Finland / Site
Vihdin datakeskus
Microsoft cloud campus south of Nummela, comprising four buildings in the assessed plan. Construction is documented, with later expansion planned. Approximately 192 MW of planned campus IT capacity is reported in indexed EIA text; operational capacity is unconfirmed.
Statements retain their dates, definitions and development scope. Do not add these rows together.
| Claim / measurement | Scope and status | As of | Evidence and accounting |
|---|---|---|---|
| ≈192 MW IT load | Four-building campus assessed in the EIA Planned · cumulative | 2026-10-07 | Reported claim ↗ Excluded from capacity totals. As_of is the retrieval date of indexed primary-source text, not a confirmed design revision date. Direct PDF access failed. This exceeds 5 MW for the assessed planned campus, without establishing delivered capacity. |
| ≈220 MW Facility power | Campus peak electricity demand in the 2023 EIA programme Planned · cumulative | 2023-05-24 | Estimate claim ↗ Excluded from capacity totals. As_of is the date displayed in indexed programme text. Historical peak-demand estimate, distinct from IT load; current approved demand and grid reservation were not established. |
Microsoft named Vihti as the third campus in its Finnish datacenter region.
Supporting source ↗Date reported in Microsoft's May 2023 community update.
Supporting source ↗Completion of environmental assessment procedure; not evidence of facility operation.
Supporting source ↗Operator and contractor document initial site works; contractor passages disagree between 3 and 4 September, so month precision is retained.
Supporting source ↗Destia continued earthworks.
Supporting source ↗Microsoft reported permits for all three campuses and intended a 2026 construction start.
Supporting source ↗Expected around the turn of the year, followed by commissioning preparation; no operational date confirmed.
Supporting source ↗EIA project boundary, not independently verified land title area.
Source ↗Named property in municipal project announcement.
Source ↗Campus plan; first municipal construction phase comprises one building plus support facilities.
Source ↗EIA developer entity; does not establish legal land ownership.
Source ↗Historical 2023 programme retrieved through indexed text; current installed design unconfirmed.
Source ↗Historical programme proposal; external offtake agreement and implemented system unconfirmed.
Source ↗Public project contact published by Microsoft; no contact attempted.
Source ↗Source attribution does not imply independent verification or permission to reuse images.
Published 2024-02-07 · Retrieved 2026-10-07
ELY project page, updated 5 June 2024: Microsoft 3465 Finland Oy is responsible; approximately 60 ha south of Nummela, between roads 110 and 1; four buildings assessed; national-grid electricity.
Published 2024-06-26 · Retrieved 2026-10-07
Municipality identifies parcel 927-406-5-201 and Hankasalontie 12, 03150 Huhmari. Initial phase comprises one datacenter building and support buildings.
Published Date unavailable · Retrieved 2026-10-07
Operator construction updates identify Rosti business park; Mercury became main contractor in June 2025 and Destia continued earthworks.
Published 2026-04-28 · Retrieved 2026-10-07
Operator identifies three campuses in Espoo, Kirkkonummi and Vihti. First-phase construction expected to finish around 2026–2027, followed by commissioning preparation; second-phase permits obtained and construction intended during 2026.
Published 2022-06-06 · Retrieved 2026-10-07
Microsoft announces Vihti as the third separate, independently functioning, synchronized campus in its Finnish cloud region.
Published Date unavailable · Retrieved 2026-10-07
Live indexed original-PDF text states approximately 192 MW IT capacity for four planned buildings. Direct open and linked open returned internal errors; document publication date was not independently inspected.
Published 2023-05-24 · Retrieved 2026-10-07
Indexed original programme text displays 24 May 2023 and describes approximately 220 MW peak electricity demand, direct outside-air cooling, and exploration of external heat reuse. Direct PDF open failed.
Published Date unavailable · Retrieved 2026-10-07
Contractor confirms Rosti location and ongoing earthworks; page reports bulk earth transport ended in week 40 of 2026. Historical start-date passages differ by one day.
Name: Vihti datacenter project updates; Microsoftin datakeskusalueen kolmas sijaintipaikkakunta on Vihti
Aliases: Vihdin datakeskus
Kind: Vihdin datakeskus; Microsoft käynnistää pääkaupunkiseudun datakeskusalueen toisen vaiheen rakentamisen
Country: Microsoft käynnistää pääkaupunkiseudun datakeskusalueen toisen vaiheen rakentamisen; Microsoftin datakeskusalueen kolmas sijaintipaikkakunta on Vihti
Region: Vihdin datakeskus; Vihdin datakeskustontin esirakentaminen
City: Vihdin datakeskus; Microsoftin datakeskushanke etenee Vihdissä
Metro: Microsoft käynnistää pääkaupunkiseudun datakeskusalueen toisen vaiheen rakentamisen
Address: Microsoftin datakeskushanke etenee Vihdissä
Operator: Vihti datacenter project updates; Microsoft käynnistää pääkaupunkiseudun datakeskusalueen toisen vaiheen rakentamisen
Business Model: Microsoft käynnistää pääkaupunkiseudun datakeskusalueen toisen vaiheen rakentamisen; Microsoftin datakeskusalueen kolmas sijaintipaikkakunta on Vihti
Statuses: Microsoft käynnistää pääkaupunkiseudun datakeskusalueen toisen vaiheen rakentamisen; Vihdin datakeskustontin esirakentaminen
Summary: Vihdin datakeskus; Vihti – Ympäristövaikutusten arviointi; Vihdin datakeskustontin esirakentaminen
Location: Vihdin datakeskus; Microsoftin datakeskushanke etenee Vihdissä
Stable identifier: 60a529fa-6e99-4922-a389-742bf57b1976