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STACK OSL04 Holtskogen Data Center Campus

Holtskogen, Østfold, NorwayPartially operational
Evidence
Planned critical IT
18 MW
Updated
Oct 28, 2026

STACK OSL04 is the Holtskogen campus east of Oslo, independently registered at 18 MW across multiple facilities and marketed with certified renewable supply. It remains separate from the Oslo colocation assets rebranded as Vaultica, and the profile does not infer that the carve-out changed OSL04 ownership. Customer utilization, private contract terms and unreported project financing remain outside the verified public record.

Capacity

Reported capacity

Design

18 MW

Source

Reported capacity

Planned / design or future potential

18 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

STACK OSL04 is the Holtskogen campus east of Oslo, independently registered at 18 MW across multiple facilities and marketed with certified renewable supply. It remains separate from the Oslo colocation assets rebranded as Vaultica, and the profile does not infer that the carve-out changed OSL04 ownership. Customer utilization, private contract terms and unreported project financing remain outside the verified public record.

Milestones (1)
Project-specific evidence refreshed and reconciled

Aug 29, 2026 · Recorded actual event

Completed · Status changed

Source not linked

Participants

STACK Infrastructure

Developer

Sources by role
Developer (1)

Site & development

Location context

Actual

STACK OSL04 | Holtskogen | Østfold | NO

Source

Location context

Actual

STACK OSL04 | Holtskogen | Østfold | NO

Source

Project location

Actual

Holtskogen, Østfold, NO

Source

Campus buildings

Design

3 facilities

Source

Technical specifications

Renewable energy claim

Actual

100 percent

Source

Additional project facts

Lifecycle status

Actual

Partially operational

Source

Capacity basis

Actual

STACK Infrastructure publishes 18 MW of critical IT capacity for this record boundary.

Source

Lifecycle status

Actual

Partially operational

Source

Capacity basis

Actual

18 MW is the operator published facility design or maximum power boundary; it is not measured tenant utilization.

Source

Operator or developer

Actual

STACK Infrastructure

Source

Current lifecycle

Actual

Operating or in phased operation

Source

Capacity classification

Actual

Design

Source

Capacity basis

Actual

18 MW is the operator published facility design or maximum power boundary; it is not measured tenant utilization.

Source

Customer utilization

Actual

Not publicly disclosed

Source

Source refresh date

Actual

2026-08-29

Source

Infrastructure & permits

Technical details (3)
Electric grid

Operational

18 MW

18 MW is the operator-published facility design or maximum power boundary; it is not measured tenant utilization.

Fiber

Operational

Renewable-power campus with high-efficiency Nordic cooling, snow-melt and rainwater-reuse systems.

Cooling system

Operational

Cooling and resilience architecture is described at facility or campus level; instantaneous draw and tenant utilization remain undisclosed.

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