Isar nuclear power plant 1
Retired Germany
Gross capacity
912MW
Isar nuclear power plant 1 is a boiling water reactor unit at Isar nuclear power plant in Germany rated at 912 MW gross. It is retired. Commercial operation began 21 Mar 1979.
Specification
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | BWR-69 |
| Size class | Large |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 912MW |
| Net capacity (reference) | 878MW |
| Net capacity (design) | 870MW |
| Thermal output | 2,575MWt |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Isar nuclear power plant |
|---|---|
| Unit | 1 |
| Country | Germany |
| Owner | PreussenElektra GmbH100% |
| Operator | PreussenElektra |
| Coordinates | 48.6048, 12.2988 |
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
- Framatome BWR fuel assemblies
- Global Nuclear Fuel BWR fuel assemblies
- Westinghouse Electric Company BWR fuel assemblies
Upstream
Enriched fuel means this unit sits downstream of five conversion plants and four enrichment operators holding 88% of world capacity between the top three.
Fabricator capability is recorded against reactor type and model line, not against named units —
utilities do not publish fuel contracts. See the fuel chain.
Timeline
- 1 May 1972Construction start
- 20 Nov 1977First criticality
- 3 Dec 1977Grid connection
- 21 Mar 1979Commercial operation
- 6 Aug 2011Permanent shutdown
Other units at Isar nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Isar nuclear power plant 2 | Retired | 1,485 |
Other BWR-69 units
4 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Brunsbuettel nuclear power plant | Germany | Retired | 806 |
| Kruemmel nuclear power plant | Germany | Retired | 1,402 |
| Philippsburg nuclear power plant 1 | Germany | Retired | 926 |
Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release — CC BY 4.0 · retrieved 2026-09-06 · this unit last researched by GEM on 2024-05-14
- GEM.wiki entry (further reading) — CC BY-SA 4.0 — linked, not quoted