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Income Taxes (Details)

3 Months Ended

9 Months Ended

Sep. 30, 2025

Sep. 30, 2024

Sep. 30, 2025

Sep. 30, 2024

Income Tax Disclosure [Abstract]

Federal statutory rate

21.00%

21.00%

21.00%

21.00%

State income tax on pretax income, net of federal tax effect

5.20%

4.70%

4.90%

4.80%

PTCs (a)

^[1]

(17.00%)

(16.00%)

(27.00%)

(26.20%)

Plant regulatory differences (b)

^[2]

(8.20%)

(5.70%)

(7.20%)

(5.90%)

Other tax credits, net operating loss & tax credit allowances

(0.40%)

(1.50%)

(0.90%)

(1.10%)

Other, net

0.90%

(1.10%)

0.80%

(0.30%)

Effective income tax rate

1.50%

1.40%

(8.40%)

(7.70%)

[1]	Wind and solar PTCs (net of estimated transfer discounts) are generally credited to customers (reduction to revenue) and do not materially impact earnings
[2]	Plant regulatory differences primarily relate to the credit of excess deferred taxes to customers. Income tax benefits associated with the credit are offset by corresponding revenue reductions.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of reported income tax benefit (expense) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to other reconciling items. Excludes state and local income tax expense (benefit), federal tax expense (benefit), statutory income tax expense (benefit) outside of country of domicile, tax credit, nondeductible expense, deduction, income tax settlement, income tax contingency, and cross-border tax law.

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