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Microsoft’s Heat Powers Espoo Homes

hs.fi · 13 May 2026
Microsoft’s Heat Powers Espoo Homes
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Why this is here: Each heat pump delivers the equivalent heating power of approximately 2,000 typical Finnish single-family home air-source heat pumps.

Fortum installed sixteen heat pumps at a facility in Espoo, Finland, to capture waste heat from a Microsoft data center. The pumps, roughly the size of vans, each have the capacity of about 2,000 standard home air-source heat pumps. Currently, the pumps generate enough heat for roughly 70,000 homes.

Fortum plans to add at least sixteen more pumps to the facility in Hepokorpi. Espoo’s district heating emissions have fallen sharply in the last decade, and this project aims to continue that trend.

The article does not specify how quickly this heat will reach homes, or how widespread the coverage will be across Espoo. The project continues as Fortum expands capacity at the facility.

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