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The mission of the Light Water Reactor Sustainability Program is to develop the scientific basis, and science-based methodologies and tools, for the safe economical long-term operation of the nation's high-performing fleet of commercial nuclear energy facilities.

Recent Newsletter Articles

Recent Technical Reports

Extending reactor life, accurately measuring material stress, LWRS Program research develops tools to assess fracture toughnessWith the future of nuclear power more secure now than it has been in decades, it is time to take a fresh look at business operating models in use in the U.S.
Extending reactor life, accurately measuring material stress, LWRS Program research develops tools to assess fracture toughness01Extending reactor life
Since 2019, LWRS researchers have been evaluating a Remotely Operated Weapon System (ROWS) that uses thermal imaging and optical cameras to identify intruders.Increasing Security Measures for Nuclear Power Plants and their Security Officers


Increasing Security Measures for Nuclear Power Plants and their Security Officers02Security Measures for NPPs and Security Officers
The LWRS Program is helping evaluate the technical feasibility and economics of electrolysis systems that harness electricity and heat from nuclear power plants to split water into oxygen and hydrogen.Affordable Nuclear-Powered Hydrogen Production Within Reach
Affordable Nuclear-Powered Hydrogen Production Within Reach03Affordable Nuclear-Powered Hydrogen Production Within Reach
LWRS Program researchers have developed methodologies and tools that can help the nuclear industry identify and implement the need for advanced digital technologies. The goal is “obsolescence management.”‘Future proofing’ the Fleet
‘Future proofing’ the Fleet04‘Future proofing’ the Fleet
With assistance from a computer system that monitors the numerous sensors in the nuclear power plant, the operators could spot anomalies before they lead to problems.Learning to Spot Trouble Before It Starts
Learning to Spot Trouble Before It Starts06Learning to Spot Trouble Before It Starts
A recent RISA Pathway research effort integrated HUNTER into EMRALD to enable plant and human operational risk modeling in a single tool.Better Together: EMRALD-HUNTER
Better Together: EMRALD-HUNTER06Better Together: EMRALD-HUNTER
Picture Size
INL_RPT_24-77203 1.pngINL_RPT_24-77203 12550 x 33001583 KB 3/27/2024 12:22 PM150Safety Analysis of Chromium-Coated Accident-Tolerant Fuels with Increased Enrichment and Extended Burnup for PWRs, INL/RPT-24-77203
LWRS_Program_Overview_Accomplishments_2023.jpgLWRS_Program_Overview_Accomplishments_20232550 x 3300295 KB 4/24/2024 4:16 PM153Light Water Reactor Sustainability Program Accomplishments Report, 2023
MethodologicalGuidelineIndustryFocusing.pngMethodologicalGuidelineIndustryFocusing1700 x 22001723 KB 4/2/2024 8:55 AM152Methodological guideline for industry focusing on characterization procedures to assess the risk of irradiation degradation of concrete in the biological shield, ORNL/TM-2024/3287
Pages from INL-RPT-24-77206.pngPages from INL-RPT-24-772062550 x 33001580 KB 3/29/2024 12:06 PM151Preconceptual Designs of 50% and 70% Thermal Power Extraction Systems, INL/RPT- 24-77206
PWR-Controls.pngPWR-Controls2550 x 33001402 KB 4/29/2024 1:08 PM154Design Basis for Control System Implementation in a PWR to Enable 30-100% Thermal Power Extraction, INL/RPT-24-77786
PWR-TES_Coupling.pngPWR-TES_Coupling1700 x 2200754 KB 2/12/2024 2:50 PM147
TechnicalEvaluationElectrochemicalMetalRedoxCycle.pngTechnicalEvaluationElectrochemicalMetalRedoxCycle1273 x 1801498 KB 4/29/2024 1:07 PM155Technical Evaluation of Electrochemical Metal Redox Cycle for Hydrogen Production, Heat Augmentation, and Energy Arbitrage, INL/RPT-24-77659