I have purchased 250 W, 24V solar panel and right now I have checked the Voc & Isc of a panel on 11 am which is 32.5V, 7.2A. But when I am trying to find the maximum power by connecting 38 Ohm rheostat across the panel along with ammeter and voltmeter, only 65W power is coming out as well as I am getting a power of 67W by my MPPT setup.
I am not getting where is the problem?
Please help me out.
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