Isar nuclear power plant
Isar nuclear power plant is a nuclear site in Germany with 2 units on record. None is currently operating.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit 1 | Retired | BWR | BWR-69 | 912 | 1979 |
| Unit 2 | Retired | PWR | Konvoi | 1,485 | 1988 |
Unit by unit
Each unit's rating, type and milestone dates as recorded by the Global Nuclear Power Tracker, with any correction we made to it. A dash or "not disclosed" means the source does not give the value.
Isar nuclear power plant 1 Retired
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | BWR-69 |
| Size class | Large |
| Gross capacity | 912MW |
| Net capacity | 878MW |
| Thermal output | 2,575MWt |
| Enrichment | 3–5% U-235 |
| NSSS vendor | GE Vernova Hitachi Nuclear Energy |
| Owner | PreussenElektra GmbH100% |
| Operator | PreussenElektra |
| Construction start | 1 May 1972 |
|---|---|
| First criticality | 20 Nov 1977 |
| Grid connection | 3 Dec 1977 |
| Commercial operation | 21 Mar 1979 |
| Permanent shutdown | 6 Aug 2011 |
Isar nuclear power plant 2 Retired
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | Konvoi |
| Size class | Large |
| Gross capacity | 1,485MW |
| Net capacity | 1,410MW |
| Thermal output | 3,950MWt |
| Enrichment | 3–5% U-235 |
| NSSS vendor | not on record |
| Owner | PreussenElektra GmbH100% |
| Operator | PreussenElektra |
| Construction start | 15 Sep 1982 |
|---|---|
| First criticality | 15 Jan 1988 |
| Grid connection | 22 Jan 1988 |
| Commercial operation | 9 Apr 1988 |
| Permanent shutdown | 15 Apr 2023 |
Isar nuclear power plant in context
The 2 units with both construction and grid dates on record took 5.4 to 5.6 years (median 5.5) from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.
The nearest other tracked nuclear sites are Dukovany nuclear power plant (287 km).
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit 1 | 1972 | 1977 | 5.6 | 5.4 (1970s) |
| Unit 2 | 1982 | 1988 | 5.4 | 7.3 (1980s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Dukovany nuclear power plant | Czech Republic | 287 km | 2.0 |
How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.
| Location | Bayern, Germany |
|---|---|
| Coordinates | 48.6048, 12.2988 |
| Elevation | about 375 mabove sea level |
| Setting | About 320 km from the sea |
| Region | Western Europe |
| Units by status | Retired: 2 |
Elevation is read at the listed coordinates from a 30 m terrain model (SRTM 30 m). Two independent models differ by a median of 6 m across our plants and by up to about 40 m on steep or coastal ground, and a point on a shoreline can read as sea level. Distance to the water is measured to a generalised 1:10 million coastline, so a few kilometres or less is not resolved. This is context, not a design-basis or flood-risk figure.
| Owners | PreussenElektra GmbH |
|---|---|
| Operators | PreussenElektra |
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Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data