Brian H wrote: That’s why I suggested doing the math. Get the cost of the “add-on”, and you will discover that the price per kwh is HUGE compared to ¼¢.
Wouldn’t waste heat be a problem at some point? If 20% of the energy comes out as useful work, and 80% is lost as heat (I’m just making up numbers), as civilization expands, won’t that waste heat become a serious issue?
