US nuclear outages
A reactor at zero is not necessarily a reactor in trouble. Most US units take a planned outage every 18 to 24 months to refuel, concentrated in spring and autumn when electricity demand is lowest. This page shows which units are down now and for how long, drawn from a year of NRC daily reports.
Currently below full power
| Unit | Power | Days in this state | MW unavailable | Last 90 days |
|---|---|---|---|---|
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No reason is shown because the NRC feed does not carry one. The daily file has three fields: date, unit, power percentage. Attributing a cause would mean guessing, so this page reports duration and depth only.
Outages over the past year
Every period a unit spent at 0% power, longest first. Ongoing outages are marked.
| Unit | From | To | Days | MW·days lost |
|---|---|---|---|---|
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Sources
- NRC Power Reactor Status Reports , US Government work, public domain · outage periods derived from daily power percentages; the feed states no cause
- Unit capacities: Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data