Environmental Preservation Measures at Kaminoseki
Plan Outline of the Kaminoseki Nuclear Power Station
Power station construction plan
Nagashima, Oaza, Kaminoseki-cho, Kumage-gun, Yamaguchi Prefecture
The planned construction site for this power station faces the Seto Inland Sea on the westernmost tip of Nagashima in Kaminoseki-cho, Kumage-gun in the southeast corner of Yamaguchi Prefecture.
Power station outline
|Unit 1||Advanced boiling water reactor (ABWR)||1.373 million kW|
|Unit 2||1.373 million kW|
Power station site
A.Area of power station site
Approximately 1.6 million m2 (area reclaimed from the sea: approximately 140,000m2)
B.Area of power station facilities
Construction process (planned)
|Start of plan||Start of construction||Start of commercial operations|
|Unit 1||June 2001||undetermined||undetermined|
|Unit 2||June 2001||undetermined||undetermined|
(According to the 2012 power supply plan)
Arrangement Plan and Facility Outline for the Kaminoseki Nuclear Power Station
Overall power station arrangement plan
|Kaminoseki Nuclear Power Station|
|Units 1 and 2 (planned)|
|Nuclear reactor||Model||Advanced boiling water reactor (ABWR)|
|Thermal output||39.26 million kW|
|Pressure, temperature||Approximately 72 atm, 287°C (at outlet)|
|Number of fuel assemblies||872|
|Containment vessel||Type||Pressure suppression system|
|Turbine||Type||Tandem-compound 6-flow exhaust condensing type (reheating type)|
|Output||1.373 million kW|
|Rotation speed||1,800 rpm|
|Steam flow||Approximately 7,300 tons/hour|
|Generator||Type||Quadrature-axis cylindrical revolving-fiel
|Capacity||1.53 million kVA|
(According to the 2012 power supply plan)
Biodiversity and Environmental Preservation at the Kaminoseki Nuclear Power Station
This pamphlet introduces our efforts for the preservation of biodiversity during the construction and operation of the Kaminoseki Nuclear Power Station.
Harmony with the Natural Environment [PDF 3.5MB]
Some of the details of these efforts are described below.
Terrestrial Environmental Preservation Measures
Environmental Preservation Measures for Terrestrial Life
In order to reduce the impact on the natural habitats of terrestrial life, the area of altered land and the range of tree trimming and cutting will be kept to the required minimum, as we make every effort to preserve the existing plant life. In addition, we will introduce plant life that matches the feeding patterns of local birds.
Further, before starting tree trimming and cutting work in the region to be altered, we will check for the presence of precious fauna and flora species. If any are discovered, they will be moved or transplanted to similar environments outside of the region to be altered.
Environmental Preservation Measures in Nearby Marine Areas
This power station will be arranged so that the area for land reclamation can be limited to the required minimum of approximately 140,000 m2. Further, we will make every effort to preserve marine areas through the use of a "deep-water intake method/underwater discharge system" (which reduces the area in which thermal effluent is discharged) as a method for the intake and discharge of cooling water, and keep the volume of sodium hypochlorite injected into the intake to the required minimum.
Environmental Preservation Measures for Marine Life
Shellfish (family cornirostridae)
(This species has high academic value for research in the process of shellfish evolution.)
This species is an extremely small shellfish of only a few millimeters that is said to show the process of evolution in shellfish. It makes its home on the undersides of rocks in tide pools.
- This species has been discovered throughout a wide area from Iyonada to Suounada through surveys performed by Chugoku Electric Power.
- Sites (and nearby tide pools) originally designated reclamation, but that are now confirmed habitats for shellfish, will be preserved.
- During construction, barriers to prevent the dispersal of contaminants will be installed in front of tide pools.
- Natural rock barriers will be built in front of preserved tide pools to reduce waves and allow the flow of water.
- Follow-up surveys will be performed at preserved tide pools.