The WACC of Otter Tail Corp (OTTR) is 6.8%.
| Range | Selected | |
| Cost of equity | 6.40% - 8.20% | 7.30% |
| Tax rate | 17.20% - 18.10% | 17.65% |
| Cost of debt | 4.40% - 7.00% | 5.70% |
| WACC | 5.8% - 7.7% | 6.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.56 | 0.6 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.40% | 8.20% |
| Tax rate | 17.20% | 18.10% |
| Debt/Equity ratio | 0.28 | 0.28 |
| Cost of debt | 4.40% | 7.00% |
| After-tax WACC | 5.8% | 7.7% |
| Selected WACC | 6.8% | |