Electric Vehicle Efficiencies

With just more than thirty thousand miles on our electric vehicle (EV), here are some figures and comparisons with a similar gasoline-powered (ICE) vehicle. (I try to update the costs every year based on the current average price of fuel in Maryland.)

Table 1. Operating costs as of 2021-07-09
EV 2016 ICE Old ICE

Miles

30,663 mi

Efficiency

3.5 mi/kWh

~37 mi/gal[1]

24 mi/gal[2]

Consumed

8,761 kWh

829 gal

1278 gal

Cost per unit of energy

~$0.119 per kWh[3]

$3.141 per gallon[4]

Cost per mile

~$0.034

~$0.085

~$0.131

Total fuel costs

$1,106.58

$2,603.89

$4,014.20

Oil changes

0

10

CO2 emissions

3.38 metric tons[5][6]

7.36 metric tons[7][6]

11.35 metric tons[7][6]
Table 2. Operating costs as of 2022-06-13
EV 2016 ICE Old ICE

Miles

30,663 mi

Efficiency

3.5 mi/kWh

~37 mi/gal[1]

24 mi/gal[8]

Consumed

8,761 kWh

829 gal

1278 gal

Cost per unit of energy

~$0.126 per kWh[9]

$5.014 per gallon[10]

Cost per mile

~$0.04

~$0.14

~$0.21

Total fuel costs

$1,042.56

$4,155.25

$6,406.01

Oil changes

0

10

CO2 emissions

3.38 metric tons[11][6]

7.36 metric tons[7][6]

11.35 metric tons[7][6]
Table 3. Operating costs as of 2023-08-08

EV

2016 ICE

Old ICE

Miles

30,663 mi

Efficiency

3.5 mi/kWh

~37 mi/gal[1]

24 mi/gal[12]

Consumed

8,761 kWh

829 gal

1278 gal

Cost per unit of energy

~$0.14192 per kWh[13]

$3.82 per gallon[14]

Cost per mile

~$0.05

~$0.10

~$0.16

Total fuel costs

$1,414.00

$3,169.06

$4,885.64

Oil changes

0

10

CO2 emissions

3.22 metric tons[15][6]

7.36 metric tons[7][6]

11.35 metric tons[7][6]
1. Fuel efficiencies of passenger vehicles in 2016 according to the U.S. Department of Transportion-Bureau of Transportation Statistics
2. Many cars still on the road still get bad gas mileage.
3. Cost of kWh at Baltimore Gas and Electric as of 2021-07-09
4. Per AAA, U.S. average gasoline price, 2021-07-09
5. Based on the Air Emissions report from BGE, 2020-11-01.
6. Not including production or delivery of the energy.
7. EPA’s Green Vehicle Guide
8. Many cars still on the road still get bad gas mileage.
9. Cost of kWh at Baltimore Gas and Electric as of 2022-06-13
10. Per AAA, U.S. average gasoline price, 2022-06-13
11. Based on the Air Emissions report from BGE, 2020-11-01.
12. Many cars still on the road still get bad gas mileage.
13. Cost of kWh at Baltimore Gas and Electric as of 2023-08-08 (Schedule R)
14. Per AAA, U.S. average gasoline price, 2023-08-08
15. Based on the Air Emissions report from BGE, 2022-12-31.