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View Diary: Still No Major Media Coverage of Alaska Oil Spill (148 comments)

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  •  Yes (none)
    There may be ways to capture solar energy more efficiently.  Solar energy may someday be so efficient that it compares favorably with oil in terms of production costs.  But it will never be so efficient that a solar energy system -- photovoltaic or otherwise -- will ever be able to produce enough energy on the surface area of an apartment building to provide enough energy for all the families within it.  The power just isn't there.  The sun only shines so brightly.

    At peak output, when the sun is shining directly overhead and there are no clouds, only 1,000 watts of solar energy falls on each square meter of the Earth.  Even with an impossible to achieve 100% efficient energy conversion, solar cells lining the surface area of an apartment building would not be able to provide enough energy for its occupants. The sun just doesn't output enuogh energy.  And that's the point I was trying to make.

    No, I'm not a FReeper. Thanks.

    by JamesInPDX on Wed Mar 30, 2005 at 08:33:37 PM PST

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