Solar performance #s
I posted some of this on another board and thought it might interest some seeing there are a lot of solar system installs on rv using folks here. Here are some numbers from the past year. Habit from t...
Forum Discussion
Chum lee wrote:
ALDI is a +-12,000 sq. ft. retail store with solar panels covering about a 30% of the roof area. On a good day in the summer I've seen the output as high as 25 Kw so winter sun and slight cloud cover takes a big hit on the solar output.
15-20 KW is what 30KW system in LA should be getting on an average day in December below 500ft. 3,000 KWH or more total monthly. The difference btw winter sun and summer sun in this area on flat install is 1.4-1.5 times - this includes clouds effect. Not 8 times.
Hard to tell why it was only 3KW under thin clouds on that particular day. Bad install, bad wiring, bad grid-tie interaction, bad LA smog, bad cleaning lady. I don't camp at high elevations, don't like it, "maybe" there are weather abnormalities in this location affecting the output that I don't know of.
