Gravity Could Solve Clean Energy’s One Major Drawback

https://www.wired.com/story/energy-vault-gravity-storage/

"A fully-sized version of the tower might contain 7,000 bricks and provide enough electricity to power several thousand homes for eight hours... Every facility will require the construction of a new building, brick press that can churn out a new block every 15 minutes... It’s waste product. We can build these brick machines in four months, we can build 25 to 50 of them,” says Piconi"

Related:

Korea Zinc backs storage developer Energy Vault in green push
https://www.reuters.com/article/korea-zinc-renewables-energy-vault/korea-zinc-backs-storage-developer-energy-vault-in-green-push-idUSL4N2TK0SY?utm_source=reddit.com

'Ocean battery' targets renewable energy dilemma

https://techxplore.com/news/2022-01-ocean-battery-renewable-energy-dilemma.html

The world’s first "Infinity Train" can recharge itself. With gravity?

https://interestingengineering.com/infinity-train-recharge-gravity

Turning abandoned mines into batteries

https://iiasa.ac.at/news/jan-2023/turning-abandoned-mines-into-batteries