I know of a building in NYC that used the water from the data center (lots of mainframes) to heat the offices in the building next door. Mostly a closed system as I understand it.
In the winter it was great for them. In the summertime they tried some scheme to use the hot water to generate supplimental electricity for the AC systems. Didn’t work out.
By 2012 the whole building has been renovated and no longer has that model. The datacenter were moved out of the area post 9/11.
Latest Answers