国际能源署-能源效率的多重益处（英）

The IEA examines the full spectrum of energy issues including oil, gas and coal supply and demand, renewable energy technologies, electricity markets, energy efficiency, access to energy, demand side management and much more. Through its work, the IEA advocates policies that will enhance the reliability, affordability and sustainability of energy in its 32 Member countries, 13 Association countries and beyond.This publication and any map included herein are without prejudice to the status of or sovereignty over any territory, to the delimitation of international frontiers and boundaries and to the name of any territory, city or area.Source: IEA. International Energy Agency Website: www.iea.orgIEA Member countries: AustraliaAustriaBelgiumCanadaCzech Republic DenmarkEstoniaFinlandFranceGermanyGreeceHungaryIrelandItalyJapanKoreaLatviaLithuania Luxembourg Mexico NetherlandsNew Zealand NorwayPolandPortugalSlovak Republic SpainSweden Switzerland Republic of Türkiye United Kingdom United StatesThe European Commission also participates in the work of the IEAIEA Association countries:Argentina BrazilChinaEgyptIndia Indonesia Kenya Morocco Senegal Singapore South Africa Thailand UkraineINTERNATIONAL ENERGYAGENCYKey analysisIn selected IEA countries, increased economic activity – people using more energy services, firms increasing their production, and people travelling more – pushed energy use upwards by around 22% since 2000. However, efficiency improvements counteracted most of this demand growth, leading to cost savings and other benefits.Why is energy efficiency important for energy savings?Energy efficiency measures reduce the amount of energy required to fuel and grow our economies. In economies where energy demand is set to grow significantly, efficiency also helps improve people’s lives by increasing access to additional energy services.• In the last two decades, efficiency measures have generated over 27 EJ of energy savings in IEA countries alone, equivalent to 20% of total energy demand.• The industry (including manufacturing) and services (including commercial buildings) sectors generated over half of the savings. In transport, most efficiency gains were achieved in passenger vehicles.Energy demand decomposition, in selected IEA countries, 2000–2023NotesSelection of 24 IEA Member countries accounting for one-third of global final energy demand. Energy demand includes industry and services, residential buildings, and passenger and freight road transport. Structure refers to changes in economic structure. 2023 values are estimated.SourceIEA (2025), Energy End-uses and Efficiency Indicators, (accessed on 04 April 2025).Multiple Benefits of Energy Efficiencyiea.li/MultipleBenefitsEEEnergy SavingsMultiple Benefits of Energy EfficiencyMultiple Benefitsof Energy Efficiencyiea.li/MultipleBenefitsEENeed more information?IEA (2025), Energy End-uses and Efficiency Indicators.IEA (2023), Decomposition of change in IEA total final energy use.The ind