Based on a comparison of 132 countries in 2011, China ranked the highest in electric power consumption with 4,432,901 GWh followed by USA and Japan. On the other end of the scale was Eritrea with 289 GWh, Haiti with 326 GWh and Congo with 725 GWh.
Total electric power consumption reached 20,329,882 GWh in 2011 in the World according to World Bank / EIA. This is 3.27 % more than in the previous year and 30.1 % more than 10 years ago.
Historically, total electric power consumption reached an all time high of 20,329,882 GWh in 2011 and an all time low of 1,501,901 GWh in 1960. The average annual growth amounted to 5.24 % since 1960.
The top ranked country, China, accounted for 21.8 % of electric power consumption in the world. The top 3 countries hold a 47.0 % share while the ten largest countries some 68.5 % in 2011.
Data for more countries are available at Electric Power Consumption indicator page.