Southern Co
Close on Nov 2, 2026Market cap $107.95BP/E 22.9Yield 3.11%
Southern Mississippi Power Company State-Regulated Rate Base by Year
Mississippi Power Company State-Regulated Rate Base / Invested Capital ($B)
Southern Mississippi Power Company State-Regulated Rate Base: $4.00B in FY2025, unchanged from a year earlier.
Where the FY2025 figure comes from
“Mississippi Power 0.2M $4B 55%”
Source: Southern Company slides (slides_2025q4) ↗
Reported in Southern Company Q4/Annual Earnings Call Slide Presentations — State-Regulated Rate Base Schedule.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Mississippi Power Company State-Regulated Rate Base / Invested Capital ($B) | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | 4.00 | 0.0% | Southern Company slides (slides_2025q4) ↗ |
| FY2024 | Dec 31, 2024 | 4.00 | 0.0% | Southern Company slides (slides_2024q4) ↗ |
| FY2023 | Dec 31, 2023 | 4.00 | – | Southern Company slides (slides_2023q4) ↗ |
Cite this data
StockData. (2026). Southern Mississippi Power Company State-Regulated Rate Base, annual FY2023–FY2025 [Data set]. Compiled from Southern SEC filings and investor materials. https://stockdatahq.com/stocks/so/kpis/ir-ratebase-mpc-b
See every metric in the Southern KPI table. Data updated Nov 2, 2026.