Efficiency (%)

Irradiation (W/m2)

25˚C

40˚C

50˚C

60˚C

(1/η)(dη/dT) (1/˚C)

200

13.1003

11.2890

10.0873

8.8933

−0.0109

300

13.4528

11.6557

10.4627

9.2768

−0.0104

400

13.7024

11.9160

10.7296

9.5492

−0.0102

500

13.8957

12.1177

10.9363

9.7604

−0.0099