The EarthStore Edge
An Elegant Solution for Long Duration Energy Storage
The EarthStore long-duration energy storage (LDES) solution from RESC employs a mix of established and innovative technologies to attain cost-effective storage durations spanning from eight hours to several days. By incorporating compressed air energy storage (CAES) and concrete thermal energy storage (CTES), this system effectively stores energy and supplies it as required.
Low-risk turbo-machinery
By using proven and turbo-machinery technology, the EarthStore system can ensure the efficient transfer of energy with minimal risk of failure or inefficiencies over several decades of operation.
Compressed air storage in salt caverns
Compressed air is stored in underground salt caverns, which provide a safe and cost-effective way to store large volumes of air. Salt caverns have been used for decades for storing natural gas, and their use for compressed air storage further reduces the technology risk.
Innovative thermal energy storage
In the EarthStore system, CTES is used to capture and store the heat generated during the compression process. This stored heat is then used during the expansion process, improving the overall efficiency of the system. The patent-pending technology reduces energy loss and increases the performance of the system compared to traditional.
No leaps of faith
By integrating these three components, the EarthStore system provides an advanced energy storage solution that reduces technology risk compared to competing technologies. This approach leads to lower costs and improved reliability for grid-scale energy storage, making it an attractive option for utilities and other large-scale energy users.