PV panel degradation [RE-wrenches]
Darryl Thayer
daryl_solar at yahoo.com
Mon Sep 15 22:06:19 PDT 2003
Hi Keith
I have a system that was in operation and monitored
for almost 10 years. The whole array of Mobil
polycrystalline panels, of almost 100 panels lost just
under 1% per year. The loss was so small that it took
several years to verify the loss.
Daryl
--- keith <kcronin at lava.net> wrote:
>
> Hi
> Does anyone have historical data on pv panel
> degradation? Is it safe to
> say it is ½ to 1% per year?
>
> Shouldnt this be factored into the purchase, from a
> potential clients
> perspective? Lets say a 150 watt panel
> hypothetically only puts out 120
> watts real world, would it be a 1% degradation to
> get to the 25 year
> warranty?
> Thanks for the feedback!
>
> Keith Cronin
>
> President
> Island Energy Solutions
> 318A Kuulei Rd
> Kailua, HI 96734
> 808-262-3268 Tel
> 808-263-0338 Fax
> www.islandenergy.net
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