Forum Discussion
xzyHollyxyz
Aug 10, 2013Explorer
OP HERE - we must have posted around the same time. So, looks like I"m okay for now? ? Thanks!!
Tom_M wrote:
Crunching some numbers:
A typical 100 watt panel can put out a Maximum Power Current (Imp) of 5.8 Amps.
#12 wire has a resistance of about .16 ohms per 100ft.
If you are making a 50ft. cable it would consist of 2 conductors totaling 100ft.
The formula for watts is current squared times resistance.
5.8 x 5.8 x .16 = 5.3824 watts which would be the power lost in the wire.
If you used #10 wire this would drop to about 3.4 watts.
So you would be losing only a couple of watts by using #12 vs #10 wire.
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