Microsoft Espoo Hepokorpi Data Center Campus

Espoo / Hepokorpi, Uusimaa, FinlandUnder construction

Headline capacity: Not established in published records
Updated: Oct 28, 2026

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

Program relationships

Microsoft Southern Finland Data Center Region · Program

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

Construction began in September 2024; later Microsoft updates identify a second building start.

Milestones (2)

Campus construction began

Sep 2024 · Recorded actual event

Completed · Construction started

Source not linked

Second-building construction announced as starting

May 2026 · Recorded actual event

Completed · Construction started

Source not linked

Participants

Fortum Oyj

Operator

Sources by role

Operator (1)

Fortum has started heat production at two large data-centre sites · May 27, 2026 · Corroborating

Operator (1)

Fortum to invest approximately EUR225 million in waste-heat projects · Jun 14, 2023 · Primary

Microsoft

Developer

Sources by role

Developer (1)

Microsoft Finland datacenter community hub · Primary

Developer (1)

Espoo datacenter project overview · Corroborating

Developer (1)

Vihti datacenter project overview · Corroborating

Other participants (1)

City of Espoo

Government authority

Sources by role

Government authority (1)

Espoo datacenter project overview · Primary

Site & development

Construction start

Actual

2024-09 month

Source

Second building start reported

Actual

2026-05 month

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 Kirkkonummi Kolabacken Data Center Campus

Under construction · Kirkkonummi / Masala, 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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