How clean is the grid behind IIJ Shiroi DCC?

IIJ Shiroi DCC runs on Japan's grid, which was 477 gCO₂/kWh and 33% clean in 2025 (Ember).

Where is IIJ Shiroi DCC located?

IIJ Shiroi DCC is in Shiroi-shi, Chiba, Japan.

Mapped (unverified)colocation

Shiroi-shi, Chiba, Japan

IIJ Shiroi DCC is a mapped data center in Chiba, 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

Internet Initiative Japan Inc. — 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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