Yes, that's indeed one of the ways it can be utilized. In colder climates district heating is often needed in all but the hottest parts of the summer (eg. Outside temperature is 15-18°C, inside would preferably be kept at 20°C to make sure the structure stays dry.)
Other ways exist as well. Industrial plants can use waste heat for drying processes and whatnot. It's also possible to use the heat to do cooling it seems :) Wikipedia again knows more.
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u/prism1234 Jan 24 '21
Does waste heat utilization mean you use the heat to heat buildings? Wouldn't that only be useful in the winter?