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All energy prices vary from month to month and year to year. However, when comparing the national average retail price for a gallon of regular gasoline and a kilowatt-hour (kWh) for residential electricity, the pricing for gasoline is far more volatile. In the two year period shown in the figure below, electricity prices varied by approximately 11% from 11.06 cents to 12.33 cents per kWh. For the same period, gasoline prices varied by approximately 40% from $2.80 to $3.91 dollars per gallon.
National Average Retail Price for Regular Gasoline and Residential Electricity,
October 2010 – October 2012
(Dollars per gallon)
(Cents per kWh)
|Source: U.S. Energy Information Administration, Average Retail Price of Electricity to Ultimate Customers, U.S. Monthly Retail Gasoline Prices|