For the mixed excreta scenario, the largest median costs were attributed to the capital costs of the pit latrines (31% [19 -52%] of total user cost) followed by the electricity requirements for pretreatment (i.e., screw press) of the fecal sludge (16% [6 -34%]). The next highest contributors to the total cost of the OP were those related to operation and maintenance, including pit latrine emptying (12% [5 -22%]), full-time operators of the OP (16% [8 -25%]), and transport of the fecal sludge from the pit latrines to the OP system (15% [10 -23%]). The costs related to the operation and maintenance of the carbonizer base (i.e., the unit of the OP that is responsible for the pyrolysis) was 2.4% [1 -5%], due to the high frequency that parts need to be replaced in this unit. It is notable that energy production of the combined heat and power system was able to offset total costs (-1% [-2 --0.05%]) by producing energy (i.e., negative cost). The remaining relative contributions were relatively small (< 2% on average). The direct emissions from waste from pit latrine dominated the GHG emissions for the mix excreta scenario (64% [39 -78%]). The GHG emissions from the energy required to support pretreatment by dewatering accounted for 16% [5 -41%] of the total emissions. The third highest contributor to GHG emissions were capital emissions from the pit latrine (14% [6 -35%]). The remaining contributors to GHG emissions were relatively small (each had a median contribution of < 2%).