Low-Cost Thermal Energy Storage for Dispatchable CSP


SCH Number
Public Agency
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
Agency Name
California Energy Commission
Contact Types
Lead/Public Agency



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.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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