PEV owners can expect to see an increase in their electric bill. The increase will vary depending on the amount the vehicle is driven and how the vehicle is charged. However, electricity is a less expensive transportation fuel then gasoline and diesel so owners are still saving.
Below is a graph showing monthly gasoline prices since 1970 vs. pricing of electricity for the same timeframe in a dollars per gallon equivalent.
* Based on a plug-in electric vehicle with an efficiency of 3.4 miles per kWh (like the Nissan Leaf) and an internal combustion engine vehicle with a 30 mpg rating.
Source: Energy Information Administration, Short-Term Energy Outlook, May 2011. Data compiled, converted, and presented by the Edison Electric Institute.