goingcritical:asco-1Spain · Power reactor
Ascó-1
Status: Operating critical since June 16, 1983 Reactor status full glossary → Announced Publicly announced — a site and design are proposed, but construction has not begun. Site preparation Early site and civil works are under way; the first safety-related ("nuclear") concrete has not yet been poured. Under construction Formal construction has begun, marked by the first nuclear concrete. Fuel loaded Nuclear fuel has been loaded into the core. The reactor is fuelled but has not yet gone critical. Critical Has reached first criticality — a self-sustaining chain reaction, usually at low power — but is not yet connected to the grid. Grid connected Synchronised to the electrical grid and exporting power for the first time, but still in commissioning and power-ascension testing — not yet in commercial service. In commercial operation — the operator has formally declared the unit in regular commercial service. Shut down Permanently shut down and no longer generating; may be defuelled, undergoing decommissioning, or preserved in place. Canceled Abandoned before completion.
Site: Ascó, Tarragona
The first of two Westinghouse 3-loop PWR units at the Ascó plant on the Ebro river in Tarragona, Catalonia. Ascó-1 went critical in June 1983 and is operated by ANAV, the joint operating company of Endesa and Iberdrola that also runs Vandellòs-2.
Details
| Design | Westinghouse 3-loop PWR |
| Electrical output | 995 MWe |
Milestone history
- Announced —
- Construction start May 16, 1974
- Fuel load —
- First criticality June 16, 1983
- Grid connection August 13, 1983
- Commercial operation December 10, 1984