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16EnvironmentReport2014SeattleCityLightMakingSmartDecisionsfortheFutureSealeCityLighthasnotonlyachievedcarbonneutralityithasalsoadoptedanintegratedresourceplanthatreliesononlynewrenewableenergyresourcesandenergyeciencytomeetfuturecustomerdemand.AlthoughCityLightisreducingcarbonemissionsclimatechangeisaglobalchallengethatcouldaectthelong-termbusinesshealthoftheulity.CityLightshydroelectricdamswhichproducelow-costpowerforourcustomersdependonmountainsnowpacktostorewaterforgenerangelectricitythroughoutthesummer.Climatechangethatbringsmoreprecipitaonasrainorstartsthemelt-oearlierinthespringwouldthreatentheulitysabilitytogeneratetheelectricityitneedstoserveitscustomersinlatesummer.CityLightisdoingwhatitcantoreduceitsclimateimpactandtohelpitscustomersdothesame.InaneorttoreduceitscarbonfootprintthecityofSealeisturningtogreentechnologiesthatsignicantlyreducetheidlingmesofengineslessenmaintenanceandequipmentdownmeanddecreaseeetfuelconsumpon.CityLightsgoalsfor2014andbeyondincludea30to40percentreduconinfuelusagethroughdiversetechnologiesUseB20biodieselinallSeale-baseddieselequipment.An8020mixofdieselandrecycledbiomassB20isatruerecycledresource.Ulizecompressednaturalgasgasolinedual-fuelequipmentwhichoersacleanerfuelthatcosts60to70percentlessthandieselorgasoline.Addmoreall-electricvehiclestoCityLightsmotorpoolforlocalon-the-jobtravel.Installmoreauxiliarypowerunitsfortheheavyequipmentusedforworksuchaspoledigging.Theseauxiliaryunitssupplyelectricityforemergencylightsystemsbinheatersbaerychargingaswellascabheatinthewinterwithoutrunningtheengine.Thistechnologyeliminatesupto90percentofenginerun-mesavingfuelandreducingtheamountoftrucknoiseintheareaswherewework.CityLightworkswiththeClimateActionReserveandotherthird-partyorganizationstooffsetitsgreenhouse-gasemissionsincludingUsingbiodieselfuelforSeattle-areabussesferriesandgarbagetrucksOfferingelectricshorepowerforcruiseshipsatthePortofSeattleAerobiccompostingoflocalfoodandyardwasteCapturinganddisposingofmethaneatdairyfarmsandlandllsDigestingorganicwastefromaWashingtonStatefoodprocessingfacilityShorepowerforcruiseshipsreducesgreenhousegasemissionsbecausetheshipsdonthavetoruntheirengineswhiletheyreatthedock.In2010thecitysGreenFleetprogramwasnamedtheNo.1GovernmentGreenFleetinNorthAmericaby100BestFleets.Theawardrecognizesexcellentintegraonofalternavefuelsintoexisngoperaonsandcomprehensiveexaminaonofwhereandhowpetroleumreduconpoliciesandprocedurescouldimpacttheeet.