Report comment <p>How could a solar furnace that depends on solar heat - not light energy - be a 24 hour supply? </p> <p>Solar-thermal is a big waste of space and technology - and will go the way of Nuclear; clean, but heat- producing (exothermic) and wasteful.</p> <p>That same field filled with solar Photo-voltaics and a bank of storage batteries will yield far more energy on a 24/7 basis. Solar P.V. is endothermic; heat isn't needed and is more absorbed than produced.</p>

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