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Sizewell nuclear power plant B

Operating United Kingdom
Gross capacity
1,250MW

Sizewell nuclear power plant B is a pressurised water reactor unit at Sizewell nuclear power plant in United Kingdom rated at 1,250 MW gross. It is operating. Commercial operation began 22 Sep 1995.

Specification
Reactor type Pressurised water reactor (PWR)
ModelSNUPPS
Size classLarge
CoolantLight water
ModeratorLight water
Gross capacity1,250MW
Net capacity (reference)1,198MW
Net capacity (design)1,188MW
Thermal output3,425MWt
Typical enrichment3–5% U-235
Ownership & location
SiteSizewell nuclear power plant
UnitB
CountryUnited Kingdom
OwnerEDF Energy Ltd100%
OperatorEDF Energy
Coordinates 52.2145, 1.6206
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
Upstream

Enriched fuel means this unit sits downstream of five conversion plants and four enrichment operators holding 88% of world capacity between the top three.

RosatomUrencoCNNCOrano
Conversion
CamecoCNNCConverDynOranoRosatom
Fabricator capability is recorded against reactor type and model line, not against named units — utilities do not publish fuel contracts. See the fuel chain.

Timeline

  1. 18 Jul 1988Construction start
  2. 31 Jan 1995First criticality
  3. 14 Feb 1995Grid connection
  4. 22 Sep 1995Commercial operation

Other units at Sizewell nuclear power plant

UnitStatusGross MW
Sizewell nuclear power plant A1 Retired 245
Sizewell nuclear power plant A2 Retired 245
Sizewell nuclear power plant C1 Pre-construction 1,600
Sizewell nuclear power plant C2 Pre-construction 1,600

Sources