The WACC of Alliant Energy Corp (LNT) is 5.2%.
| Range | Selected | |
| Cost of equity | 5.10% - 6.60% | 5.85% |
| Tax rate | 7.30% - 10.40% | 8.85% |
| Cost of debt | 4.10% - 4.90% | 4.50% |
| WACC | 4.6% - 5.7% | 5.2% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.27 | 0.3 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.10% | 6.60% |
| Tax rate | 7.30% | 10.40% |
| Debt/Equity ratio | 0.62 | 0.62 |
| Cost of debt | 4.10% | 4.90% |
| After-tax WACC | 4.6% | 5.7% |
| Selected WACC | 5.2% | |