QuoteAlan - The only way for heat to get out of the 1MW test facility was thru a single vent in the roof that had a broken fan, complete with spider webs. Documented, photographed and entirely inadequate as a heat exhaust solution for the 1MW system. The IR images are sadly very telling. There was 20kW of heat in that facility at most.
One could one-pass city water thru a HX and to the POTW. A 2" pipe/100GPM/40°ΔT you do the math!