Nobel laureate rings energy alarm bell

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Myth

No_Axe, now that's you're a famous blogger and all, you have
your reputation to protect.

Maybe you should do a little research.

Of COURSE solar cells are energy-intensive to make. But they
last for decades. Other than hurricane damage, they keep
pumping out watts for a very long time. Used Solar Cells are
supposed to be a good investment, as they are usually cheaper
and yet still have quite a lifespan.

So, the statement that PV modules will never make back their
energy investment is unlikely in the extreme.

http://www.ecotopia.com/apollo2/pvpayback.htm

"The 1983 book by Hu and White [1 ] summarises the results
from a 1977 Solarex study [ 2] which found an energy payback
time of 6.4 years for the manufacture of solar modules using
silicon cells of 12.5 per cent efficiency. In other words, these
modules would need to operate for that time in order to produce
as much energy as was invested in steps such as the reduction
and refinement of the silicon, crystal growth, cell production and
module construction."

Posted by: Jkirk3279   Posted on: 02/15/05 You are currently: a Guest | Members login | Terms of Use

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