The WACC of Idacorp Inc (IDA) is 5.5%.
| Range | Selected | |
| Cost of equity | 5.60% - 7.10% | 6.35% |
| Tax rate | 10.30% - 11.50% | 10.90% |
| Cost of debt | 4.30% - 4.60% | 4.45% |
| WACC | 5.0% - 6.0% | 5.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.38 | 0.4 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.60% | 7.10% |
| Tax rate | 10.30% | 11.50% |
| Debt/Equity ratio | 0.55 | 0.55 |
| Cost of debt | 4.30% | 4.60% |
| After-tax WACC | 5.0% | 6.0% |
| Selected WACC | 5.5% | |