| Discount rate | Piedmont site | Coastal Plain site | ||
| LEV($/ac) | Rotation age (years) | LEV($/ac) | Rotation age (years) | |
| 5% | 461 | 32 | 866 | 24 |
| 7% | 174 | 30 | 349 | 22 |
| 9% | 49 | 21 | 91 | 22 |