Increasing the loading rate (hydraulic, COD, and nutrient loading) to the NEWgenerator was modeled by changing the number of users and the corresponding influent flowrate. The South Africa field trial demonstrated robust treatment performance of high strength black and yellow water at an estimated 100-200 users. Thus, increasing the user capacity may be plausible for the NEWgenerator and was simulated to determine the cost and environmental implications. For this analysis, the per capita cost and life cycle GHG emissions were determined for scenarios of underutilization (50 users; Figure ) up through increased loading to 600 users (Figure and). The increased number of users was simulated using the NEWgenerator general case at a baseline design of 100 users, assuming core unit components (system housing, membranes, bioreactor, NCS and GAC tanks, etc.) could handle increased loading without adjustment.