Arizona electricity rates in December 2017 averaged 12.24 cents per kilowatthour -- an estimated 2 percent less than the 12.50 cents per kilowatthour average rate in the U.S. overall in December 2017.
Arizona natural gas rates in December 2017 averaged 14.37 dollars per thousand cubic feet -- an estimated 54 percent more than the 9.33 dollars per thousand cubic feet average rate in the nation overall in December 2017.
Los Angeles and Honolulu lead the way when it comes to solar power generation in the U.S. There are also some surprising cities cracking the top 10.
Last year was a record-breaking one for solar power generation in the U.S., and 2016 looks to have an even brighter future, the SEIA said.
For the first time ever, natural gas is expected to surpass coal as an electricity generating source in the United States.
Arizona has an estimated population of 6,392,017, which ranks 18th in the nation. 
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For more information about energy in Arizona, or to learn more about AZ energy, visit the EIA.