A year after the 9 July 2024 signing of the ADVANCE Act, celebrated by Senate and House leaders after votes of 88 to 2 and 393 to 13, the United States nuclear conversation remains bifurcated. On one side sits licensing and institutional reform at the Nuclear Regulatory Commission. On the other sit construction schedules, fuel supply and interconnection for both existing units and first advanced projects. Confusing the two produces brochure-based resource plans.
What process reform should have unlocked by now
Applicants and pre-applicants look for clearer fee treatment, more predictable review timelines, and pathways suited to advanced designs and potential micro-reactors. Congressional reporting requirements create checkpoints. Outside analysts should judge progress by completed regulatory deliverables and docket movement, not by conference panels. The Act's bipartisan origin raised expectations; expectations are only useful when tied to milestones.
Existing fleet still dominates near-term firm low-carbon supply
Licence renewals and uprates on operating reactors move more megawatt-hours in the late 2020s than first-of-a-kind small modular reactors will. Rising electricity demand, described in EIA's January 2025 STEO as the first stretch of consecutive annual growth since the mid-2000s, increases the value of every reliable nuclear unit that remains economic. Coal retirements planned at 8.1 gigawatts for 2025 in EIA's February 2025 inventory underscore the firm-capacity gap nuclear helps fill when it stays online.
SMR siting and co-location
Interest in placing advanced reactors near data centres or on retiring fossil sites is commercially understandable. It still requires NRC licensing, state siting, emergency planning, fuel arrangements and grid interconnection. FERC interconnection and transmission rules shape the grid side. Order No. 1920 long-term planning should see nuclear where states and developers actually propose it, not as decorative zero-carbon flavour.
Fuel cycle caution
High-assay low-enriched uranium and enrichment capacity remain strategic constraints for some advanced designs. Licensing speed cannot substitute for fuel. Policymakers who pass process reform without fuel-cycle follow-through leave a hollow middle in the project critical path.
A year on, the ADVANCE Act is best treated as necessary institutional maintenance. Megawatts will follow only where capital, communities and connections align.
The practical discipline is unchanged across fuel types and market constructs. Read the primary docket or statistical release before arguing about national destiny. Separate nameplate megawatts from accredited capacity, and contracted offtake from commissioned trains. Map interconnection and transmission lead times onto customer energisation promises rather than the other way round. Treat winter and summer extreme cases as design conditions. When federal policy shifts, update the slope of the forecast without rewriting physical laws. When state commissions push back on cost allocation, treat that push-back as part of the build path rather than as noise. United States energy infrastructure is financed, permitted and operated by people who must reconcile those constraints daily. Analysis that ignores them will not survive first contact with a peak day. Regional operators will continue to publish winter assessments, summer reliability outlooks and interconnection status reports. Those documents, read together with EIA inventories and FERC orders, give a clearer picture than any single speech. Investors should price execution risk honestly. Policymakers should resist the urge to treat one statute or one survey table as the whole system. The grid is a machine. Machines care about margins, not metaphors.