GenCost 2024-25 Frequently Asked Questions

This document is a technical report that addresses frequently asked questions regarding the methods and assumptions applied in the GenCost project. It outlines the stakeholder consultation process, emphasizing that changes to the GenCost report are based on the quality of evidence rather than the authority of the source. The report explains the rationale for excluding disruptive events from scenarios and discusses the design of scenarios to reflect the most uncertain and impactful parameters. Additionally, it details the basis for estimating large-scale nuclear costs and the rationale behind the choice of specific projects for cost representation. The document also addresses concerns about reliance on overseas technology suppliers and the assumptions regarding future technology costs, while acknowledging the uncertainty in data and the need for a common basis in capital cost outputs. Overall, the report aims to clarify the methodologies used in GenCost and the considerations that influence its findings.