Tuesday, June 14, 2011

Is solar energy really competitive with nuclear?

Joe Romm breaks it down:

Solar is Ready Now: ‘Ferocious Cost Reductions’ Make Solar PV Competitive


Here's the key, as I read it:

However, this comparison neglects the “value” of energy. Nuclear is a baseload resource; solar PV is more of a “peaking” resource. To compare 17 GW of global solar PV development to 17 GW of nuclear power plants ignores the fact that nuclear produces far more electricity than an equivalent solar PV plant.


Precisely. Solar works great if the Sun is shining (and even if it's going to be a mite less active, it's still going to shine), but we still have a problem on the Earth's nightside, mainly, lack of the Sun shining. So that would mean generating energy by some other means, or getting electricity from those newfangled batteries I occasionally post about. We need that technology too. And as far as I can tell, this will only cover existing electricity demand, not NEW demand, especially in the developing world -- which is why nuclear energy is still needed. In this country too, because we still need electricity at night, and my laptop battery is just about exhausted.

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