Swedish Nuclear Reactors Overview
Oskarshamn 3
Current power
1,377
/ 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
1,058
/ 1,103 MW
Vattenfall AB
Mellansvensk Kraftgrupp AB
Sydkraft Nuclear Power AB
Forsmark 2
Current power
1,078
/ 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
Nordic Nuclear Power: current reactor status
Nordic Nuclear Power currently monitors Sweden's six operating nuclear reactors at Ringhals, Forsmark, and Oskarshamn. Follow current power output, reactor status, and published maintenance and outage notices in one independent view.
About Nordic Nuclear Power
Nordic Nuclear Power makes technical nuclear operations data clear and accessible. The service is editorially and organizationally independent of energy companies, public authorities, political parties, and advocacy groups.
Coverage includes the reactors in commercial operation in Sweden and Finland. The country selector makes the current geographic scope explicit and presents the data in a shared format.
Swedish Nuclear Reactors Overview
Ringhals
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
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
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
How much electricity does nuclear power provide in Sweden?
Nuclear power provides approximately 30% of Sweden's total electricity generation, making it one of the largest sources of electricity in the country.
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.
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.
How often is the nuclear power data updated?
The data on this dashboard is updated every 10 minutes, providing near real-time information about reactor status and power output.
Who operates Sweden's nuclear power plants?
Sweden's nuclear plants are operated by major energy companies including Vattenfall AB, Uniper SE, and Fortum Sweden AB, with some plants having multiple operating partners.
Data Sources and Reliability
All power data presented on this dashboard comes directly from official operators. Data related to maintenance and outages comes from the Nord Pool UMM platform (Unplanned 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.