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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 U.S. Nuclear Fleet Monthly Capacity Factor by Month

U.S. Nuclear Fleet Monthly Capacity Factor (%) (%)

AnnualMonthly

Southern U.S. Nuclear Fleet Monthly Capacity Factor: 97.2% in Jul 2026, up 0.6 pts from a year earlier.

Latest, Jul 2026
97.2%
Period ended Jul 28, 2026
Change on a year earlier
+0.6 pts
96.6% in Jul 2025
History
103 months
Since Jan 2018
Sources
1
U.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs)

Where the Jul 2026 figure comes from

Source: U.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗

Reported in U.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9, through 2026-07).

Monthly history

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

PeriodEndedU.S. Nuclear Fleet Monthly Capacity Factor (%) (%)Year on yearSource
Jul 2026Jul 28, 202697.2%+0.6 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Jun 2026Jun 28, 202697.1%+3.7 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
May 2026May 28, 202688.8%+3.9 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Apr 2026Apr 28, 202681.0%-0.7 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Mar 2026Mar 28, 202684.8%-0.5 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Feb 2026Feb 28, 202694.3%+0.8 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Jan 2026Jan 28, 2026100.0%+2.0 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Dec 2025Dec 28, 202599.0%+1.7 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Nov 2025Nov 28, 202590.0%+2.6 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Oct 2025Oct 28, 202580.9%+0.6 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Sep 2025Sep 28, 202592.3%+3.8 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Aug 2025Aug 28, 202596.5%+1.2 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Jul 2025Jul 28, 202596.6%+1.2 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Jun 2025Jun 28, 202593.4%-2.9 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
May 2025May 28, 202584.9%-3.9 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗
Apr 2025Apr 28, 202581.7%-0.1 ptsU.S. EIA Monthly Energy Review (Tables 7.2a, 7.6, 8.1, 9.8 & 9.9 — U.S. Generation, Retail Sales, Nuclear Fleet & Fuel Costs) ↗

Cite this data

StockData. (2026). Southern U.S. Nuclear Fleet Monthly Capacity Factor (%), monthly Jan 2018–Jul 2026 [Data set]. Compiled from Southern SEC filings and investor materials. https://stockdatahq.com/stocks/so/kpis/mer-nucasus

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