Table 3.

RMSE and MAE of I–V curve obtained by equivalent circuit method.

Working Conditions	1	2	3	4
Irradiance G (W/m2)	153.7	328.7	537.9	726.9
MAE	0.443	0.975	1.236	0.998
RMSE	0.335	0.766	0.895	0.864