Consider a PV module with the following parameters as measured at STC (Standard Testing Conditions):
Voc = 55 V;
Isc = 5 A;
Impp = 4.7 A;
Fill Factor = FF = 75% ;
Efficiency = 19.75%.
Suppose that under normal operation at STC conditions, the module is not connected to an MPPT device, and is instead directly connected to a purely resistive, variable load 'R'. The load R can be tuned to give a resistance between 0 to 1kΩ.
What value of resistance will you keep the load at, if you wish to derive maximum power from the PV module under STC conditions?
1)R = 9.34Ω.
2)R = 11Ω.
3)R = 11.71Ω.
4)R = 5Ω.
5)Irrespective of the value R takes, the module can never be made to deliver maximum power under STC.
4 answers
3)11.71¥Ø
it's the first one - 9.34
Thanks Onix and sat
Thanks sat it´s correct the first one