Holtec HI-SMUR

HI-SMUR: Holtec Inherently Safe Modular Underground Reactor

Information:

Core is located completely underground
Operated by gravity induced flow (no reactor coolant pump)
Does not rely on off-site power for shutdown (Inherently Safe)
Can be installed as a single unit or a cluster at a site (Modular)
HI-SMUR’s principal safety credentials derive from locating the core underground in a reactor vessel that has no penetrations to provide a drain-down path for the reactor coolant

Features:

Eliminating the reactor coolant pump and the need for emergency or off-site power to cool the reactor core in the event of a forced shutdown
Small footprint
Minuscule site boundary dose
Large inventory of coolant in the reactor vessel and its modularity
Freedom to build the number of units at a site to best suit the owner's projected power needs
Expected duration of the construction life cycle is 24 months
Annex indicates the electric output at full power under adverse heat sink conditions
Waste heat from HI-SMUR's power generation can be rejected through a water cooled or air cooled condenser or a combination thereof
Not only a clean source of energy - it is also eco-friendly

Construction:

All capital equipment will be shop manufactured
Site construction will principally consist of reinforced concrete structures, electrical, I&C, and component assembly work

Progress:

January 3, 2011 - HI-SMUR development program was transferred from Holtec International to a newly established Holtec company, SMR, LLC
Development of HI-SMUR does not rely on external funding from any private, public, or government source
Program is sufficiently funded to carry out detailed design, analyses, licensing, and other activities to bring the program to the pre-construction phase, ensuring that SMR, LLC will not be hobbled by lack of capital
Number of prominent suppliers of nuclear technologies and systems from around the globe have been selected to support the HI-SMUR program
February 2010 - array of patents based on a provisional are now being submitted for intellectual property protection under U.S. and international patent and trademark laws.
2012 - License application is scheduled to be filed