http://www.extremetech.com/extreme/211008-ibm-wants-to-cool-data-centers-with-their-own-waste-heat
IBM already pioneered a hot-water cooling system, but with their new developments, they’ve gone one step farther. The Thrive project is dedicated to creating a heat pump that can run on waste heat.
Source: IBM wants to cool data centers with their own waste heat | ExtremeTech