Frequently Asked Questions

How much energy is consumed in the world by each sector?

World marketed energy consumption was about 524 quadrillion Btu in 2011.1 There are four major energy end-use sectors: commercial, industrial, residential, and transportation. The electric power sector also consumes energy. The electricity it produces is consumed by the end-use sectors. There are also losses in electricity generation, transmission, and distribution. The electricity consumed by the four major energy end-use sectors and electricity losses can be apportioned to these respective end-use sectors to calculate their total energy use. Losses are the difference between the amount of energy used to generate electricity and the energy content of the electricity consumed at the point of end use.

World energy consumption by end-use sector (quadrillion Btu) and shares of total energy use, 2011 (includes losses in electricity generation, transmission, and distribution);

  Energy EndUse2 Electricity Losses3 Total Energy Use4 Share of Total Energy Use
End-Use Sectors        
Commercial
29
34
62
12%
Industrial 200
66
266
51%
Residential
52
40
92
18%
Transportation
101
2
103
20%
Total End-Use Sectors
382
 
524
 
         
Electric Power Sector4
204
   
39%
Total Electricity losses3
142
     

1This is the most recent year for which data are available at the time of update.
2Energy end-use includes end-use of electricity but excludes losses.
3Electricity losses includes generation, transmission, and distribution losses.
4Total energy use includes electricity losses.

Learn more:
International Energy Outlook 2013
International Energy Outlook (Appendix F1)

Created: November 20, 2013


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