We calculate the LCOE over the parameter space using the LIKELY financing assumptions and the production well flowrate that minimizes cost. We assume two CO₂-geothermal cases for these calculations: brownfield and greenfield. In a brownfield case, the cost of CO₂ injection wells and wellfield are not included because this cost is assumed to have been paid for by a geologic CO 2 storage developer. In contrast, greenfield scenarios assume all costs are included. Power plants that use water as the heat extraction fluid are always greenfield cases. In both greenfield and brownfield CO 2 -geothermal power plants, we do not assume a cost for acquiring CO 2 nor any financial benefit (e.g. revenue) for sequestering it in the subsurface.