The WACC of Pinnacle West Capital Corp (PNW) is 5.4%.
| Range | Selected | |
| Cost of equity | 6.30% - 8.00% | 7.15% |
| Tax rate | 19.50% - 19.70% | 19.60% |
| Cost of debt | 4.00% - 4.70% | 4.35% |
| WACC | 4.8% - 5.9% | 5.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.52 | 0.57 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.30% | 8.00% |
| Tax rate | 19.50% | 19.70% |
| Debt/Equity ratio | 0.97 | 0.97 |
| Cost of debt | 4.00% | 4.70% |
| After-tax WACC | 4.8% | 5.9% |
| Selected WACC | 5.4% | |