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Economics of internal and external energy storage in solar power plant operationA simple approach is formulated to investigate the effect of energy storage on the bus-bar electrical energy cost of solar thermal power plants. Economic analysis based on this approach does not require detailed definition of a specific storage system. A wide spectrum of storage system candidates ranging from hot water to superconducting magnets can be studied based on total investment and a rough knowledge of energy in and out efficiencies. Preliminary analysis indicates that internal energy storage (thermal) schemes offer better opportunities for energy cost reduction than external energy storage (nonthermal) schemes for solar applications. Based on data and assumptions used in JPL evaluation studies, differential energy costs due to storage are presented for a 100 MWe solar power plant by varying the energy capacity. The simple approach presented in this paper provides useful insight regarding the operation of energy storage in solar power plant applications, while also indicating a range of design parameters where storage can be cost effective.
Document ID
19770065986
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Manvi, R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Fujita, T.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference
Location: Washington, DC
Start Date: August 28, 1977
End Date: September 2, 1977
Accession Number
77A48838
Funding Number(s)
CONTRACT_GRANT: NASA 776-11-61-0
Distribution Limits
Public
Copyright
Other

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