Among all sources compared, the pump costs in genGEO are taken primarily from GETEM. GETEM provides pump relationships for circulation pumps, injection pumps, and lineshaft pumps. Costs for circulation pumps for cooling water are obtained from NETL (2007; 2010; 2012; 2015; 2019b). Additionally, to estimate the cost of a CO₂ pump, both CO₂ compressor and pump costs are analyzed. CO 2 compressor costs are obtained from NETL and Duc et al. (2007). CO₂ liquid pump cost is obtained from a Flowserve vendor quote. Ultimately, compressor costs were substantially higher than pump costs and thus did not inform the genGEO CO₂ pump cost estimate. CO₂ compressor cost is only shown for reference.