Expected Solar Yield, Key West

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

Yeah, we like to talk here, and sometimes people forget to answer the question :)

Key West city:

Dec = 50 AH
Jan = 55 AH
Feb = 68 AH

Source: PVWATTS

Enter Array Tilt =0, Panel DC Rating=250, and consider that it wants you to enter KW, not W. Still, enter watts, just remember that KWH in the resulting table are actually WH. Divide WH by 31 or 29 days, then divide by 12V.

Note, that the results are down-rated due to conversion of DC to AC because this is what residential solar systems do. So the above numbers for the "average" daily harvest are not overstated. The calculator actually shows the monthly harvest, so your daily output, say, for Dec, will be lower than 50 on some days and higher than 50 on other, to make the above total monthly.