Hydrogen and Fuel Cells

What is a Hydrogen Fuel Cell?

Hydrogen fuel cells were invented in 1839 and have enjoyed a long life of powering scientific and government equipment over the past century.  Hydrogen fuel cells powered the Gemini and Apollo space missions and provided power to the Space Shuttle and many smaller vehicles. Hydrogen fuel cell technology has been tested and numerous vehicle manufacturers are bringing commercial fuel cell electric vehicles to market in 2012.  Laboratories throughout the country, including Virginia institutions, continue to work to perfect fuel cells for low cost commercial use through improvements in technology.

Like batteries, fuel cells convert chemical energy into electricity. The main difference between the two technologies is that fuel cells use external chemical fuel. For vehicles, hydrogen is commonly stored in tanks that are 20x stronger than regular gas tanks. The main type of fuel cell use catalysts to convert hydrogen to protons and electrons.  The electrons travel through a circuit containing an electric load (like an electric motor) and power that circuit before catching up protons, which flow through a membrane in the fuel cell.  When the protons and electrons recombine, the byproduct is water.

Hydrogen (H2) is the simplest and lightest fuel, and is in a gaseous state at atmospheric pressure and ambient temperature. Hydrogen may contain low levels of carbon monoxide and carbon dioxide, depending on the source.  Hydrogen is being explored for use in combustion engines and fuel cell electric vehicles. On a volumetric basis, the energy density of hydrogen is very low under ambient conditions. This presents greater transportation and storage hurdles than for liquid fuels. Storage systems being developed include compressed hydrogen, liquid hydrogen, and physical or chemical bonding between hydrogen and a storage material (for example, metal hydrides).

The ability to create hydrogen from a variety of resources and its clean-burning properties make it a desirable alternative fuel.  Although there is no significant transportation distribution system currently for hydrogen transportation use, we can transport and deliver hydrogen for early market penetration using the established hydrogen infrastructure; for significant market penetration, the infrastructure will need further development.

Hydrogen fuel cells can be built to practically any size, which means that they can power anything from a spacecraft to a truck to a cell phone.

How is Hydrogen for Transportation Fuel Made?

Hydrogen can be produced using diverse, domestic resources including fossil fuels, such as natural gas and coal (with carbon sequestration); nuclear; and biomass and other renewable energy technologies, such as wind, solar, geothermal, and hydro-electric power.  One common way to produce hydrogen is through electrolysis, which separates water into hydrogen and oxygen.  Researchers are working to develop a wide range of technologies to produce hydrogen economically and in environmentally friendly ways.

What are the Benefits of Using Hydrogen as a Transportation Energy Source?

Expanded use of hydrogen as an energy source in this country could help address concerns about energy security, global climate change, and air quality. Fuel cells are an important enabling technology for the hydrogen future and have the potential to revolutionize the way we power our nation, offering cleaner, more efficient alternatives to the combustion of gasoline and other fossil fuels. Hydrogen’s main benefits are: stronger national security, reduced greenhouse gas emissions, improved air quality, and increased energy efficiency.

What is the Transportation Market for Hydrogen?

The hydrogen market has great potential for transportation applications. At the end of 2008, Hundreds of hydrogen-powered light duty vehicles were on U.S. roads and drove a total of 1,100,000 miles that year.  At this time, government and industry are working together to overcome technical and cost barriers.  Numerous vehicle manufacturers are advancing vehicles for commercial sale to the general public, including Daimler, Ford, GM/Opel, Honda, Hyundai/Kia, Renault, Nissan, and Toyota.

There are numerous hydrogen fueling stations, both for private and public use. To view all hydrogen stations across the country, go to the AFDC’s Alternative Fuels Station Locator.  Virginia currently has one hydrogen refueling station at Fort Belvoir, and one station in planning phase south on 95.

Virginia Clean Cities sees compressed natural gas as a natural transition to hydrogen because infrastructure, refueling, storage, etc. are similar. This is one of the reasons Virginia Clean Cities promotes fleet adoption and use of CNG. Additionally, advances in electric drive systems benefit fuel cell, hybrid electric, and electric vehicles.

Where Can I Get More Information About Hydrogen?

Learn about hydrogen research and development by visiting the following sites:

Current Clean Cities Hydrogen Projects

Virginia Hydrogen Education Activities

Virginia Clean Cities is engaged in a project to increase understanding of hydrogen and fuel cells, including information about early market applications, and to provide specific examples of actions that can benefit the community.  More information is available at our seminar page.

Virginia Hydrogen Economy Roundtable

Virginia Clean Cities coordinates the Virginia Hydrogen Economy Roundtable, representing participants from over thirty organizations, whose purpose is to determine the potential role for hydrogen systems in Virginia’s energy future. The Roundtable completed work on “Virginia’s Vision and Strategy for the Hydrogen Economy” and are now working on implementing the recommendations, such as hydrogen teacher training workshops. Download the strategy document here.

hydrogeneconomy

Building a Hydrogen Economy in Virginia

As concern for energy security grows, so does the level of interest at the national and state levels. Fuel cells and hydrogen-sourced energy are regarded as viable long-range technologies that one day could alleviate the United States’ dependence on foreign oil, reduce harmful emissions, and create thousands of new jobs. Forty-seven states and the District of Columbia have fuel cell or hydrogen legislation, technology demonstrations or other hydrogen initiatives in place or under consider¬ation today. Many are laying the groundwork for adoption of these technologies in regulations and energy standards. With a commitment of resources, Virginia has the potential to play a significant role in the building of a hydrogen economy in the United States.

This plan recommends actions to foster the development of a hydrogen economy in Virginia. A range of three levels of effort and commit¬ment is offered: 1. Commit significant resources 2. Leverage existing efforts and 3. Stay informed and maintain current level of effort. The recom-mendations have been developed by the Virginia Hydrogen Economy Roundtable (the Roundtable), a forum created in 2002 comprised of representatives from more than thirty energy and transportation related industries, federal and Virginia government agencies, Virginia academic institutions, and non-governmental organizations.

The following five actions are recommended as priorities to help focus Virginia’s continuing efforts to build a hydrogen economy:

    • Educate our future workforce, focusing on K-12 education
    • Leverage the research and development (R&D) potential of Virginia’s academic institutions
    • Invest in hydrogen demonstration projects with high visibility
    • Foster partnership building
    • Coordinate policies and incentives to drive the building of a hydrogen economy in Virginia

A range of options is offered for each of the first four action items and several possible approaches to coordinate policy setting and an incentives strategy are discussed:

Educating Virginia’s K-12 Students

    • Option 1: Commit Resources for the Education of K-12 Students
    • Option 2: Implement Pilot Hydrogen Curriculum and Teacher Training Program for Middle Schools
    • Option 3: Implement the Green Box Program in 6th Grade Classrooms

University Research &Development

    • Option 1: Create a Statewide Hydrogen R&D Consortium
    • Option 2: Universities Form Voluntary Partnerships
    • Option 3: Universities Continue Independent R&D Efforts

Demonstration Projects

    • Option 1: Develop a Hydrogen Highway Corridor
    • Option 2: Consider Discrete Demonstration Project Grants
    • Option 3: Pursue external funding opportunities with existing resources

Partnership Opportunities

    • Option 1: Create a Formalized Virginia Hydrogen Network
    • Option 2: Join Forces with Existing Regional Partnerships
    • Option 3: Support Partnerships upon Request

Policy Setting and Funding

    • Create a Hydrogen Policy Commission to coordinate policy setting, review hydrogen-related initiatives and establish a Hydrogen Demonstration Incentive Fund.

Creating an environment in Virginia in which hydrogen-focused economic development can thrive will require a commitment to pursuing these measures.

To read the report in its entirety, click here.

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3 comments

  1. current high school student says:

    i have a school project to do over this and i have no idea how to do it or what it is talking about. so if you could please help me!!!!

  2. VIRGINIACLEAN says:

    That sounds like an interesting project! We also suggest visiting the Alternative Fuels Data Center at http://www.vacleancities.org/wp-admin/#comments-formhttp://www.afdc.energy.gov/fuels/hydrogen.html to begin your research on hydrogen fuel cells. Good luck!

  3. Howard Reed says:

    I never realized that fuel cells have existed since the 1800’s. I thought they were a more modern invention. Even thought fuel cells can be used to create electricity, I am wondering if the size of the fuel tank can be compared to that of conventional batteries in weight and energy provided. I hope we can come up with an even more efficient way to make and store energy.

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