Assessment of Wind Farm Sing Suitability in Hainan Island

Assessment of Wind Farm Si ng Suitability in Hainan Island (China) Where is Hainan Island? 11 Suitability Factors Hainanisthesmallestprovincebutthelargestislandunderthe
jurisdictionofChina.LocatedinthesoutherntipoftheChinese
mainland,Hainanhasanareaof33,920squarekilometers,three
timesofHawaiiIslandandonefourthofFloridaState.Dubbedas
China’sHawaii,Hainanstrivestobecomean‘internationaltourism
island’by2020.
Step3:SuitabilityClassi icationandScoring
Eachsuitabilityfactorwasre-classi iedinto5categories
rangingfromascoreof5(thestrongest)to1(theweakest).
NationalReserves,LandCover,LakesandAirportswererenderedavalueofeither1or0.
Step4:TotalScoreCalculation Allfactorlayerswerenumerically‘addedup’byusingthe
toolofRasterCalculator.Thecalculationequationis:
WindPowerDensity*130%+LandSlope+PowerTransmissionLine*70%+HistoricalSites+Roads*50%
+Highways*50%+Population)*(NationalReserves*Land
Cover*Lakes*Airports)
Step5:FinalResultLayerReclassi ication
Whenthe inalresultwasderivedbycalculation,itwasreclassi ied.Thehighestscoringareasarethemostsuitable.
Discovery Hainanhasfavorableconditionsfordevelopingwindgenerationcapacity.Themostsuitableareawhichfallsinthe‘Highly
Suitable’Classtotalsmorethan300squarekilometers,
roughlyonehundredthofthetotalareaofHainan.
Why Hainan Needs Wind Farms? Hainanishighlydependentonexternalenergysupplyincluding
oil,coalandre inedproducts.75%ofelectricityisgeneratedby
coal,only25%bywindandsolar.80%ofhydroresourceshave
beendeveloped.
WindisconsideredanidealenergyalternativeforHainan.Tappingintowindenergycanhelpaddressconcernsofenergyselfsuf iciencyandemissionreduction.
Mission: Find the Most Suitable Area However,suitabilityofwindfarmsitingisunevenlydistributedgeograhically.DongfangShianditsneighboring
ChangjiangLiZizhixian,bothlocatedonthewestcoast,are
themostsuitableareasconstitutingabout95%ofthemost
eligiblearea.Therearetwowindcorridors,oneisNorthSouthboundalongthewestcoastwithadistanceofapproximately45km,theotherisSouthwest-Northeastboundexpandingfromthewestcoasttowardtheinlandformorethan
50km.
Whilethereisplentyofon-shorewindpowergenerationpotentialinHainan,greaterpotentialactuallyliesonthesea.
Morethanhalfofthehighesteligibleareaislocatedwithin2
kmoffthewestcoast.
Zoom In: Most Suitable Area Theprimaryspatialquestionthisprojectattemptstoansweris:
WhatareasontheIslandarebestsuitableforbuildingwindfarms,
giventhenecessityofthereconciliationbetweenthegeographical
distributionofHainan’swindenergyresourcesandits‘tourism
irst’industrialdevelopmentgoal?
How? 5 Steps Step1:CriteriaSetting
11factorshavebeenidenti iedaskeyfactorsofwindfarming
suitability:WindPowerDensity,LandSlope,PowerTransmissionLine,HistoricalSites,Roads,Highways,Population,National
Reserves,LandCover,LakesandAirports.
Step2:DataPreparation
Datasetsofthesefactorswerecollected,projectedat
WGS_1984_UTM_Zone_49Nandclippeduniformly.11datarasterizedlayerswereproducedandeachrepresentsasuitability
factor.
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)