Doubling the Rate of Improvementof Energy Efficiency

Sinton, Jonathan ; Sarkar, Ashok ; Jaques, Ivan ; Bushueva, Irina

World Bank, Washington, DC

关键词: ACCESS TO ELECTRICITY;    ACCESS TO MODERN ENERGY;    AVAILABILITY;    BALANCE;    BIOMASS;   

RP-ID  :  90775

学科分类：社会科学、人文和艺术（综合）

来源: World Bank Open Knowledge Repository

【 摘 要 】

Over the 20-year period between 1990 and2010, strong demo¬graphic and economic growth around theworld caused global primary energy consumption to grow at acompound annual rate of 2 percent annually. Even so, fallingenergy intensity (the amount of energy used to produce aunit of economic output) meant that global energy demand in2010 was more than 20 percent lower than it otherwise wouldhave been. The energy intensity of the global economy fellduring the period from 10.2 to 7.9 megajoules per U.S.dollar (2005 dollars at PPP). The reduction was driven bycumulative improvements in energy efficiency, partiallyoffset by growth in activity, resulting in energy savings ofnearly 2,300 exajoules over the 20-year period. Doubling therate of improvement of global energy efficiency is one ofthe three complementary objectives of the Sustainable Energyfor All (SE4ALL) initiative. Launched in the UN GeneralAssembly in September 2012 and co-chaired by the presidentof the World Bank Group and the UN Secretary-General, SE4ALLcalls on governments, businesses, and civil society toaddress urgent energy challenges, including energyefficiency, by 2030.