Unisolar Roofing [RE-wrenches]

[Steve Bell]

HI Bill,
I have run some numbers for LA & San Francisco.
Based on a fixed array tilted for the highest annual power production and a
90% system efficiency (this is probably overly optimistic).  I got
1890 kWh/year/kWstc for San Francisco
1920 kWh/year/kWstc for LA
With array soiling and wire losses you could easily loss another 10%.
Your numbers are lower, but are probably good real-life conversative
numbers.

Steve Bell
SunWize

This should generate some good controversy because nobody I know
states numbers this low. However, these are real-life conservative numbers.

> CITY kWh/kWstc
> San Francisco 1379
> Los Angeles 1406


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