[90-95%] and decrease consumable consumption in the unit. A sludge moisture content of 70% and 45% reduced median per capita cost by 4.1 and 4.3 cents, respectively, and GHG emissions by 6.6 and 7 kg CO2eq•cap -1 •yr -1 , respectively (Figures and). Use of LPG-only for combustion decreased emissions by 2.9 kg CO2eq•cap -1 •yr -1 at an increased cost of 0.7 cents, while increasing biogas combustion efficiency to 100% had negligible impacts (Figures and). A 1:1 ratio of sludge pasteurization unit to NEWgenerator would increase cost and GHG emissions by 1.8 cents and 0.4 kg CO2eq•cap -1 •yr -1 , respectively (Figures and). If all the above positive improvements (component changes, 45% sludge moisture content, and 2.5% frontend annual O&M as a percent of total capital costs) are applied assuming no negative interactions among them, there is potential for median daily per capita cost and GHG emissions to be reduced by 39% to 0.089 USD•cap -1 •d -1 and 11% to 50.2 kg CO2eq•cap -1 •yr -1 , respectively. Error bars extend to 5 th and 95 th percentile values from the uncertainty analysis.