Pilot Development Progress to Demonstrate Electric Thermal Energy Storage (ETES) Using Low-Cost Particles
- National Laboratory of the Rockies, Golden, CO (United States)
The rapid growth of variable renewable power generation increases the need to economically store electrical energy over durations up to several days in long-duration energy storage (LDES) applications. LDES can bridge the intermittency of increasing variable renewable energy (VRE) and facilitate emission-free dispatchable electricity to improve the resilience of the grid and provide reliable and potentially cost-effective energy. Several energy storage approaches including mechanical, chemical and electrochemical methods are currently deployed or under development. However, LDES requirements pose unique challenges for scalability, energy capacity, and cost. Electro-thermal energy storage (ETES) can store a large capacity of energy with site flexibility and has attracted significant interest for LDES purposes. This paper shows the progress of developing a demonstration test facility for particle ETES technology including pilot-scale component design and fabrication.
- Research Organization:
- National Laboratory of the Rockies (NLR), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Clean Energy Demonstrations (OCED)
- DOE Contract Number:
- AC36-08GO28308;
- OSTI ID:
- 3015883
- Report Number(s):
- NLR/PR-5700-96989
- Resource Type:
- Conference presentation
- Conference Information:
- Presented at the 31st SolarPACES Conference, 23-26 September 2025, Almeria, Spain
- Country of Publication:
- United States
- Language:
- English
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