[RE-wrenches] Unisolar US64's

[Larry Crutcher, Starlight Solar]

Hi Carl,

I have installed hundreds of US-64's and ES62's, on grid and off. I  
don't have any documented data but I see the performance as the very  
best, especially in hot climates and low light conditions. Where I am  
located we have above average irradiance, 1050~1100 w/m2 and very high  
UV radiation. I have tested several panels that are 8~10 years old and  
all still output more than their rated power by 3% to 10% (Isc  
adjusted for irradiance and temp.). I have only experienced on module  
failure ever.

NREL has studied Uni-Solar modules and found that they produce 20%  
more power annually than crystalline modules (eg. Santa Cruz test  
site). In Australia, a very hot test site produced 30% more power than  
Solarex modules. Want more? In Hopland Ca. in June 1998, Real Goods  
did a "shoot out" comparison with SP75's and AstroPower AP7105's.  
Result was the Uni-Solar performed up to 32.2% better!

I really like promoting high performance products for my customers but  
Uni-Solar has stopped making framed panels (and yes, I am sad) to  
devote the production to the laminate market. Are you still able to  
get any framed panels in NZ?

Kindest Regards,

Larry Crutcher
Starlight Solar
(928) 941-1660
Renewable Energy Products, Service and Installation

Mailing Address (NO SHIPPING):
11881 S Fortuna Rd.
#210
Yuma, AZ 85367

Shipping and retail store (NO MAIL):
2998 Shari Ave
Yuma, AZ 85365

On Mar 24, 2009, at 6:13 PM, Carl Emerson wrote:

> Hi there,
>
> Anyone got some real world performance data that shows how well the  
> Unisolar US64 panels are holding up after several years in service?
>
> Carl Emerson
> Free Power Ltd.
> Auckland NZ

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