This seems like a big (but superficially boring) advance for large industrial plants. Using waste heat to generate power isn’t new, but if the efficiency numbers are to be believed then this should save a lot of energy. We should do this here.

More on the history in an article linked from TFA. It looks like this wasn’t a new idea but was only theoretical before: https://www.futura-sciences.com/en/co2-can-generate-energy-c...