The WACC of Eversource Energy (ES) is 4.7%.
| Range | Selected | |
| Cost of equity | 5.50% - 7.20% | 6.35% |
| Tax rate | 22.60% - 23.50% | 23.05% |
| Cost of debt | 4.00% - 4.50% | 4.25% |
| WACC | 4.2% - 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 | 0.35 | 0.41 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.50% | 7.20% |
| Tax rate | 22.60% | 23.50% |
| Debt/Equity ratio | 1.13 | 1.13 |
| Cost of debt | 4.00% | 4.50% |
| After-tax WACC | 4.2% | 5.2% |
| Selected WACC | 4.7% | |