SMR-300

SMR-300

Innovatively Designed to Provide Safe, Clean, Secure Energy Anywhere in the World

Holtec’s SMR-300™ is an advanced Pressurized Water Reactor (PWR) that is deployed in a dual-unit configuration (two SMR-300 units) within a single plant envelope that will generate approximately 600 MW of 24/7 clean electricity to power communities, businesses and large power off-takers.

The SMR-300 is a Gen III+ Small Modular Reactor (SMR) based on proven PWR technology and traditional PWR fuel in use today. The dominance of the PWR technology, as the safest and most widely deployed technology on the market, is borne out by its adoption by practically every international reactor supplier in the world. Holtec’s main contribution to the classical PWR framework is through introduction of passive fluid cooling loops that embody robust safety features, incorporation of black start capability, and simplification of the design focused on ease of manufacturing and construction.

The design measures to ensure unprecedented levels of safety in SMR-300 have been implemented along with a close focus on minimizing as-built plant costs. Holtec has further modularized the construction of the SMR-300 to enable factory mass-production of components and structures that will be shipped to site for final assembly by extensive use of robot-actuated welding machinery

Reliable and Environment-Friendly

SMR-300™ helps the world meet its climate goals by using fission to create clean, carbon-free energy.

SMR-300™ can start without outside power sources and can run independently from local electrical grids.

SMR-300™ can be used in the world’s driest regions, with the use of air-cooled condensers.

Safe and Secure

Holtec’s SMR-300™ also implements security and safeguards by design, including standard PWR fuel (<5% enrichment), spent fuel pool and all safety related equipment inside containment, and integrated dry spent fuel storage systems compliant with IAEA safeguard seals field-implemented already. Our comprehensive cyber security plan design is informed by the NRC (and foreign regulators) defined design basis threats.

  • The reactor core is situated deep underground, protected by a steel and concrete containment enclosure
  • All equipment vital to the safety and security of the plant is housed deep within well-protected areas
  • SMR-300™ is “walk-away safe,” requiring no operator actions during natural disasters, man-made threats, or volatile conditions considered by U.S. regulations
  • Unlike current reactors, SMR-300™ features passive safety systems, eliminating the need for many active components
  • A large water inventory protects the reactor core, which is designed to always remain deeply submerged in best operating situations
  • SMR-300™ uses Holtec’s HI-STORM UMAX dry storage system, safely holding spent fuel in an underground vertical ventilated module
SMR-300

Innovation

The SMR-300™ innovative design enables radiation area boundaries such as the Exclusion Area Boundary, Low-Population Zone , and Emergency Planning Zone to coincide with the Protected Area, reducing costs and ease of access to the site for co-located facilities. It is designed to use Air-Cooled Condensers in locations where water is not available or permitting is difficult.