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Hydrogen production from solar energyThree alternatives for hydrogen production from solar energy have been analyzed on both efficiency and economic grounds. The analysis shows that the alternative using solar energy followed by thermochemical decomposition of water to produce hydrogen is the optimum one. The other schemes considered were the direct conversion of solar energy to electricity by silicon cells and water electrolysis, and the use of solar energy to power a vapor cycle followed by electrical generation and electrolysis. The capital cost of hydrogen via the thermochemical alternative was estimated at $575/kW of hydrogen output or $3.15/million Btu. Although this cost appears high when compared with hydrogen from other primary energy sources or from fossil fuel, environmental and social costs which favor solar energy may prove this scheme feasible in the future.
Document ID
19750045405
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Eisenstadt, M. M.
(New Mexico, University Albuquerque, N. Mex., United States)
Cox, K. E.
Date Acquired
August 8, 2013
Publication Date
April 1, 1975
Publication Information
Publication: Solar Energy
Volume: 17
Subject Category
Energy Production And Conversion
Accession Number
75A29477
Funding Number(s)
CONTRACT_GRANT: NGT-44-005-114
Distribution Limits
Public
Copyright
Other

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