2012 Chevy Volt, charging, picture copyright GM

Driving 190 electric miles in a Chevy Volt blows up 35 mile range myth


The Chevy Volt is rated by the EPA with a 35 mile electric range, leading some to dismiss its electric capabilities, but last weekend a Florida man set out to see what was his total electric driving range, ending up 190 miles with 6 times the rated electric range.

Does the 35 miles (or so) electric range of the Chevy Volt mean that Volt owners are limited to 35 miles of electric driving per day? Over the weekend a Florida based Chevy Volt owner, Edward Ellyatt, excitedly reported having driven 190.6 electric miles in one day with his Chevy Volt. That's way beyond the 35 mile electric range limit. He is part of a group of Volt owners using the website, VoltStats.net, to share mileage results, achievements and friendly competition with each other to see which of them can make the most of the Chevy Volt.

The Chevy Volt's 35 mile electric range is a factoid used by some of the Volt Naysayers to dismiss that car. What Ellyatt did last weekend was to blow up, and demolish, another electric car myth. Even a car with as short an electric range as the Volt can accomplish a significant chunk of electric driving in a day.

The Chevy Volt is a plug-in hybrid electric car, where the battery pack allows a 35 mile or so electric range, with the gasoline engine providing power to extend the total driving range. GM's design goals for this dual drive train is to fit into the typical daily driving pattern. Research shows most people drive 40 miles or less per day, meaning the Volt's 35-40 mile electric range will handle typical daily driving tasks, and the gasoline engine is a backup to extend range and prevent range anxiety.

What makes Ellyatt's accomplishment interesting is that it goes beyond the math of Chevy Volt Recharging. A full recharge of the Volt's 14 kilowatt-hour battery pack, after the 35 miles (or so) of driving, requires 4 hours or so at a J1772 charging station. Scribbling on the back of an envelope we calculate that 190 miles of electric driving would require 6 recharging sessions, each requiring four hours or so, meaning as many as 24 hours of recharging time, leaving one to wonder just how Ellyatt did the deed.

Especially as Florida weather is already in the 80's during the day, and he drove with the air conditioner on so he and his wife remained comfortable.

How did he do it?

First trick was to drive two segments with the cruise control at 40 miles/hr, on level ground, with few stops. Each of those segments Ellyatt achieved 50+ miles of electric range. How did that work when the EPA says the Volt gets 35 miles of electric range? As the automakers keep saying, the range figures are estimates affected by your driving habits. The same holds true in gasoline cars, where leadfooted street racers get lower miles/gallon than do the careful hypermilers. By staying below 40 miles/hr Ellyatt was able to drive more efficiently, use less energy, and get a longer electric range per charge.

One of those 50+ mile segments lasted 51.3 miles, and the car had 7 miles of range left. Ellyatt says his next goal is to see just how far one can go on a single charge, and believes the car can go over 60 electric miles. Yes, 60 electric miles on a car rated for 35 electric miles.

Pages

Sign-up to our email newsletter for daily perspectives on car design, trends, events and news, not found elsewhere.

Comments

Good comments about opportunity charging and also about how you can get to 80% of full recharge a lot faster than getting to 100%. I think any cafe that lets me plug in while I am eating lunch will get my business. Even 120V can make a difference in 30 minutes! A Volt doesn't need to charge, but it is nice to cover as many miles as possible using American electricity instead of gas that is produced using oil that is imported half of the time.
If you look at voltstats.net.. that is not even the best.. 2011-00584 WATT UP did 254.45 on 09/03/2011

Pages