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v3.23.1

Income Taxes (Details) | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Income Tax Disclosure [Abstract] |  |  |
Federal statutory rate |  | 21.00% | 21.00%
State tax (net of federal tax effect) |  | 4.80% | 4.90%
Effective Income Tax Rate Reconciliation, Tax Credit, Percent | [1] | (33.10%) | (34.40%)
Plant regulatory differences (b) | [2] | (5.50%) | (4.80%)
Effective Income Tax Rate Reconciliation, Net Operating Loss Carryback, Percent |  | (1.60%) | (1.50%)
Other (net) |  | (0.10%) | (0.40%)
Effective income tax rate |  | (14.50%) | (15.20%)
[1] | Wind PTCs are credited to customers (reduction to revenue) and do not materially impact net income
[2] | Regulatory differences for income tax primarily relate to the credit of excess deferred taxes to customers through the average rate assumption method. Income tax benefits associated with the credit of excess deferred taxes are offset by corresponding revenue reductions.

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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 + Details
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