Luxury Coach Lifestyles - View Single Post - any way to measure the wattage of a solar panel

NewellCrazy · 11-21-2012, 02:29 AM

Testing the true output of a solar panel is almost impossible. It would require an absolutely clear day at the equator, your solar panel being exactly perpendicular to the sun's rays, and a very low resistance load shunting an ammeter, and an accurate voltmeter. In short, it's not practical, and the difference between a 110 and 120 is only about 9%. That said, if the dimensions and design aren't even close, you have no way of knowing what they installed.

11-21-2012, 02:29 AM	#2
NewellCrazy Senior Member Join Date: Sep 2006 Location: Sugarland, TX or Salida,CO Posts: 1,867	Testing the true output of a solar panel is almost impossible. It would require an absolutely clear day at the equator, your solar panel being exactly perpendicular to the sun's rays, and a very low resistance load shunting an ammeter, and an accurate voltmeter. In short, it's not practical, and the difference between a 110 and 120 is only about 9%. That said, if the dimensions and design aren't even close, you have no way of knowing what they installed. __________________ Sean If Ain't a Newell, It Ain't Wurt Oonin!