Weekly briefing
Nuclear Supply Outlook
Week of Sep 15, 2026 · written from the morning data, refreshed weekly. Nuclear availability 93.0, down on the week.
The number
The U.S. nuclear fleet sits at a Nuclear Availability Index of 93.0, down 2.4 on the week, with 6,767 MW offline, 7.0% of capacity.
Market context
Henry Hub gas is $2.81/MMBtu (cheap), which scales how much a supply loss moves power price. No ISO is forecast tight tomorrow, so a loss would be largely absorbed.
The weeks ahead (which units come off line next, with dates) is part of NukeGryd Individual and up, and the overrun risk watch is part of Pro and up.
See plans
Generated from the NRC Daily Power Reactor Status Report, EIA data and the NukeGryd projection engine. Availability and context are measured; forward items are model projections, not a guarantee, and nothing here is investment advice.