Morphit

They’re not converting it back into electricity, this is for industrial process heat. They have 100 units of electrical energy and 98 units go into whatever the industry needs to heat.

Lots of industries use ovens, kilns or furnaces. Mostly fueled by gas at the moment. Using electricity would be very expensive unless they can timeshift usage and get low spot prices. Since they need heat anyway, thermal storage is pretty cheap and efficient.

It’s heat though. They’re turning electricity into heat then moving that heat to where it’s needed, when it’s needed. Making heat from electricity is nearly 100% efficient, and pumping losses for moving fluids are going to be tiny compared to the the amount of heat they can move. They quote the heat loss in storage seperately as 1% per day. It seems reasonable.

Plus it did land on the barge. Most of the debris should be there, though the remaining fuel would have mainly gone overboard. Probably the flight termination explosives also.