Hainanishighlydependentonexternalenergysupplyincluding

oil,coalandre inedproducts.75%ofelectricityisgeneratedbycoal,only25%bywindandsolar.80%ofhydroresourceshavebeendeveloped.

WindisconsideredanidealenergyalternativeforHainan.Tap-pingintowindenergycanhelpaddressconcernsofenergyself-suf iciencyandemissionreduction.

Theprimaryspatialquestionthisprojectattemptstoansweris:WhatareasontheIslandarebestsuitableforbuildingwindfarms,giventhenecessityofthereconciliationbetweenthegeographicaldistributionofHainan’swindenergyresourcesandits‘tourismirst’industrialdevelopmentgoal?

Step1:CriteriaSetting

11factorshavebeenidenti iedaskeyfactorsofwindfarmingsuitability:WindPowerDensity,LandSlope,PowerTransmis-sionLine,HistoricalSites,Roads,Highways,Population,NationalReserves,LandCover,LakesandAirports.Step2:DataPreparationDatasetsofthesefactorswerecollected,projectedatWGS_1984_UTM_Zone_49Nandclippeduniformly.11dataras-terizedlayerswereproducedandeachrepresentsasuitabilityfactor.

Step3:SuitabilityClassi icationandScoringEachsuitabilityfactorwasre-classi iedinto5categoriesrangingfromascoreof5(thestrongest)to1(theweakest).NationalReserves,LandCover,LakesandAirportswereren-deredavalueofeither1or0.Step4:TotalScoreCalculation Allfactorlayerswerenumerically‘addedup’byusingthetoolofRasterCalculator.Thecalculationequationis:

WindPowerDensity*130%+LandSlope+PowerTrans-missionLine*70%+HistoricalSites+Roads*50%+Highways*50%+Population)*(NationalReserves*LandCover*Lakes*Airports)Step5:FinalResultLayerReclassi icationWhenthe inalresultwasderivedbycalculation,itwasre-classi ied.Thehighestscoringareasarethemostsuitable.

Hainanhasfavorableconditionsfordevelopingwindgenera-tioncapacity.Themostsuitableareawhichfallsinthe‘HighlySuitable’Classtotalsmorethan300squarekilometers,roughlyonehundredthofthetotalareaofHainan.

However,suitabilityofwindfarmsitingisunevenlydistribut-edgeograhically.DongfangShianditsneighboringChangjiangLiZizhixian,bothlocatedonthewestcoast,arethemostsuitableareasconstitutingabout95%ofthemosteligiblearea.Therearetwowindcorridors,oneisNorth-Southboundalongthewestcoastwithadistanceofapproxi-mately45km,theotherisSouthwest-Northeastboundex-pandingfromthewestcoasttowardtheinlandformorethan50km.

Whilethereisplentyofon-shorewindpowergenerationpo-tentialinHainan,greaterpotentialactuallyliesonthesea.Morethanhalfofthehighesteligibleareaislocatedwithin2kmoffthewestcoast.

Hainanisthesmallestprovincebutthelargestislandunderthe

jurisdictionofChina.LocatedinthesoutherntipoftheChinesemainland,Hainanhasanareaof33,920squarekilometers,threetimesofHawaiiIslandandonefourthofFloridaState.Dubbedas

China’sHawaii,Hainanstrivestobecomean‘internationaltourismisland’by2020.

Assessment of Wind Farm Si ng Suitability in Hainan Island (China)   

Where is Hainan Island? 

Why Hainan Needs Wind Farms? 

How? 5 Steps  

Zoom In: Most Suitable Area  

11 Suitability Factors  

Discovery 

Mission: Find the Most Suitable Area 

Cartographer:XiandengYi

Projec on: WGS_1984_UTM_Zone_49N         Date: April 28, 2013  

Data Sources: Na onal Renewable Energy Laboratory (NREL),  The  Consulta ve Group on Interna onal Agricultural Research version of  Shu le 

Radar Topographic Mission (CGIAR SRTM), European Comission Joint Research Centre Global Environment Monitoring Unit,  Digital Chart of the 

World,  The LandScan 2005, Google Earth, China Census 2000 , ESRIDataMaps10, World Database on Protected Areas (WDPA), GeoMarke ng 

(GFK)