The WACC of Eversource Energy (ES) is 5.0%.
| Range | Selected | |
| Cost of equity | 6.00% - 8.30% | 7.15% |
| Tax rate | 22.60% - 23.50% | 23.05% |
| Cost of debt | 4.00% - 4.60% | 4.30% |
| WACC | 4.4% - 5.7% | 5.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.47 | 0.61 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.00% | 8.30% |
| Tax rate | 22.60% | 23.50% |
| Debt/Equity ratio | 1.25 | 1.25 |
| Cost of debt | 4.00% | 4.60% |
| After-tax WACC | 4.4% | 5.7% |
| Selected WACC | 5.0% | |