Compare · Reactors & SMRs
Flamanville-3 vs Chooz B-2
RANKED BY NET ELECTRICAL OUTPUT OF ONE CURRENTLY OPERATIONAL REACTOR UNIT (MWE)
#3 VS #5
CHECKED 06 SEPT 2026
Side by side
Verdict
Flamanville-3 ranks #3 of 10 on Net electrical output of one currently operational reactor unit (MWe) (1,600 MWe); Chooz B-2 ranks #5 (1,500 MWe).
Rank 03 of 10 · leads
Net electrical output of one currently operational reactor unit (MWe)
1,600 MWe
MakerEDF (EPR)
Date2024
Verified04 Sept 2026
Evidence
EDF Flamanville 3 site: EPR of about 1,600 MWe; the three-unit site page lists 2x1300 MW + 1x1600 MW. First grid connection 21 Dec 2024. EDF 14 Dec 2025: first time at 100% nuclear thermal power, 1,669 MW gross electrical. EDF still describes industrial commissioning tests as continuing in 2026 — included because it is grid-connected and has run at full thermal power, with that caveat here.Rank 05 of 10
Net electrical output of one currently operational reactor unit (MWe)
1,500 MWe
MakerEDF (N4)
Date1997
Verified04 Sept 2026
Evidence
IAEA PRIS Reactor Details, CHOOZ B-2, Operational, model N4 REP 1450: Reference Unit Power 1500 MWe, Design Net 1455, Gross 1560, Thermal 4270 MWt. First grid 10 Apr 1997. Page last update 2026-05-28. Twin unit Chooz B-1 is the same palier; its live detail page did not render here so only B-2 is ranked from the live PRIS sheet.Try another pair
Source IAEA PRIS reactor-detail and country pages; EDF Flamanville 3 operator page
Last checked 06 Sept 2026