Energy Vault to deploy 2 GWh of gravity storage in China
Instead of using water they are using mass made from coal ash and old windmill blades...
Switzerland-based gravity storage system provider Energy Vault announced it will build five storage projects with a combined storage capacity of 2 GWh in China.
The company said the projects will rely on its EVx gravity-based energy storage technology and that it will partner with US-based Atlas Renewable Energy, Chinese NGO EIPC, China-based telecommunications company China Tianying, and unspecified selected provincial and local governments for their construction.
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Energy Vault’s EVx storage system is comparable to pumped hydro, using grid-scale renewable energy when supply is abundant to drive motors and raise 30-ton blocks on a six-arm crane tower, rather than water, up to a height. When power needs to be discharged back to the grid, the blocks are lowered, harvesting the kinetic energy.
According to the company, there is zero degradation in the storage capacity of the composite blocks, which can remain in the raised position for unlimited periods of time. Its composite blocks are developed in cooperation with Mexico’s Cemex, using local soil at sites where it builds its storage systems, as well as other materials such as recycled coal ash, waste tailings from mining operations, and decommissioned wind turbine blades.
Energy Vault’s EVx tower features 80% to 85% round-trip efficiency and over 35 years of technical life. It has a scalable modular design up to multiple GWh in storage capacity.
https://www.pv-magazine-australia.com/2022/09/20/energy-vault-to-deploy-2-gwh-of-gravity-storage-in-china/?utm_source=USA+%7C+Newsletter&utm_campaign=37d1dc9252-RSS_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_80e0d17bb8-37d1dc9252-140219173
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