| Allen | ||||
| Sites | MPE (%) | RMSE (kWh/m2/day) | MBE (kWh/m2/day) | NSE (kWh/m2/day) |
| Abeche | −5.4824 | 0.8835 | −0.0548 | −1.4197 |
| Faya-Largeau | −16.724 | 1.297 | −0.1672 | −1.256 |
| Am-timan | −3.9584 | 0.5638 | −0.0396 | −0.2442 |
| N’Djamena | 0.0784 | 0.8275 | 0.0008 | −0.4261 |
| Moundou | −0.8437 | 0.3962 | −0.0084 | 0.7181 |
| Sarh | −0.8779 | 0.5114 | −0.0088 | 0.5245 |
| Pala | −3.0737 | 0.4175 | −0.0307 | 0.5684 |
| Bongor | 5.1543 | 0.7879 | 0.0515 | −0.6421 |
| Ati | −5.8254 | 0.9031 | −0.0583 | −1.4289 |
| Bokoro | 1.1811 | 0.799 | 0.0118 | −0.9464 |
| Mongo | −17.506 | 1.2438 | −0.1751 | −4.1008 |
| Moussoro | −7.523 | 1.0278 | −0.0752 | −2.0198 |