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Light Water Reactors

The Light Water Reactor Sustainability (LWRS) Program is a research and development program sponsored by the U.S. Department of Energy, performed in close collaboration and cooperation with related industry research and development programs. The LWRS Program provides technical foundations for licensing and managing the long-term safe and economical operation of current nuclear power plants, utilizing the unique capabilities of the national laboratory system. For more information about the program, please visit the LWRS Program website (

Market Challenges for Nuclear Fleet-ESSAI Study Sept 2017