| Operating revenues | 11,900.81a | 11,910.71a | 12,289.34a |
| Operating expenses | — | — | — |
| Purchased power, purchased natural gas and transmission | -3,736.08a | -5,168.24a | -5,014.07a |
| Operations and maintenance | -2,012.93a | -1,895.7a | -1,865.33a |
| Depreciation | -1,433.5a | -1,305.84a | -1,194.25a |
| Amortization | -342.86a | -490.12a | -448.89a |
| Energy efficiency programs | -671.83a | -691.34a | -658.05a |
| Taxes other than income taxes | -997.9a | -940.36a | -910.59a |
| Loss on pending sale of Aquarion | -297a | | |
| Total operating expenses | -9,492.1a | -9,511.37a | -10,091.18a |
| Operating income | 2,408.71a | 2,399.34a | 2,198.15a |
| Interest expense | -1,111.34a | -855.44a | -678.27a |
| Losses on offshore wind investments | -464.02a | -2,167a | |
| Other income, net | 410.48a | 348.07a | 346.09a |
| Income/(loss) before income tax expense | 1,243.84a | -275.04a | 1,865.97a |
| Income tax expense | -424.66a | -159.68a | -453.57a |
| Net income/(loss) | 819.17a | -434.72a | 1,412.39a |
| Net income attributable to noncontrolling interests | 7.52a | 7.52a | 7.52a |
| Net income/(loss) attributable to common shareholders | 811.65a | -442.24a | 1,404.88a |