As of November 2014, the states with the lowest electricity prices included Washington, North Dakota, Louisiana, West Virginia and Oklahoma, as reported by the U.S. Energy Information Administration. At that same time, the states with the lowest residential natural gas prices included Indiana, Illinois, North Dakota, Colorado and South Dakota.
In February 2015, GasBuddy.com identified Utah, Idaho, Montana, Wyoming and South Carolina as the states with the lowest average gasoline prices. States with the highest average gasoline prices included Hawaii, California, Alaska, Nevada and New York.
Several relatively simple methods exist to increase energy efficiency and save money on utility bills. Homeowners living in sunny regions can save up to 40 percent of the energy used for cooling the home by painting the roof white instead of black. Other strategies include turning the temperature of a water heater down to 120 degrees Fahrenheit, regularly cleaning or changing the filter on a heating or air-conditioning system, doing a nightly check to be sure all appliances are turned off and buying ENERGY STAR-certified items, such as appliances, fans and light bulbs. Additionally, some states and utility companies provide financial incentives to entice homeowners to upgrade to energy-efficient appliances, which can help defray the costs associated with buying new items.