Forsmark nuclear power plant
Forsmark nuclear power plant is a nuclear power station in Sweden with 3 operating units totalling 3,446 MW gross. The site has 3 units on record in total.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit 1 | BWR | AA-III, BWR-2500 | 1,078 | 1980 | |
| Unit 2 | BWR | AA-III, BWR-2500 | 1,160 | 1981 | |
| Unit 3 | BWR | AA-IV, BWR-3000 | 1,208 | 1985 |
Unit by unit
Each unit's rating, type and milestone dates as recorded by the Global Nuclear Power Tracker, with any correction we made to it. A dash or "not disclosed" means the source does not give the value.
Forsmark nuclear power plant 1
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | ASEA-Atom BWR |
| Size class | Large |
| Gross capacity | 1,078MW |
| Net capacity | 1,040MW |
| Thermal output | 3,075MWt |
| Enrichment | 3–5% U-235 |
| NSSS vendor | not on record |
| Owner | Forsmark Kraftgrupp AB100% |
| Operator | Forsmark Kraftgrupp |
| Construction start | 1 Jun 1973 |
|---|---|
| First criticality | 23 Apr 1980 |
| Grid connection | 6 Jun 1980 |
| Commercial operation | 10 Dec 1980 |
Live status, outage record and fuel chain for Forsmark nuclear power plant 1
Forsmark nuclear power plant 2
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | ASEA-Atom BWR |
| Size class | Large |
| Gross capacity | 1,160MW |
| Net capacity | 1,121MW |
| Thermal output | 3,253MWt |
| Enrichment | 3–5% U-235 |
| NSSS vendor | not on record |
| Owner | Forsmark Kraftgrupp AB100% |
| Operator | Forsmark Kraftgrupp |
| Construction start | 1 Jan 1975 |
|---|---|
| First criticality | 16 Nov 1980 |
| Grid connection | 26 Jan 1981 |
| Commercial operation | 7 Jul 1981 |
Live status, outage record and fuel chain for Forsmark nuclear power plant 2
Forsmark nuclear power plant 3
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | ASEA-Atom BWR |
| Size class | Large |
| Gross capacity | 1,208MW |
| Net capacity | 1,172MW |
| Thermal output | 3,300MWt |
| Enrichment | 3–5% U-235 |
| NSSS vendor | not on record |
| Owner | Forsmark Kraftgrupp AB100% |
| Operator | Forsmark Kraftgrupp |
| Construction start | 1 Jan 1979 |
|---|---|
| First criticality | 28 Oct 1984 |
| Grid connection | 5 Mar 1985 |
| Commercial operation | 18 Aug 1985 |
Live status, outage record and fuel chain for Forsmark nuclear power plant 3
Forsmark nuclear power plant in context
By gross operating capacity Forsmark nuclear power plant is the 1st largest of 3 operating nuclear sites in Sweden, holding 48% of the country's operating capacity, and ranks 35th of 172 worldwide.
Its operating units started up between 1980 and 1985; the median unit is 45.0 years old, older than the median of 44.0 in Sweden.
The 3 units with both construction and grid dates on record took 6.1 to 7.0 years (median 6.2) from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.
The nearest other tracked nuclear sites are Olkiluoto nuclear power plant (200 km).
3 operating units are rated differently now from their design net capacities: Unit 1 +15.6%, Unit 2 +24.6% and Unit 3 +11.6%.
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit 1 | 1973 | 1980 | 7.0 | 7.3 (1980s) |
| Unit 2 | 1975 | 1981 | 6.1 | 7.3 (1980s) |
| Unit 3 | 1979 | 1985 | 6.2 | 7.3 (1980s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Olkiluoto nuclear power plant | Finland | 200 km | 3.6 |
How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.
Earthquakes nearby
Loading the latest USGS check…
| Time (UTC) | Mag | Depth | Epicentre | Distance |
|---|
Magnitude 4.0 and above within 200 km of Forsmark nuclear power plant's listed coordinates, past 30 days. This is distance, not shaking: it says nothing about damage or any change in operation. Every plant.
| Location | Uppsala, Sweden |
|---|---|
| Coordinates | 60.4028, 18.1744 |
| Elevation | about 30 mabove sea level |
| Setting | On the sea coast, 0.2 km from the water |
| Region | Northern Europe |
| Units by status | Operating: 3 |
Elevation is read at the listed coordinates from a 30 m terrain model (ASTER GDEM 30 m). Two independent models differ by a median of 6 m across our plants and by up to about 40 m on steep or coastal ground, and a point on a shoreline can read as sea level. Distance to the water is measured to a generalised 1:10 million coastline, so a few kilometres or less is not resolved. This is context, not a design-basis or flood-risk figure.
| Owners | Forsmark Kraftgrupp AB |
|---|---|
| Operators | Forsmark Kraftgrupp |
Put this plant on your own page: embed a card, or compare it with another plant.
Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data