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Natural gas plays an essential role in the nations
    transition to a clean-energy future. Twice as clean as
    coal and vastly underutilized today, natural gas is
    found in vast abundance throughout our nation. As a
    result, it presents the only option of adequate scale
    to make meaningful improvements over the next 10
    years in both reducing our carbon footprint and
    clearing the air in communities across our country.
    Natural gas also is an essential partner to the
    development of renewables, providing clean, reliable
    back-up power when the sun sets or wind dies down.
         When used to generate electricity, natural gas emits
          half the CO2 emissions of coal, 80% less nitrogen
          oxides and virtually no sulfur dioxide, mercury or
          particulate matter.
         Natural gas is currently under-utilized for power
          generation and could be called into duty very quickly
          to provide cleaner energy and have an immediate
          pollution-reduction impact.
                                                                                                   In Colorado, Governor Bill Ritter
         Natural gas vehicles emit 25% less CO2 than                                              signed into law the Colorado Clean
                                                               1
          vehicles that run on traditional gasoline or diesel.                                     Air-Clean Jobs Act. And, its going to
                                                                                                   make the kind of real progress we
    Cleaner for Power Generation                                                                   need in communities across this
    Natural gas emits just over half of the CO2 per megawatt-hour                                  country. Theyre going to retire and
    (MWh) of a coal plant and modern natural gas combined cycle                                    retrofit older coal-fired power plants in
    turbines emit 60 percent less CO2 per MWh than a typical existing                              non-attainment areas. Its going to
                2
    coal plant.                                                                                    bring down NOx emissions by 80%
                                                                                                   over the next eight yearsand
    The emissions of CO2 from coal-fired electricity generating
    facilities are the largest single source of greenhouse gas                                     probably sooner. And, its going to do
                                       3
    emissions in the United States. In fact, coal-fired power plants                               so through a greater embrace of low-
    currently account for 80 percent of all the CO2 emissions from the                             emission energy sourcesamong
    U.S. electric power industry and about 33 percent of all U.S. CO2                              them natural gas. And, along the way,
    emissions.
                 4                                                                                 its going to add to the more than
                                                                                                   130,000 Colorado jobs already
    If we doubled the utilization of the natural gas capacity to 85                                supported by natural gas
    percent from 42 percent, you could displace about 19% of the
    CO2 emissions associated with coal power, or 635.651 million
    metric tons of CO2. This amounts to an 8.8 percent reduction of all
                                5
    CO2 emissions in the U.S.




1
  Emissions of Greenhouse Gases Report, Energy Information Administration (EIA), December 3, 2009.
2
  Displacing Coal with Generation from Existing Natural Gas-Fired Power Plants, Congressional Research Service, January 19, 2010.
3
  2010 U.S. Greenhouse Gas Inventory Report, EIA, April 2010.
4
  Annual Energy Review 2008, EIA, June 2009.
5
  Displacing Coal with Generation from Existing Natural Gas-Fired Power Plants, Congressional Research Service, January 19, 2010.
A Strong Partner for Renewable Energy
    Natural gas is a critical foundation for the development of renewable energy projects in the United States. Renewable
    energy sources  wind and solar energy  are intermittent, meaning they can only produce power when the wind is
    blowing or the sun is shining. For this reason, renewable energy facilities frequently partner with natural gas power
    plants to ensure that cleaner electricity is reliably provided during peak demand periods. Through the existing,
    extensive pipeline network and the established connections to the electric transmission grid, natural gas is readily
    available and accessible to aid the development and viability of renewable energy.

    Cleaner for Fleet Vehicles
    After the electric power industry, the transportation sector accounts for 30 percent of U.S. CO2 emissions, with more
                                               6
    than 225 million automobiles on the road. Powering more of our nations fleet vehicles, from city buses to heavy-duty
    trucks and light-duty vans, with natural gas can be a crucial step in helping reduce oil imports and promote cleaner air
    in our communities.
    According to the EPA, natural gas is the cleanest alternative transportation fuel commercially available today. It
                                                                                          7
    produces roughly 25% less CO2 emissions per vehicle mile traveled than gasoline. The fastest way to deliver
    immediate improvements to our environment is to focus on the busiest and heaviest vehiclesconversion of
    commercial fleets, municipal trash trucks, transit and school buses, delivery vehicles, taxi cabs and shuttles. These
    busy vehicles are the largest individual consumers of foreign oil and emitters of pollutants. They also can be
    supported by a focused, regional fueling infrastructure.
    Conversions to natural gas vehicles are happening across the country. Los Angeles has 2,800 natural gas buses in
    operation and Boston, Dallas, Phoenix and Washington, DC also have significant fleets. Major companies including
    AT&T, UPS and Ryder are similarly embracing NGVs. How much of an impact can this leadership have? Converting
    just one waste truck from diesel to natural gas is the pollution-reduction equivalent of removing as many as 325 cars
                   8
    from the road.

    Natural Gas in Americas Clean Energy Portfolio
    America could realize substantial environmental, economic and national security benefits  including near-term
    reductions in carbon emissions  by using natural gas more effectively in four key ways:

         Increasing the utilization of existing natural gas power plants;

         Expanding the conversion of coal-fired generating facilities to natural gas;

         Using natural gas as a reliable complement to other alternative energy sources; and

         Increasing the use of natural gas as a vehicle fuel.

6
  The Impact of a Federal Renewable Portfolio Standard, Wood Mackenzie, February 2007.
7
  Alternative Fuels and Advanced Vehicles Data Center, U.S. Department of Energys Office of Renewable Energy and Energy Efficiency, last accessed May 28, 2010.
8
  The Case for Natural Gas The Most Abundant, Clean And Cost-Efficient American Fuel, An Issue Brief, NGVAmerica, February 23, 2009.

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Environmental Benefits

  • 1. Natural gas plays an essential role in the nations transition to a clean-energy future. Twice as clean as coal and vastly underutilized today, natural gas is found in vast abundance throughout our nation. As a result, it presents the only option of adequate scale to make meaningful improvements over the next 10 years in both reducing our carbon footprint and clearing the air in communities across our country. Natural gas also is an essential partner to the development of renewables, providing clean, reliable back-up power when the sun sets or wind dies down. When used to generate electricity, natural gas emits half the CO2 emissions of coal, 80% less nitrogen oxides and virtually no sulfur dioxide, mercury or particulate matter. Natural gas is currently under-utilized for power generation and could be called into duty very quickly to provide cleaner energy and have an immediate pollution-reduction impact. In Colorado, Governor Bill Ritter Natural gas vehicles emit 25% less CO2 than signed into law the Colorado Clean 1 vehicles that run on traditional gasoline or diesel. Air-Clean Jobs Act. And, its going to make the kind of real progress we Cleaner for Power Generation need in communities across this Natural gas emits just over half of the CO2 per megawatt-hour country. Theyre going to retire and (MWh) of a coal plant and modern natural gas combined cycle retrofit older coal-fired power plants in turbines emit 60 percent less CO2 per MWh than a typical existing non-attainment areas. Its going to 2 coal plant. bring down NOx emissions by 80% over the next eight yearsand The emissions of CO2 from coal-fired electricity generating facilities are the largest single source of greenhouse gas probably sooner. And, its going to do 3 emissions in the United States. In fact, coal-fired power plants so through a greater embrace of low- currently account for 80 percent of all the CO2 emissions from the emission energy sourcesamong U.S. electric power industry and about 33 percent of all U.S. CO2 them natural gas. And, along the way, emissions. 4 its going to add to the more than 130,000 Colorado jobs already If we doubled the utilization of the natural gas capacity to 85 supported by natural gas percent from 42 percent, you could displace about 19% of the CO2 emissions associated with coal power, or 635.651 million metric tons of CO2. This amounts to an 8.8 percent reduction of all 5 CO2 emissions in the U.S. 1 Emissions of Greenhouse Gases Report, Energy Information Administration (EIA), December 3, 2009. 2 Displacing Coal with Generation from Existing Natural Gas-Fired Power Plants, Congressional Research Service, January 19, 2010. 3 2010 U.S. Greenhouse Gas Inventory Report, EIA, April 2010. 4 Annual Energy Review 2008, EIA, June 2009. 5 Displacing Coal with Generation from Existing Natural Gas-Fired Power Plants, Congressional Research Service, January 19, 2010.
  • 2. A Strong Partner for Renewable Energy Natural gas is a critical foundation for the development of renewable energy projects in the United States. Renewable energy sources wind and solar energy are intermittent, meaning they can only produce power when the wind is blowing or the sun is shining. For this reason, renewable energy facilities frequently partner with natural gas power plants to ensure that cleaner electricity is reliably provided during peak demand periods. Through the existing, extensive pipeline network and the established connections to the electric transmission grid, natural gas is readily available and accessible to aid the development and viability of renewable energy. Cleaner for Fleet Vehicles After the electric power industry, the transportation sector accounts for 30 percent of U.S. CO2 emissions, with more 6 than 225 million automobiles on the road. Powering more of our nations fleet vehicles, from city buses to heavy-duty trucks and light-duty vans, with natural gas can be a crucial step in helping reduce oil imports and promote cleaner air in our communities. According to the EPA, natural gas is the cleanest alternative transportation fuel commercially available today. It 7 produces roughly 25% less CO2 emissions per vehicle mile traveled than gasoline. The fastest way to deliver immediate improvements to our environment is to focus on the busiest and heaviest vehiclesconversion of commercial fleets, municipal trash trucks, transit and school buses, delivery vehicles, taxi cabs and shuttles. These busy vehicles are the largest individual consumers of foreign oil and emitters of pollutants. They also can be supported by a focused, regional fueling infrastructure. Conversions to natural gas vehicles are happening across the country. Los Angeles has 2,800 natural gas buses in operation and Boston, Dallas, Phoenix and Washington, DC also have significant fleets. Major companies including AT&T, UPS and Ryder are similarly embracing NGVs. How much of an impact can this leadership have? Converting just one waste truck from diesel to natural gas is the pollution-reduction equivalent of removing as many as 325 cars 8 from the road. Natural Gas in Americas Clean Energy Portfolio America could realize substantial environmental, economic and national security benefits including near-term reductions in carbon emissions by using natural gas more effectively in four key ways: Increasing the utilization of existing natural gas power plants; Expanding the conversion of coal-fired generating facilities to natural gas; Using natural gas as a reliable complement to other alternative energy sources; and Increasing the use of natural gas as a vehicle fuel. 6 The Impact of a Federal Renewable Portfolio Standard, Wood Mackenzie, February 2007. 7 Alternative Fuels and Advanced Vehicles Data Center, U.S. Department of Energys Office of Renewable Energy and Energy Efficiency, last accessed May 28, 2010. 8 The Case for Natural Gas The Most Abundant, Clean And Cost-Efficient American Fuel, An Issue Brief, NGVAmerica, February 23, 2009.