Multi-variable investigation of an innovative multigeneration process based on geothermal energy and Allam power unit for yielding electric power, cooling, heating, and liquid CO2 with zero CO2 footprint

•Simultaneous use of geothermal energy and Allam power unit for an efficient process.•Producing cooling, heating, electricity, and liquid CO2 without CO2 footprint.•Aspen HYSYS simulation and comprehensive multi-aspect study.•Total energy and exergy efficiencies are 53.41% and 50.33%•Levelized cost of the power and all outputs is 0.032 $kWh and 0.031 $kWh, respectively.