Beznau

Technical specifications, photos, nearby jobs, and satellite map for Beznau.

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Reactor Data

Reactor Units

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Every power reactor at this site as listed in the IAEA Power Reactor Information System (PRIS): reactor type and model, net electrical capacity, grid connection and commercial operation dates, and current status.
2 units: 2 operational. Net capacity in service: 730 MWe.
Unit Type Model Net MWe Construction Grid Commercial Op Shutdown Status
Beznau 1 PWR WH 2LP 365 1965-09-01 1969-07-17 1969-12-09 Operational
Beznau 2 PWR WH 2LP 365 1968-01-01 1971-10-23 1972-03-04 Operational
Capacity, milestones and suppliers
Unit Design MWe Gross MWe Thermal MWt First Criticality Reactor Supplier Turbine Supplier Notes
Beznau 1 350 380 1,130 1969-06-30 WESTINGHOUSE ELECTRIC CORPORATION BROWN BOVERI ET CIE
Beznau 2 350 380 1,130 1971-10-16 WESTINGHOUSE ELECTRIC CORPORATION BROWN BOVERI ET CIE
Lifetime performance, through 2025
Unit Electricity Supplied Load Factor Energy Availability Operating Factor
Beznau 1 141.5 TWh 80.6% 80.9% 82.5%
Beznau 2 148.8 TWh 87.8% 87.5% 88.8%
Operator: Kernkraftwerk Beznau CH-5312 Döttingen
Owner: Kernkraftwerk Beznau CH-5312 Döttingen
Source: IAEA Power Reactor Information System (PRIS), as of 2026-11-02.

Working Here

Per Diem Rates FY 2026

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Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from the U.S. State Department foreign per diem tables for FY 2026.
$292
Lodging/Night
$195
M&IE/Day
$487
Total/Day
Switzerland: rate for locations the State Department does not list separately
U.S. Department of State foreign per diem, for U.S. government and contractor travel.

Photos

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Photos of this facility from the NukeWorker photo gallery. Click the header or any photo to browse the full album.

Facility Map

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Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.

47.5521, 8.22796

Location & Contact

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Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Address:
Döttingen, Aargau, Switzerland
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Plant Facts

About This Site

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Written by NukeWorker from public records: facts that do not change. Operator, status and capacity come from the live data elsewhere on this page. Sources: Wikipedia: Beznau Nuclear Power Plant.

Beznau is a nuclear power plant on an artificial island in the Aare river at Döttingen, in the canton of Aargau, Switzerland.

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The Swiss authorities approved the island as a reactor site in December 1964. Two near-identical Westinghouse pressurized water reactors were built. Construction of Beznau 1 started in September 1965, and the unit was connected to the grid on 17 July 1969 and began commercial operation in December 1969, as the first commercial nuclear power reactor in Switzerland. Construction of Beznau 2 began in January 1968, and it was connected to the grid on 23 October 1971 and entered commercial operation in March 1972. In 1984 the plant began supplying the Refuna district heating system.