Time (h)

Irradiation

(mW cm2)

Temperature (˚C)

Maximum power,(W)

Results predicted by GA-RBF-NN

Prediction results by RBFN

Pmax (W)

Error

Pmax (W)

Error

8 - 9

55.267

29.170

5.142

4.838

5.91%

4.843

5.81%

9 - 10

76.213

31.394

6.405

6.368

0.58%

6.350

0.85%

10 - 11

90.950

32.930

7.257

7.288

0.44%

7.372

1.60%

11 - 12

96.900

34.967

7.926

7.910

0.21%

8.066

1.76%

12 - 13

95.703

35.884

8.101

8.088

0.16%

8.250

1.85%

13 - 14

86.797

36.524

7.849

7.922

0.94%

8.034

2.36%

14 - 15

70.299

37.176

7.065

6.946

1.68%

6.975

1.28%

15 - 16

49.329

37.002

5.518

4.974

9.86%

4.989

9.60%