The results in Figure suggest that O&M contributes nearly half of the LCOE: 28 $/MW e -h. This value is within the range for the nearby Steamboat geothermal power plant of 20 to 25 $/MW e -h. This is important to note considering the literature review we conducted to create genGEO found a wide variability in O&M costs, with GETEM underestimating this cost compared to other sources (Section S4). The horizontal lines of the CO₂-based power plants in Figure are due to a reservoir constraint where the CO₂ production-well downhole pressure must always be hydrostatic. In cases of shallow reservoir depth and high reservoir transmissivity, the CO₂ pressure must be throttled downhole to prevent the reservoir from being over-pressurized. This could be mitigated in specific reservoir cases where higher than hydrostatic pressure is allowed. Figure shows that the electricity generated per 5-spot well pattern increases with increasing depth and transmissivity. And as shown by the red threshold line, using CO₂ as a heat extraction fluid can generate more electricity than using water at shallower reservoir depths and lower reservoir transmissivities. As discussed in prior work, this occurs because at low reservoir transmissivities and depths, the CO₂ viscosity is much lower than water and enables higher geothermal circulation rates. In contrast, at high transmissivities, the reservoir frictional losses are less important, and the higher heat capacity of water can brings more heat to the surface. However, as shown in Figure , the majority of sedimentary basin resources in the U.S. have p50 properties that result in more generation with CO 2 compared to water.