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Nuclear Pulse / US Nuclear Reactor Outages Today

US reactor outages today

Every US commercial power reactor and its output today, as reported by the Nuclear Regulatory Commission. Units that are offline or running below full power are listed first. Most outages are planned refueling, which happens every 18 to 24 months per unit and clusters in spring and autumn.

—US power reactors
—At full power
—Reduced power
—Offline

Today's unit status

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UnitPowerStatus
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Questions

Where does this data come from?

The US Nuclear Regulatory Commission publishes a Power Reactor Status Report every day, listing each commercial unit's output as a percentage of full power. This page reads the latest report.

Why would a reactor be at reduced power?

Common reasons are refueling outages, planned maintenance, equipment issues, grid conditions, and in summer, cooling-water temperature limits. A unit at 0% is offline.

How many nuclear reactors are there in the US?

The United States has about 94 operating commercial power reactors, the largest nuclear fleet in the world, supplying roughly 19% of the country's electricity.