Energy Efficiency2021The 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 30 member countries, 8 association countries and beyond.Please note that this publication is subject to specific restrictions that limit its use and distribution. The terms and conditions are available online at www.iea.org/t&c/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. All rights reserved.International Energy Agency Website: www.iea.orgIEA member countries: Australia Austria BelgiumCanadaCzech Republic DenmarkEstoniaFinland France Germany Greece HungaryIreland ItalyJapanKorea Luxembourg Mexico Netherlands New Zealand NorwayPoland Portugal Slovak Republic Spain Sweden Switzerland Turkey United Kingdom United StatesThe European Commission also participates in the work of the IEAIEA association countries:BrazilChinaIndiaIndonesiaMoroccoSingaporeSouth AfricaThailandINTERNATIONAL ENERGYAGENCYEnergy Efficiency 2021 Abstract PAGE | 3 IEA. All rights reserved. Abstract Energy Efficiency 2021 is the IEA’s annual update on global developments in energy efficiency. This year’s edition explores recent trends in energy efficiency markets at the economy-wide and sectoral levels, including developments in policy and investment. The report also focuses on the role of energy efficiency in...