Microsoft Southern Finland Data Center Region
- Headline capacity
- See constituent sites
- Updated
- Oct 28, 2026
On April 28, 2026, Microsoft announced a decision to proceed with second-phase construction and reported permits at all three Southern Finland campuses. It targeted completion of first-phase construction around the end of 2026 and beginning of 2027, followed by commissioning preparations and a separate opening announcement. This does not establish that the cloud region is open or that second-phase construction had started at every campus. Microsoft Southern Finland Data Center Region is in Espoo / Kirkkonummi / Vihti, Uusimaa, FI and is a program under development.
Constituent sites / phases
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
Milestones (2)
Mar 17, 2022 · Recorded actual event
Completed · Announced
Source not linked2027 · Forecast / planned record
Forecast · Forecast completion
Source not linkedParticipants
Developer
Sources by role
Developer (1)
Developer (1)
- Espoo datacenter project overview · Corroborating
Developer (1)
- Vihti datacenter project overview · Corroborating
Other participants (1)
Contractor
Sources by role
Contractor (1)
- Fortum to invest approximately EUR225 million in waste-heat projects · Jun 14, 2023 · Corroborating
Contractor (1)
- Fortum and Microsoft announce waste-heat collaboration · Mar 17, 2022 · Primary
Capital & incentives
Site & development
Additional project facts
Infrastructure & permits
Technical details (3)
Partially operational
€225 million infrastructure investment
Shared program connects the Espoo and Kirkkonummi campuses to Fortum heat-pump/district-heating infrastructure; Vihti is excluded.
Potential or planned
75 percent
Approximately 75% of recoverable waste heat is expected to be used; this is a thermal-recovery share, not data center efficiency or IT load.
Potential or planned
40 percent of annual network demand
Project could eventually provide about 40% of annual district-heat demand in the service area, which uses approximately 2 TWh per year.
Constituent-site map
Public-source research. Plans may change. See Evidence for sources and qualifications.