Weekly briefing
Nuclear Supply Outlook
Week of Jun 16, 2026 · auto-generated each Monday from the morning data. Nuclear availability 99.5, up on the week; CAISO/SPP tight.
The number
The U.S. nuclear fleet sits at a Baseload Availability Index of 99.5, up 2.5 on the week, with 457 MW offline, 0.5% of capacity.
Market context
Henry Hub gas is $3.10/MMBtu (normal), which scales how much a supply loss moves power price. The grid looks tight tomorrow in CAISO, SPP, where a nuclear loss would bite hardest.
Risk watch
Highest overrun risk: Callaway (MISO), projected to run about 10 days long, 11,900 MW-days at risk. Waterford 3 is running reduced at 94%, worth watching for a forced step-down.
Generated from the NRC Daily Power Reactor Status Report, EIA data and the Baseload projection engine. Availability and context are measured; forward items are model projections, not a guarantee, and nothing here is investment advice.