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Microsoft Kirkkonummi Kolabacken Data Center Campus

Kirkkonummi / Masala, Uusimaa, FinlandUnder construction
Evidence
Headline capacity
Not established in published records
Updated
Oct 28, 2026

Microsoft Kirkkonummi Kolabacken Data Center Campus is in Kirkkonummi / Masala, Uusimaa, FI and is a data center campus with under construction status.

Program relationships

Capacity

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

Initial campus constructionUnder construction

2 buildings

By April 2026, first-building facade/interior work and second-building foundations were reported.

Milestones (1)
Earthworks began

2024 · Recorded actual event

Completed · Construction started

Source not linked

Participants

Fortum Oyj

Operator

Sources by role
Microsoft

Developer

Sources by role
Developer (1)
Developer (1)
Developer (1)
Other participants (1)
Municipality of Kirkkonummi

Government authority

Sources by role

Site & development

Buildings in active construction

Actual

2 buildings

Source

Infrastructure & permits

Technical details (1)
Heat reuse

Partially operational

Fortum reported in May 2026 that the heat plants were operating with ambient-air heat pumps and electric boilers. Recovery of waste heat from the Microsoft data centers is planned to begin in phases from 2027, in line with construction and commissioning.

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

Related projects (2)
Microsoft Espoo Hepokorpi Data Center Campus

Under construction · Espoo / Hepokorpi, Uusimaa, Finland

Shared participant: Fortum Oyj · Shared participant: Microsoft · Same market: Uusimaa, Finland

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Microsoft Vihti Palojarvi Data Center Campus

Under construction · Vihti / Palojarvi, Uusimaa, Finland

Shared participant: Microsoft · Same market: Uusimaa, Finland

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