How To: Install solar panels

Shell is not local, its foreign, but anyway, why is amps x volts = more than the watts listed? Does this number have to be multiplied by .80 (80 percent) to get the wattage?

Part 2- again the formula is wrong that you stated in part 1, 90 volts x 1 am = 90 watts but it is rated for 60, this is now 90 x .66 to make this equation true, can you please explain

Great introduction to solar power, however I wish you could explain how volts amps, and watts correlate with each other and the solar panels, controller, inverter and batteries. Also, the discrepancies of what a solar panel is capable of producing to what it actually produces and how those numbers will affect your system. Also, how/what can be upgraded when purchasing equipment to allow for system expansion.

Thanks! Great Job!

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