How will Energy Vault support China's national energy grid?

Energy Vault said that upon completion, the systems will support the balancing of China’s national energy grid through the storage and delivery of renewable energy. The Rudong and Zhangye projects have been designated as new energy storage pilot demonstration projects by China’s National Energy Administration.

What is Energy Vault EVX gravity-energy storage system (GESS)?

Energy Vault has connected its 25 MW/100 MWh EVx gravity-energy storage system (GESS) in China. Once provincial and state approvals are obtained to start operating, it will become the world’s first commercial, utility-scale, non-pumped hydro GESS.

How does The EVX gravity storage system work?

The EVx gravity storage system works by raising and lowering concrete blocks to store and release potential energy, and will store 100MWh of energy, which it can deliver at 25MW.

Could gravity storage help balance a wind farm's electricity output?

Switzerland-based Energy Vault says it has built a large gravity storage installation in China which will help balance the electrical output of a wind farm, and it is now being "commissioned" before connection to the grid.

What is gravity storage?

Gravity storage has been proposed by a number of players, as a way to store solar and wind energy that has been generated at times when demand is low. On a sunny day, for instance, a solar farm's output could be stored as potential energy by raising concrete blocks.

How many EVX GESS deployments are there in China?

With the announcements, Energy Vault’s partners, CNTY and Atlas Renewable, now have nine EVx GESS deployments underway in China totalling 3.7GWh, each of which will generate future project revenue royalties for Energy Vault.