WAlliance to Save EnergyWAPNPPWEnergy CommunityWEnergy Regulators Association of East AfricaWEnergy Regulators Regional AssociationWEnergy Technology Data ExchangeWEuropean Federation of Energy TradersWEuropean Network of Transmission System Operators for GasWGas Exporting Countries ForumWINOGATEWInternational Energy AgencyWInternational Energy Agency Energy in Buildings and Communities ProgrammeWInternational Energy ForumWInternational Partnership for Energy Efficiency CooperationWInternational Symposium on Alcohol FuelsWJoint Organisations Data InitiativeWOPECWOREDAWPetrocaribeWSouth American Energy CouncilWWorld Energy Council