The Most and Least Energy Efficient States in 2015

To identify the most energy-efficient states, WalletHub analyzed data based on two key dimensions: home-energy efficiency and car-energy efficiency

WalletHub

Energy is expensive. It’s one of the biggest household expenses for American consumers, who, on average, spend nearly $2,000 a year on energy bills. About half of that pays just for heating and cooling.

But energy has much broader implications on the national economy and the environment. According to a McKinsey & Company report, an estimated $520 billion initial investment on energy efficiency measures could save the economy more than $1.2 trillion in the future and potentially reduce annual greenhouse gas emissions by 1.1 gigatons — “the equivalent of taking the entire U.S. fleet of passenger vehicles and light trucks off the roads.”

In order to bring awareness to the impact of energy on our wallets and encourage Americans to conserve more, WalletHub measured the efficiency of car- and home-energy consumption in 48 U.S. states. Due to data limitations, Alaska and Hawaii were excluded from the analysis.

To identify the most energy-efficient states, WalletHub analyzed data for 48 states based on two key dimensions, including “home-energy efficiency” and “car-energy efficiency.” They obtained the former by calculating the ratio between the total residential energy consumption and annual degree days. For the latter, they divided the annual vehicle miles driven by gallons of gasoline consumed. Each dimension was weighted proportionally to reflect national consumption patterns.

Overall Rank

State

Total Score

‘Home-Energy Efficiency’ Rank

‘Car-Energy Efficiency’ Rank

1 New York 93.36 4 4
2 Vermont 89.71 5 7
3 Minnesota 86.63 2 15
4 Wisconsin 85.06 7 8
5 Utah 84.91 1 26
6 Rhode Island 78.90 11 10
7 Colorado 77.07 8 22
8 California 76.91 21 5
9 Connecticut 72.75 20 11
10 Nevada 71.42 16 20
11 Massachusetts 71.06 15 21
12 New Hampshire 70.81 6 36
13 New Mexico 70.27 18 24
14 Maine 69.77 3 42
15 Michigan 69.26 19 25
16 Illinois 67.23 22 28
17 Idaho 66.08 17 33
18 Delaware 65.76 31 6
19 Arizona 64.66 27 12
20 Montana 63.31 9 39
21 Indiana 61.56 33 9
22 Ohio 61.34 28 18
23 Florida 60.18 37 1
24 Oregon 59.29 26 31
25 North Carolina 58.57 39 2
26 Washington 58.05 29 30
27 Kansas 57.37 30 29
28 New Jersey 55.87 23 38
29 Maryland 55.13 32 27
30 South Dakota 52.62 12 45
31 Pennsylvania 51.85 24 40
32 Missouri 51.22 34 23
33 Iowa 50.69 14 46
34 Nebraska 50.48 25 41
35 Alabama 48.10 46 3
36 Wyoming 47.34 10 47
37 Oklahoma 46.18 38 19
38 Mississippi 44.18 42 14
39 Virginia 43.21 36 34
40 Georgia 42.44 45 13
41 West Virginia 42.13 43 16
42 North Dakota 41.64 13 48
43 Tennessee 40.79 44 17
44 Arkansas 38.29 41 32
45 Kentucky 36.44 40 35
46 Texas 32.43 35 44
47 Louisiana 23.57 48 37
48 South Carolina 14.67 47 43
N/A* Alaska
N/A* Hawaii

*Due to data limitations, Alaska and Hawaii were excluded from the analysis.

Source: WalletHub

Read the full report and methodology here.

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EfficientGov is an independent information service providing innovative solutions to fiscal and operational challenges facing cities and towns around the world.