Cutaway view of Toyota RAV4 EV
Cutaway view of Toyota RAV4 EV, similar to type used by Southern California Edison. Three of these vehicles now have over 100,000 miles on their original NiMH battery packs.

EPRI Says EVs Soon Competitive

Interview with Louis Browning, co-author of EPRI's latest advanced batteries report

By Bill Moore

Just two days before California's Air Resources Board (CARB) met in Sacramento to consider significant revisions to the state's 12-year-old Zero Emission Vehicle mandate, the Electric Power Research Institute (EPRI) released a month-long study entitled, "Advanced Batteries for Electric-Drive Vehicles -- A Technological and Cost-Effectiveness Assessment for Battery Electri, Power Assist Hybrids, and Plug-in Hybrid Electric Vehicles."

Louis Browning, a consultant with ICF Consulting, co-authored the study, along with Mark Duvall, Dean Taylor, Michel Wehrey, Naum Pinsky, Bill Warf and Friz Kalhammer.

What the study concluded was that recent tests and real world applications indicate that nickel metal hydride (NiMH) batteries are now demonstrating lifecycles far greater than CARB's 2000 battery study projected.

That earlier studied saw advanced NiMH batteries as having lifecycles in the range 600-1200 recharges or about 70,000 miles. Subsequent laboratory bench tests and daily driving experience now indicates that these batteries can last at least 2,0000 recharge cycles or greater, giving their vehicles the ability to operate 130,000 to 150,000 miles before the batteries need replacing. This is a dramatic change in just three years.

EV World talked with Mr. Browning about the report and its implications. You can listen to that interview by clicking the Play Audio links in the right-hand column. The total interview is just under 30 minutes in length.

New Policy

Effective immediately, we have decided to not provide free transcripts or write-ups to this or future interviews. Instead, later this Spring we will be introducing our much-delayed subscription model to access selected content on EV World, including our exclusive interviews. At that time, subscribers will have full access to both audio and text versions of our interviews and feature stories.

We are implementing this policy to provide our paid subscribers with not only improved content, but more in-depth content, as well as to pay for the time, expense and effort it takes to generate this material. The subscription will be modest, probably under $30US annually for access to a maximum number of articles each year, a model similar to that used by the Boston Globe. In addition to improved coverage, we will also be able to eliminate much of the advertising on the site, something many readers have asked us to do.

We believe you will find this new approach far better in terms of the quantity and quality of the material we can present you.

But for now enjoy, EV World's interview with Lou Browning.

Times Article Viewed: 3115
Published: 05-Apr-2003


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