Sweden's nuclear reactors right now
Oskarshamn 3
Current power
1,425
/ 1,450 MW
Uniper SE
Fortum Sweden AB
Ringhals 3
Current power
0
/ 1,074 MW
Vattenfall AB
Sydkraft Nuclear Power AB
Message details
Ringhals 4
Current power
0
/ 1,134 MW
Vattenfall AB
Sydkraft Nuclear Power AB
All messages(2)
Forsmark 1
Current power
174
/ 1,103 MW
Vattenfall AB
Mellansvensk Kraftgrupp AB
Sydkraft Nuclear Power AB
Forsmark 2
Current power
1,081
/ 1,121 MW
Vattenfall AB
Mellansvensk Kraftgrupp AB
Sydkraft Nuclear Power AB
Forsmark 3
Current power
1,114
/ 1,172 MW
Vattenfall AB
Mellansvensk Kraftgrupp AB
Sydkraft Nuclear Power AB
Nuclear power in Sweden: current reactor status
Sweden has six nuclear reactors in commercial operation at three power plants: Ringhals 3 and 4 in Halland, Forsmark 1, 2 and 3 in Uppland, and Oskarshamn 3 in Småland. This page shows how much electricity Sweden's nuclear plants are generating right now, which reactors are online, and which are down for maintenance or an outage – in one independent view.
Nuclear power in Sweden
Nuclear power supplies roughly 30 percent of Sweden's electricity and, together with hydropower, forms the backbone of the Swedish power system. The six reactors have a combined capacity of about 7,000 MW and deliver dispatchable baseload power year-round, primarily to southern and central Sweden where demand is highest.
At its peak Sweden operated twelve reactors. Barsebäck 1 and 2, Oskarshamn 1 and 2, and Ringhals 1 and 2 have been shut down, the most recent in 2020. Nordic Nuclear Power is an independent data service that compiles operator production data and Nord Pool market messages, with no ties to energy companies or advocacy groups.
Sweden's nuclear power plants
Ringhals nuclear power plant
Ringhals nuclear power plant, located in Varberg, Hallands län, operates two pressurized water reactors (PWR). Ringhals 3 and Ringhals 4 are among Sweden's most powerful reactors, with a combined capacity of 2,200 MW. These Westinghouse-designed PWRs provide reliable baseload power to southern Sweden.
Varberg, Hallands län, Sweden
Pressurized Water Reactors (PWR)
Vattenfall AB, Sydkraft Nuclear Power AB
Forsmark nuclear power plant
Forsmark nuclear power plant, situated in Östhammar, Uppsala län, operates three boiling water reactors (BWR). As Sweden's largest nuclear facility, Forsmark provides significant electricity generation capacity to central and northern Sweden. Forsmark 1 was commissioned in 1980, followed by Forsmark 2 (1981) and Forsmark 3 (1985), making the facility one of Sweden's most established nuclear power plants.
Östhammar, Uppsala län, Sweden
Boiling Water Reactors (BWR)
Vattenfall AB, Mellansvensk Kraftgrupp AB, Sydkraft Nuclear Power AB
Oskarshamn nuclear power plant
Oskarshamn nuclear power plant, located in Oskarshamn, Kalmar län, operates one boiling water reactor (BWR). Oskarshamn 3 is Sweden's most powerful single reactor unit, with a capacity of 1,450 MW. This reactor plays a vital role in supplying electricity to southeastern Sweden.
Oskarshamn, Kalmar län, Sweden
Boiling Water Reactor (BWR)
Uniper SE, Fortum Sweden AB
Frequently asked questions about Swedish nuclear power
Which nuclear power plants are there in Sweden?
Three plants are in operation: Ringhals near Varberg, Forsmark in Östhammar municipality, and Oskarshamn at Simpevarp. Barsebäck in Skåne is closed and being decommissioned.
How many nuclear reactors are operating in Sweden?
Sweden currently operates six nuclear reactors across three power plants: two at Ringhals, three at Forsmark, and one at Oskarshamn.
How much electricity does nuclear power provide in Sweden?
Nuclear power provides approximately 30 percent of Sweden's total electricity generation, making it one of the largest sources of electricity in the country.
What types of nuclear reactors are used in Sweden?
Sweden uses both pressurized water reactors (PWR) at Ringhals and boiling water reactors (BWR) at Forsmark and Oskarshamn. Each type has different design characteristics but both are proven, safe technologies.
Who operates Sweden's nuclear power plants?
Sweden's nuclear plants are operated by Vattenfall (Ringhals and Forsmark) and OKG (Oskarshamn), which in turn is owned by Uniper and Fortum. Several plants have shared ownership between the energy companies.
How often is the nuclear power data updated?
The data on this page is updated every 10 minutes, providing near real-time information about reactor status and power output.
Data sources and reliability
All power data presented on this page comes directly from official operators. Data related to maintenance and outages comes from the Nord Pool UMM platform (Urgent Market Messages), a European platform for sharing information about maintenance and outages on the power grid. This ensures accurate, up-to-date information about Sweden's nuclear power generation.
Data sources include Vattenfall AB, OKG (Oskarshamn Kraftgrupp), and the Nord Pool UMM Platform, providing comprehensive coverage of all Swedish nuclear reactors.