3 ms·
Batteries are expensive. Iron is abundant and cheap, and these seem much less difficult/costly to build than to create a dam, for example. It also seems like i
by wcarron 6y ago
Batteries are expensive. Iron is abundant and cheap, and these seem much less difficult/costly to build than to create a dam, for example.
It also seems like it can make use of existing infrastructure and save money there.
- fastball 6y agoI don’t think the expense of other solutions justifies the abject inefficiency of this one though.