Tomorrow the Volt will have 4 months on it. Here is the data so far (one nice thing about the Volt is that it keeps most of this data for you. The remainder is easily calculated).
| Total Miles | 3,852 |
| Electric Miles | 2,858 |
| Gas Miles | 994 |
| Percent Electric | 74 |
| Kilowatt hours per 100 miles | 35 |
| Total electric cost | $99.03 |
| Total gas cost | $82.36 |
| Total cost per mile driven | $.05 |
To figure overall gas savings, we’ll take the average price of gas over the last 4 months ($3.30) and calculate how much gas we would have had to use to get the same number of miles in a 25mpg car (our Honda CRV), less the amount of money spent on electricity over the period.
Electric Miles: 2,858
Gallons Saved: 114.3
Money Saved: $377.19
Electricity Cost: $99.03
Net Money Saved: $278.16 (over 4 months)
Annual Money Saved: $1,112.64
There is also another factor. Even though the car has almost 4,000 miles on it, the engine only has 994 miles. Engine maintenance (oil change) won’t be due for a long time. The electric motor requires no maintenance, so this car will have a significant savings in service also. We’ll save that for a later report.
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