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Regulatory Matters - Summary of Utilities Rate Plans (CECONY-Electric) (Details) - CECONY - Electric - Scenario, Forecast $ in Thousands | 36 Months Ended
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Dec. 31, 2028 USD ($)
Public Utilities, General Disclosures [Line Items] |
Retention of annual transmission congestion revenues | $ 75,000
Authorized return on common equity (percent) | 9.40%
Earnings sharing (percent) | 9.90%
Common equity ratio (percent) | 48.00%
Electric base rate percentage | 2.80%
Recovery deferral (percent) | 80.00%
Maximum deferral (percent) | 15.00%
Year 1 |
Public Utilities, General Disclosures [Line Items] |
Base rate changes | $ 222,000
Capital expenditures | 4,550,000
Amortizations to income of net liabilities | 88,000
Potential earnings adjustment mechanism incentives | 40,000
Potential charges | 653,000
Average rate base | $ 32,935,000
Weighted average cost of capital (after-tax) (percent) | 6.98%
Cost of long-term debt (percent) | 4.78%
Requested rate increase, amount | $ 234,000
Year 1 | Electric average excluding AMI |
Public Utilities, General Disclosures [Line Items] |
Net utility plant reconciliations | 33,590,000
Year 2 |
Public Utilities, General Disclosures [Line Items] |
Base rate changes | 473,000
Capital expenditures | 4,474,000
Amortizations to income of net liabilities | 81,000
Potential earnings adjustment mechanism incentives | 42,000
Potential charges | 688,000
Average rate base | $ 35,149,000
Weighted average cost of capital (after-tax) (percent) | 7.04%
Cost of long-term debt (percent) | 4.90%
Requested rate increase, amount | $ 410,000
Year 2 | Electric average excluding AMI |
Public Utilities, General Disclosures [Line Items] |
Net utility plant reconciliations | 35,186,000
Year 3 |
Public Utilities, General Disclosures [Line Items] |
Base rate changes | 329,000
Capital expenditures | 4,712,000
Amortizations to income of net liabilities | 78,000
Potential earnings adjustment mechanism incentives | 47,000
Potential charges | 745,000
Average rate base | $ 39,174,000
Weighted average cost of capital (after-tax) (percent) | 7.10%
Cost of long-term debt (percent) | 5.01%
Requested rate increase, amount | $ 421,000
Year 3 | Electric average excluding AMI |
Public Utilities, General Disclosures [Line Items] |
Net utility plant reconciliations | 38,624,000
Protected Portion | Year 1 |
Public Utilities, General Disclosures [Line Items] |
Reflects regulatory liability amortization | 63,000
Actual net expenses amount | 8,500
Protected Portion | Year 2 |
Public Utilities, General Disclosures [Line Items] |
Reflects regulatory liability amortization | 58,000
Actual net expenses amount | 12,750
Protected Portion | Year 3 |
Public Utilities, General Disclosures [Line Items] |
Reflects regulatory liability amortization | 55,000
Actual net expenses amount | 17,000
Unprotected Portion | Year 1 |
Public Utilities, General Disclosures [Line Items] |
Reflects regulatory liability amortization | 24,000
Impact in regulatory liability resulting from TCJA | 1,000
Unprotected Portion | Year 2 |
Public Utilities, General Disclosures [Line Items] |
Reflects regulatory liability amortization | 22,000
Impact in regulatory liability resulting from TCJA | 1,000
Unprotected Portion | Year 3 |
Public Utilities, General Disclosures [Line Items] |
Reflects regulatory liability amortization | 22,000
Impact in regulatory liability resulting from TCJA | $ 1,000

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