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CARTIS

AirTrunk TOK2 West Tokyo

Tokyo Prefecture, Tokyo, JapanPartially operational
Evidence
Planned / design
110 MW+
Updated
Oct 28, 2026
Utility
Tokyo Electric Power Company

TOK2 is a 110+ MW design campus that opened initial phases exceeding 60 MW in 2024 while phase 2 completion remained under development. AirTrunk TOK2 West Tokyo is located in Tokyo Prefecture, 13, JP and is a data center campus in partially operational status.

Program relationships

AirTrunk Tokyo Platform · Program

Capacity

Total design capacity

Planned / design or future potential

110 MW+

Source

Initial operating capacity minimum

Reported rounded

60 MW+

Not included in reviewed operating IT capacity

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

TOK2 initial operating phasesOperational

Operating tranche confirmed May 2024; exact commissioned capacity not disclosed beyond 'over 60 MW'.

TOK2 phase 2Under construction

1 building

Potential overlap with the opening announcement's initial phases; no independent RFS evidence.

Milestones (5)
AirTrunk announces 110+ MW TOK2

May 16, 2022 · Recorded actual event

Completed · Announced

Source not linked
TOK2 campus construction begins

Nov 17, 2022 · Recorded actual event

Completed · Construction started

Source not linked
TOK2 phase 2 begins

Feb 21, 2023 · Recorded actual event

Completed · Construction started

Source not linked
TOK2 initial phases exceeding 60 MW open

May 14, 2024 · Recorded actual event

Completed · Event type not stated

Source not linked
TOK2 phase 2 tops out after initial opening

Sep 3, 2024 · Recorded actual event

Completed · Status changed

Source not linked

Participants

AirTrunk

Operator

Sources by role
Operator (1)
Operator (1)
Other participants (2)
Daiwa House Industry

Contractor

Sources by role
Contractor (1)
Contractor (1)
Tokyo Electric Power Company

Utility provider

Sources by role
Utility provider (1)

Site & development

Campus location

Actual

West Tokyo, Tokyo Prefecture

Source

Campus land area

Reported rounded

4.6 hectares

Source

Technical specifications

Grid voltage

Reported rounded

66 kV

Source

Power partner

Actual

TEPCO

Source

Additional project facts

Facility code

Actual

TOK2

Source

Opened date

Actual

2024-05-14

Source

Design PUE

Reported rounded

1.15 PUE

Source

Carrier neutral

Actual

True

Source

Phase 2 groundbreaking

Actual

2023-02-21

Source

Phase 2 topped out

Actual

2024-09-03

Source

Phase 2 ready for service verified

Actual

False

Source

Current operating capacity disclosed

Actual

False

Source

Tok1 2026 green loan applies

Actual

False

Source

General contractor

Actual

Daiwa House Industry

Source

Substation infrastructure partner

Actual

Obayashi Corporation

Source

Infrastructure & permits

Technical details (2)
Electric grid

Operational

66 kV

TOK2 high-voltage supply with TEPCO power-infrastructure involvement.

Electric grid

Operational

Obayashi identified in campus infrastructure delivery; asset boundary and ownership require contract review.

Public-source research. Plans may change. See Evidence for sources and qualifications.