That’s West Virginia’s ranking in the 2018 State Energy Efficiency Scoreboard published by the American Council for an Energy-Efficient Economy (ACEEE)..
This represents a drop of two positions from 2017. West Virginia scored 5.5 points out of a possible 50, one point less than it scored in 2017.
The rankings are based upon evaluations of state policies on such things as utilities, building energy efficiency standards, combined heat and power, and appliance standards. States are given points based upon the strength of their policies in each of the categories.
To see the details of the ratings, etc. go to aceee.org.