To characterize the cost and GHG implications of targeted improvements to the NEWgenerator, five potential improvement scenarios were evaluated: (Scenario 1) increase system capacity from 100 (baseline) up to 600 users; (Scenario 2) develop or source lower cost or lower impact components and services, including the use of a lithium photovoltaic battery, sourcing of a lower cost housing, more efficient sludge pasteurization service, and use of a frontend with reduced O&M requirements; (Scenario 3) reduced O&M requirements for NCS by replacing zeolite instead of regenerating it and increasing the zeolite capacity for NCS; (Scenario 4) dissolved methane recovery via hollow fiber membrane contactor (HFMC) installed post-AnMBR to reduce direct GHG emissions; and (Scenario 5) concentration and sale of recovered NH3 as liquid fertilizer.