Structure and technical data
OL1 and OL2 can each be divided into three structural entities: the reactor building, the turbine building, and the auxiliary buildings.
The highest building at both units is the reactor building enclosing the reactor containment. The reactor is inside the containment. The reactor hall, at the top of the building, contains the reactor pool and fuel pools, pools for reactor internals, a reactor service bridge for refueling operations, and an overhead crane.
The turbine building houses the high pressure and low pressure turbines, generator, exciter, and condensers. There is one HP turbine and four LP turbines. The auxiliary buildings include the waste building and the hot workshop.
A Reactor containment building
B Reactor building
D Turbine building
E Control room building
F Waste building
H Auxiliary buildings
N Hot workshop/laboratory building(OL1 only)
P Entrance/office and staff amenities building
T Cooling water supply
X Switchgear building
Z Main transformer
Z1 Startup transformers
Technical data
| Electric power | net 890 MW |
| Reactor thermal power | 2,500 MW |
| Overall efficiency | A little more than 35% |
| Reactor working pressure | 70 bar |
| Number of fuel assemblies | 500 |
| Fuel Uranium dioxide | UO2 |
| Fuel consumption | Approximately 20 tonnes per year |
| Main steam temperature | 286°C |
| Annual electricity production | Approximately 7 TWh |
| Number of rod cluster control assemblies | 121 |
| Sea water flow rate | 38 m3/s |
| Turbine rated speed | 3,000 rpm |
| Number of turbines | 1 HP + 4 LP |