XML 56 R11.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Regulatory Assets and Liabilities | 12 Months Ended
--- | ---
Dec. 31, 2024
Regulatory Assets and Liabilities Disclosure [Abstract] |
Regulatory Assets and Liabilities | Regulatory assets and liabilities are created for amounts that regulators may allow to be collected or may require to be paid back to customers in future electric and natural gas rates. Xcel Energy would be required to recognize the write-off of regulatory assets and liabilities in net income or other comprehensive income if changes in the utility industry no longer allow for the application of regulatory accounting guidance under GAAP. Components of regulatory assets:
(Millions of Dollars) |  | See Note(s) |  | Remaining Amortization Period |  | Dec. 31, 2024 |  | Dec. 31, 2023
Regulatory Assets |  |  |  |  |  | Current |  | Noncurrent |  | Current |  | Noncurrent
Pension and retiree medical obligations |  | 11 |  | Various |  | $ | 39 |  |  | $ | 1,167 |  |  | $ | 27 |  |  | $ | 1,106 |
Net AROs |  | 1, 12 |  | Various |  | — |  |  | 387 |  |  | — |  |  | 316 |
Recoverable deferred taxes on AFUDC |  |  |  | Plant lives |  | — |  |  | 368 |  |  | — |  |  | 332 |
Depreciation differences |  |  |  | Various |  | 17 |  |  | 250 |  |  | 17 |  |  | 189 |
Excess deferred taxes — TCJA |  | 7 |  | Various |  | 10 |  |  | 184 |  |  | 10 |  |  | 198 |
MISO capacity revenue tracker |  |  |  | One to two years |  | 63 |  |  | 45 |  |  | 36 |  |  | 26 |
Environmental remediation costs |  | 1, 12 |  | Various |  | 13 |  |  | 39 |  |  | 15 |  |  | 94 |
Prairie Island extended power uprate |  |  |  | 10 years |  | 4 |  |  | 34 |  |  | 4 |  |  | 38 |
Conservation programs (a) |  | 1 |  | One to two years |  | 20 |  |  | 30 |  |  | 19 |  |  | 54 |
Purchased power contract costs |  |  |  | Term of related contract |  | 5 |  |  | 28 |  |  | 4 |  |  | 40 |
Benson biomass PPA termination and asset purchase |  |  |  | Four years |  | 10 |  |  | 26 |  |  | 10 |  |  | 36 |
Deferred natural gas, electric, steam energy/fuel costs |  |  |  | One to two years |  | 99 |  |  | 25 |  |  | 239 |  |  | 80 |
Sales true-up and revenue decoupling |  |  |  | Various |  | 60 |  |  | 23 |  |  | 7 |  |  | 33 |
Nuclear refueling outage costs |  | 1 |  | One to two years |  | 51 |  |  | 20 |  |  | 43 |  |  | 19 |
Gas pipeline inspection and remediation costs |  |  |  | One to two years |  | 47 |  |  | 9 |  |  | 40 |  |  | 25 |
Renewable resources and environmental initiatives |  |  |  | One to two years |  | 34 |  |  | 4 |  |  | 38 |  |  | 5 |
Other |  |  |  | Various |  | 89 |  |  | 210 |  |  | 102 |  |  | 207 |
Total regulatory assets |  |  |  |  |  | $ | 561 |  |  | $ | 2,849 |  |  | $ | 611 |  |  | $ | 2,798 |
(a)Includes costs for conservation programs, as well as incentives allowed in certain jurisdictions. Components of regulatory liabilities:
(Millions of Dollars) |  | See Note(s) |  | Remaining Amortization Period |  | Dec. 31, 2024 |  | Dec. 31, 2023
Regulatory Liabilities |  |  |  |  |  | Current |  | Noncurrent |  | Current |  | Noncurrent
Deferred income tax adjustments and TCJA refunds (a) |  | 7 |  | Various |  | $ | 7 |  |  | $ | 2,888 |  |  | $ | 7 |  |  | $ | 3,015 |
Plant removal costs |  | 1, 12 |  | Various |  | — |  |  | 2,208 |  |  | — |  |  | 1,984 |
Effects of regulation on employee benefit costs (b) |  | 11 |  | Various |  | — |  |  | 259 |  |  | — |  |  | 253 |
Renewable resources and environmental initiatives |  |  |  | Various |  | 16 |  |  | 232 |  |  | 9 |  |  | 188 |
Net AROs (c) |  |  |  | Various |  | — |  |  | 161 |  |  | — |  |  | 90 |
ITC deferrals |  | 1 |  | Various |  | — |  |  | 70 |  |  | 1 |  |  | 60 |
IRA deferral |  |  |  | One to three years |  | 3 |  |  | 37 |  |  | — |  |  | — |
Deferred natural gas, electric, steam energy/fuel costs |  |  |  | One to two years |  | 480 |  |  | 12 |  |  | 220 |  |  | — |
Contract valuation adjustments (d) |  | 1, 10 |  | Less than one year |  | 89 |  |  | — |  |  | 56 |  |  | — |
Conservation programs (e) |  | 1 |  | Less than one year |  | 52 |  |  | — |  |  | 47 |  |  | — |
Other |  |  |  | Various |  | 205 |  |  | 143 |  |  | 188 |  |  | 237 |
Total regulatory liabilities (f) |  |  |  |  |  | $ | 852 |  |  | $ | 6,010 |  |  | $ | 528 |  |  | $ | 5,827 |
(a)Includes the revaluation of recoverable/regulated plant ADIT and revaluation impact of non-plant ADIT due to the TCJA. (b)Includes regulatory amortization and certain 2018 TCJA benefits approved by the CPUC to offset the PSCo prepaid pension asset. (c)Includes amounts recorded for future recovery of AROs, less amounts recovered through nuclear decommissioning accruals and gains from decommissioning investments. (d)Includes the fair value of FTR instruments utilized/intended to offset the impacts of transmission system congestion. (e)Includes costs for conservation programs, as well as incentives allowed in certain jurisdictions.. (f)Revenue subject to refund of $3 million and $187 million for 2024 and 2023, respectively, is included in other current liabilities. Xcel Energy’s regulatory assets not earning a return include past expenditures of $892 million and $1,085 million at Dec. 31, 2024 and 2023 respectively, which predominately relate to purchased natural gas and electric energy costs (including certain costs related to Winter Storm Uri), sales true-up and revenue decoupling, various renewable resources/environmental initiatives and certain prepaid pension amounts. Additionally, the unfunded portion of pension and retiree medical obligations and net AROs (i.e. deferrals for which cash has not been disbursed) do not earn a return.

X
- References No definition available. + Details
Name: | us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for detailed information about regulatory assets and liabilities, including current and noncurrent assets created when regulatory agencies permit the deferral of costs to the balance sheet that would otherwise be required to appear on the company's income statement and would be charged against current expenses or revenues, as well as current and noncurrent liabilities created when regulatory agencies permit. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration