Unassuming
and unimpressive at first glance, a small battery-powered truck is sitting
largely unnoticed to passersby outside the Solar-Dish Power Generation
Systems on Flamingo Road at UNLV.
In reality, it is the center of a
multimillion-dollar hydrogen fuel cell research and development project
between UNLV Research Foundation, UNLV Center for Energy Development and
the U.S. Department of Energy.
The conversion of the vehicle to
one powered by a fuel cell costs approximately $50,000. The bulk of the
money went to the 5.5 kilowatt fuel cell that was purchased from Massachusetts-based
Nuvera Fuel Cells for approximately $30,000. Two high-pressure fuel tanks
cost $5,000 each. The mechanical and electrical engineering schools at
the UNLV Howard R. Hughes College of Engineering acquired the white-and-black
vehicle from the Las Vegas Valley Water District.
UNLV's Rick Hurt points to full
cells retrofitted on the truck.
"The primary thrust of the research
has been with cars," said Robert Boehm, distinguished professor of mechanical
engineering and a leader on the project. "But the (fuel cell) technology
can also be used in remote power systems and future uses for cell phones,
computers and other batteries."
The car breathes in air and mixes
with hydrogen carried in high-pressure tanks in the fuel cell. The mixture
produces the electricity that powers the vehicle.
SUMMER DEBUT
The vehicle is part of the Hydrogen
Filling Station Project. Launched in 2003, UNLV has been developing a filling
station for the water district. The truck, along with a second vehicle,
will be returned to the water district. Funded year to year, the university
and the water district hope to have the station opened by the end of the
summer. The water district would then be able to expand its fleet of fuel-cell
vehicles in the future.
UNLV is producing the hydrogen through
electrolysis by splitting water with electricity. The first few phases
of the project are going to be powered by solar photovoltaic cells.
"We see that as being a very green
way of going," Boehm said. "It's something that you can run very easily
off of solar or wind to generate the electricity."
One of the long-range goals is to
develop an infrastructure in the hopes of being able to purchase fuel-cell
vehicles commercially in the near future. Some experts believe that the
cost of producing hydrogen fuel can be brought down over time if renewable
resources such as wind, geothermal and/or solar are utilized in the conversion
process.
The project is one of many interdisciplinary
research and development projects taking place at UNLV with funding from
U.S. Senate Energy and Water Appropriations subcommittee. Senate Minority
Leader Harry Reid (D-Nev.), who is a ranking member of the committee, has
helped funnel $48.05 million to the school for various research and development
projects during the past two fiscal years.
UNLV is not the first local entity
to pursue hydrogen fuel cell technology and receive help from Sen. Reid
in the process. In 1999, the City of Las Vegas joined the Clean Cities
Program under the DOE. A letter from Sen. Reid asked the DOE to help subsidize
the cost and instillation of a hydrogen fuel site. In 2002, the first Hydrogen
Energy Center in the country was opened in northwest Las Vegas. The $10.8
million price tag was shared between the DOE and Air Products and Chemicals.
The Pennsylvania-based company also provides fuel to the Space Shuttle
program.
While providing energy for the state's
power grid, the facility's primary function is research into creating a
hydrogen fuel infrastructure that will be essential to making fuel cells
a viable fuel alternative to gasoline.
CARS BEING USED BY CITY
The city currently leases two Honda
FCX vehicles in the city's motor pool. At a cost to the city of $600 a
month, the $1 million cars are used by the city manager, city council members
or the mayor and parking enforcement supervisors. One of the cars is usually
seen at high-profile occasions such as grand openings or other special
events. Last Wednesday, it was outside City Hall and has also been used
in the Helldorado parade.
According to Dan Hyde, manager of
fleet and transportation services for the City of Las Vegas, he approached
all the major car manufacturers trying to convince them to lease vehicles
to the city before Honda finally agreed. Las Vegas is in the second year
of a year-to-year leasing program. With the price of the vehicles still
out of consumers' reach, and a lack of a connective infrastructure, Hyde
believes the nation is still 10 to 15 years away from seeing cars with
fuel cells in driveways. Also, Honda FCX cars currently only travel 90
to 120 miles between fuelings, an average of approximately 10 miles per
gallon. The cost to fill up the vehicle is equivalent to paying $4.50 a
gallon for gas, according to Hyde.
"It's an amazing technology to see
how it's evolving so quickly," Hyde said. "We are of the belief that the
technology is there and that the resources are there. The only thing we
seem to lack now is the will to get it done, which I think might be changing."
The senate and the DOE, responding
to political pressure to lessen the country's dependence on oil, have launched
a concentrated effort to pursue hydrogen fuel cells as a renewable energy
source. Hydrogen is attractive to its proponents because it is one of the
most common elements on Earth. During the 2003 State of the Union address,
President Bush announced the $1.2 billion Hydrogen Fuel Initiative. Since
2005, UNLV has received nearly $20 million related to hydrogen fuel research.
'ULTRA-CLEAN OPTION'
In a Feb. 9 speech before the U.S.
Senate Committee on Energy and Natural Resources, DOE Secretary Samuel
Bodman said the department will ask for $195.8 million for research and
development of hydrogen and fuel cell technology for fiscal 2007, saying
it "holds the promise of an ultra-clean and secure energy option for America's
energy future." If approved, it would be a 26 percent increase over the
2006 fiscal budget.
Some critics have expressed concern
over the wide flammability limit of hydrogen, a highly combustible gas.
A very limited amount of the gas has to be present to combine with a spark
to cause an explosion. Advocates of the fuel cells' safety point out that
hydrogen, unlike gasoline or natural gas, is lighter than air and less
dense, so it dissipates very quickly, seldom getting to the lower flammability
limit. Only education and wider public understanding will convince consumers
that people are not driving a four-wheel Hindenburg. According to Hyde
and other fuel-cell proponents, combustible engines pose a greater threat.
With rising gas prices, environmentalists
and a growing number of politicians are increasingly calling for more renewable
energy options like the one being developed at UNLV. Although the science
has advanced and the economics continue to come down, the real challenge
to any change will be the development of an infrastructure capable of supporting
whole new fuel consumption.
"I am certainly not optimistic in
the next five years," Boehm said. "In 10 years I think we're going to get
to see quite a few (fuel-cell vehicles), but probably not before 20 years
in terms of a really big- scale application."

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