That would be awesome, any idea where you heard that, I’ve read other sodium based technologies have ~65%

I didn’t see anything about round trip efficiency. I’ve heard that’s a big downside so it might make energy storage a hard sell.

You mean like ores like copper, iron, rare earths that kinda thing. There are seems of minerals that are actually meteorites that have collected in certain spots on a glacier. Haven’t heard anything about other large deposits but usually you would need to do all kinds of geological surveys to find that stuff and since most places are covered in 1mile+ of ice it’s near impossible.

When you say resources what resources are you referring to specifically?