Nuclear Energy 101

Foundational Information for Policymakers and the Public

With a baseline understanding of nuclear technologies, site needs, safety principles, and economic benefits, readers can more easily interpret the roadmap’s strategic goals. This foundation supports strategies for strengthening existing nuclear assets, preparing priority sites, expanding the supply chain, and developing long-term talent pipelines.

Readers engaging with the roadmap benefit from understanding several practical considerations.

  • States that prepare early for siting, permitting, and talent development are best positioned to attract investment
  • Federal incentives are available and time-sensitive
  • Nuclear supports more than electricity; it also powers advanced industries such as chemicals, data centers, hydrogen production, and materials manufacturing
  • Regional collaboration improves cost-sharing opportunities and strengthens the supply chain
  • States with strong manufacturing capabilities can serve national reactor orders, even if reactors are built elsewhere

Types of Nuclear Reactors

Advanced ReactorThe most common type of commercial nuclear reactor, which uses ordinary water as both a coolant and neutron moderator.
Light-water reactor (LWR)Next-generation nuclear reactor designs that incorporate new technologies to improve safety, efficiency, cost, and flexibility.
MicroreactorA type of advanced nuclear reactor designed to be built in smaller units, often manufactured in factories and assembled on site.
Small modular reactor (SMR)Very small nuclear reactors (typically under 20 MW) designed for remote locations, industrial sites, or specialized applications. 

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References and Appendices | Frequently Asked Questions (FAQs)