Classic 150 and two solar arrays

[DMJ72]

Hi everyone,

I am planning on replacing my morningstar MPPT-60 with a classic 150 in the coming weeks, I would like to add an east 800W facing array to my 1kW south facing array. My system is 24V nominal.

Will I need to add another classic for that array? or can the Classic's excellent MPPT tracker deal with the two orienations at the same time..

[Halfcrazy]

Well it will deal with it but the question is how much you loose. What I would do is hook each array up with its own breakers so you can isolate them. Then at high noon on a good day I would start with Both arrays on and note the wattage. Then I would switch off on of the arrays and hit enter on the Classic to force a sweep. Note that wattage and swap the arrays and repeat that. The do the math and see how much you are loosing.

Ryan

[DMJ72]

Thanks Ryan, will do a test when I get the classic.