Tag: volt

Part One: Kicking Gas to the Curb

  • Ted Bohn, a researcher at Argonne National Laboratory in the Chicago suburbs, shows off a modified Saturn Vue with a lithium-ion battery in the rear (Photo by Gabriel Spitzer)

One of the great hopes for a green
car is the plug-in hybrid. It’s like a regular
gas-electric hybrid, only you can plug in at
night. That charge is supposed to let most
people make a typical commute without the gas engine. Carmakers and the government are throwing a lot of money at the technology – GM and Chrysler both hope to release models in the next few years. But the cars might not deliver what boosters promise. In the first part of our series on saving gas, Gabriel Spitzer
reports on what new research says about plug-in hybrids in the real world:

Transcript

One of the great hopes for a green
car is the plug-in hybrid. It’s like a regular
gas-electric hybrid, only you can plug in at
night. That charge is supposed to let most
people make a typical commute without the gas
engine. Carmakers and the government are
throwing a lot of money at the technology – GM
and Chrysler both hope to release models in the
next few years. But the cars might not deliver
what boosters promise. In the first part of
our series on saving gas, Gabriel Spitzer
reports on what new research says about plug-in
hybrids in the real world:

Ted Bohn is a researcher at Argonne National Laboratory in the Chicago
suburbs and he’s showing off his ride.

“So this a prototype, plug-in hybrid vehicle. The rear half is a 10
kilowatt-hour battery.”

It’s a modified Saturn Vue, with a big old lithium-ion battery in the rear.

That battery is like what runs your iPod – only it weighs as much as a
linebacker.

Ted Bohn: “If you actually had to drive less than 40 miles on a typical
day, you could drive the whole day without starting the engine.”

Gabriel Spitzer: “Could you drive this very vehicle 40 miles round-trip
without starting the engine?”

Ted Bohn: “Close. If you drive slowly. To be honest, 25 to 30 is what
you’ll really do – driving on a nice day downhill with a tailwind is 40,
more realistically, 25 to 30.”

The thing is, you don’t hear those little caveats from some people, like, say,
General Motors.

“You plug it in. And they expect you’ll get up to 40 miles without a drop
of gas. Wow. The Chevy Volt. I’ve heard the future, and it hums.”

That 40-mile range is based on EPA tests.

Argonne scientist Aymeric Rousseau, with backing from the government,
compared those measures to how people drive in the real world.

Based on more than 100 drivers in Kansas City, he found that 40 mile range
shrinks to about 30.

Flip on your AC, and it’s more like 20.

“People now think about, you know, your mileage may vary. Now we
have to think about, your electrical distance may vary, depending on
how you drive, and what accessories you’re using.”

Rousseau says factors like aggressive driving sap the all-electric range.

And don’t forget – we’re talking Kansas City, here.

“When we talk to people from the EPA they actually say that people in
California drive more aggressively than people in Kansas City.”

General Motors concedes the point.

Rob Peterson is a spokesman for GM.

He says driver behavior can have some affect on the all-electric range.
Though …

“I wouldn’t go as low as 28 to 32.”

He says for a reasonable driver, the Volt can still get about 40.

And how about those pedal-to-the-metal Californians? Well, he says GM
studied exactly those people.

“For 64% of the people that we tested, they would be able to finish their
day with a petroleum-free and a tailpipe-emission-free commute.”

That’s not exactly what Argonne found.

Granted, the batteries they looked at were a little smaller than the Volt’s.
Size matters when it comes to batteries.

Said Al-Hallaj teaches at the Illinois Institute of Technology.

He says carmakers could build a battery that would boost up the all-electric
range – the problem is money.

“If you’re talking about a 25% increase, you know, from 30 to 40 miles,
that could mean thousands of dollars. So that could take it out of the
price range that will make it actually practical for the industry to make
it.”

Al-Hallaj says as the technology improves, so will drivers.

People are already getting better at squeezing fuel efficiency out of their
cars.

“For the first time I see people even worried about closing the window
versus opening the window because of drag. And we’re talking about
common people here, just trying to pay attention to, if your tires are not
properly inflated, the you have prob — so people start adapt and
probably get the best out of your battery.”

So it’s not that a plug-in hybrid can’t get 40, it’s just that you need to drive
like a grandmother to do it.

But if gas prices continue to climb, we may be seeing a lot more grannies
behind the wheel.

For The Environment Report, I’m Gabriel Spitzer.

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Auto Show Shows More Green

This week, the North American International Auto Show in Detroit opens to the public. Every year, the event is a showcase for the newest trends for tomorrow’s cars and trucks, and this year, the big trend is fuel-efficient vehicles. Cleaner cars have been promised before, but Dustin Dwyer reports that this year’s green car concepts could be more than just an attempt to polish up a dirty image for the auto industry:

Transcript

This week, the North American International Auto Show in Detroit opens to the public.
Every year, the event is a showcase for the newest trends for tomorrow’s cars and trucks,
and this year, the big trend is fuel-efficient vehicles. Cleaner cars have been promised
before, but Dustin Dwyer reports that this year’s green car concepts could be more than
just an attempt to polish up a dirty image for the auto industry:


The press previews for this year’s Detroit auto show were made up of three straight days
of back-to-back new product launches. Dozens of new vehicles were unveiled. Hundreds
of glossy brochures were offered to reporters, and nothing generated as much interest as
the new Chevrolet Volt concept vehicle:


(Sound of buzzing)


A packed crowd gathered for the flashy and noisy unveiling. GM executives announced
that the concept car could run up to 40 miles without using a single drop of fuel. It runs
instead on electricity cranked out by its next-generation lithium-ion batteries. When the
liquid fuel system eventually does kick in, it recharges the battery for better fuel
economy, getting up to 150 miles per gallon.


And as GM CEO Rick Wagoner told the audience, the Chevy Volt represents a new way
of thinking for the world’s largest automaker. It comes from a realization that oil alone is
highly unlikely to supply enough energy for all of tomorrow’s vehicles:


“For the global auto industry, this means that we must as a business necessity, develop
alternative sources of propulsion based on alternative sources of energy in order to meet the
world’s growing demand for our products.”


GM wasn’t the only automaker to unveil a fuel conscious vehicle at this year’s auto show.
Ford’s Airstream concept, and Toyota’s FT-HS sports car concept both featured hybrid
style powertrain systems, backed by a lithium-ion battery.


It might not be all that surprising for automakers to release such vehicles after a year in
which gas prices surged beyond three dollars a gallon, but analyst Jim Hall of Auto
Pacific says gas prices aren’t the reason for automakers to get into low or no emission
vehicles.


“You do it for two reasons, one, the potential of getting out of the business of making a
mechanical engine that has to be machined and made of multiple pieces and assembled,
and the other part of it is, you never have to spend another penny on emissions controls,
and emissions research, and emissions development and emissions engineering, which, at
every major car company is billions of dollars.”


So, basically, greener technology will eventually be cheaper technology. That means that
for perhaps the first time in the history of the auto industry, the interests of
environmentalists and the interest of business-minded bean counters are finally in line.


The big question now is how to get to that greener future. The concepts at this year’s
Detroit auto show all point to lithium-ion batteries as the next frontier. These batteries
are more powerful, and potentially cheaper than the batteries in today’s hybrids, but
they’re also less stable, and don’t last as long.


GM executives say they think they can resolve those issues and have a lithium-ion
powered vehicle by the end of the decade, but Jim Hall says no way:


“I worked on an electric vehicle program when I was employed in the auto industry
directly, and I learned that there are three kinds of liars in the world. There are liars,
damn liars and battery engineers.”


Of course, not everyone agrees with Hall’s assessment. Some lithium-ion proponents
even argue that the technology could be ready to go right now. Ford, General Motors and
the Chrysler Group have asked the federal government for more funding to speed-
development of lithium-ion batteries.


They say the Japanese government is giving its car companies several hundred million
dollars for battery development, and they want a comparable effort from the US
government. But even if Detroit automakers don’t get the money, almost everyone agrees
that big changes are coming for the auto industry, and that decades-long battle between
the good of the environment and the good of carmakers could be coming to a close.


For the Environment Report, I’m Dustin Dwyer.

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