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Economics of thermal energy storage for compressed air energy storage systems [electronic resource].

Published
Columbus, Ohio : Battelle Memorial Institute, 1979.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 8 : digital, PDF file
Additional Creators
Battelle Memorial Institute and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The costs of compressed air energy storage (CAES) systems utilizing thermal energy storage are compared with the costs of conventional CAES systems and combustion gas turbine systems. Comparisons are made on the basis of system energy cost levelized over system operating lifetime (mills/kWh). The comparison was performed by Pacific Northwest Laboratory for the Department of Energy using information from reference studies by the Massachusetts Institute of Technology, Central Electricity Generating Board and Knutsen Research Services. System energy costs were estimated using information from three reference CAES/thermal energy storage studies, a recent PNL research effort, and the EPRI Technical Assessment Guide. Capital investment cost estimates and system operating requirements were obtained from the reference studies. Current turbine fuel and compression energy prices were obtained from a July 1979 PNL research effort. Economic and financial input assumptions and a discounted cash flow-required revenue computational methodology were taken from the Technical Assessment Guide. Use of such a normalization procedure results in system energy cost estimates that are both realistic and comparable. Two principal conclusions resulted from the study. First, given today's fuel prices and the expected fuel prices in the 1980's, conventional CAES systems yield lower energy cost estimates than combustion gas turbine systems. Second, thermal energy system storage/adiabatic CAES systems yield equivalent and, in some instances, slightly lower energy cost estimates than conventional CAES systems while requiring considerably less turbine fuel oil.
Report Numbers
E 1.99:pnl-sa-7949
pnl-sa-7949
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
08/01/1979.
"pnl-sa-7949"
Schulte, S.C.
Funding Information
EY-76-C-06-1830
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