Questions for ‘Gravity ‘batteries’ might help a weighty renewable-energy problem’
![a huge crane-like structure rises into the sky in the valley of a mountain range](https://www.snexplores.org/wp-content/uploads/2023/08/1440_gravity-storage-of-E_feat-1030x580.jpg)
In July 2020, the company Energy Vault built this huge “battery” in the Swiss Alps. It releases power — electricity — or stores it by slowly lowering or raising heavy blocks.
Energy Vault