HackerTube / Video
The Energy Vault is a Dumb Idea, Here's Why
Adam Something

Adam Something argues in four minutes that gravity batteries like Energy Vault, which lift concrete blocks with cranes, are a poor energy storage idea. He draws on a longer Thunderf00t debunk.
HN cites it as the go-to debunk when gravity storage projects appear, usually by commenters who think the idea is a dud.
6 Hacker News mentions · 2022–2026