Constellation Energy Corp
Close on Nov 2, 2026Market cap $91.15BP/E 25.1Yield 0.15%
Constellation Energy Operated Nuclear Fleet Total Outage Days (days) by Year
Operated Nuclear Fleet Total Outage Days (days) (days)
Constellation Energy Operated Nuclear Fleet Total Outage Days (days): 272 days in FY2025, up 2.3% from a year earlier.
Where the FY2025 figure comes from
“|| Total Outage Days | 93 | 69 | 272 | 266”
Source: Constellation Energy 8-K 4Q25 Release (0001868275-26-000029) ↗
Reported in Form 10-K / 10-Q MD&A & Form 8-K Earnings Release Operational Statistics.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Operated Nuclear Fleet Total Outage Days (days) (days) | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | 272 | +2.3% | Constellation Energy 8-K 4Q25 Release (0001868275-26-000029) ↗ |
| FY2024 | Dec 31, 2024 | 266 | -13.4% | Constellation Energy 8-K 4Q25 Release (0001868275-26-000029) ↗ |
| FY2023 | Dec 31, 2023 | 307 | +15.4% | Constellation Energy 8-K 4Q24 Release (0001868275-25-000020) ↗ |
| FY2022 | Dec 31, 2022 | 266 | -10.1% | Constellation Energy 8-K 4Q23 Release (0001868275-24-000014) ↗ |
| FY2021 | Dec 31, 2021 | 296 | – | Constellation Energy 8-K 4Q22 Release (0001868275-23-000011) ↗ |
Breakdown
What makes up operated Nuclear Fleet Total Outage Days (days)
Cite this data
StockData. (2026). Constellation Energy Operated Nuclear Fleet Total Outage Days (days) (days), annual FY2021–FY2025 [Data set]. Compiled from Constellation Energy SEC filings and investor materials. https://stockdatahq.com/stocks/ceg/kpis/nuc-total-outage-days
See every metric in the Constellation Energy KPI table. Data updated Oct 26, 2026.