The DC will collect input from all the partners in order to assess the cycle performance and thus the potential of PGC in open and Combined Cycle with the goals of identifying the most promising layout options considering also off-design performance and the hybridization with fuel as storage option (H2/NH3/Biomethane) considering also power to gas solutions. At System level: i) for Combined Cycle/ and mixed Gas/Steam Cycle, the investigation of close/open loop steam blade cooling solutions has the potential to further increase the performance in term of efficiency for system designed for continuous use, moreover off-design analysis will be performed to evaluate the load following capability; ii) for Open Cycle, the adoption of the RDC based-layout could lead to simplify the compressor design and with a potential of capital cost reduction for peak-operation systems in land application or size and weight reduction for propulsion purposes. So a proper optimization of the thermo-economic performance is required.