NukeGryd
The Operating Record

Reliability Board

33 operating reactors in Southern, MISO, SRP, Duke Progress, BPA, FPL, scored on how they actually run and ranked against each other. Built from 27 years of daily reactor records.
Filtered to Southern MISO SRP Duke Progress BPA FPL Show all markets
See how every reactor actually runs Individual · $165/mo

One 0-100 score per unit, with sub-scores for reliability, efficiency and discipline, ranked against the fleet and against comparable units rather than against the whole fleet.

  • 33 units scored and ranked
  • Capacity factor and forced-outage days
  • Breaker-to-breaker streaks
  • Ranked against comparable units, not the whole fleet

Fleet Ranking · Southern + 5 more

# Unit Market MW Reactor type Operating record Individual
· Arkansas Nuclear 1 MISO 826 PWR █████
· Arkansas Nuclear 2 MISO 982 PWR █████
· Brunswick 1 Duke Progress 938 BWR █████
· Brunswick 2 Duke Progress 932 BWR █████
· Callaway MISO 1,190 PWR █████
· Clinton MISO 1,079 BWR █████
· Columbia Generating Station BPA 1,151 BWR █████
· Farley 1 Southern 895 PWR █████
· Farley 2 Southern 896 PWR █████
· Fermi 2 MISO 1,141 BWR █████
· Grand Gulf 1 MISO 1,397 BWR █████
· Harris 1 Duke Progress 964 PWR █████
· Hatch 1 Southern 876 BWR █████
· Hatch 2 Southern 883 BWR █████
· Monticello MISO 617 BWR █████
· Palo Verde 1 SRP 1,311 PWR █████
· Palo Verde 2 SRP 1,314 PWR █████
· Palo Verde 3 SRP 1,312 PWR █████
· Point Beach 1 MISO 589 PWR █████
· Point Beach 2 MISO 597 PWR █████
· Prairie Island 1 MISO 521 PWR █████
· Prairie Island 2 MISO 519 PWR █████
· River Bend 1 MISO 968 BWR █████
· Robinson 2 Duke Progress 759 PWR █████
· Saint Lucie 1 FPL 981 PWR █████
· Saint Lucie 2 FPL 987 PWR █████
· Turkey Point 3 FPL 837 PWR █████
· Turkey Point 4 FPL 844 PWR █████
· Vogtle 1 Southern 1,150 PWR █████
· Vogtle 2 Southern 1,152 PWR █████
· Vogtle 3 Southern 1,114 AP1000 █████
· Vogtle 4 Southern 1,114 AP1000 █████
· Waterford 3 MISO 1,087 PWR █████
Rel / Eff / Disc are the three sub-scores behind the composite: whether a unit stays on line, whether it uses fuel and outage time well, and whether it comes back cleanly. Scores recomputed today; the underlying daily reactor record updates every morning. Click any column heading to re-rank.

By Market

how a reactor in each market typically behaves
MarketUnitsGWAvg score Forced d / unitB2B championsAvg overrun BestWeakest
MISO 13 11.5 ██ ██ ██ ██ ██ ██
Southern Non-ISO 8 8.1 ██ ██ ██ ██ ██ ██
SRP Non-ISO 3 3.9 ██ ██ ██ ██ ██ ██
FPL Non-ISO 4 3.6 ██ ██ ██ ██ ██ ██
Duke Progress Non-ISO 4 3.6 ██ ██ ██ ██ ██ ██
BPA Non-ISO 1 1.2 ██ ██ ██ ██ ██ ██
Averages are unweighted across the units in each market. Capacity weighting would let two large reactors answer for a whole market; this column answers "how does a unit here typically behave", which is the question the heading asks.
A good record is not the same as a firm date Pro · $499/mo

The reliability score says how a unit behaves. The risk radar says what that behavior is about to cost: projected overrun days on every upcoming outage, and the megawatt-days the market has not priced.

  • Projected overrun per unit
  • Forced-outage exposure screen
  • MW-days at risk by market
  • Scored against its own history