EPA

You are currently browsing articles tagged EPA.

What Should an EV MPG Rating Look Like?

October 6, 2009 in Consumer News, EVs, MPG, emissions by kristen | 2 comments

The Environmental Protection Agency has been working diligently on a new system to rate the fuel efficiency of alternative-fuel vehicles. It’s turned out to be tricky, as the dust-up over GM’s claims of 230 mpg for the Chevy Volt and Nissan’s follow-up claims of 367 mpg for its electric leaf showed up this summer.

While the EPA is working this out, the New York Times “Wheels” blog asked a few folks in the know what they thought the fuel economy rating should look like on the window sticker. A few of their suggestions are below; what would you the potential alt-fuel buyer like to see? Tell us in the comments.

  • ETV Motors of Israel wants three pieces of information: the all-electric range, the electric efficiency in miles per 10 kW hours, and gasoline fuel efficiency for plug-in hybrids
  • Think! of Norway wants to measure energy usage during a standard driving cycle, maybe with a star rating
  • Coda Automotive prefers to see the battery range and a statement about the car’s emissions-free status

Chevy Volt Will Get 230 MPG … Maybe. On a Good Day

August 12, 2009 in Biz News, EVs, Future Cars, MPG, emissions by kristen | 2 comments

It’s been a while since we’ve heard any real news about the Chevy Volt, and now GM has captured our green imaginations by claiming that the extended-range electric car will get 230 mpg. Now the EPA, GM, and of course the blogosphere are saying that number may be too good to be true.

GM used the EPA’s new mileage model for electric cars to come up with that massive 230 mpg. There are two problems with this, though: The EPA hasn’t finalized the electric car methodology; and the Volt isn’t purely electronic. Though the first 40 miles are all electric, the Volt has a small engine that uses gasoline and acts as a generator for the electric motor. The engine never powers the car directly, but this is the kind of hiccup that has kept the EPA from giving its mileage equivalency methods the green light.

That doesn’t take into account the Volt’s carbon dioxide emissions, or if the driver is a pedal-smashing speed freak, or if the power comes from a wind farm or a coal plant, or any number of things. Before the EPA could say, “Hey, wait a minute … ” GM had whipped up a 230 logo with a smiling outlet and a green background.

EPA’s SmartWay Transport Program

July 20, 2009 in Biz News, Hybrids, MPG, diesel, emissions by kristen | No comments

I recently bought a new computer, and I noticed that the box the sales associate put in my cart had a sticker reading “SmartWay Transport Partnership.” It had the same leaf-and-road logo as the Environmental Protection Agency’s SmartWay auto certification program, so I thought I’d look into it.

It turns out it’s no big secret, the SmartWay Transportation Partnership. The agency has partnered with the trucking industry to reduce fuel consumption and polluting emissions, including carbon dioxide. The aim is to save 3.3 to 6.6 billion gallons of diesel fuel per year, which amounts to about 150 million barrels of oil.

How can they get there? There are a few strategies, some of which are easier to do than others:

  • Limit the amount of time truck engines are left to idle
  • Improve aerodynamics to increase fuel economy
  • Better trip planning to use less fuel
  • Automatic tire inflation systems
  • Use trucks with hybrid powertrains, or at least start-stop technology

The EPA keeps a long list of SmartWay Transport partners, which includes hundreds of trucking companies. If your green business has grown to the point where you need to get product further than the craft fair downtown, this may be a good resource. Consumers like me notice those little SmartWay stickers, you know.

CAFE Standards: What You Need to Know

May 26, 2009 in Biodiesel, Bioethanol, Consumer News, EVs, Hybrids, Hydrogen, MPG, PHEVs, diesel, small cars by kristen | 2 comments

Last week, President Barack Obama announced new CAFE standards. While these new numbers seem like a big leap to require auto manufacturers to make, they were a long time in coming. Fuel economy standards hadn’t been significantly revised in nearly a decade. The new standards have the benefit of being constructed with input from auto makers and states who wanted higher standards, so a bunch of potentially expensive and contentious lawsuits were dropped as a result. Whew.

Here’s how it all breaks down:

  • The average fuel economy of the manufacturers’ car and light truck fleets will increase by 5% every year beginning in 2012 and ending in 2016
  • Cars must average 39 mpg; light trucks and SUVs must average 30 mpg by 2016
  • Overall average will be 35.5; current overall average is 25 mpg
  • Will go hand-in-hand with EPA initiative to reduce tailpipe CO2 emissions by 40%

What’s not known is how extended-range electric vehicles like the Chevy Volt or hydrogen cars like the Honda Clarity will figure into the calculations. The feds say they’re working on it.

If you’d like this information in a live, five-minute video starring yours truly, check out Portland’s KGW NewsChannel 8.