Hydrogen--halogen energy storage system for electric utility applications
A techno-economic assessment is made for a hydrogen-chlorine energy storage system for electric utility load leveling and peak shaving applications. The proposed system consists of a GE Solid Polymer Electrolyte Cell, metal hydride hydrogen storage, and liquid chlorine/hydrochloric acid storage subsystems. The electrochemical cell operates under high pressure, which facilitates both hydrogen uptake by the metal hydride and production of chlorine as a liquid in the cell. The waste heat from the cell is used for decomposition of the hydride to release the stored hydrogen. Experiments carried out to date show that it should be possible to attain overall efficiencies (electric to electric) higher than 70% at high power densities (at least a factor of 5 higher than that for advanced batteries). Since the electrochemical process is reversible, the reactants for chemical and electrical generation are stored outside the cell, this system appears quite suitable for electric energy storage applications in both peaking and load leveling cycles.
- Research Organization:
- Brookhaven National Lab., Upton, N.Y. (USA); General Electric Co., Wilmington, Mass. (USA); Energy Development Associates, Madison Heights, Mich. (USA)
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- DOE Contract Number:
- EY-76-C-02-0016
- OSTI ID:
- 7295434
- Report Number(s):
- BNL-22820; CONF-770804-7
- Resource Relation:
- Conference: 12. intersociety energy conversion engineering conference, Washington, District of Columbia, United States of America (USA), 28 Aug 1977
- Country of Publication:
- United States
- Language:
- English
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