The WACC of Sempra Energy (SRE) is 5.4%.
| Range | Selected | |
| Cost of equity | 5.50% - 7.40% | 6.45% |
| Tax rate | 18.50% - 27.80% | 23.15% |
| Cost of debt | 4.30% - 4.90% | 4.60% |
| 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 | 0.36 | 0.44 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.50% | 7.40% |
| Tax rate | 18.50% | 27.80% |
| Debt/Equity ratio | 0.6 | 0.6 |
| Cost of debt | 4.30% | 4.90% |
| After-tax WACC | 4.8% | 5.9% |
| Selected WACC | 5.4% | |