So with nanosolar having hit the grid parity on solar, it's only a matter of time before the world starts to get meaningful share of it's energy needs from my personal favorite of energy source .. The Great Sun.
When I was a kid - my pa told me about the solar streetlight installation in the village - where I grandpa had a shop. It was apparently not very effective - but that was then .. and what have we now -
With such technology we can create a grid connected solar farm - which in capital investments will cost no more than creating a coal based plant. Plus no fuel will be burnt, very little opex will be required .. less people, less pollution .. . only downside - A large area will be required.
How large - lets see. The Great Sun gives 1000 Watt per square meter. Nanosolar is claiming 17% efficiency but some bloggers won't buy that .. they say 14% .. so thats 140 Watts/sq meter of solar installation ...
Thats 7 square km for a 1000 MW Plant. I am sure that's VERY BIG compared to a coal plant. But I would still do it.
Hope I can muster the guts to import stuff from nanosolar and create a put together - may be a smaller installation - in Rajasthan ... Moser Baer - Beware.
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You have to remember that with all the line losses and such from generating electricity frmo a single farm is allot less efficient than point of use efficiency, as in from the foor to the kitchen. So taht 7 square kilometers gets allot smaller when you figure out how much is actually needed given the higher efficiency of a distributed system.
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