Approximate Nameplate Capacity

No definition available.

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Namespace Prefix:	so_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	instant

- 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

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+ Details

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Period Type:	duration

- Definition

Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

+ References

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- Definition

The proportionate share of interest (percent) in a jointly owned utility plant.

+ References

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- Details

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Acquisitions and Dispositions - Narrative (Details) $ in Millions	Jun. 30, 2025 USD ($) MW	Jun. 19, 2025
MISSISSIPPI POWER CO \| Plant Daniel Units 1 and 2
Business Combination [Line Items]
Proportionate ownership share		50.00%
Millers Branch Solar Development Phase 1 \| SOUTHERN POWER CO
Business Combination [Line Items]
Approximate nameplate capacity	200
Millers Branch Solar Development Phase 2 \| SOUTHERN POWER CO
Business Combination [Line Items]
Approximate nameplate capacity	180
Millers Branch Solar Development Phase 3 \| SOUTHERN POWER CO
Business Combination [Line Items]
Approximate nameplate capacity	132
Millers Branch Solar Development \| SOUTHERN POWER CO
Business Combination [Line Items]
Approximate nameplate capacity	512
Construction work in progress \| $	$ 537
Wind Facilities \| SOUTHERN POWER CO
Business Combination [Line Items]
Construction work in progress \| $	$ 89