Tokyo, Japan. It runs on Japan's grid, which was 67% fossil-fuelled at 477 gCO₂e/kWh in 2025 (Ember).

Reporting by Eric Keller · Updated Jun 17, 2026

Real parent

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Operator

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Grid carbon

477 gCO₂/kWh

Clean electricity

33%

Attribution & capacity confidence:mediumprimary source

Colt Technology Services Group — colocation facility (2 networks present). Source: PeeringDB.

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.

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