That makes sense.
Except that, apparently, it doesn't. The spent steam still needs to be re-condensed, which requires removing heat from it, and the water that comes out of the condenser is already near boiling. So yes, I guess there is a lot of excess heat in a thermal generating station, whatever its energy source, that is normally going to waste. The question, then, is whether or not there is anything useful to be done with this excess heat. 80 degrees Celsius is still pretty damn warm, if not quite boiling.