Isar
Reactor Data
Reactor Units
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 permanent shutdown.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Isar 1 | BWR | BWR-69 | 878 | 1972-05-01 | 1977-12-03 | 1979-03-21 | 2011-08-06 | Permanent Shutdown |
| Isar 2 | PWR | Konvoi | 1,410 | 1982-09-15 | 1988-01-22 | 1988-04-09 | 2023-04-15 | Permanent Shutdown |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Isar 1 | 870 | 912 | 2,575 | 1977-11-20 | KRAFTWERK UNION, AG | KRAFTWERK UNION, AG | Decommissioning from 2017-04-01 |
| Isar 2 | 1,285 | 1,485 | 3,950 | 1988-01-15 | KRAFTWERK UNION, AG | KRAFTWERK UNION, AG | Decommissioning from 2024-03-28 |
Lifetime performance, through 2025
| Unit | Electricity Supplied | Load Factor | Energy Availability | Operating Factor |
|---|---|---|---|---|
| Isar 1 | 198.3 TWh | 78.6% | 83.3% | 86.0% |
| Isar 2 | 382.7 TWh | 89.8% | 92.4% | 93.5% |
Operator: PreussenElektra GmbH
Owner: PreussenElektra GmbH
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-19.
Fuel Cycle Facilities
Fuel cycle plants at this site, as listed in the IAEA Nuclear Fuel Cycle Facilities Database: what each plant does, its scale and design capacity, the years it operated, its current status and who operates it.
1 facility: 1 in operation.
| Facility | Type | Scale | Design Capacity | Operated | Status | Operator |
|---|---|---|---|---|---|---|
| Isar NPP On-site Storage Facility | AFR Dry Spent Fuel Storage | Commercial | 1500 t HM | 2007– | In Operation | BundesGesel,Germany |
Source: IAEA Nuclear Fuel Cycle Facilities Database (NFCFDB), as of 2026-10-13.
Working Here
Per Diem Rates FY 2026
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.
$237
Lodging/Night
$140
M&IE/Day
$377
Total/Day
Germany: 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
Photos of this facility from the NukeWorker photo gallery. Click the header or any photo to browse the full album.
Facility Map
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.
48.6039, 12.2938
Location & Contact
Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Plant Facts
About This Site
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: Isar Nuclear Power Plant.
Isar is a nuclear power plant on the Isar River at Essenbach in Bavaria, Germany, about 14 km from Landshut.
Read more
Construction of the plant began in 1971. Unit 1 was a boiling water reactor, connected to the grid on 3 December 1977. Unit 2 was a pressurized water reactor of the Konvoi design, connected on 22 January 1988. Unit 1 was taken off line during the March 2011 moratorium that followed the Fukushima accident and was permanently shut down on 6 August 2011. Unit 2 was permanently shut down on 15 April 2023 at the end of the German nuclear phase-out.