Since 2020, Meta’s hyperscale data center — spanning 50,000 square meters on an industrial estate on the edge of the city — has been pushing warm air generated by its servers into the district heating network under Odense. That heat is then dispersed through 100,000 households hooked up to the system, with Meta providing enough heat to cover roughly 11,000.
I think it could work for some college campuses too? I know there are a lot that use (used?) centralized steam heating and have a lot of that infastructure to pump the steam around still in place