Stellaris: A vision for a high-field stellarator for a prototypical fusion power plant

Quasi-isodynamic (QI) stellarators are uniquely suited as commercial fusion power plants. Recent advances in stellarator optimization now permit for the first time to obtain QI stellarator configurations with all major reactor relevant physics properties. Additionally high-field superconductors allow greater field strengths, leading to more compact machines. In this talk, we show for the first time a full reactor study for a new QI stellarator with high-temperature superconductors (HTS). We demonstrate the achievement of a coherent set of requirements through high-fidelity magnet simulations, neutronics analysis, structural assessments, first-wall thermal simulations, a remote maintenance concept, as well as plasma heating and fueling schemes. The presented work is a collaborative effort between Proxima Fusion, IPP and KIT and is submitted for publication to an academic journal. It is intended to serve as a discussion platform between the public and the private sector, accelerating next steps on the path to commercially viable fusion.