Table 4 PV output power (kW) and percentage gain in output power B/W monthly and annual OTA using the HDKR model.

From: Optimizing tilt angle of PV modules for different locations using isotropic and anisotropic models to maximize power output

Month

Monthly Average Daily Solar Radiations (kWh/m2/day)

Ambient Temp (°C)

Cell Temp (°C)

PV Output Power with Monthly OTA (kW)

PV Output Power with Annual OTA (kW)

Percentage Gain in Output power B/W Monthly and Annual OTA (%)

1

2.25

12.2

14.943

12.9909

11.682

11.20%

2

3.35

16.1

20.185

19.9471

17.0867

16.74%

3

4.22

21.9

27.045

25.998

21.0226

23.67%

4

5.29

27

33.45

33.2925

25.7663

29.21%

5

5.87

32.8

39.957

36.7464

34.7706

5.68%

6

5.89

32.8

39.982

37.1334

35.2031

5.48%

7

5.5

31.4

38.106

34.8204

33.0788

5.26%

8

5.39

30.7

37.272

33.7867

32.4687

4.05%

9

4.95

29

35.035

29.9333

29.7378

0.66%

10

3.75

25.8

30.372

22.1509

18.4698

19.93%

11

2.56

19.2

22.321

15.1327

13.0461

15.99%

12

2.18

14

16.658

12.4064

11.2603

10.18%