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Help with calculating and understanding
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Posted to alt.solar.photovoltaic,alt.home.repair
Tony Wesley
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Help with calculating and understanding
wrote:
Windsun wrote:
... Basically, 100% uptime will cost you a lot more than 99% uptime.
If cloudy days were coinflips, storing enough energy for 1 day would
make 50% uptime possible, 2 would make 75%, with 3 for 88%, 4 for 94%,
5 for 97%, 6 for 98%, and 7 for 99%... 100% would be impossible.
Just an FYI, in the Detroit area, we just went from Dec 20 through Jan
5 (inclusive) with 14 minutes total sunshine.
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