Table 3. Error between the Calculated and the Experimental Efficiency.
| day | solar intensity (W/m2) | current (amp) | voltage (V) | power (W) | experimental efficiency (%) | calculated efficiency (%) | absolute error |
|---|---|---|---|---|---|---|---|
| day 1 (15/5/2022) | 717 | 4.14 | 15.7 | 65.00 | 19.37 | 19.17 | 0.20 |
| day 2 (16/5/2022) | 690 | 3.95 | 15.5 | 61.23 | 18.96 | 18.88 | 0.08 |
| day 3 (20/5/2022) | 710 | 4.12 | 15.7 | 64.68 | 19.47 | 20.15 | –0.68 |
| day 4 (21/5/2022) | 764 | 4.50 | 16.3 | 73.35 | 20.51 | 19.31 | 1.20 |
| day 5 (22/5/2022) | 600 | 3.20 | 15.8 | 50.56 | 18.01 | 18.72 | –0.71 |
| day 6 (23/5/2022) | 570 | 3.30 | 15.2 | 50.16 | 18.80 | 19.44 | –0.64 |
| day 7 (26/5/2022) | 698 | 3.99 | 15.5 | 61.85 | 18.93 | 19.41 | –0.48 |
| day 8 (27/5/2022) | 730 | 4.30 | 15.7 | 67.51 | 19.76 | 19.26 | 0.50 |
| day 9 (28/5/2022) | 736 | 4.29 | 17.1 | 73.36 | 21.30 | 20.56 | 0.74 |
| day 10 (29/5/2022) | 750 | 4.50 | 16.1 | 72.45 | 20.64 | 20.10 | 0.54 |