Essentially yes, they also get efficiencies from heat exchangers too on the way in and out: “The new Zhangjiakou plant does away with fossil fuels, using advan

Essentially yes, they also get efficiencies from heat exchangers too on the way in and out: “The new Zhangjiakou plant does away with fossil fuels, using advances in supercritical thermal storage, supercritical heat exchange, high-load compression and expansion technologies to boost system efficiency.”