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Constellation Energy Corp (CEG) operating KPIs

CEGNasdaqElectric ServicesFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026Score 11/302% above fair value
$262.38−2.20 (-0.83%)

Close on Oct 30, 2026Market cap $92.96BP/E 25.6Yield 0.15%

Constellation Energy operated Nuclear Fleet Capacity Factor (%) (%)

Net monthly generation divided by maximum dependable capacity multiplied by hours in the period for Constellation-operated nuclear units (excludes non-operated Salem and STP).

QuarterlyAnnual
Latest, Q2 2026
93.0%
Period ended Jun 30, 2026
Change on a year earlier
-1.8 pts
94.8% in Q2 2025
History
22 quarters
Since Q1 2021
Sources
18
Documents cited below

Quarterly history

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

PeriodEndedOperated Nuclear Fleet Capacity Factor (%) (%)Year on yearSource
Q2 2026Jun 30, 202693.0%-1.8 ptsConstellation Energy 8-K 2Q26 Release (0001868275-26-000097) ↗
Q1 2026Mar 31, 202692.3%-1.8 ptsConstellation Energy 8-K 1Q26 Release (0001868275-26-000063) ↗
Q4 2025Dec 31, 202593.1%-1.7 ptsConstellation Energy 8-K 4Q25 Release (0001868275-26-000029) ↗
Q3 2025Sep 30, 202596.8%+1.8 ptsConstellation Energy 8-K 3Q25 Release (0001868275-25-000089) ↗
Q2 2025Jun 30, 202594.8%-0.6 ptsConstellation Energy 8-K 2Q26 Release (0001868275-26-000097) ↗
Q1 2025Mar 31, 202594.1%+0.8 ptsConstellation Energy 8-K 1Q26 Release (0001868275-26-000063) ↗
Q4 2024Dec 31, 202494.8%-0.3 ptsConstellation Energy 8-K 4Q25 Release (0001868275-26-000029) ↗
Q3 2024Sep 30, 202495.0%-2.2 ptsConstellation Energy 8-K 3Q25 Release (0001868275-25-000089) ↗
Q2 2024Jun 30, 202495.4%+3.0 ptsConstellation Energy 8-K 2Q25 Release (0001868275-25-000070) ↗
Q1 2024Mar 31, 202493.3%+0.5 ptsConstellation Energy 8-K 1Q25 Release (0001868275-25-000040) ↗
Q4 2023Dec 31, 202395.1%-0.3 ptsConstellation Energy 8-K 4Q24 Release (0001868275-25-000020) ↗
Q3 2023Sep 30, 202397.2%+0.8 ptsConstellation Energy 8-K 3Q24 Release (0001868275-24-000064) ↗
Q2 2023Jun 30, 202392.4%-1.8 ptsConstellation Energy 8-K 2Q24 Release (0001868275-24-000047) ↗
Q1 2023Mar 31, 202392.8%-0.2 ptsConstellation Energy 8-K 1Q24 Release (0001868275-24-000031) ↗
Q4 2022Dec 31, 202295.4%+3.0 ptsConstellation Energy 8-K 4Q23 Release (0001868275-24-000014) ↗
Q3 2022Sep 30, 202296.4%-1.3 ptsConstellation Energy 8-K 3Q23 Release (0001868275-23-000076) ↗

Breakdown

What makes up operated nuclear fleet capacity factor (%)

Cite this data

StockData. (2026). Constellation Energy Operated Nuclear Fleet Capacity Factor (%) (%), quarterly Q1 2021–Q2 2026 [Data set]. Compiled from Constellation Energy SEC filings and investor materials. https://stockdatahq.com/stocks/ceg/kpis/nuclear_capacity_factor_pct

See every metric in the Constellation Energy KPI table. Data updated Oct 26, 2026.