Investigation on Potential-Induced Degradation in a 50 MWp Crystalline Silicon Photovoltaic Power Plant

Table 1

The electrical parameters for module 8 before shipments and after one year of operation.

Module 8	Voc (V)	Isc (A)	Vm (V)	Im (A)	Rsh (Ω)	(W)
Before shipments	44.96	5.73	36.58	5.38	398.23	196.81
After one year of operation	44.92	5.62	36.48	5.22	385.45	193.28
Degradation rate (%)	0.09	1.92	0.27	2.97	3.21	1.79

Test conditions: 1 kW/m² irradiance, 25°C module temperature and AM1.5 global spectrum.