That is awesome, thanks for introducing something new to learn about. It would be cool, maybe not practical, if someone found a way to use that in tandem with a water based gravity battery. Like send the water up hill into a large shallow basin to collect heat from the sun or be chilled by the environment. Then extract that thermal potential before sending the water to the generators at the bottom of the hill. Wouldn't be useful when the weather is mild, but could help with storage and production during the coldest and hotest times of year.