A fuzzy set methodology to compare between different autonomous PV-RO desalination Ppants: a case Study scenarioA fuzzy set methodology to compare between different autonomous PV-RO desalination Ppants: a case Study scenario Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-152010enThe present research provided a strong base for comparing the overall efficiency and viability of different autonomous desalination plants. Reverse osmosis is becoming the technology of chose while the continuous reduction in the cost of photovoltaics, and fresh water shortages, can increase the need for more compact desalination system (hybrid or autonomous) mainly for small or/and isolated communities. The current research utilizes the fuzzy logic (FL) methodology to compare and therefore to make decisions about Autonomous Photovoltaic Reverse Osmosis (APVRO) desalination plants through a Benefit to Cost model in a sense of performance and cost enhancement of both, solar energy utilization by photovoltaics, and fresh water production through reverse osmosis unit, that can achieve as much as accurate results.http://creativecommons.org/licenses/by/4.0/The 7th Jordanian International Mechanical Engineering Conference Fanos Josephides Stavrakakis Georgios Σταυρακακης Γεωργιος Omar Badran Rustom Mamlook Engineering, Mechanical mechanical engineering engineering mechanical