Regulatory Asset, Deferral, Denial Of Recovery

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- Definition

Regulatory Asset, Disallowance Of Fuel Costs

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Fuel Disallowance

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Fuel Disallowance, Deferral

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Net Investment

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Net Under-Recovered Fuel Costs

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Percentage of Fuel Supply Provided

+ References

No definition available.

+ Details

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- Definition

Amount of Dolet Hills Fuel Costs Approved to Recover in 2021.

+ References

No definition available.

+ Details

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- Definition

Approved Deferral of Dolet Hills Fuel Costs in 2021

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Recovery Of Fuel Costs, Period

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Refund To Customer Period

+ References

No definition available.

+ Details

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- Definition

Regulatory Asset, Refund To Customer, Proposed Amount

+ References

No definition available.

+ Details

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- Definition

The net amount of all regulatory assets less all regulatory liabilities as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478742/980-340-50-1

+ Details

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- Definition

The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-2

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

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EFFECTS OF REGULATION - Narrative (Details) - USD ($) $ in Millions	1 Months Ended								3 Months Ended		12 Months Ended
	Jan. 31, 2025	Nov. 30, 2024	Jun. 30, 2024	Apr. 30, 2024	Feb. 29, 2024	Sep. 30, 2023	Aug. 31, 2022	Mar. 31, 2021	Mar. 31, 2024	Jun. 30, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Public Utilities, General Disclosures [Line Items]
Disallowance amount											$ 142.5	$ 85.6	$ 48.8
SOUTHWESTERN ELECTRIC POWER COMPANY
Public Utilities, General Disclosures [Line Items]
Disallowance amount											0.0	$ 85.6	$ 0.0
Disallowance of fuel costs			$ 535.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Subsequent Event \| Minimum
Public Utilities, General Disclosures [Line Items]
Disallowance of fuel costs	$ 2.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Subsequent Event \| Maximum
Public Utilities, General Disclosures [Line Items]
Disallowance of fuel costs	25.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Dolet Hills Power Station \| Texas
Public Utilities, General Disclosures [Line Items]
Disallowance amount														$ 12.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Dolet Hills Power Station \| Arkansas
Public Utilities, General Disclosures [Line Items]
Disallowance amount										$ 2.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Dolet Hills Power Station \| Louisiana
Public Utilities, General Disclosures [Line Items]
Disallowance amount									$ 14.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Pirkey Station \| Texas
Public Utilities, General Disclosures [Line Items]
Net book value											69.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Dolet Hills Generating Station and Related Fuel Operations
Public Utilities, General Disclosures [Line Items]
Percentage of fuel supply provided														100.00%
Net investment											74.0
Net under-recovered fuel costs											22.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Dolet Hills Generating Station and Related Fuel Operations \| Texas
Public Utilities, General Disclosures [Line Items]
Recovery of fuel costs						$ 48.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Dolet Hills Generating Station and Related Fuel Operations \| Arkansas
Public Utilities, General Disclosures [Line Items]
Recovery of fuel costs								$ 20.0
Recovery of fuel costs, period								5 years
SOUTHWESTERN ELECTRIC POWER COMPANY \| Dolet Hills Generating Station and Related Fuel Operations \| Louisiana
Public Utilities, General Disclosures [Line Items]
Recovery of fuel costs								$ 20.0
Recovery of fuel costs, deferred								$ 35.0
Fuel disallowance							$ 55.0
Fuel disallowance, deferral							$ 35.0
Refund to customer period							5 years
Refund to customer, proposed					$ 55.0
Deferral, denial of recovery					$ 35.0
Disallowance of fuel costs				$ 11.0
Regulatory asset											$ 24.0
Regulatory asset, recovery period											3 years
SOUTHWESTERN ELECTRIC POWER COMPANY \| Pirkey Power Plant and Related Fuel Operations
Public Utilities, General Disclosures [Line Items]
Net investment											$ 188.0
Net under-recovered fuel costs											$ 22.0
Fuel disallowance		$ 5.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Pirkey Power Plant and Related Fuel Operations \| Texas
Public Utilities, General Disclosures [Line Items]
Recovery of fuel costs						$ 33.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Pirkey Power Plant and Related Fuel Operations \| Texas \| Subsequent Event \| Minimum
Public Utilities, General Disclosures [Line Items]
Fuel disallowance	2.0
SOUTHWESTERN ELECTRIC POWER COMPANY \| Pirkey Power Plant and Related Fuel Operations \| Texas \| Subsequent Event \| Maximum
Public Utilities, General Disclosures [Line Items]
Fuel disallowance	$ 25.0