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Hybrid Nuclear Thermal Energy Storage System Revenue With Design and Market Uncertainty

[+] Author Affiliations
W. Neal Mann, Erich A. Schneider

University of Texas at Austin, Austin, TX

Paper No. ICONE25-67335, pp. V001T01A033; 7 pages
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 1: Operations and Maintenance, Engineering, Modifications, Life Extension, Life Cycle and Balance of Plant; I&C, Digital Controls, and Influence of Human Factors
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5779-3
  • Copyright © 2017 by ASME


A generic thermal energy storage (TES) system is considered as a retrofit to an existing nuclear power plant in Texas. A validated PLEXOS model of the ERCOT electric grid is used to simulate electricity market clearing in 2030. Three scenarios of natural gas price forecasts are used with a coupled capacity expansion model to simulate the deployment of competing technologies. The power, energy capacity and ramp rate of the TES system are varied parametrically in order to calculate the revenues arising from arbitrage as well as ancillary services. Increasing the ramp rate and power increases the storage system net revenue in all cases. Increasing energy capacity has a positive effect on net revenue in a small number of cases but has mixed results overall.

Copyright © 2017 by ASME



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