Aerojet Rocketdyne (AR) along with Duke Energy, Alstom Power, Electric Power Research, and Oak Ridge National Laboratory (ORNL) are developing more innovatively mature turbomachinery components for indirectly and directly heated supercritical CO₂ (SCO₂) power generation cycles. The project team will perform systems analyses for both directly and indirectly heated cycles; perform turbomachinery layout studies; and perform a technology gap analysis to assess where future investments and testing are needed. AR and ORNL will also perform long duration high-temperature, high-pressure exposure tests on a variety of materials in SCO₂ to determine materials compatibility and inform future turbomachinery designs.