EcoWorld » Gridpoint & Electric Vehicles

EcoWorld » Blog Archive » Gridpoint & Electric Vehicles: "How Much Electricity for all Commuters? ” you can calculate what it would take to replace our combustion-driven automotive fleet with electric vehicles. The assumptions that the spreadsheet default to (which you can change to anything you wish) indicate that based on 4.0 kilowatt-hours per mile, and 40 miles per day of average driving per vehicle, it would take 10 gigawatt-hours to power 1.0 million electric vehicles. At ten hours of off-peak charging per night, that would be an additional 1.0 gigawatt of off-peak energy going into the grid per each additional 1.0 million electric vehicles. But if the winds come and go, and the solar peak is in the middle of the day, where will this energy come from?"