Technical and economic evaluation of freshwater production from a wind-powered small-scale seawater reverse osmosis system (WP-SWRO)

Abstract 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 and water (LCOE and LCOW) were estimated for Gokceada 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 $/m 3 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/m 3 . 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 CO 2 annually. The results show that wind-powered potable water production is economically and technically reasonable for the site.

[1]  A. M. Helal,et al.  Economic feasibility of alternative designs of a PV-RO desalination unit for remote areas in the United Arab Emirates , 2008 .

[2]  Lourdes García-Rodríguez,et al.  Economic analysis of wind-powered desalination , 2001 .

[3]  Amy M. Bilton,et al.  Design of power systems for reverse osmosis desalination in remote communities , 2015 .

[4]  Chamhuri Siwar,et al.  Environmental impact of alternative fuel mix in electricity generation in Malaysia , 2008 .

[5]  C. Justus,et al.  Height variation of wind speed and wind distributions statistics , 1976 .

[6]  Lotfi Krichen,et al.  Design and energy control of stand-alone hybrid wind/photovoltaic/fuel cell power system supplying a desalination unit , 2014 .

[7]  Esmail M. A. Mokheimer,et al.  Modeling and optimization of hybrid wind–solar-powered reverse osmosis water desalination system in Saudi Arabia , 2013 .

[8]  Hisham Ettouney,et al.  Evaluating the economics of desalination , 2002 .

[9]  Hacene Mahmoudi,et al.  On the use of wind energy to power reverse osmosis desalination plant: A case study from Ténès (Algeria) , 2011 .

[10]  D. Zejli,et al.  Economic analysis of wind-powered desalination in the south of Morocco , 2004 .

[11]  George Papadakis,et al.  Experimental investigation of the performance of a reverse osmosis desalination unit under full- and part-load operation , 2015 .

[12]  S. C. Mullick,et al.  Techno-economics of small wind electric generator projects for decentralized power supply in India , 2007 .

[13]  Nasrudin Abd Rahim,et al.  Environmental impact of wind energy , 2011 .

[14]  Mustafa Serdar Genç,et al.  Evaluation of electricity generation and energy cost of wind energy conversion systems (WECSs) in Central Turkey , 2009 .

[15]  Mitchell J. Small,et al.  Designing cost-effective seawater reverse osmosis system under optimal energy options , 2008 .

[16]  Dean Fantazzini,et al.  Reviewing Electricity Production Cost Assessments , 2013 .

[17]  Murat Gökçek,et al.  Investigation of wind characteristics and wind energy potential in Kirklareli, Turkey , 2007 .

[18]  T. W. von Backström,et al.  Assessment of the wind power potential at SANAE IV base, Antarctica: a technical and economic feasibility study , 2003 .

[19]  Peter McGregor,et al.  Levelised costs of Wave and Tidal energy in the UK: Cost competitiveness and the importance of "banded" Renewables Obligation Certificates , 2011 .

[20]  Palanichamy Gandhidasan,et al.  Effect of feed pressure on the performance of the photovoltaic powered reverse osmosis seawater desalination system , 2009 .

[21]  J. C. van Dijk,et al.  Sustainable seawater desalination: Stand-alone small scale windmill and reverse osmosis system , 2009 .

[22]  I. Karagiannis,et al.  Water desalination cost literature: review and assessment , 2008 .

[23]  Bryce S. Richards,et al.  Potential of wind-powered renewable energy membrane systems for Ghana , 2009 .

[24]  M. Boumaza,et al.  Techno-economic feasibility of wind-powered reverse osmosis brackish water desalination systems in southern Algeria , 2014 .

[25]  Karan H. Mistry,et al.  An Economics-Based Second Law Efficiency , 2013, Entropy.

[26]  G. Iglesias,et al.  LCOE (levelised cost of energy) mapping: A new geospatial tool for tidal stream energy , 2015 .

[27]  Thomas Melin,et al.  State-of-the-art of reverse osmosis desalination , 2007 .

[28]  Jamel Belhadj,et al.  Large-scale time evaluation for energy estimation of stand-alone hybrid photovoltaic–wind system feeding a reverse osmosis desalination unit , 2011 .

[29]  José A. Carta,et al.  Preliminary experimental analysis of a small-scale prototype SWRO desalination plant, designed for continuous adjustment of its energy consumption to the widely varying power generated by a stand-alone wind turbine , 2015 .

[30]  Stavros A. Papathanassiou,et al.  Component sizing for an autonomous wind-driven desalination plant , 2006 .

[31]  Baltasar Peñate,et al.  Assessment of a stand-alone gradual capacity reverse osmosis desalination plant to adapt to wind pow , 2011 .

[32]  Hassan E.S. Fath,et al.  Optimal design of a hybrid solar-wind power to drive a small-size reverse osmosis desalination plant , 2013 .

[33]  Abul Fazal M. Arif,et al.  On the feasibility of community-scale photovoltaic-powered reverse osmosis desalination systems for remote locations , 2011 .