http://biz.yahoo.com/rf/001213/l28109508_3.html
Solar energy may be more costly in the near term, however. There are several
companies now that are looking at the commercial production of solar panels
for homes, and yes, cars, that are much more efficient than existing panels.
The article above indicates the trend and the companies involved. These
panels can be purchased now and the cost for supplying up to 4 kw is about
$7 per watt, which works out to about $28,000. Not bad but this is still
more costly than being on the grid, with one exception. The home panels can
generate power and sell this power to back through the grid. Each day there
is more than 27 times the energy in solar radiation that irradiates the
surface of the earth than is produced per year by all anthropogenic energy
sources.
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