Hacker News new | ask | show | jobs
by 15457345234 868 days ago
> 1000kg of lead at 1500m high is about 4kWh of potential energy. 1000kg of Lead-Acid batteries is about 25 kWh of potential energy. I suppose you could put the batteries on a cable for the extra 4kWh but I suspect the complexity isn't worth it.

That's just so well said. Should be the top comment every single time this dumb idea is surfaced.

I'm convinced now people are pulling stunts like this just to make renewables look bad.