The WACC of Pinnacle West Capital Corp (PNW) is 4.7%.
| Range | Selected | |
| Cost of equity | 5.20% - 6.60% | 5.90% |
| Tax rate | 19.50% - 19.70% | 19.60% |
| Cost of debt | 4.00% - 4.60% | 4.30% |
| WACC | 4.3% - 5.2% | 4.7% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.28 | 0.31 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.20% | 6.60% |
| Tax rate | 19.50% | 19.70% |
| Debt/Equity ratio | 0.87 | 0.87 |
| Cost of debt | 4.00% | 4.60% |
| After-tax WACC | 4.3% | 5.2% |
| Selected WACC | 4.7% | |