Title

Efficiency and cost goals for photoenhanced hydrogen production processes

Abstract

The objective of this work is to set minimum efficiency and cost goals for photoenhanced hydrogen production processes. Photovoltaic (PV) electrolysis was selected as the base for these goals, since the process technology is well-established, and the expected future photovoltaic efficiencies and costs have been documented. The analysis was conducted by first evaluating the present and predicted efficiencies and costs of PV electricity and of PV-electrolysis hydrogen production. The PV-electrolysis values were then used as a base case for setting efficiencies and cost goals for photoelectrochemical (PEC) and photobiological (PB) production processes. This process is based on the concept that any PEC or PB process values must be at least equal to or better than the PV-electrolysis values. Finally, costs of conventional materials and solar processes were examined on an area basis to ensure realistic cost goals. The cost and production goals can also be used to assess other hydrogen production processes, such as thermochemical. Results are presented for the cost of PV-generated dc electricity, PV-electrolysis hydrogen and photoenhanced systems vs process efficiencies. © 1992.

Publication Date

1-1-1992

Publication Title

International Journal of Hydrogen Energy

Volume

17

Issue

11

Number of Pages

853-861

Document Type

Article

Identifier

scopus

DOI Link

https://doi.org/10.1016/0360-3199(92)90035-U

Socpus ID

0026943713 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0026943713

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