[All Darc]

The problem with combined photovoltaics & water heater, in concentrated photovoltaic systems it's the multi junction cells temperature to work. So you can't boil the water using it as a cooler for the multi junction ell that receives the 1000 suns, otherwise it wouls mess with the multi junction cell receiver. If you could do it, the system would use water up to boiling boiling to create steam to move turbines to generate even more electricity.

But why not use prisms to split light and separated the infra-red spectrum, and use this infra red portion of the concentrated light to create steam and use with small efficient turbines to generate electricity ?

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Redpoint, you can try to say that Elvis died in one of these thrones.