Following a record-setting year of plug-in electric vehicle sales in the US, the federal government is continuing an "all-of-the-above" alternative energy strategy to ensure folks don't forget about the wonders of hydrogen fuel-cell electric vehicles (FCEV). In fact, the US Energy Department's National Renewable Energy Laboratory (NREL) is borrowing four FCEVs from Toyota for a couple of years to see just how potentially wonderful they are.

The Toyota Highlander FCEVs will be used by NREL to further infrastructure development while getting a better handle on driving patterns and other data. NREL will also showcase the vehicles at events for public-education purposes and is even conducting a contest for graphic-design students in the Denver area to create decals for the vehicles.

FCEVs are thought of in some alt-fuel circles as a best-of-all-worlds solution because they can go almost as far as conventional gas-powered vehicles on a full tank but emit only water vapor from their tailpipes. Developing both the vehicles and the infrastructure has been prohibitively expensive, though. That said, Toyota is among about eight vehicle makers planning to start selling hydrogen fuel-cell vehicles in 2015, though that model will be based on a sedan, not an SUV. Additionally, the automaker announced a fuel cell technology-development agreement with German competitor BMW last week. The companies will also develop lightweighting technology for the vehicles. NREL's press release is available below.
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NREL Acquires Fuel Cell Hybrid Vehicles from Toyota to Support Hydrogen Infrastructure, Production, and Vehicle Performance Studies

January 28, 2013
The U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) recently received four fuel cell hybrid vehicles - advanced (FCHV-adv) on loan from Toyota through a two-year Cooperative Research and Development Agreement. These vehicles will help NREL enhance its research related to hydrogen fueling infrastructure, renewable hydrogen production, and vehicle performance.

"We're looking at the whole system-from renewable hydrogen production and vehicle fueling equipment to the impact of driving patterns and behavior on vehicle performance," said NREL Laboratory Program Manager for Fuel Cell and Hydrogen Technologies Keith Wipke. "Because the vehicles will be four or five years old by the time our two-year loan ends, we will also be able to observe extended durability and reliability, which is critical to their commercial success."

These vehicles are representative of many fuel cell hybrid designs being proposed by automotive companies today. Toyota plans to introduce a fuel cell hybrid sedan to the U.S. commercial market in 2015.

NREL will showcase the vehicles on loan at a variety of events to educate the public about advanced vehicle technologies and to solicit feedback for assessing consumer acceptance and interest in such vehicles.

Based on the Toyota Highlander mid-size sport utility vehicle platform, the FCHV-adv has a fuel cell system with light-weight high-pressure hydrogen gas tanks, an electric motor, a nickel metal hydride battery, and a power-control unit that determines the split of power from the battery or the fuel cell stack to power the vehicle. When the fuel cell is in use, hydrogen is fed to the fuel cell stack where it is combined with oxygen from the air. The electricity produced by this chemical reaction is used to power the electric motor and charge the battery.

In addition to a high fuel economy (estimated 68.3 miles/kg on-road fuel economy, as verified in 2009 and documented in the Evaluation of Range Estimates for Toyota FCHV-adv report), the vehicles emit no harmful tailpipe emissions-water vapor is the only byproduct.

The vehicles on loan to NREL are fueled with renewable hydrogen made from wind and solar energy thanks to the Wind-to-Hydrogen Project, which uses wind turbines and photovoltaic arrays to power electrolyzer stacks that split water into hydrogen and oxygen. Housed at NREL's National Wind Technology Center, the Wind-to-Hydrogen Project is funded by the DOE Office of Energy Efficiency and Renewable Energy's Fuel Cell Technologies Program.

NREL is hosting a contest for students to design graphic decals for use on the vehicles. Students who are currently enrolled in a graphic design program at a university, community college, or technical school in the Denver Metro area are invited to participate. Three designs will be selected based on adherence to the design specifications and themes described on the contest webpage at www.nrel.gov/hydrogen/design_contest.html.

NREL is the U.S. Department of Energy's primary national laboratory for renewable energy and energy efficiency research and development. NREL is operated for DOE by the Alliance for Sustainable Energy, LLC.

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Visit NREL online at www.nrel.gov


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