Peach Bottom 2 completes Fall refuel in 24 days, caps 705-day B2B run

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Peach Bottom 2, Delta, Pennsylvania.

Peach Bottom 2 completed a routine refueling outage on schedule in 24 days, matching its planned duration. The outage ran 0.3 days below the average of 13 prior refuels which averaged 24.3 days. By the NRC report of Nov 9, 2026, the unit returned to full power at 98%.

24 days outage · on schedule · seventh B2B run complete · 1,265 MW back at full power

Peach Bottom 2 completed its Fall 2026 refueling outage, reaching full power on Nov 8, 2026 after 24 days offline. The outage began on Oct 12, 2026. The reactor was critical by the NRC's Nov 5, 2026 report, in Mode 1 by Nov 6, 2026, and back on the grid by Nov 7, 2026. First power to full power took 3 days.

The 24-day actual matched the published schedule exactly (Oct 12, 2026 to Nov 5, 2026).

It also capped a 705-day breaker-to-breaker run, the unit's seventh qualified B2B run. Going into the refueling, the unit had run for more than 2 years without an unscheduled outage.

Counting the 24 days offline and the climb back to full power, the outage cost roughly 789,000 MWh of generation, worth approximately $32 million at recent wholesale prices.

Across the U.S. fleet of 94 commercial reactors, today's combined capacity factor is 83.3% (12 units currently refueling, 2 units in unscheduled outages), below the 88.0% baseline for this month over the past five years. At the same site, Peach Bottom 3 is running at full power. Callaway, Point Beach 1, Sequoyah 2, and Cooper also completed refueling outages within the past week.

Peach Bottom 2 is a 1,265-MW General Electric BWR/4 operated by Constellation Energy (commercial operation since 1974). At full power, it supplies enough electricity for roughly 1 million homes. The utility operates both units at this site and 19 more at 11 other U.S. plants. Ownership history: Exelon took it over in an October 2000 merger with PECO Energy, and Constellation Energy took it over in Exelon's February 2022 spin-off. Its operating license runs through 2053 (renewed in 2020). The unit ran at a 99.7% capacity factor in 2025, one of its strongest years.

View Peach Bottom 2's ratings, history, projections, and current status on NukeWorker.

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Sources: NRC Daily Reactor Power Status reports, validated outage schedules, and NukeWorker's projections.