The state rankings, released Wednesday, show Nevadans consumed 239 million Btu per capita in 2010, compared with 303 Btu per capita in 2007.
First among the states in energy consumption was Wyoming, with Rhode Island ranking 50th.
The website, created by the Lexington Institute, also has graded the states on renewable energy efforts. Nevada received a C+ in the analysis, which was 11th best. California, Massachusetts and Colorado received B grades, the highest awarded in the review.
Nevada ranked 17th in net renewable energy generation in 2010 with 4.444 gigawatt hours. The growth in renewable energy generation was up 35 percent from 2007 to 2010.
Renewable energy — and tax incentives to support its development — has become a major political topic in Nevada and around the nation this presidential election year.