2176Re: Cost in energy of producing a PV panel vs. it's lifetime return
- Sep 13, 2003--- In email@example.com, Joseph <joseph@d...> wrote:
> I was wondering where I can get some data on the energy it takes tomake
> a PV panel in comparison to the energy that same panel will be ableto
> produce during it's operational lifetime.Hi, this thread goes back to the question on Aug 31. Below is a link
> Any ideas?
> Joseph Davis
to an article on the Home Power website that answers this exact
question about energy payback vs energy used to produce a PV panel.
It's a fairly long article but the authors published a paper at Solar
2000: ASES Annual Conference in Madison, Wisconsin on this exact
question, so I suspect that it's pretty accurate. Which is good
because the answer is that the payback time is 2-4 years.
They take into account every step of the process including the
smelting of the aluminum and the casting of the glass. Both processes
are very energy intensive. However, the cost goes down as the volume
goes up so the actual cost for 10 feet or so of extruded aluminum for
the module frame, for instance, is really not that great.
Anyway, I hope to see you all at the Roundup. A bunch of us from
NTREG will be there!
Jim Duncan, Fort Worth
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