Professor Barry Solomon was recently interviewed for WalletHub’s article on “2015’s Most & Least Energy-Expensive States” that investigated various criteria that impact monthly energy costs across the nation. They looked at monthly costs for electricity, natural gas, gasoline, and home heating oil to come up with an “Total Energy Cost” for each state. These costs range from a low of $223 in the District of Columbia to a high of $410 in Connecticut (Michigan came in at #27 at $304). Because the total monthly cost is a mixture of the four energy source costs, states’ rankings are not in any immediate pattern because, as the author points out, “lower prices don’t always equate with lower costs, as consumption is a key determinant in the total amount of an energy bill.”