Nuclear Power Plants in Finland and Sweden
Location: Sweden
Operator: Vattenfall
Configuration: 1 X 12 MW PHWR CHP
Operation: 1964 (ret)
Reactor supplier: ASEA
T/G supplier: ??
Quick facts: This installation in Stockholm's southern Farsta suburb was Sweden's first reactor and one of the only nuclear plants ever used for district heating. Thermal capacity was 105 MWt. Construction began in 1957 and the unit was declared commercial 1 May 1964. The unit used natural uranium and heavy water from Norway and operated for 52,000hr. The reactor and electromechanical equipment were housed inside a rock cavern blasted out of a hillside with a cooling tower placed outside on the hilltop. The two steam generators have been removed but much of the rest of the equipment is intact in safe storage conditions.

Photograph by Pierre Mens Ake Dahllof and Emma Holmbro
Posted 15 Feb 2009

Location: Sweden
Operator: Barsebäck Kraft AB
Configuration: 2 X 615 MW BWR
Operation: 1975-1977 (ret)
Reactor supplier: ASEA
T/G supplier: Stal, ASEA
EPC: ASEA, Vattenfall, Skansa
Quick facts: This site was acquired in 1965 by Sydkraft and the first unit ordered from Asea-Atom in 1969. Criticality on Unit-1 was 18 Jan 1975 and Unit-2 was connected on 21 Mar 1977. In 1997, the Swedish government passed an Act giving them the right to order Swedish nuclear plants to close under certain circumstances. Despite opposition from the power companies and other industries, the government uses the Act order the Barsebäck units to close in 1998 and 2001, respectively. The closures were delayed somewhat, but Unit-1 was taken offline 30 Nov 1999. In 2002, a large-scale modernization program was completed on the Unit-2, and in 2004, the unit had its best year ever with generation of 4.7 TWh. Unit-2 was closed permanently on 31 May 2005.

Photograph by Pierre Mens and courtesy of Vattenfall
Posted 16 Nov 2004

Location: Sweden
Operator: Vattenfall AB
Configuration: 1 X 1,030 MW, 1 X 1,010 MW, 1 X 1,200 MW BWR
Operation: 1980-1985
Reactor supplier: ASEA
T/G supplier: Stal, ASEA
EPC: Vattenfall, ASEA
Quick facts: The Forsmark site is on the east coast of Upplands. Unit-3 has been uprated to about 1,360 MW with testing underway to determine the final value.

Photograph by Hans Blomberg and courtesy of Vattenfall
Posted 28 Apr 2004

Location: Finland
Operator: Fortum Power & Heat
Configuration: 2 X 510 MW PWR
Operation: 1977-1981
Reactor supplier: Atomenergoexport
T/G supplier: Kharkov, Electrosila
Quick facts: In 2009, Loviisa produced 8.16 TWh of electricity with an availability factor of 95.7%, both records for the plant. The site is on the Baltic about 80km from Helsinki. In 2008/09, Fortum completed the first phases of a major retrofit of digital automation for control and monitoring activities. In Feb 2009, Fortum submitted to the government an application for a decision-in-principle concerning the construction of a third unit at Loviisa.

Photograph courtesy of Fortum Oy
Posted 17 Sep 2001

Location: Finland
Operator: Teollisuuden Voima Oy
Configuration: 2 X 860 MW BWR
Operation: 1979-1982 
Reactor supplier: Asea
T/G supplier: BBC, Stal
Quick facts: Both existing units have been uprated and had their best output year to that date in 2013 producing 14.63 TWh with a plant load factor of 95.1%.

Photograph courtesy of Teollisuuden Voima Oy
Posted 18 Apr 2004

Location: Finland
Operator: Teollisuuden Voima Oy
Configuration: 1 X 1,720 MW PWR
Operation: 2018
Reactor supplier: Areva
T/G supplier: Siemens
EPC: Areva, Siemens
Quick facts: On 18 Dec 2003, TVO signed a turnkey contract for the OL-3 project with a consortium of Framatome and Siemens AG (later Areva NP). TVO took responsibility for licensing, site preparation, excavation, plus the switchyard, cooling water intake and outfall, pier, and ancillary buildings. The construction license was issued on 17 Feb 2005 and first structural concrete was poured in Mar 2005. Total investment by the owner was fixed at €3bn, but in 2012, it was reported that the cost would be some €8.5bn. This is the largest-ever industrial project in Finland. Photo is from Mar 2013.

Photograph courtesy of Teollisuuden Voima Oy
Re-posted 1 May 2013

Location: Sweden
Operator: OKG AB
Configuration: 1 X 465 MW (ret), 1 X 635 MW (ret), 1 X 1,450 MW BWR
Operation: 1972-1985
Reactor supplier: ASEA
T/G supplier: BBC
Quick facts: ASEA obtained the contract for O1 on 14 July 1965 and the unit was inaugurated by King Gustaf VI Adolf on 18 May 1972. In 1973, plans for a 1,000-MW third unit at Oskarshamn were submitted and an order was placed with Asea-Atom/Stal-Laval. The start date for construction was postponed until a 1980 referendum. Unit-3 was connected to the grid on 3 Mar 1985, about 7mos past schedule. Maximum capacity at 1,050 MW, was reached on 27 May 1985. A power upgrade to 1,200 MW was completed in 1989. During 2011, a second uprate project was finished which increased O3's capacity to 1,450 MW using new turbines, a new main circulation system, plus a new generator and transformer. Unit-3 original construction cost was SEK 11bn including first fuel load. Unit-2 was closed for modernization in Jun 2013, but did not restart and was officially closed Oct 2015. Unit-1 was retired on 19 Jun 2017 after 45yrs of service and the generation of 110 TWh of electricity during 11,000 days of operation. OKG is owned by Uniper (54.5%) and Fortum (45.5%).

Photograph courtesy of OKG AB
Posted 28 Apr 2004

Location: Sweden
Operator: Ringhals AB
Configuration: 1 X 865 MW BWR, 1 X 910 MW, 1 X 1,088 MW, 1 X 968 MW PWR
Operation: 1976-1983
Reactor supplier: ASEA, WH
T/G supplier: EE, GEC, Stal, BBC
EPC: Vattenfall, ASEA
Quick facts: Ringhals is located in Halland Co on Sweden’s west coast south of Gothenburg. The plant can supply up to 20% of Sweden’s electricity and is a major local industrial center with 1,500 employees and annual turnover of about 5.6bn kroner. Ringhals AB is owned by Vattenfall (70.4%) and E. ON (29.6%).

Photograph courtesy of Vattenfall
Posted 6 Jan 2010


Data: industcards, Platts UDI World Electric Power Plants Data Base

Updated 21-Jun-2017