THE
HYBRIDS ARE COMING
|
 |
|
November 2003
|
by Don Huntington
Photos by Brad Shifflett
I’ve
been a fan all my life of transportation alternatives
and still regret that the steam engine car and the gyrocopter,
both of which I wanted to buy, died almost at birth.
The standard automobile technology, with its inefficient
and pollution-generating internal combustion engine,
has been with us since 1903 when gasoline-powered cars
took ascendancy over steam-powered automobiles. The standard
internal combustion engine has soundly defeated all challengers
until, finally, “a new kid on the block”
is providing consumers with a genuine alternative.
The emerging HEV (hybrid electric vehicle) technology
has a chance of overcoming the almost insurmountable
barriers to creating a successful revolution in automobile
technology because of one, indisputable fact: These things
really get great mileage.
How HEV Works
The most widespread misconceptions about HEV technology
are cleared up when you realize that an HEV is much different
than a BEV (battery electric vehicle). You never have
to plug one of these babies in!
Battery-powered vehicles have been around longer than
Willie Mays but never got into the mainstream marketplace
because they could never overcome the grim reality that
a battery-powered vehicle has to have a truly enormous
battery in order to provide conventional performance.
In fact, someone said that a battery-powered automobile
is a vehicle designed to carry around a battery. The
only way it can carry much more than its battery is to
have a much larger battery.
HEV technology is based upon the fact that most of
the time an automobile really doesn’t need such
a huge battery. A car at cruising speed requires a minor
amount of energy. Once you understand the concept of
the “hybrid-electric” drive system, you can
see that it really is a great idea! The revolutionary
idea is to put a small battery into a car with a small
gasoline engine and electric motors. The engine generates
electricity that powers the motors that operate the car.
The gasoline engine stores extra electricity in the
battery to be called upon when demand for power increases
— such as during acceleration or when climbing
a hill. The power from the gasoline engine is additionally
diverted to the drive chain to assist the electric motors
during periods of high demand.
The small engine in an HEV doesn’t speed up or
slow down, but just runs smoothly at its most efficient
RPMs to keep the battery charged and to provide sufficient
electricity to the electric motors to maintain cruising
speed, and to supplement the power of the electric motors
in times of particularly high demand. In technical terms,
the engine is only required to handle the maximum continuous
load not the peak load.
An Egg for the HEV Beer
In fact, the hybrid solution gets even better than that.
Stepping on the brakes in any vehicle generates heat.
Heat, of course, is energy, which the hybrid vehicle
captures and runs through generators thus creating additional
electricity. As much as half of the energy extended in
braking may be recovered in this way.
When the engine in a hybrid doesn’t need to run
(at least in the Toyota version), it just shuts itself
off. Obviously, the engine shuts itself off whenever
the car stops moving, but it can even shut itself off
when, for example, the car is coasting. The electric
motor itself is sufficient in that case to charge the
batteries. On the other hand, when you need acceleration
right away, both the engine and the electric motor work
to give the vehicle the power it needs. It’s amazing!
Hybrid cars are wonderfully quiet. At first it seems
strange that you don’t have to use a starter. It
is startling to stop moving and have everything go perfectly
quiet. Most fun of all for some hybrid owners is enjoying
the looks they’re getting from fellow drivers.
Some other drivers are curious about how your car actually
works and others are grateful for what you’re doing
to keep the earth inhabitable for their kids and grandkids.
Since the drive system in an HEV combines the three
sources of power (engine, battery, and electric motors)
into a unified propulsion system, the engine in an HEV
shrinks to a fraction of the size required in the smallest
normal car. Weight is reduced. Cost is reduced. Efficiency
is increased. Fuel consumption plunges. The environment
is protected. And, best of all, you save money. Most
people don’t realize that hybrid-electric vehicles
can have performance advantages in addition to better
mileage. As a matter of fact, hybrids are banned from
Formula 1 competition by the international sanctioning
body because they would have an unfair advantage on the
track.
Passing the Pumps
The fuel efficiency on hybrid vehicles is quite amazing.
Here are the mileage reports from the three hybrids currently
on the market.
| Model |
City |
Highway |
| Toyota Prius |
45 |
52 |
| Honda Civic Hybrid |
47 |
50 |
| Honda Insight |
57 |
56 |
Sometimes the fuel-efficiency report on the window sticker
of a new car doesn’t really represent the miles
per gallon that an individual will actually get. However,
drivers are reporting getting just over 40 combined city/highway
driving. This is an increase of about 10 MPG over the
fuel consumption by a typical subcompact. On the other
hand, Consumer Reports Magazine, which reports these
MPGs, uses a special course, including a series of stops
and a set pattern of speeds, which ensures that each
car’s gas consumption can be measured under the
same conditions. Some owners not driving under these
constraints claim much higher mileage than reported by
Consumer Reports research.
One driver calculated that driving 15,000 miles per
year and paying $1.50 per gallon, his HEV, in that case,
was saving him $250 per year in gas. The owner of a Pizzeria
estimated that delivering pizzas in his Prius saved him
up to $10 a day. That comes to $200 in savings per month!
Nobody would object to anything that saved them even
$250 per year (that’s the cost of a new TV). It’s
difficult, however, to get real excited about that. However,
I love the other savings that HEV owners report. Owners
of hybrid cars are able to drive past many more gas stations
than owners of standard automobiles. That rate of increase
also means a savings of about 12 trips to the service
station per year.
My wife and I hate filling up cars with gas. In fact,
I have to fill up hers and mine. The whole experience
of picking out a station, finding a pump that is actually
working, doing the credit-card thing, and standing around
while the gas is flowing into the tank represents minutes
out of my life. It would be great to save a bunch of
these trips to the gas station every year. (What I really
want is a 500 gallon gas tank!)
A Quiet Sneaky Machine
GM is planning hybrid diesel combat vehicles for the
Army and the initial hybrid Humvees will be showing up
in the Army’s catalog in a few years. It turns
out that hybrid technology has an advantage that some
of us might not have thought of. One general made the
comment, “You run those things on battery power;
there’s no noise.”
The general didn’t mention another advantage:
having a bunch of hybrids in a military situation would
relieve some stress on supply lines, since the hybrids’
wonderful gas mileage would have the obvious effect of
requiring fewer shipments of fuel to keep the hybrid
part of any military effort mobile.
Making Mother Nature Happy
Even greater savings from these hybrid cars than those
passing into owners’ pockets are savings that are
passing into the environment. Hybrids greatly reduce
auto pollution, which plays a proven role in contributing
to respiratory diseases, heart conditions, lung damage,
and cancer.
Every time hybrid owners get into their cars they can
congratulate themselves about the step they have taken
to reduce stress on the environment. In the very place
where hybrid owners live, work, and play they no longer
create the excessive pollution that creates so many problems.
As one commentator said about hybrids, “They pollute
less, they consume less, and darn it, they make you feel
good.”
When the original Honda hybrid came to market a couple
years ago a TV ad depicted a Honda Insight pulling up
next to an old VW bus with a cloud of smoke coming from
its exhaust and sporting a prominent sign, “Save
the Earth.” The ad very effectively got across
the meaning that buying a fuel-efficient, nonpolluting
automobile is far better than a bumper sticker as a way
for people to demonstrate their concern for nature.
It’s in everybody’s ultimate interest to
get these things on the road. The Insight pollutes only
half as much as most compact cars. They produce only
25% of a larger vehicle’s output of greenhouse
gases.
Because of their concern for the environment, courageous
politicians in several counties in Florida have paid
the extra money to equip some of their deputies with
these environmentally friendly hybrids. In addition to
saving the environment, the cars appeal to the Florida
bureaucrats’ patriotism by helping reduce the country’s
reliance on foreign oil.
By buying over 100 of the hybrids, the State of Florida
has become one of the leaders in government purchase
of these cars. One of the hybrid cars is used for safety
inspection of government facilities and bears on its
side a Homeland Security label, causing the Sierra Club’s
global warming coordinator in Florida, Darden Rice, to
call it “the most patriotic car in America.”
Hybrid owners might even congratulate themselves in
helping to preserve the human race from extinction, since
scientists tell us that carbon dioxide emissions from
the burning of fossil fuels play a leading role in global
warming.
Just the Facts, Ma’am!
A gallon of gas weighs only about six pounds but scientists
tell us that, when burning in an automobile engine, those
six pounds of gas create carbon that combines with oxygen
from the air to create about 19 pounds of carbon dioxide.
We can apply simple arithmetic to our hypothetical
example of saving ten MPG and driving 15,000 miles per
year, and show that the driver is saving 150 gallons
of gas a year. That means that every year the hybrid
owner is pumping 2,850 fewer pounds of carbon dioxide
into the air than if he/she drove a standard subcompact.
At the other end of the scale, the fuel consumption
for an Enzo Ferrari is rated at eight MPG in city traffic.
Gas consumption goes up to 12 MPG on highway conditions.
(I wasn’t able to find out what the gas consumption
on the highway drops to when one of these Ferraris is
driven at 150 mph.)
GM, which markets and distributes the latest version
of the Hummer (Humvee), claims 10-13 MPG for the huge
vehicles, but dealers say Hummers actually average 8
to 10 MPG. Mileage for the Ford Expedition “soars”
(in comparison) to 14-19 MPG, and the three-quarter-ton
Chevy Suburban gets 13-17 MPG.
It’s a curious fact that Hummers are so heavy
they are exempt from mileage-reporting requirements.
Of course, let’s admit that anyone who pays $75,000
for an automobile to drive to the grocery store or to
a movie theater isn’t concerned about paying $100
per month for gasoline.
The Actual Reality
According to www.fueleconomy.gov, even the hybrids create
a lot of pollution — over three tons of greenhouse
gasses for the Insight and over four tons for the Prius.
That seems like a lot of pollution and these cars look
good in that field only when compared to the five tons
of greenhouse gasses produced by a typical subcompact.
Of course, they look great when compared to the 14
tons of greenhouse gasses produced by some SUVs and luxury
cars.
Uncle Sam Will Pay Us?
The Federal Government sees the advantage of the hybrid’s
contribution to cleaning up the environment. The Clean
Air Act provides a one-time $2,000 tax deduction to hybrid
drivers. Under the same law, businesses can save even
more.
Actually, the government doesn’t quite pay us,
but it does provide a hefty tax deduction for those who
purchase an HEV. The government designed the income tax
deduction as a means of offsetting the higher manufacturing
costs of these vehicles, which cost auto makers more
to make.
Everyone who purchases one of the new hybrids before
the end of 2004 is entitled to a tax credit of at least
$2,000, with the following provisions and restrictions
(from the IRS).
1. You are the original buyer.
2. You have certification from your dealer or manufacturer
of the cost difference between your hybrid gas/electric
vehicle and an all-gasoline model.
3. You can deduct the cost differential, up to $2,000,
on your individual income tax return for the year the
car was purchased.
4. If you are buying the vehicle this year, claim the
deduction on your 2003 income tax, which you will file
in 2004. You claim the deduction as an adjustment to
income. You do not have to itemize deductions to take
the deduction. Make the adjustment to your income on
Line 32 of your 1040 and write “clean fuel”
on the dotted line. This can also be done if you bought
the car in 2002 and have filed for an extension.
5. If you already own a hybrid gas/electric vehicle,
the IRS says you can claim the tax deduction retroactively
for the past two years when these vehicles were available.
Get certification of the cost differential from your
dealer or manufacturer and file an amended tax return
Form 1040X for the year you bought the vehicle.
6. Keep the dealer or manufacturer’s certification
for your records.
For taxpayers in the top bracket (38.6%), a $2,000 deduction
amounts to $772 off the amount of taxes being paid.
It’s the Law
Here are two passages quoted directly from the Electric
Vehicle (EV) and Alternative Fuel Vehicle (AFV) Tax Provisions
— Job Creation and Worker Assistance Act of 2002
(Public Law — 107–147).
10% tax credit, up to $4,000, available to businesses
and individuals that purchase a BEV, FCEV, or a hybrid
EV that is “primarily powered” by electricity
before December 31, 2006. The credit begins to phase
out in 2004 and sunsets December 31, 2006.
A tax deduction, based on the incremental cost of the
vehicle, for clean-fuel vehicles (including hybrid electric
vehicles) from $2,000 to $50,000 depending on the gross
vehicle weight (gvw). The deduction begins to phase out
in 2004 and ends in 2006.
Serpents in the HEV Paradise
Of course, this being the real world, hybrid technology
doesn’t create an automotive nirvana. For one thing,
there is a nagging question: How much extra money can
an intelligent consumer afford to spend on a new car
for the purpose of saving gas through increased gas mileage?
Honda currently subsidizes hybrid manufacturing and
distribution, but it is still a fairly expensive purchase.
All the hybrid cars cost $20,000, or more, which compares
to similar-size cars which might cost half that. How
much gas could you buy for the $10,000 difference?
Some analysts maintain that hybrids have too many unknown
costs relative to the benefits of great gas mileage.
The cost of annual maintenance is about the same as that
of conventional cars, but a potential source of additional
expense will come when the hybrid’s special batteries
need to be replaced. You can’t use DieHard batteries
in these things! Replacements will cost thousands of
dollars.
It should be noted, hybrids are sold with longtime
warrantees on the batteries — 100,000 miles for
the Toyota and 80,000 for the Honda.
How Much Saving? How Soon?
A hypothetical case study can illustrate the amount of
money that you might actually save.
For example, suppose you purchased a Saturn SL 2 for
$13,000 and spend $700 a year for fuel. This would be
$350 more per year than you would spend fueling the Insight.
You would have paid $7,000 more for the Insight. The
$350 savings on gas won’t make up for the $7,000
extra spent on the car for 20 years.
On the other hand, mileage savings is greatest in the
city, which would mean that if you drive mostly in city
traffic, you’re going to pay back the $7,000 much
more quickly.
Also, who knows how much gas is going to cost in two
years? If you bought one of these cars and gas went up
to $5 per gallon, you would look like a genius!
The High Price for Novelty
Potentially expensive drawbacks are inherent in any emerging
technology. For example, the innovative hybrid drive
trains are built to brand-new and competing design and
marketing standards. Next year’s drive train might
be completely different from this year’s. When
Ford and GM get into the market, their cars will be built
to different standards yet.
An old joke in another industry runs, “The good
thing about standards is that we have so many of them.”
Of course, the joke is that multiple standards are, in
fact, not good.
The issue of new technology also raises the potentially
annoying problem of not being able to take the car to
George and Stan’s garage down on the corner because
neither George nor Stan knows anything about the drive
train and probably have no plans ever to find out. This
means you’ll have to take your hybrid car back
to a dealer for maintenance and repairs which, of course,
is no problem if (A) the dealer is right down the street
and (B) you have a lot of money in your checking account.
The problem is compounded by the reality that hybrid
vehicles are selling only a few thousand units per year.
Only 150,000 have been sold worldwide in the 2.5 years
since hybrids were introduced. After-market manufacturers
and junkyards aren’t going to compete strongly
to provide cheap replacement parts. Rare parts create
expensive maintenance. If hybrids move quickly to other
manufacturing standards, manufacturers will not be anxious
to produce the now-obsolete parts.
It’s the Size
The lack of a lot of users flocking to buy these new
machines was reflected by the attitude of the dealership
we visited. No brochures were available for either Honda
hybrid. Nor could I test drive an Insight because the
dealer didn’t have any on the lot. The salesman
told me that the dealership didn’t sell enough
Insights to keep them in stock, since buyers thought
they were expensive for a two-passenger car.
A different kind of problem comes for some people from
the fact that hybrid cars are smaller cars. An engineering
principle called “mass decompounding” means
that reducing weight and drag in hybrid vehicles increases
their efficiency. Soccer moms who needs to transport
kids, equipment, and groceries at the same time need
to purchase some larger kind of transportation.
Of course, many Americans just like things that are
biiigggg. Half of all vehicles sold in the United States
are SUVs and pickup trucks, which belong at the other
end of the size continuum from the little hybrids. My
neighbor lives by himself and owns an SUV so large it
fills his whole driveway. He is a handicapped person
but his other vehicle is a perfectly useless (to him)
pickup truck that is so enormous he can’t shut
his garage door on it.
Huge SUVs and oversize pickup trucks are selling like
hot dogs at a ballpark. No vehicle is too big. In spite
of the drawbacks of the Humvee’s immense sticker
prices and truly gargantuan proportions, dealers are
selling out their Hummer inventories without offering
discounts, rebates, or special financing. GM, the company
making and marketing the Hummer sold 18,861 H2s in 2002,
its first year on the market. “It’s been
a wildly successful launch for us,” GM spokesman
Chris Preuss said.
Another negative marketplace force against the hybrids
is apparent on any page of the dozen sport car magazines
in circulation today. The sad fact is that many of us
will always choose pleasure when making a choice between
something good for our self-esteem and something good
for our wallets and for our world.
An Actual Experience
I went to one of our local Honda dealers to get an actual
experience of driving one of these revolutionary machines.
The Honda Civic hybrid I drove didn’t actually
seem like a revolutionary machine. Outwardly, it looked
much like any other Civic. The instrument console was
interesting. All the meter levels — gas, heat,
battery, etc. — were indicated by nifty circular
violet analog bars.
The most interesting part of the driving experience
was the battery charge indicator. The readout had two
sides indicating whether the batteries were being charged
or were contributing power. It was fascinating watching
the indicator change from one side to the other as the
car accelerated or slowed.
Performance was indistinguishable from any Civic. Acceleration
was perfectly acceptable. The car maintained freeway
speeds with no problem. The operation was quiet, but
then new Civics are always quiet-running machines.
Getting on the HEV bandwagon
Many auto manufacturers are now allocating hefty resources
to the research and development of hybrid-electric cars,
which is a huge leap forward in its own right. Toyota
and Honda have been selling these for a couple years
by themselves. General Motors and Ford are spending millions
in an effort to catch up.
Strong forces are pushing the case for hybrids. Environmentalists
are championing the cause, of course. They see in the
clean-running gas-miserly cars a partial solution to
the problem of cleaning up the environment as well as
reducing the pressure to drill more oil wells. Government
regulators in Sacramento are putting into place rules
to curb greenhouse gas emissions and other pollutants.
Hybrid technology is really the only game in town at
this time for car companies trying to respond to this
challenge.
The chairman of Ford recently made the frank admission,
“Hybrid technology is one that has great appeal
because we don’t have to really invent anything.”
And then added, “If these vehicles don’t
get customer acceptance, I really don’t know what
we do next.” So perhaps the tide is beginning to
turn for the beleaguered hybrid industry.
As the hybrid industry matures, cars will continue
to improve, and a groundswell of acceptance will move
many more buyers into the hybrid marketplace. Analysts
are predicting that hybrids could eventually capture
as much as 15 percent of American vehicle sales, depending
upon government incentives, gas prices, and manufacturing
costs. Pressure for adopting hybrid technology is being
exerted by the Japanese, who really believe that hybrids
are going to be core to sales in the automotive industry
for the next ten years or so.
What Will They Think of Next?
Car makers are finding ways to apply parts of the HEV
technology to increase gas mileage in larger vehicles.
Ford has demonstrated in a “concept” prototype,
a three-ton Super Duty Tonka Pickup, that uses the hybrids’
trick of storing energy from braking. The Tonka Pickup,
however, conserves the energy from braking in a hydraulic
tank, which it then reuses when starting up.
Here’s how that works: The Tonka Pickup turns
off its diesel engine when it comes to a stop and then
uses the stored energy from the hydraulic launch-assist
system to get rolling again. The engine only starts back
up when the Tonka Pickup reaches 20 MPH.
This system performs the remarkable trick of increasing
the Tonka Pickup’s starting and stopping performance;
at the same time it is increasing the truck’s mileage
in city driving by 30-40 percent.
Car makers are gearing up for a broader rollout. GM
finally announced they were getting into the technology
and would sell a hybrid version of its Saturn Vue sport
utility vehicle in 2005 and announced modified versions
of the hybrid which will offer more modest fuel increases.
Here are some other bright ideas that are being made
into (or put into) next-generation products:
Honda Dualnote
Sports car prototype that conserves energy from braking
in an “ultracapacitor,” which is a storage
device with a much higher discharge capacity than any
battery. The result is a hybrid sports car that boasts
400 horsepower and whiplash acceleration, while averaging
42 MPG.
Lexus SUV
Luxury hybrid — planning to sell 300,000 units
per year.
Ford Escape hybrid SUV
Gets 40 MPG while turning in 200 horsepower performance
on a four-cylinder engine.
Mobile generators
Dodge and GM hybrid trucks will be equipped
to act as power generators during a blackout, or at a
remote construction or camping site.
Hydrogen fuel cells
Hydrogen fuel cells will be in widespread production
before long. The hydrogen fuel cell produces electricity
by combining hydrogen and oxygen. The only byproduct
is water. No pollution whatsoever. The first production
plant opened almost a year ago.
Hybrid power will soon become an option on new cars
— like buying a CD Player or air conditioning.
When new car buyers have a choice between an SUV that
gets 40 MPG and one that gets 26, how could they not
opt for the higher mileage?
Buying a new car is one of the largest investments
some of us make. Hybrid cars complicate the decision.
Now we have to make a choice for or against increased
fuel efficiency and helping keep the environment clean.
Whether a hybrid becomes our next car-buying choice,
or not, these new types of automobiles are here for the
long haul. The rising price of oil and the declining
tolerance for pollution will ensure the survivability
of these cars into the foreseeable future.
We each can make a decision about what role these hybrids
will play in our immediate future.
|