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ARIES Pathways Program

This document outlines the preliminary comments from the ARIES Pathways Program Industrial Advisory Committee, focusing on key technology assessment criteria, including critical flaws in design processes, material data needs, and significant risks associated with implementation and operation. It highlights the importance of system control mechanisms, the uncertainty of material lifetime post-radiation exposure, and the economics of technology development. The feedback emphasizes the need for prioritization in decision-making and addresses regulatory simplicity and public acceptance as vital elements in technology advancement.

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ARIES Pathways Program

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  1. ARIES Pathways Program Industrial Advisory Committee Preliminary Comments R W Kuhr June 14

  2. Technology Assessment Criteria • Critical flaws • Fundamental process • Materials • Technology development needs • Data needs/cost • Confidence in design basis • Major risks • Implementation • Operation

  3. EPRI Criteria • Economics • Public Acceptance • Regulatory Simplicity • Need to prioritize • Choices determined by primary issues

  4. Critical Flaws • Fundamental Process • Combination of operating conditions at design point demonstrated at ITER • Large number of variants not demonstrated • System control mechanisms are critical • May not be economic to obtain complete design data • Materials • Component life central concern • New material compositions need long term data which may not be available to support design • Lifetime after radiation exposure uncertain

  5. Technology Development • Relies on large scale, expensive facilities • Limited scope of data in relevant conditions • Long list of data needs covered by speculative relationships • Difficult learning period from plant to plant experience (long lead times, $$$)

  6. Major Risks • Implementation • Regulatory • Public Acceptance/risk taking • Private participation/risk taking • Supply chain • Completion • Cost/schedule growth

  7. Major Risks • Operation • Capacity • Forced outages • Scheduled outages • Maintenance/repair cost • Regulatory changes • Early end of life • End of life costs

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