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Southern Co

SONYSEElectric ServicesFiscal year ends December 31Also trades as SOJC, SOJD, SOJE, SOJF, SOMN
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Jul 30, 2026Score 6/3012% above fair value
$94.61+0.90 (+0.96%)

Close on Nov 2, 2026Market cap $107.95BP/E 22.9Yield 3.11%

Southern System Generation Mix — Nuclear by Year

System Generation Mix — Nuclear (%) (%)

QuarterlyAnnual

Southern System Generation Mix — Nuclear: 19.0% in FY2025, down 1.0 pts from a year earlier.

Latest, FY2025
19.0%
Period ended Dec 31, 2025
Change on a year earlier
-1.0 pts
20.0% in FY2024
History
9 years
Since FY2017
Sources
8
Documents cited below

Where the FY2025 figure comes from

“|| Nuclear (a) | 19 | 20”

Source: Southern Company 10-K (10k_2025, filed 2026-02-19, 0000092122-26-000006) ↗

Reported in Form 10-Q & Form 10-K Combined MD&A — Generation, Purchased Power & Fuel Cost Schedules.

Annual history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedSystem Generation Mix — Nuclear (%) (%)Year on yearSource
FY2025Dec 31, 202519.0%-1.0 ptsSouthern Company 10-K (10k_2025, filed 2026-02-19, 0000092122-26-000006) ↗
FY2024Dec 31, 202420.0%+2.0 ptsSouthern Company 10-K (10k_2024, filed 2025-02-20, 0000092122-25-000018) ↗
FY2023Dec 31, 202318.0%+2.0 ptsSouthern Company 10-K (10k_2023, filed 2024-02-15, 0000092122-24-000009) ↗
FY2022Dec 31, 202216.0%-2.0 ptsSouthern Company 10-K (10k_2022, filed 2023-02-16, 0000092122-23-000012) ↗
FY2021Dec 31, 202118.0%+1.0 ptsSouthern Company 10-K (10k_2021, filed 2022-02-17, 0000092122-22-000003) ↗
FY2020Dec 31, 202017.0%+1.0 ptsSouthern Company 10-K (10k_2020, filed 2021-02-18, 0000092122-21-000006) ↗
FY2019Dec 31, 201916.0%+1.0 ptsSouthern Company 10-K (10k_2019, filed 2020-02-20, 0000092122-20-000017) ↗
FY2018Dec 31, 201815.0%-1.0 ptsSouthern Company 10-K (10k_2018, filed 2019-02-20, 0000092122-19-000006) ↗
FY2017Dec 31, 201716.0%–Southern Company 10-K (10k_2018, filed 2019-02-20, 0000092122-19-000006) ↗

Cite this data

StockData. (2026). Southern System Generation Mix — Nuclear (%), annual FY2017–FY2025 [Data set]. Compiled from Southern SEC filings and investor materials. https://stockdatahq.com/stocks/so/kpis/mda-so-mix-nuclear-pct

See every metric in the Southern KPI table. Data updated Nov 2, 2026.