Sensitivity Analysis of Capital Cost of European DEMO Design

Conceptual designs for a European demonstration (EU-DEMO) power plant are based on extrapolations of physics scaling laws and current understanding engineering limits available technologies. It is imperative to quantify the impact uncertainties in parameters ability produce an economically attractive future fusion that meets key design outcomes. In this work, sensitivity expected capital cost EU-DEMO has been studied using systems code PROCESS. A aims model interactions between subsystems provide consistent solution across large parameter space. The PROCESS system allows user-defined initial conditions constraints then optimizes given figure merit find optimal parameters. We present analysis optimizations around 2018 pulsed baseline, identification most consequential magnitude nonlinear them. consider while fixing major radius optimizing gain $Q$ , we role determining such device. identify dominant as threshold necessary enter H-mode, which accounts 45% high plasma shaping other subsystems. This areas additional technical focus uncertainty propagation.