Expected Solar Yield, Key West

OMG! Do U guys EVER just go campin?

Solar nerds do exist! :B

joelmyer wrote:
Can anybody tell me the expected daily yield of a 250 w panel flat on the roof at 24.5 degrees N. Dec, Jan, Feb

Thanks

Joel

If you're looking for "insolation" numbers (solar radiation at ground/earth level), if latitude 24.55 is close enough, and if you know how to read these charts- here's a link to the following described data collected for that location between 1965 and 1990

"City: ","KEY WEST "
"State: ","FL"
"WBAN No: ", 12836
" Lat(N): ", 24.55
"Long(W): ", 81.75
"Elev(m): ", 1
"Pres(mb):", 1016
"Stn Type:","Secondary"
"SOLAR RADIATION FOR FLAT-PLATE COLLECTORS FACING SOUTH AT A FIXED-TILT (kWh/m2/day), Percentage Uncertainty = 9"

Play with the two sliders on this one. Somebody here (forget who, sorry) posted this, and I find it handy.

http://pveducation.org/pvcdrom/properties-of-sunlight/calculation-of-solar-insolation

joelmyer wrote:
Can anybody tell me the expected daily yield of a 250 w panel flat on the roof at 24.5 degrees N. Dec, Jan, Feb

Thanks

Joel

Not without knowing the panel specs. At NREL you will be able to calculate insolation values.

I believe any answer is going to involve sheer guesstimation. Replies from SV users in Phoenix or Texas would in my estimation serve as a reliable basis for computation. A week's worth of morning dew and salt brine is going to hamper careful calculations.

Good Luck :)