On 3 August 2010 08:19, YES NOPE9 wrote: > http://www.rdmag.com/News/2010/08/Energy-Solar-Energy-Solar-Energy-Conver= sion-Process-Could-Revamp-Solar-Power-Production/ > > Stanford engineers have figured out how to simultaneously use the > light and heat of the sun to generate electricity 20 page PDF here. "Photon enhanced thermionic emission". Aims at very high temperature electricity production such that residual thermal energy is at high enough temperature for conventional thermal power systems. http://www.nature.com/nmat/journal/vaop/ncurrent/extref/nmat2814= -s1.pdf Existing PV panels could advantageously be water cooled to extract a significant amount of the thermal energy and simultaneously increase the electrical output. Gains of 5% to 10% in output can be obtained by running a very thin water film across the outer surface. Not a method you'd want to use but shows what can be achieved. Note that PV panel specs are almost always quoted at 20 C (A few at 25C). R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .