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Tomakomai SoftBank Group 001 — 300 MW under construction

SoftBank Corp.

Tomakomai, Japan

Tomakomai SoftBank Group 001 is a colocation data centre operated by SoftBank Corp. in Tomakomai, Japan, in the Hokkaido market.

Who operates Tomakomai SoftBank Group 001?
SoftBank Corp..
Where is Tomakomai SoftBank Group 001?
Tomakomai, Japan, in the Hokkaido market.
What is the capacity of Tomakomai SoftBank Group 001?
300 MW under construction.

Project tracker

300 MW under construction

Construction figure, corroborated by more than one source or stated by the operator.

300 MW under construction in Japan, which has 1,717 MW live today, 2,834 MW under construction, 534 MW planned and 5,482 MW of total potential at full buildout.

The country today · Japan

Live
1,717 MW
Under construction
2,834 MW
Planned
534 MW
Total potential
5,482 MW8% of pipeline modelled

Timeline

  1. Groundbreaking

    Tomakomai SoftBank Group 001 — broke ground

    On April 15, 2025, a traditional groundbreaking ceremony was held at the construction site of the AI data center, which is expected to grow into one of Japan’s largest.

    Source: softbank.jp

Coordinates

Position

42.68, 141.74

Location precision

Approximate

Beyond the location

DC Atlas tracks the grid connection behind data centres across 65 countries — who supplies the power, the market it sits in, and what is being built next.

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