?
Total qualified breaker-to-breaker runs (>470 days continuous operation, no trips to 0% power).
-
Total B2B Runs
?
Average duration of continuous operation across all qualifying breaker-to-breaker runs.
-
Avg Duration
?
The longest single breaker-to-breaker run on record in the fleet. The US record is over 700 days.
-
Longest Run
?
Nuclear units currently on a qualifying B2B run (>470 days continuous, still operating).
-
Active Runs
?
B2B runs completed in the last two years, indicating recent fleet breaker-to-breaker performance.
-
Recent (2yr)
?
The unit with the longest ongoing breaker-to-breaker run — the current industry leader.
-
Best Active Streak
BEST ACTIVE STREAK
—
SHORTEST COMPLETED
—
?
Annual count of completed breaker-to-breaker runs vs total refueling outages, showing the fleet's B2B success rate over time.
B2B Runs & Success Rate
?
Nuclear plants ranked by total number of breaker-to-breaker runs completed.
Top Plants by B2B Runs
?
Utility companies ranked by average B2B run duration (days). Longer = better operational continuity.
Owner Leaderboard — Avg B2B Duration
?
Each dot is a completed B2B run plotted by end date and duration. The trend line shows whether the industry is achieving longer runs over time.
Fleet Trend — B2B Duration Over Time
?
Does a shorter preceding outage lead to a longer B2B run? Each dot shows the outage that preceded a B2B run vs the run duration.
Outage Duration vs B2B Run Length
?
Year-by-year breakdown: B2B runs completed divided by total refueling outages started that year.
Industry Performance: B2B Success Rate
| Year | B2B Runs | Total Refuels | Success Rate |
|---|
* B2B Runs: Count of breaker-to-breaker runs completed in that year.
* Total Refuels: Count of verified Scheduled Refueling Outages starting in that year.
* Success Rate: B2B Runs / Total Refueling Outages.
?
Searchable registry of all verified breaker-to-breaker runs. Sortable by unit, owner, start/end date, and duration in days.
B2B Registry
| Unit | Owner | Start | End | Days | Status |
|---|
Methodology: Continuous operation > 470 days (approx 15 months) with NO trips (0% power).
Matches standard 18/24 month fuel cycles. Short runs ending in forced outages are excluded.
Page created in 2.356 seconds with 323 queries.