Low-Cost Thermal Energy Storage for Dispatchable CSP


SCH Number
Lead Agency
Energy Commission (California Energy Commission)
Document Title
Low-Cost Thermal Energy Storage for Dispatchable CSP
Document Type
NOE - Notice of Exemption

Document Description
This project will demonstrate an innovative and low-cost approach to utility-scale thermal energy storage (TES) that exceeds DOE cost goals and enables successful realization of California Energy Commission renewable energy targets. The innovation is the use of a system cost-optimal approach that employs a robust and low-cost thermal storage fluid, elemental sulfur, which enables overall low system costs, long lifetime, and scalability for a wide range of CSP applications and temperatures. An on-sun demonstration of this approach will be performed using Hyperlight Energy's CSP facility, which was developed with the support of the California Energy Commission's PIER program (Contract 500-10-063).

Contact Information
Kevin Uy
California Energy Commission
1516 Ninth Street, MS-48
Sacramento, CA 95814

(916) 654-5000



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
This project involves demonstration of a sulfur-based TES system at an existing CSP test site, along with the development of models and tools for this TES system.
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