I've looked at the Chevy Bolt, since that is the cheapest decent EV (after current incentives) in my state. Here's what they say about the Bolt: > If a driver

I've looked at the Chevy Bolt, since that is the cheapest decent EV (after current incentives) in my state. Here's what they say about the Bolt: > If a driver owns a Nissan Versa, Hyundai Elantra, or Kia Forte, it's set to cost them about $9.78 in gas for every 100 miles. > But switch to a Nissan Leaf or Chevrolet Bolt, and that increases to about $12.55 in home-charging expenses The highest mpg ICE car of the three they list gets 39 mpg highway, so 100 miles would use 2.56 gallons. Bolt level 1 charges at 4 miles/hour. Typical home 120 V circuits are 15 A max, so lets assume that is how many amps it charges at. For 100 miles that would be 25 hours @ 4 miles/hour. That would use 25 hours x 120 V x 15 A = 45 kWh of electricity. We pay about $0.12/kWh here which would put 45 kWh at $5.40. The Bolt wins unless I can get gas for under $2.11/gallon. It's over $5/gallon here right now, so the Bolt wins big. Furthermore, Google tells me the Bolt actually only charges at 8 A at 120 V. If that is what the 4 miles/hour charge rate is based on then the Bolt would actually win unless gas was below $1.13/gallon. Google also tells me that there is a manual override that raises it to 12 A. If that's what the 4 miles/hour was based on gas would need to be under $1.69/gallon for the Bolt to lose. Looking at this from the other direction, the state with the cheapest gas right now is Mississippi at around $3.30/gallon, which would be $8.45 for 100 miles in a Kia Forte. Using 4 miles/hour charge @ 120 V, 12 A for the Bolt gives 36 kWh for 100 miles of charge. That would beat a Kia Forte on Mississippi gas anyplace where electricity is under $0.23/kWh. That's every state except Alaska, Rhode Island, Massachusetts, Maine, California, New Hampshire, Connecticut, and Hawaii. In general, the Bolt wins when charged at level 1 at home given electricity at $E/kWh and gas at $G/gallon if: 14.1 < G/E Here is G, E, and G/E for US states and DC: G E G/E State $4.72 $0.42 11.2 Hawaii $3.65 $0.31 11.9 New Hampshire $3.79 $0.31 12.1 Connecticut $3.71 $0.29 12.8 Massachusetts $3.78 $0.29 12.9 Maine $3.70 $0.27 13.8 Rhode Island ----- Bolt wins below this line ----- $5.03 $0.30 16.9 California $4.37 $0.25 17.6 Alaska $3.76 $0.21 17.9 Vermont $3.87 $0.20 18.9 New York $3.66 $0.19 19.7 Michigan $3.59 $0.17 20.7 Wisconsin $3.87 $0.18 21.2 Pennsylvania $3.72 $0.17 21.7 New Jersey $3.66 $0.17 22.0 Delaware $3.48 $0.15 22.5 Ohio $4.02 $0.18 22.5 Illinois $3.94 $0.17 23.1 District of Columbia $3.31 $0.14 23.5 Mississippi $3.78 $0.16 23.5 Maryland $3.44 $0.15 23.7 Alabama $3.64 $0.15 23.9 Virginia $3.48 $0.14 24.0 Texas $3.67 $0.15 24.3 Indiana $3.56 $0.15 24.3 West Virginia $3.53 $0.14 24.5 South Carolina $4.32 $0.17 24.8 Nevada $3.80 $0.15 25.0 Minnesota $3.82 $0.15 25.1 Florida $3.57 $0.14 25.3 Kansas $3.63 $0.14 25.9 Georgia $3.77 $0.14 26.6 Iowa $3.86 $0.14 27.0 Arizona $3.59 $0.13 27.1 North Carolina $3.46 $0.13 27.6 Kentucky $3.97 $0.14 27.6 Colorado $3.47 $0.12 28.1 Tennessee $3.74 $0.13 28.1 New Mexico $3.47 $0.12 28.2 Arkansas $3.58 $0.12 28.7 Missouri $3.77 $0.13 29.0 South Dakota $3.42 $0.12 29.2 Louisiana $3.53 $0.12 29.8 Oklahoma $3.94 $0.13 30.7 Montana $3.68 $0.12 31.0 Nebraska $3.71 $0.12 31.7 North Dakota $3.83 $0.12 32.1 Wyoming $4.63 $0.13 35.8 Oregon $3.98 $0.11 36.8 Idaho $4.06 $0.11 37.4 Utah $4.97 $0.11 44.5 Washington