| Angstrom-Prescott | ||||
| Sites | MPE(%) | RMSE (kWh/m2/day) | MBE (kWh/m2/day) | NSE (kWh/m2/day) |
| Abeche | −7.8073 | 0.9141 | −0.0781 | −1.5902 |
| Faya-Largeau | −13.791 | 1.289 | −0.1379 | −1.2293 |
| Am-timan | −0.8875 | 0.4256 | −0.0089 | 0.291 |
| N’Djamena | 1.2655 | 0.6038 | 0.0127 | 0.2408 |
| Moundou | 2.4541 | 0.4353 | 0.0245 | 0.6596 |
| Sarh | −1.7654 | 0.4417 | −0.0177 | 0.6453 |
| Pala | 1.4822 | 0.3338 | 0.0148 | 0.7241 |
| Bongor | 1.5902 | 0.3368 | 0.0159 | 0.6999 |
| Ati | −6.4463 | 0.7823 | −0.0645 | −0.8224 |
| Bokoro | −1.5466 | 0.5834 | −0.0155 | −0.0377 |
| Mongo | −1.8291 | 0.5609 | −0.0183 | −0.0373 |
| Moussoro | −4.1310 | 0.6887 | −0.0413 | −0.3560 |