District heating
A network piping waste heat to warm nearby buildings; a primary outlet for data-center heat reuse in Europe.
Current numbers
up to ~80%share of data-center waste heat recoverable when warm water is reused for space/district heating
30+ DCs / 16 providersdata centers connected to Stockholm Exergi Open District Heating; ~SEK 2M/MW/yr heat revenue
~113 GWhheat recovered via Stockholm Exergi Open District Heating in 2024 (~11,000 apartments' annual heat); platform connects 30+ DCs across 16+ providers