Germany · 48.605, 12.299Isar
Isar, nuclear power plant in Germany, operated 3 reactors: 1 boiling water, 1 heavy water gas-cooled and 1 pressurized water between 1973 and 2023 and is now shut down.
- Country
- Germany
- Units
- 3
- Technology
- BWR · HWGCR · PWR
- Net capacity
- —
- First grid connection
- 1973
- Operator
- PreussenElektra · Kernkraftwerk Niederaichbach
- Owner
- PreussenElektra GmbH · Karlsruhe Institute For Technology
- Status
- Shut down
See also: alerts for this plant · every plant in Germany · Vendor: Siemens / Kraftwerk Union · every BWR reactor · how a BWR works · every HWGCR reactor · every PWR reactor · how a PWR works
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Isar 1 | Boiling water (BWR) | KWU BWR, '69 design line (BWR-69) | Shut down | 878 | 2,575 | May 1, 1972 | Dec 1977 | Aug 2011 | — |
| Niederaichbach 1 | Heavy water gas-cooled (HWGCR) | pressure tube reactor | Shut down | 100 | — | 1966 | 1973 | 1974 | — |
| Isar 2 | Pressurized water (PWR) | Konvoi (Siemens-KWU) (Konvoi) | Shut down | 1,410 | 3,950 | Sep 1982 | Jan 1988 | Apr 2023 | — |
Data: IAEA PRIS · Global Energy Monitor · Wikipedia · updated on Sep 17, 2026
Isar 1, an 878 MWe BWR (KWU BWR, '69 design line (BWR-69)), started construction in 1972 and operated from 1977 to 2011.
Niederaichbach 1, a 100 MWe HWGCR (pressure tube reactor), started construction in 1966 and operated from 1973 to 1974.
Isar 2, a 1,410 MWe PWR (Konvoi (Siemens-KWU) (Konvoi)), started construction in 1982 and operated from 1988 to 2023.
Operator: PreussenElektra (Isar 1, Isar 2) · Kernkraftwerk Niederaichbach (Niederaichbach 1).
Owner: PreussenElektra GmbH (Isar 1, Isar 2) · Karlsruhe Institute For Technology (Niederaichbach 1).