Oskarshamn nuclear power plant 1
Retired Sweden
Gross capacity
492MW
Oskarshamn nuclear power plant 1 is a boiling water reactor unit at Oskarshamn nuclear power plant in Sweden rated at 492 MW gross. It is retired. Commercial operation began 6 Feb 1972.
Specification
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | AA-I |
| Size | Largeabove 300 MWe |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 492MW |
| Net capacity (reference) | 473MW |
| Net capacity (design) | 440MW |
| Thermal output | 1,375MWt |
| NSSS vendor | not on record |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Oskarshamn nuclear power plant |
|---|---|
| Unit | 1 |
| Country | Sweden |
| Owner | Oskarshamns Kraftgrupp AB100% |
| Operator | Oskarshamns Kraftgrupp |
| Coordinates | 57.4166, 16.6730 |
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utilities do not publish fuel contracts.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 Aug 1966Construction start
- 12 Dec 1970First criticality
- 19 Aug 1971Grid connection
- 6 Feb 1972Commercial operation
- 19 Jun 2017Permanent shutdown
Other units at Oskarshamn nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Oskarshamn nuclear power plant 2 | Retired | 661 |
| Oskarshamn nuclear power plant 3 | 1,450 |
Other AA-I units
2 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Ringhals nuclear power plant 1 | Sweden | Retired | 910 |
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 2024-05-09
- 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