Wind-powered desalination is an attractive and sustainable method for providing potable water in isolated arid
and coastal zones and islands. In this study, a techno-economic analysis of a wind-powered small-scale seawater
reverse osmosis system(WP-SWRO) is presented. Levelised unit costs for electricity andwater (LCOE and LCOW)
were estimated for Gökçeada Island, Turkey. The energy requirement of the system showed that water can be
produced at a cost between US$2.962 and US$6.457 $/m3 for all wind turbines (with rated capacities
ranging from 6 kW to 30 kW) at various discount rates when considering off-grid operations. For a grid
connected-wind turbine system, the levelised cost of water was predicted to be in the range from US$0.866 to
US$2.846/m3. The levelised costs of electricity are predicted to be US$0.077 to US$0.155/kWh for an 8% discount
rate using a 30-kW wind turbine based on the turbine-specific cost. According to the results from an emission
reduction analysis, using a 30-kW wind turbine for a reverse osmosis system permits a reduction of 80.028
tonnes of CO2 annually. The results show that wind-powered potable water production is economically and technically
reasonable for the site.