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PETE: A New Solar Energy Conversion Process
Added Apr 12, 2012 | Rate View top rated
Stanford engineers have discovered a process called photon enhanced thermionic emission (PETE) that simultaneously combines the light and heat of solar radiation to generate electricity, and could offer over double the efficiency of existing solar cell technology. The process could reduce the costs of solar energy production enough for it to compete with oil.
sbkadar | commented on September 7, 2012
This seemed rather vague as to the actual technologies involved. How does this compare in efficiency with the solid oxide electrolyzers driven by concentrated solar (PV) cells? The systems had parabolic concentrators with the solar cells away from the prime focus but still concentrated 10X. The PV cells are transmissive in the ir. The ir passing through the cells heats the SOE at the prime focus to operating temperature. The current from the PV then drives the SOE to generate hydrogen which is stored. I believe that the potential efficiency of these systems was about 40% A test system was installed in Australia.
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