This active Sources Sought/Expression of Interest seeks qualified firms to design, fabricate, test, and deliver an oil-free, liquid-cooled CO2 compressor package for the Idaho National Laboratory CFA-686 Carbon-based Fuels Capability. The compressor must provide approximately 1,400 psig outlet pressure at 66.1 scfm, operate nearly continuously, and include the motor, controls, piping, instrumentation, structural frame, cooling equipment, and containerized installation. The anticipated award is firm-fixed-price, and qualified respondents may later be invited to submit technical and price proposals for a formal RFP; this is a procurement solicitation and not a grant program.