Tuesday, July 21, 2009

Easy EV intro

Electric vehicles (EVs) are the next big thing in the automotive industry. They're quieter, cleaner, and less expensive to "fill up." There are, however, a few rather significant hurdles to full-scale adoption of EVs. This week we'll touch on a few of those items.

Let's start with a quick summary of the different EV options available.

Option #1: Electric Vehicle (EV)
While not as well-known, there are a small number of companies currently producing electric, highway-capable cars with performance similar to traditional gas-powered cars. Most of the major car brands have also announced plans for their own EVs to be available in the near future.

Pictured: Fully electric "Tesla Roadster"

Option #2: Neighborhood Electric Vehicle (NEV)
Most of the electric vehicles currently available are called neighborhood electric vehicles because they have limited miles per charge and a maximum speed of up to 35 miles per hour. These vehicles are perfect for the shorter, local trips that most people take everyday. Models range from golf carts to full cars with prices from $2,000 to $13,000.

Pictured: NEV "ZENN"

Option #3: Plug-in Hybrids

Plug-in hybrids combine an internal combustion engine with rechargeable batteries to maximize the range and versatility of the vehicle. For short trips, the electric batteries power the car. For longer trips, the gas engine switches on to recharge the batteries and power the car. Plug-in hybrids are the most promising near-term solution to reduce emissions and transition to an all-electric future.

Unfortunately, plug-in hybrids are not yet commercially available. Currently, the only way to get a plug-in hybrid is to have an existing hybrid vehicle converted by a specialty mechanic. In the coming years, a number of car makers have committed to put plug-in hybrids into production.

Option #4: Electric Conversions
Can’t find an electric vehicle to suit your needs? Make one! Specialty
mechanics can convert almost any existing gas-powered vehicle into an electric
vehicle. It only takes a few days to pull out all the gas-engine pieces, install an
electric engine, and put in batteries. The cost, range, and charge time of your new electric vehicle will depend primarily on what kind of batteries you select.

Good: Lead acid batteries are the least expensive and get 35-30 miles per charge.
Better: Nickel-metal hydride batteries get 60-100 miles per charge.
Best: Lithium ion batteries are the most expensive and get 200+ miles per charge.

Tomorrow - building an EV infrastructure!