Live Fleet Status
U.S. Nuclear Supply Map
Every operating reactor, sized by capacity, colored by live status. As of Sep 15, 2026.
MW Offline
3,462 MW
6.1% of fleet
Generating
53,513 MW
56 reactors
Full Outages
3
units at 0% power
Derated
5
units below 98%
Fleet Map
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Outage
Full power
Derated = below 98% · circle size = capacity (MWe) · units at a shared site are fanned apart
Market offline
share of each ISO/RTO's nuclear offline · hover a region for detail