Feedback on this solar kit?
Hello, I see Harbor Freight has this kit on sale for $140. Yes, I know it's probably the cheapest cheesiest thing I could probably buy because it's from HF, but it's my first endeavor into solar charg...
Forum Discussion
let's remember that a 75 watt panel puts out more than its rated amps in full sun since the power curve shows more amp at less voltage. As BFL13 reports, close to its Isc. As for solar radiation, ones location, time of year and how the panel is situated determines the total solar radiation for the day in full sun which often exceeds 5 kWh/m^2. Don't forget your new panel may exceed spec, as it ages its output will decline. I know my 60 watt (3.3Imp, 3.8Isc) makes 4A Isc @ 1KW/m^2.
7-8 kWh/m^2 for a good part of the USA in the summer for a flat panel (average).
http://rredc.nrel.gov/solar/old_data/nsrdb/1961-1990/redbook/atlas/serve.cgi
Don't forget to deposit enough in the piggy back for the tools needed to cut wire, crimp on lugs and the other stuff. It ain't free the the education is priceless if ye ain't got the skills/tools already.
7-8 kWh/m^2 for a good part of the USA in the summer for a flat panel (average).
http://rredc.nrel.gov/solar/old_data/nsrdb/1961-1990/redbook/atlas/serve.cgi
Don't forget to deposit enough in the piggy back for the tools needed to cut wire, crimp on lugs and the other stuff. It ain't free the the education is priceless if ye ain't got the skills/tools already.
