Solar charging with some shade
I'm facing west today, so I'm getting a pretty good shadow on one of six series-connected panels. Panels are all around 135w @ 12v. Shade is on the far-left panel - about half of it: No...
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Where does it say that amps amount is the same as Imp
In the situation of measuring the total array, the IMP or amperage at maximum power is the measured current between the array and the controller. I think you're getting hung up on IMP being the rating of the panels and how that is effected for delivering the rated watts.
The bottom line is that in the case of shaded panels, IMP is a dynamic measurement of power, not static. Shaded cells affect the IMP of a panel. If the panels are wired in series, shading one will effect the IMP of the total array.
This website explains shading clearly.
