Tags: Top 5 Most, The United States, Canada, Energy Statistics
Sources: U.S. Energy Information Administration: Annual Energy Review 2009.
List Notes: Data is energy consumption for North America for the year 2006. The British thermal unit (Btu) is a traditional unit of energy equal to about 1 055.05585 joules. It is approximately the amount of energy needed to heat 1 pound (0.454 kg) of water 1 degree F (0.556 C).