NukeGryd
The Operating Record

Breaker-to-Breaker Registry

A breaker-to-breaker run is one refueling outage to the next with no unplanned shutdown in between. It is the cleanest single read on whether a reactor is well run.
Filtered to FPL SRP TVA PJM Duke Progress Show all markets
Who is running clean, and for how long Individual · $165/mo

Continuous days on line for every reactor, which ones are inside a qualifying breaker-to-breaker run right now, how many they have completed, and how long since each one last tripped.

  • Current streak for all 94 units
  • Qualifying runs and champions
  • Days since the last reactor trip
  • Completed run history per unit

Current Runs · FPL + 4 more

alphabetical · 49 units
#UnitMarketMW Streak and trip record Individual
· Beaver Valley 1 PJM 907 █████
· Beaver Valley 2 PJM 901 █████
· Braidwood 1 PJM 1,183 █████
· Braidwood 2 PJM 1,152 █████
· Browns Ferry 1 TVA 1,227 █████
· Browns Ferry 2 TVA 1,208 █████
· Browns Ferry 3 TVA 1,227 █████
· Brunswick 1 Duke Progress 938 █████
· Brunswick 2 Duke Progress 932 █████
· Byron 1 PJM 1,164 █████
· Byron 2 PJM 1,136 █████
· Calvert Cliffs 1 PJM 884 █████
· Calvert Cliffs 2 PJM 861 █████
· D.C. Cook 1 PJM 1,009 █████
· D.C. Cook 2 PJM 1,168 █████
· Davis-Besse PJM 894 █████
· Dresden 2 PJM 902 █████
· Dresden 3 PJM 895 █████
· Harris 1 Duke Progress 964 █████
· Hope Creek 1 PJM 1,172 █████
· LaSalle 1 PJM 1,131 █████
· LaSalle 2 PJM 1,134 █████
· Limerick 1 PJM 1,120 █████
· Limerick 2 PJM 1,122 █████
· North Anna 1 PJM 948 █████
· North Anna 2 PJM 943 █████
· Palo Verde 1 SRP 1,311 █████
· Palo Verde 2 SRP 1,314 █████
· Palo Verde 3 SRP 1,312 █████
· Peach Bottom 2 PJM 1,265 █████
· Peach Bottom 3 PJM 1,285 █████
· Perry 1 PJM 1,240 █████
· Quad Cities 1 PJM 908 █████
· Quad Cities 2 PJM 911 █████
· Robinson 2 Duke Progress 759 █████
· Saint Lucie 1 FPL 981 █████
· Saint Lucie 2 FPL 987 █████
· Salem 1 PJM 1,146 █████
· Salem 2 PJM 1,142 █████
· Sequoyah 1 TVA 1,148 █████
· Sequoyah 2 TVA 1,126 █████
· Surry 1 PJM 838 █████
· Surry 2 PJM 838 █████
· Susquehanna 1 PJM 1,247 █████
· Susquehanna 2 PJM 1,247 █████
· Turkey Point 3 FPL 837 █████
· Turkey Point 4 FPL 844 █████
· Watts Bar 1 TVA 1,123 █████
· Watts Bar 2 TVA 1,122 █████
Toward B2B is progress through a full fuel cycle: a run only qualifies once the unit has gone from one refueling outage to the next without an unplanned shutdown, so the threshold is set per unit rather than as one fleet-wide number. Days since trip spans refuelings and is the longer-horizon read.
A long streak is not the same as a firm date Pro · $499/mo

A unit can run clean for six hundred days and still hand back an outage two weeks late. The overrun projection is the number that says which.

  • Projected overrun days per unit
  • Scored against its own outage history
  • MW-days the market has not priced