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.
see #52
I'm always reading something about them trying to figure out how to use waste heat. This isn't all tree hugger stuff, it's often about improving efficiency to cut costs. It also has environmental benefits and conserves limited energy resources, so it's win win all around. That certainly isn't always the case if it's some ridiculous government mandated program though.