My old University has been powered by Geothermal for 11 years now, and they produce quite a bit more than they need, so they sell excess to the hospital next door.

There are other geothermal wells on campus (not as deep or hot) just for hot water, that are used to flow in pipes directly under large staircases (campus is built on a hill) and sidewalks to keep them clear in winter, and are also used with large heat pumps to heat and cool all buildings on campus. Those have been used since the 60's..

Warning, PDF's

https://chptap.ornl.gov/profile/174/OIT_ORC-Project_Profile....

https://www.osti.gov/etdeweb/servlets/purl/895238