Constellation Energy Corp
Close on Nov 2, 2026Market cap $91.15BP/E 25.1Yield 0.15%
Constellation Energy Average Refueling Outage Duration per Unit by Year
Average Refueling Outage Duration per Unit — Constellation Operated Fleet (days) (days)
Constellation Energy Average Refueling Outage Duration per Unit: 22 days in FY2025, up 15.8% from a year earlier.
Where the FY2025 figure comes from
“In 2025, we achieved an average refueling outage duration of 22 days for units we operate.”
Source: Constellation Energy 10-K FY2025 (0001868275-26-000032) ↗
Reported in Form 10-K Item 1 Nuclear Facilities.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Average Refueling Outage Duration per Unit — Constellation Operated Fleet (days) (days) | Year on year | Source |
|---|---|---|---|---|
| FY2025 | Dec 31, 2025 | 22 | +15.8% | Constellation Energy 10-K FY2025 (0001868275-26-000032) ↗ |
| FY2024 | Dec 31, 2024 | 19 | -9.5% | Constellation Energy 10-K FY2025 (0001868275-26-000032) ↗ |
| FY2023 | Dec 31, 2023 | 21 | 0.0% | Constellation Energy 10-K FY2025 (0001868275-26-000032) ↗ |
| FY2022 | Dec 31, 2022 | 21 | -4.5% | Constellation Energy 10-K FY2024 (0001868275-25-000023) ↗ |
| FY2021 | Dec 31, 2021 | 22 | 0.0% | Constellation Energy 10-K FY2023 (0001868275-24-000017) ↗ |
| FY2020 | Dec 31, 2020 | 22 | +4.8% | Constellation Energy 10-K FY2022 (0001868275-23-000013) ↗ |
| FY2019 | Dec 31, 2019 | 21 | – | Constellation Energy 10-K FY2021 (0001193125-22-084880) ↗ |
Breakdown
What makes up average Refueling Outage Duration per Unit
Cite this data
StockData. (2026). Constellation Energy Average Refueling Outage Duration per Unit (days), annual FY2019–FY2025 [Data set]. Compiled from Constellation Energy SEC filings and investor materials. https://stockdatahq.com/stocks/ceg/kpis/nuc-avg-refueling-duration-days
See every metric in the Constellation Energy KPI table. Data updated Oct 26, 2026.