EDIM
EDIM is a physics-based methodology for data assimilation that identifies, corrects and traces the source of discrepancies between calculational and measured observations. It reduces prediction error and keeps predictive models aligned with real-time operational data in a mathematically sound and scientifically defendable manner. EDIM is estimated to create $200M–500M in operational savings per nuclear reactor over its lifetime.
Improving the Best Estimate
Predictive models used to track thermal margins and eigenvalues are often biased due to their inherent assumptions and have uncertainties that can be traced back to nuclear data. This often leads to overly conservative thermal margins leading to operational inefficiencies, suboptimal fuel utilization, and increased regulatory scrutiny. EDIM substantially improves the economics of a reactor by systematically accounting for these sources of bias and uncertainties in a manner consistent with the physics of the reactor.
A Patented Physics-Based Methodology to Correct Bias
EDIM applies information-theoretic tools to analyze, identify and correct the sources of calculational bias in predictive models. The mathematical rigor of information theory allows EDIM to solve the phenomena of underfitting, overfitting, and error compensation often encountered in extant methods. EDIM operates within established NRC-licensed methodologies, ensuring that our innovations are not only technically superior but also commercially viable and regulatory-compliant.
$200M–$500M in Recovered Operational Efficiencies
Current mitigation strategies for eigenvalue and thermal margin biases often involve detuning core designs, requiring the addition of 4–12 extra fuel bundles per cycle. A 1% reduction in reactor power output due to thermal margin bias or eigenvalue uncertainties results in millions of dollars in lost annual revenue per reactor. Applying EDIM results in substantial cost savings for nuclear utilities by mitigating power derates and cycle inefficiencies.
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Business and government inquiries route directly to the EDIM team.