Table 6.
Objective values and solution time of 12-farm cases from period 12 to period 18.
| Objective value (unit cost) |
Solution time (sec.) |
||||||
|---|---|---|---|---|---|---|---|
| Problem Instances | Period | Lingo (LB) | Lingo (UB) | OPT | HEU | Lingo (UB) | HEU |
| 12F–12P | 12 | 781482 | 781482 | 781482 | 781482 | 34 | 47 |
| 12F–13P | 13 | 768791 | 768791 | 768791 | 768889 | 96 | 70 |
| 12F–14P | 14 | 628925 | 628925 | 628925 | 628925 | 197 | 143 |
| 12F–15P | 15 | 665235 | 665235 | 665235 | 665235 | 1063 | 167 |
| 12F–16P | 16 | 580220 | 580220 | 580220 | 580220 | 3878 | 336 |
| 12F–17P | 17 | 677556 | 696670 | a | 696328 | 7026 | 536 |
| 12F–18P | 18 | 448200 | 481232 | a | 477501 | 7200 | 3677 |
a
No optimal solution found within 2 h.