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CARTIS

Green Mountain OSL-Hamar Data Center Campus

Hamar, Innlandet, NorwayOperating
Evidence
Planned critical IT
90 MW
Updated
Oct 28, 2026

Green Mountain OSL-Hamar Data Center Campus, also known as Green Mountain OSL-Hamar, is a data center project in Hamar, Innlandet, NO associated with Green Mountain. Three completed 30 MW buildings provide 90 MW operating capacity; two additional 30 MW buildings are planned for a 150 MW site envelope. Single-tenant TikTok campus using renewable hydropower, dual grid supplies, free cooling and heat-reuse-ready systems. Disclosed investment or financing context is recorded with its transaction scope and is not treated as delivered project cost or proof of capacity.

Capacity

Reported capacity

Design

90 MW

Source

Reported capacity

Planned / design or future potential

90 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

Operating facility and documented expansionOperational

90 MW is the operator-published facility or campus design boundary.

Milestones (2)
Green Mountain announced 90 MW TikTok contract

Mar 21, 2023 · Recorded actual event

Completed · Announced

Source not linked
Economic-impact report documented three completed buildings

Mar 26, 2025 · Recorded actual event

Completed · Construction completed

Source not linked

Participants

Green Mountain

Developer

Sources by role
Developer (1)
TikTok

Tenant

Sources by role
Tenant (1)

Capital & incentives

Capital claims and financing records may overlap. Their amounts are not added together.

Capital claims

Reported investment

Transaction scope

9,700,000,000 NOK

Source

Financing records

Investment commitment

NOK 9,700,000,000

Mar 26, 2025

Economic-impact report estimate for three completed buildings; not a debt or equity financing close.

Parties & sources

Green Mountain (Borrower)

Sources (1)

Site & development

Location context

Actual

Green Mountain OSL-Hamar | Hamar | Innlandet | NO

Source

Location context

Actual

Green Mountain OSL-Hamar | Hamar | Innlandet | NO

Source

Operating buildings

Actual

3 buildings

Source

Additional project facts

Lifecycle status

Actual

Operational

Source

Capacity basis

Actual

Green Mountain states that three completed buildings are in operation and together provide 90 MW of capacity.

Source

Lifecycle status

Actual

Operating

Source

Capacity basis

Actual

90 MW facility or campus design capacity.

Source

Infrastructure & permits

Technical details (3)
Electric grid

Energized

Single-tenant TikTok campus using renewable hydropower, dual grid supplies, free cooling and heat-reuse-ready systems.

Cooling system

Operational

Cooling and efficiency claims remain limited to operator-described designs; no water use or delivered load is inferred.

Electric grid

Energized

110 MW gross

Dual-grid total supply supports 90 MW operating IT and a 60 MW optional expansion.

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