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CARTIS

GreenScale Tonstad Campus

Tonstad, NorwayUnder construction
Evidence
Utility capacity
300 MW
Updated
Oct 29, 2026

GreenScale’s Tonstad campus is in site preparation beside Ertsmyra in Sirdal, Norway. The operator describes a 300 MW peak-demand reservation, not IT capacity, and targets first service in 2028. Its December 2025 electrical concession requires an approved detailed plan before electrical construction and grid works before connection; it is not campus-wide building approval or evidence of energization. Sirdal’s August 2026 memorandum reported unresolved zoning appeals, with no later determination verified in this review. Current title, first-phase IT capacity and the full building-permit position remain unverified.

Capacity

Secured grid power capacity MW

Forecast

300 MW

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

Milestones (2)
Operator announced site-preparation work

Feb 12, 2026 · Recorded actual event

Completed · Announced

Sources (1)
First service target in 2028, not achieved completion

2028 · Forecast / planned record

Forecast · Announced

Sources (1)

Participants

GreenScale

Developer · Operator

Sources by role
Developer / Operator (1)

Site & development

Site location

Reported rounded

One four building campus beside Ertsmyra switchyard; 420,000 m² acquired. Operator gives 4440 Tonstad and 58°40′29.3″N 6°44′55.5″E. Do not create four separate projects.

Source

Land and site control context

Reported rounded

Operator says land acquired; parcel title was not inspected.

Source

Additional project facts

Electrical concession conditions

Actual

The electrical concession requires completion and commissioning by 30 June 2028. The concession holder may apply to extend that deadline. An NVE-approved detailed plan is required before electrical construction. Connection to Ertsmyra depends on necessary works by Glitre Nett and Statnett. The concession does not establish campus wide building approval or actual energization.

Source

Dated planning appeal status

Actual

A Sirdal municipal memorandum dated 18 August 2026 records unresolved appeals concerning the 31 October 2024 amendment to the Ertsmyran zoning plan. The council maintained its decision on 9 July 2026 and referred the appeals to the County Governor on 10 July. This is the status reported in that memorandum; no later determination was verified here.

Source

Reviewed tonstad peak demand scope

Reported rounded

GreenScale’s undated FAQ defines its reported 300 MW reservation as absolute peak demand, with lower usage expected in normal operation. This operator definition is not IT capacity or a measurement of delivered power.

Source

Infrastructure & permits

Technical details (3)
Electric grid

Reported context

Industrial zoning; adjacent high-voltage connection, substation less than 1 km away.

Cooling system

Reported context

Operator promotes climate-enabled free cooling; PUE 1.2 is a design claim, not measured live performance.

Fiber

Reported context

Carrier-neutral fiber and diverse routes advertised; named carriers not established.

Other · Documented

GreenScale Tonstad Campus

Sources (1)

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