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Genkai nuclear power plant 1

Retired Japan
Gross capacity
559MW

Genkai nuclear power plant 1 is a pressurised water reactor unit at Genkai nuclear power plant in Japan rated at 559 MW gross. It is retired. Commercial operation began 15 Oct 1975.

Specification
Reactor type Pressurised water reactor (PWR)
ModelM (2-loop)
Size classLarge
CoolantLight water
ModeratorLight water
Gross capacity559MW
Net capacity (reference)529MW
Net capacity (design)529MW
Thermal output1,650MWt
Typical enrichment3–5% U-235
Ownership & location
SiteGenkai nuclear power plant
Unit1
CountryJapan
OwnerKyushu Electric Power Co Inc100%
OperatorKyushu Electric Power
Coordinates 33.5152, 129.8360
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Fabricator capability is recorded against reactor type and model line, not against named units — utilities do not publish fuel contracts.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. 15 Sep 1971Construction start
  2. 28 Jan 1975First criticality
  3. 14 Feb 1975Grid connection
  4. 15 Oct 1975Commercial operation
  5. 27 Apr 2015Permanent shutdown

Other units at Genkai nuclear power plant

UnitStatusGross MW
Genkai nuclear power plant 2 Retired 559
Genkai nuclear power plant 3 Operating 1,180
Genkai nuclear power plant 4 Operating 1,180

Other M (2-loop) units

7 units worldwide share this model designation.

UnitCountryStatusGross MW
Genkai nuclear power plant 2 Japan Retired 559
Ikata nuclear power plant 1 Japan Retired 566
Ikata nuclear power plant 2 Japan Retired 566
Mihama nuclear power plant 2 Japan Retired 500
Tomari nuclear power plant 1 Japan Mothballed 579
Tomari nuclear power plant 2 Japan Mothballed 579

Sources