Facts about Barsebäcksverket

Facts and technical data relating to Barsebäcksverket’s two decommissioned reactors.

Our plant
Data	Barsebäck 1	Barsebäck 2
Construction start	1971	1973
Commercial operation	15 maj 1975	1 juli 1977
Gross capacity	615 MW	615 MW
Permanent shutdown	30 november 1999	31 May 2005
Electricity supplied	93,8 TWh	108 TWh

Technical data Barsebäck

Worth knowing about our facilities
Net output (electricity)	600 MW
Reactor type	Boiling water reactor
Reactor supplier	Asea-Atom
Turbine supplier	Stal-Laval
Commercial operations	B1 1975, B2 1977

Key data pertaining to full output
Thermal reactor output	1800 MW
Number of circulation circuits	4
Operating pressure	70 bar
Total reactor cooling water flow	7,700 kg/s
Steam flow	900 kg/s
Steam pressure	7.0 MPa
Steam temperature	286°C
Feedwater temperature	184°C

Reactor vessel
Weight	530 tons
Total height	20 m
Inner diameter	5.45 m
Material thickness	12.6 cm

Fuel elements
Number of fuel elements in reactor core	444
Fuel weight per element	UO2 181/172 kg
Number of fuel rods per element	100/96
Sealing material	Zr2
Pellet diameter	8.19 mm

Control rods
Type	cruciform blade
Number	109
Absorber material	hafnium, boron carbide
Control drive type	electro-hydraulic

Circulation pumps
Type	enclosed centrifugal pumps
Number	4
Flow	2.55 m³/s
Lifting height	55 m

Turbine

In-depth data about the turbine units. One unit per block. One turbine unit is connected to the reactor. The turbine unit consists of one high-pressure turbine and three low-pressure turbines that are mounted on the same shaft as the generator.
The turbine buildings also contain the condenser, cooling water and feedwater pumps.

Net output	615 MW
Coefficient of utilization	33.7%
Steam flow	813 kg/s
Moisture content in primary steam	0.004%

Steam data
Pressure/temperature before high-pressure turbine, MPa/°C	6.1/284°C
Pressure/temperature after high-pressure turbine, MPa/°C	0.65/162°C
Pressure/temperature before low-pressure turbine, MPa/°C	0.62/256°C
Pressure/temperature in condenser, MPa/°C	0.043/30°C
External moisture separator and intermediate overheating up to 256°C
Number of outlets and area per turbine	6x8.5 m²
Outlet blade length	95 cm
Number of revolutions	3,000 rpm
Flow, condenser cooling water	22.2 m³/s
Temperature increase in condenser cooling water	11.8°C
Cooling water pumps/turbine	4
Dumping capacity	100%
Total length of turbine unit:	50 m

Electrical equipment

Key facts about the electricity generator, transformer and reserve-power diesels.
An electricity generator is linked to each turbine at Barsebäck.
With two turbines – one on each block – there were two generators.

Electricity generator
Brand	ASEA
Number	1
Force output	620 MW
Rated voltage	17.5 kV
Rated output	710 MVA
Stator cooling	water
Rotor cooling	water

Main transformer
Number	1
Rated voltage	17.5/410 kV
Rated output	700 MVA

Diesel generators
Number	4
Motor manufacturer	MTV
Nominal output	1,600 kW
Rated voltage	6.3 kV
Rated output	2.1 MVA
Number of revolutions	1,500 rpm

Decommissioning and demolition

Since April 2020, Barsebäcksverket has been undergoing dismantling and demolition. The dismantling process and removal of radioactive materials and large components within the plant will continue until 2028.
The directives of the Swedish Radiation Safety Authority (SSM) continue to impose stringent requirements on our operations – we are still classified as a nuclear facility, even if the power plant is shut down and no nuclear fuel remains.
We are also working with the handling and transportation of operational waste to the SFR final repository in Forsmark, and thereby continuously reducing the range of activities at the plant.
We are also continuing with our sales operations – components that we no longer need can in some cases be reused in other nuclear facilities or for other industries.

Find out more

How electricity is generated at a nuclear power plant

The method used for generating electricity in a nuclear power plant is the same as with a coal power plant or a bioenergy power plant.

FAQs

Here are some answers to frequently asked questions from our visitors. Read more about everything from radioactive waste to how we impact the environment around us.