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Find publications about alternative transportation, including alternative fuels, advanced vehicles, and regulated fleets.

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Title Author Date Category
Natural Gas Works for Cities 4/1/2013 Brochures & Fact Sheets

America's Natural Gas Alliance, Washington, DC

When it comes to improving and strengthening our communities, natural gas can play a big role. In this publication, you'll find examples of how natural gas is helping cities across the country save money and reduce emissions. Natural gas vehicles - buses, refuse and heavy-duty trucks, passenger vehicles and delivery vans - are increasingly being used in cities and towns from coast to coast to improve air quality and save money.

Transportation Energy Futures Series: Alternative Fuel Infrastructure Expansion: Costs, Resources, Production Capacity, and Retail Availability for Low-Carbon Scenarios. Melaina, M. W.; Heath, G.; Sandor, D.; Steward, D.; Vimmerstedt, L.; Warner, E.; Webster, K. W. 4/1/2013 Reports

National Renewable Energy Laboratory, Golden, Colorado

Achieving the Department of Energy target of an 80% reduction in greenhouse gas emissions by 2050 depends on transportation-related strategies combining technology innovation, market adoption, and changes in consumer behavior. This study examines expanding low-carbon transportation fuel infrastructure to achieve deep GHG emissions reductions, with an emphasis on fuel production facilities and retail components serving light-duty vehicles. Three distinct low-carbon fuel supply scenarios are examined: Portfolio: Successful deployment of a range of advanced vehicle and fuel technologies; Combustion: Market dominance by hybridized internal combustion engine vehicles fueled by advanced biofuels and natural gas; Electrification: Market dominance by electric drive vehicles in the LDV sector, including battery electric, plug-in hybrid, and fuel cell vehicles, that are fueled by low-carbon electricity and hydrogen. A range of possible low-carbon fuel demand outcomes are explored in terms of the scale and scope of infrastructure expansion requirements and evaluated based on fuel costs, energy resource utilization, fuel production infrastructure expansion, and retail infrastructure expansion for LDVs. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored transportation-related strategies for abating GHGs and reducing petroleum dependence.

Clean Cities Alternative Fuel Price Report, April, 2013 Babcock, S. 4/1/2013 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for April 2013 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between March 29, 2013 and April 12, 2013, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price (all amounts are per gallon) for regular gasoline has increased 30 cents from $3.29 to $3.59; diesel has increased 3 cents from $3.96 to $3.99; CNG price is unchanged, remaining $2.10; ethanol (E85) has increase 13 cents from $3.17 to $3.30; propane has increased 5 cents from $2.68 to $2.73; and biodiesel (B20) has increased 6 cents from $4.05 to $4.11.</p><p>According to Table 2, CNG is about $1.49 less than gasoline on an energy-equivalent basis, while E85 is about $1.07 more than gasoline on an energy-equivalent basis.

Transportation Energy Futures Series: Projected Biomass Utilization for Fuels and Power in a Mature Market Ruth, M.; Mai, T.; Newes, E.; Aden, A.; Warner, E.; Uriarte, C.; Inman, D.; Simpkins, T.; Argo, A. 3/1/2013 Reports

National Renewable Energy Laboratory, Golden, Colorado

The viability of biomass as transportation fuel depends upon the allocation of limited resources for fuel, power, and products. By focusing on mature markets, this report identifies how biomass is projected to be most economically used in the long term and the implications for greenhouse gas (GHG) emissions and petroleum use. In order to better understand competition for biomass between these markets and the potential for biofuel as a market-scale alternative to petroleum-based fuels, this report presents results of a micro-economic analysis conducted using the Biomass Allocation and Supply Equilibrium (BASE) modeling tool. The findings indicate that biofuels can outcompete biopower for feedstocks in mature markets if research and development targets are met. The BASE tool was developed for this project to analyze the impact of multiple biomass demand areas on mature energy markets. The model includes domestic supply curves for lignocellulosic biomass resources, corn for ethanol and butanol production, soybeans for biodiesel, and algae for diesel. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

Clean Cities: Cutting petroleum use in transportation since 1993 3/1/2013 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

This publication provides an overview of the U.S. Department of Energy's Clean Cities program, which builds partnerships to reduce petroleum use in transportation in communities across the country.

Clean Cities Alternative Fuel Price Report, January, 2013 Babcock, S. 2/1/2013 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for January 2013 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between January 10, 2013 and January 25, 2013, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price (all amounts are per gallon) for regular gasoline has decreased 53 cents from $3.82 to $3.29; diesel has decreased 17 cents from $4.13 to $3.96; CNG price has decreased 2 cents from $2.12 to $2.10; ethanol (E85) has decreased 30 cents from $3.47 to $3.17; propane has increased 12 cents from $2.56 to $2.68; and biodiesel (B20) has decreased 13 cents from $4.18 to $4.05.</p><p>According to Table 2, CNG is about $1.19 less than gasoline on an energy-equivalent basis, while E85 is about $1.19 more than gasoline on an energy-equivalent basis.

Clean Cities 2013 Vehicle Buyer's Guide 2/1/2013 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The expanding availability of alternative fuels and advanced vehicles makes it easier than ever to reduce petroleum use, cut emissions, and save on fuel costs. The Clean Cities 2013 Vehicle Buyer's Guide features a comprehensive list of model year 2013 vehicles that can run on ethanol, biodiesel, electricity, propane or natural gas.

Transitions to Alternative Vehicles and Fuels 1/1/2013 Books & Chapters

Committee on Transitions to Alternative Vehicles and Fuels; Board on Energy and Environmental Systems; Division on Engineering and Physical Sciences; National Research Council

For a century, almost all light-duty vehicles (LDVs) have been powered by internal combustion engines (ICEs) operating on petroleum fuels. Energy security concerns over petroleum imports and the effect of greenhouse-gas (GHG) emissions on global climate are driving interest in alternatives. This report assesses the potential for reducing petroleum consumption and GHG emissions by 80% across the U.S. LDV fleet by 2050, relative to 2005. It examines the current capability and estimated future performance and costs for each vehicle type and non-petroleum-based fuel technology as options that could significantly contribute to these goals. By analyzing scenarios that combine various fuel and vehicle pathways, the report also identifies barriers to implementation of these technologies and suggests policies to achieve the desired reductions. Several scenarios are promising, but strong, effective, and sustained but adaptive policies such as research and development (R&D), subsidies, energy taxes, or regulations will be necessary to overcome barriers such as cost and consumer choice.

Notes: This book is available for purchase from The National Academies Press.

Model Year 2013: Alternative Fuel and Advanced Technology Vehicles 12/13/2012 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The fact sheet details the model, vehicle type, emission class, transmission type/speeds, engine size, and fuel economy of a variety of flexible fuel vehicles, hybrid electric vehicles, all-electric, and extended range electric vehicles, as well as CNG vehicles.

Clean Cities 2011 Annual Metrics Report Johnson, C. 12/1/2012 Reports

National Renewable Energy Laboratory, Golden, Colorado

This annual report details the petroleum savings and vehicle emissions reductions achieved by the U.S. Department of Energy's Clean Cities program in 2011. The report also details other performance metrics, including the number of stakeholders in Clean Cities coalitions, outreach activities by coalitions and national laboratories, and alternative fuel vehicles deployed.

Clean Cities Alternative Fuel Price Report, October, 2012 Babcock, S. 11/1/2012 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for October 2012 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between September 28, 2012 and October 12, 2012, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price (all amounts are per gallon) for regular gasoline has increased 30 cents from $3.52 to $3.82; diesel has increased 38 cents from $$3.75 to $4.13; CNG price has increased 7 cents from $2.05 to $2.12; ethanol (E85) has increased 23 cents from $3.24 to $3.47; propane has dropped 8 cents from $2.64 to $2.56; and biodiesel (B20) has increased 35 cents from $3.83 to $4.18.</p><p>According to Table 2, CNG is about $1.70 less than gasoline on an energy-equivalent basis, while E85 is about $1.09 more than gasoline on an energy-equivalent basis.

Clean Cities 2010 Annual Metrics Report Johnson, C. 10/1/2012 Reports

National Renewable Energy Laboratory, Golden, Colorado

Each year, the U.S. Department of Energy (DOE) asks Clean Cities coordinators to submit an annual report of their activities and accomplishments for the previous calendar year. Data and information are submitted to an online database that is maintained as part of the Alternative Fuels and Advanced Vehicles Data Center (AFDC) at the National Renewable Energy Laboratory (NREL). Coordinators submit a range of data that characterizes the membership, funding, projects, and activities of their coalitions. They also submit data about sales of alternative fuels, deployment of alternative fuel vehicles (AFVs) and hybrid electric vehicles (HEVs), idle reduction initiatives, fuel economy activities, and programs to reduce vehicle miles traveled (VMT). NREL analyzes the data and translates them into gasoline use reduction impacts, which are summarized in this report.

Clean Cities Now Vol. 16, No. 2 9/1/2012 Newsletters

National Renewable Energy Laboratory, Golden, Colorado

Biannual newsletter for the U.S. Department of Energy's Clean Cities initiative. The newsletter includes feature stories on advanced vehicle deployment, idle reduction, and articles on Clean Cities coalition successes across the country.

Transit on the Cutting Edge of Clean Technology 9/1/2012 Reports

American Public Transportation Association, Washington, DC

This white paper reviews the substantial progress that transit agencies have made in investing in innovative clean technologies and fuels, such as electricity, hybrid vehicles, electric storage, biofuels, natural gas, and hydrogen fuel cells.

Experiences with Compressed Natural Gas in Colorado Vehicle Fleets; Case Study Analysis 8/1/2012 Reports

Colorado Energy Office, Denver, Colorado; Researched and assembled by the Antares Group, Inc.

This series of case studies is the product of in-person and telephone interviews with three Colorado fleet managers who use compressed natural gas (CNG) as a vehicle fuel and interviews with other CNG stakeholders. The fleets were selected using criteria that are intended to increase the usefulness of the overall product, including geographic diversity, length of CNG experience, diversity of vehicles, and ownership model. The case studies are based on a framework constructed with broad stakeholder input, designed to provide detailed information on fleet manager experiences with CNG vehicles and fueling infrastructure.</p><p>Featured fleets include the following: Republic Services (Republic), a private sector waste and environmental management firm with a CNG fleet based in the Denver metro area; Denver International Airport (DIA), an airport with more than 15 years of experience with CNG and proven success as a CNG hub; and City of Grand Junction, a Western Slope municipality with a public/private partnership to provide public CNG fueling.

EPA Announces Final Rulemaking for Clean Alternative Fuel Vehicle and Engine Conversions 8/1/2012 Brochures & Fact Sheets

Office of Transportation and Air Quality, Environmental Protection Agency, Washington, D.C.

The U.S. Environmental Protection Agency (EPA) is adopting changes to the regulations found in 40 CFR part 85 subpart F for clean alternative fuel conversion manufacturers. This action affects regulations applicable to manufacturers of light-duty vehicle and heavy-duty highway vehicle and engine clean alternative fuel conversion systems. The revisions will streamline the compliance process while maintaining environmentally protective controls.

Clean Cities Alternative Fuel Price Report, July, 2012 Babcock, S. 8/1/2012 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for July 2012 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between July 13, 2012 and July 27, 2012, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price (all amounts are per gallon) for regular gasoline has dropped 37 cents from $3.89 to $3.52; diesel has dropped 37 cents from $$4.12 to $3.75; CNG price has dropped 3 cents from $2.08 to $2.05; ethanol (E85) has dropped 23 cents from $3.47 to $3.24; propane has dropped 27 cents from $2.91 to $2.64; and biodiesel (B20) has dropped 35 cents from $4.18 to $3.83.</p><p>According to Table 2, CNG is about $1.47 less than gasoline on an energy-equivalent basis, while E85 is about $1.06 more than gasoline on an energy-equivalent basis.

Transportation Energy Data Book: Edition 31 Davis, S.C.; Diegel, S.W.; Boundy, R.G. 7/31/2012 Books & Chapters

Oak Ridge National Laboratory, Oak Ridge, Tennessee

The Transportation Energy Data Book (TEDB) is a compendium of data on transportation with an emphasis on energy. Designed for use as a desktop reference, the TEDB was first published in 1976 and has continued to Edition 31. The TEDB is produced by Oak Ridge National Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy.</p><p>Contents: Chapter 1, Petroleum; Chapter 2, Energy; Chapter 3, All Highway Vehicles and Characteristics; Chapter 4, Light Vehicles and Characteristics; Chapter 5, Heavy Vehicles and Characteristics; Chapter 6, Alternative Fuel and Advanced Technology Vehicles and Characteristics; Chapter 7, Fleet vehicles and Characteristics; Chapter 8, Household Vehicles and Characteristics; Chapter 9, Nonhighway Modes, including airplanes, ships and railroads; Chapter 10, Transportation and the Economy; Chapter 11, Greenhouse Gas Emissions; and Chapter 12, Criteria Air Pollutants.

Annual Energy Outlook 2012; with Projections to 2035 6/1/2012 Reports

U.S. Energy Information Administration

The projections in the U.S. Energy Information Administration's (EIA's) Annual Energy Outlook 2012 (AEO2012) focus on the factors that shape the U.S. energy system over the long term. Under the assumption that current laws and regulations remain unchanged throughout the projections, the AEO2012 Reference case provides the basis for examination and discussion of energy production, consumption, technology, and market trends and the direction they may take in the future. It also serves as a starting point for analysis of potential changes in energy policies. But AEO2012 is not limited to the Reference case. It also includes 29 alternative cases (see Appendix E, Table E1), which explore important areas of uncertainty for markets, technologies, and policies in the U.S. energy economy. Many of the implications of the alternative cases are discussed in the "Issues in focus" section of this report.</p><p>Key results highlighted in AEO2012 include continued modest growth in demand for energy over the next 25 years and increased domestic crude oil and natural gas production, largely driven by rising production from tight oil and shale resources. As a result, U.S. reliance on imported oil is reduced; domestic production of natural gas exceeds consumption, allowing for net exports; a growing share of U.S. electric power generation is met with natural gas and renewables; and energy-related carbon dioxide emissions remain below their 2005 level from 2010 to 2035, even in the absence of new Federal policies designed to mitigate greenhouse gas (GHG) emissions.

Examining the Impacts of Methane Leakage on Life-Cycle Greenhouse Gas Emissions of Shale and Conventional Natural Gas Burnham, A.; Clark, C. 6/1/2012 Journal Articles & Abstracts

Argonne National Laboratory, Argonne, IL

The development of large-scale shale gas production has been described as a game-changer for the U.S. energy market and has generated interest in expanding the usage of natural gas (NG) in sectors such as electricity generation and transportation. This development has been made possible by improvements in drilling technologies, specifically utilizing hydraulic fracturing in conjunction with horizontal drilling. However, the environmental implications of NG production and its use have been called into question. One of the major concerns is the amount methane (CH4) leakage from production activities and its impact on the life-cycle greenhouse gas (GHG) emissions of NG.

Notes: This article appears in the June 2012 issue of EM Magazine, a publication of the Air & Waste Management Association (A&WMA; www.awma.org). To obtain copies and reprints, please contact A&WMA directly at 1-412-232-3444.

Clean Cities Now Vol. 16, No.1 5/1/2012 Newsletters

National Renewable Energy Laboratory, Golden, Colorado

Biannual newsletter for the U.S. Department of Energy's Clean Cities initiative. The newsletter includes feature stories on advanced vehicle deployment, idle reduction, and articles on Clean Cities coalition successes across the country.

Clean Cities Alternative Fuel Price Report, April 2012 Babcock, S. 5/1/2012 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for April 2012 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between March 30, 2012 and April 13, 2012, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 52 cents per gallon from $3.37 per gallon to $3.89 per gallon; diesel has risen 26 cents per gallon from $3.86 to $4.12; CNG price has dropped 5 cents from $2.13 to $2.08; ethanol (E85) has risen 33 cents from $3.14 to $3.47 per gallon; propane has dropped 17 cents from $3.08 to $2.91; and biodiesel (B20) has risen 23 cents from $3.95 to $4.18 per gallon.</p><p>According to Table 2, CNG is about $1.81 less than gasoline on an energy-equivalent basis, while E85 is about $1.01 more than gasoline on an energy-equivalent basis.

Standard Compliance: Guidelines to Help State and Alternative Fuel Provider Fleets Meet Their Energy Policy Act Requirements, 10 CFR Part 490 (Book), Vehicle Technologies Program (VTP) 4/1/2012 Reports

National Renewable Energy Laboratory, Golden, Colorado

This guidebook addresses the primary requirements of the Alternative Fuel Transportation Program to help state and alternative fuel provider fleets comply with the Energy Policy Act via the Standard Compliance option. It also addresses the topics that covered fleets ask about most frequently.

Renewable Fuels and Lubricants (ReFUEL) Laboratory 3/1/2012 Brochures & Fact Sheets

National Renewable Energy Laboratory; Golden, Colorado

This fact sheet describes the Renewable Fuels and Lubricants (ReFUEL) Laboratory at the U.S. Department of Energy National Renewable Energy Laboratory (NREL) is a state-of-the-art research and testing facility for advanced fuels and vehicles. Research and development aims to improve vehicle efficiency and overcome barriers to the increased use of renewable diesel and other nonpetroleum-based fuels, such as biodiesel and synthetic diesel derived from biomass. The ReFUEL Laboratory features a chassis dynamometer for vehicle performance and emissions research, two engine dynamometer test cells for advanced fuels research, and precise emissions analysis equipment. As a complement to these capabilities, detailed studies of fuel properties, with a focus on ignition quality, are performed at NREL's Fuel Chemistry Laboratory.

Clean Cities 2012 Vehicle Buyer's Guide 3/1/2012 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The expanding availability of alternative fuels and advanced vehicles makes it easier than ever to reduce petroleum use, cut emissions, and save on fuel costs. The Clean Cities 2012 Vehicle Buyer's Guide features a comprehensive list of model year 2012 vehicles that can run on ethanol, biodiesel, electricity, propane or natural gas.

Clean Cities Alternative Fuel Price Report, January 2012 Babcock, S. 2/1/2012 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for January 2012 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between January 13, 2012 and January 27, 2012, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has dropped 9 cents per gallon from $3.46 per gallon to $3.37 per gallon; diesel has risen 5 cents per gallon from $3.81 to $3.86; CNG price has risen 4 cents from $2.09 to $2.13; ethanol (E85) has dropped 5 cents from $3.19 to $3.14 per gallon; propane has risen 2 cents from $3.06 to $3.08; and biodiesel (B20) has risen 4 cents from $3.91 to $3.95 per gallon.</p><p>According to Table 2, CNG is about $1.24 less than gasoline on an energy-equivalent basis, while E85 is about $1.07 more than gasoline on an energy-equivalent basis.

Life-Cycle Analysis of Shale Gas and Natural Gas Clark, C.E.; Han, J.; Burnham, A.; Dunn, J.B.; Wang, M. 12/1/2011 Reports

Argonne National Laboratory

The technologies and practices that have enabled the recent boom in shale gas production have also brought attention to the environmental impacts of its use. Using the current state of knowledge of the recovery, processing, and distribution of shale gas and conventional natural gas, we have estimated up-to-date, life-cycle greenhouse gas emissions. In addition, we have developed distribution functions for key parameters in each pathway to examine uncertainty and identify data gaps - such as methane emissions from shale gas well completions and conventional natural gas liquid unloadings - that need to be addressed further. Our base case results show that shale gas life-cycle emissions are 6% lower than those of conventional natural gas. However, the range in values for shale and conventional gas overlap, so there is a statistical uncertainty regarding whether shale gas emissions are indeed lower than conventional gas emissions. This life-cycle analysis provides insight into the critical stages in the natural gas industry where emissions occur and where opportunities exist to reduce the greenhouse gas footprint of natural gas.

Life-Cycle Greenhouse Gas Emissions of Shale Gas, Natural Gas, Coal, and Petroleum Burnham, A.; Han, J.; Clark, C.E.; Wang, M.; Dunn, J.B.; Palou-Rivera, I. 11/22/2011 Journal Articles & Abstracts

Argonne National Laboratory; Argonne, Illiinois

The technologies and practices that have enabled the recent boom in shale gas production have also brought attention to the environmental impacts of its use. It has been debated whether the fugitive methane emissions during natural gas production and transmission outweigh the lower carbon dioxide emissions during combustion when compared to coal and petroleum. Using the current state of knowledge of methane emissions from shale gas, conventional natural gas, coal, and petroleum, we estimated up-to-date life-cycle greenhouse gas emissions. In addition, we developed distribution functions for key parameters in each pathway to examine uncertainty and identify data gaps such as methane emissions from shale gas well completions and conventional natural gas liquid unloadings that need to be further addressed. Our base case results show that shale gas life-cycle emissions are 6% lower than conventional natural gas, 23% lower than gasoline, and 33% lower than coal. However, the range in values for shale and conventional gas overlap, so there is a statistical uncertainty whether shale gas emissions are indeed lower than conventional gas. Moreover, this life-cycle analysis, among other work in this area, provides insight on critical stages that the natural gas industry and government agencies can work together on to reduce the greenhouse gas footprint of natural gas.

Notes: This document is copyrighted by the American Chemical Society and only available by accessing it through Energy & Fuels.

Well-to-Wheels Analysis of Fast Pyrolysis Pathways with GREET Han, J.; Elgowainy, A.; Palou-Rivera, I.; Dunn, J.B.; Wang, M.Q. 11/1/2011 Reports

Argonne National Laboratory

The pyrolysis of biomass can help produce liquid transportation fuels with properties similar to those of petroleum gasoline and diesel fuel. Argonne National Laboratory conducted a life-cycle (i.e., well-to-wheels [WTW]) analysis of various pyrolysis pathways by expanding and employing the Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model. The WTW energy use and greenhouse gas (GHG) emissions from the pyrolysis pathways were compared with those from the baseline petroleum gasoline and diesel pathways. Various pyrolysis pathway scenarios with a wide variety of possible hydrogen sources, liquid fuel yields, and co-product application and treatment methods were considered. At one extreme, when hydrogen is produced from natural gas and when bio-char is used for process energy needs, the pyrolysis-based liquid fuel yield is high (32% of the dry mass of biomass input). The reductions in WTW fossil energy use and GHG emissions relative to those that occur when baseline petroleum fuels are used, however, is modest, at 50% and 51%, respectively, on a per unit of fuel energy basis. At the other extreme, when hydrogen is produced internally via reforming of pyrolysis oil and when bio-char is sequestered in soil applications, the pyrolysis-based liquid fuel yield is low (15% of the dry mass of biomass input), but the reductions in WTW fossil energy use and GHG emissions are large, at 79% and 96%, respectively, relative to those that occur when baseline petroleum fuels are used. The petroleum energy use in all scenarios was restricted to biomass collection and transportation activities, which resulted in a reduction in WTW petroleum energy use of 92-95% relative to that found when baseline petroleum fuels are used. Internal hydrogen production (i.e., via reforming of pyrolysis oil) significantly reduces fossil fuel use and GHG emissions because the hydrogen from fuel gas or pyrolysis oil (renewable sources) displaces that from fossil fuel na

Clean Cities Alternative Fuel Price Report, October 2011 Babcock, S. 11/1/2011 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for October 2011 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between September 30, 2011 and October 14, 2011, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has dropped 22 cents per gallon from $3.68 per gallon to $3.46 per gallon; CNG price has risen 2 cents from $2.07 to $2.09; ethanol (E85) has dropped 7 cents from $3.26 to $3.19 per gallon; propane has dropped 3 cents from $3.09 to $3.06; and biodiesel (B20) has dropped 11 cents from $4.02 to $3.91 per gallon.</p><p>According to Table 2, CNG is about $1.37 less than gasoline on an energy-equivalent basis, while E85 is about $1.05 more than gasoline on an energy-equivalent basis.

Clean Cities Now Vol. 15, No. 2 10/1/2011 Newsletters

National Renewable Energy Laboratory, Golden, Colorado

Clean Cities Now features news and articles about Clean Cities coalition activities in promoting the reduction in the use of petroleum transportation fuel. The October 2011 issue features stories about idle reduction equipment benefits, coordinator profiles, the 2011 Clean Cities Stakeholder Summit and other coalition news.

Clean Cities' Guide to Alternative Fuel Commercial Lawn Equipment 10/1/2011 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado 80401

Powering commercial lawn service equipment with alternative fuels is an effective way to reduce petroleum use. A single alternative fuel commercial lawnmower can annually use as much gasoline or diesel fuel as a commercial work truck. Alternative fuels can also reduce pollutant emissions compared with conventional fuels.

Model Year 2012 Alternative Fuel Vehicles and Advanced Technology Vehicles 10/1/2011 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The fact sheet details the model, vehicle type, emission class, transmission type/speeds, engine size, and fuel economy of a variety of flexible fuel vehicles, hybrid electric vehicles, all-electric, and extended range electric vehicles, as well as CNG vehicles.

Clean Cities Niche Market Overview: Refuse Haulers Shea, S. 9/1/2011 Reports

U.S. Department of Energy, Washington D.C.

Many niche market fleets, which operate specially designed vehicles that serve very specific functions, are ideal for the adoption of alternative fuels and advanced vehicle technologies. One prime example is the refuse hauler sector, whose 136,000 trucks average only 2.8 miles per gallon, using more than 1.2 billion gallons of fuel annually in the United States. This sector could substantially decrease its petroleum consumption through the use of alternative fuel or advanced technology vehicles. Before adopting these technologies, a refuse hauler fleet should consider both the technologies' benefits and the fleet's individual needs.

Clean Cities Alternative Fuel Price Report, July 2011 Babcock, S. 8/1/2011 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for July 2011 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between July 14, 2011 and July 29, 2011, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has dropped 1 cent per gallon from $3.69 per gallon to $3.68 per gallon; CNG price has risen 1 cent from $2.06 to $2.07; ethanol (E85) has risen 6 cents from $3.20 to $3.26 per gallon; propane has dropped 10 cents from $3.19 to $3.09; and biodiesel has dropped 3 cents from $4.05 to $4.02 per gallon. CNG is about $1.61 less than gasoline on an energy-equivalent basis, while E85 is about 92 cents more than gasoline on an energy-equivalent basis.

The Future of Natural Gas Multiple 6/1/2011 Reports

Massachusetts Institute of Technology, Cambridge, Massachusetts

Within this context, the MIT study of The Future of Natural Gas seeks to inform the discussion around natural gas by addressing a fundamental question: what is the role of natural gas in a carbon-constrained economy? In exploring this question, we seek to improve general understanding of natural gas, and examine a number of specific issues. How much natural gas is there in the world, how expensive is it to develop, and at what rate can it be produced?We start from a global perspective, and then look in detail at U.S. natural gas resources, paying particular attention to the extent and cost of shale gas resources, and whether these supplies can be developed and produced in anenvironmentally sound manner.

Transportation Energy Data Book: Edition 30 Davis, S.C.; Diegel, S.W.; Boundy, R.G. 6/1/2011 Books & Chapters

Oak Ridge National Laboratory, Oak Ridge, Tennessee

The Transportation Energy Data Book: Edition 30 is a statistical compendium of tables and graphs designed for desk-top reference of transportation energy use. Contents: Chapter 1, petroleum; Chapter 2, energy; Chapter 3, highway vehicles; Chapter 4, light-duty vehicles; Chapter 5, heavy-duty vehicles; Chapter 6 describes alternative fueled and advanced vehicles; Chapter 7, fleet vehicles; Chapter 8, household vehicle use; Chapter 9, nonhighway transportation including airplanes, ships and railroads; Chapter 10, transportation and the economy; Chapter 11, greenhouse gas emissons; and Chapter 12, criteria air pollutants.

Clean Cities Alternative Fuel Price Report, April 2011 Babcock, S. 5/1/2011 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for April 2011 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between April 1, 2011 and April 15, 2011, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 61 cents per gallon from $3.08 per gallon to $3.69 per gallon; CNG price has risen from $1.93 to $2.06; ethanol (E85) has risen 45 cents from 2.75 to $3.20 per gallon; and biodiesel has risen 55 cents from $3.50 to $4.05. CNG is about $1.63 less than gasoline on an energy-equivalent basis, while E85 is about 83 cents more than gasoline on an energy-equivalent basis.

Guide for Identifying and Converting High-Potential Petroleum Brownfield Sites to Alternative Fuel Stations Johnson, C.; Hettinger, D. 5/1/2011

National Renewable Energy Laboratory, Golden, Colorado

Former gasoline stations that are now classified as brownfields can be good sites to sell alternative fuels because they are in locations that are convenient to vehicles and they may be seeking a new source of income. However, their success as alternative fueling stations is highly dependent on location-specific criteria, how to prioritize them, and then applies that assessment framework to five of the most popular alternative fuels?electricity, natural gas, hydrogen, ethanol, and biodiesel. </p><p>The second part of this report delves into the criteria and tools used to assess an alternative fuel retail site at the local level. It does this through two case studies of converting former gasoline stations in the Seattle-Eugene area into electric charge stations. </p><p>The third part of this report addresses steps to be taken after the specific site has been selected. This includes choosing and installing the recharging equipment, steps to take in the permitting process and key players to include.

Advancing Renewable Energy 5/1/2011 Brochures & Fact Sheets

U.S. Department of Agriculture

This brochure provides an overview of USDA's energy related programs and how USDA collaboration efforts are making a measurable impact in the world of renewable energy.

Clean Cities Now Vol. 15, No. 1 4/1/2011 Newsletters

National Renewable Energy Laboratory, Golden, Colorado

Clean Cities Now features news and articles about Clean Cities coalition activities in promoting the reduction in the use of petroleum transportation fuel. The April 2011 issue features several stories about electric vehicles and hybrid electric vehicles.

2010 Vehicle Technologies Market Report Ward, J.; Davis, S.; Batten, B.; Diegel, S.; Duggal, V.; Duleep, K.; Smith, R.; Yeakel, S. 3/1/2011 Reports

U.S. Department of Energy, Washington, D.C.; Oak Ridge National Laboratory, Oak Ridge, Tennessee

What is the GREET Fleet Footprint Calculator 2/1/2011 Brochures & Fact Sheets

Argonne National Laboratory, Argonne, Illinois

The GREET Fleet Footprint Calculator was developed to use the GREET system to help fleets choose the alternative fuel vehicles that will best meet a variety of organizational transportation goals and legal requirements, including reducing petroleum use and greenhouse gas emissions.

Clean Cities Alternative Fuel Price Report, January 2011 Laughlin, M.D. 2/1/2011 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for January 2011 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between January 24, 2011 and February 7, 2011, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 30 cents per gallon from $2.78 per gallon to $3.08 per gallon; CNG price has remained the same at $1.93; and ethanol (E85) has risen 31 cents from $2.44 to $2.75 per gallon. CNG is about $1.15 less than gasoline on an energy-equivalent basis, while E85 is about 81 cents more per gallon than gasoline on an energy-equivalent basis.

Clean Cities 2011 Vehicle Buyer's Guide 1/1/2011 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

Guidebook to available Model Year 2011 alternative fuel and advanced vehicles including electric, plug-in electric and hybrid electric vehicles as well as vehicles powered by natural gas, propane, ethanol and biodiesel.

Clean Cities Alternative Fuel Price Report, October 2010 Laughlin, M.D. 11/1/2010 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for October 2010 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between October 4, 2010 and October 14, 2010, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 7 cents per gallon from $2.71 per gallon to $2.78 per gallon; CNG price has risen 2 cents from $1.91 to $1.93; and ethanol (E85) has risen 14 cents from $2.30 to $2.44 per gallon. CNG is about 85 cents less than gasoline on an energy-equivalent basis, while E85 is about 67 cents more per gallon than gasoline on an energy-equivalent basis.

Model Year 2011 Alternative Fuel Vehicles and Advanced Technology Vehicles 10/1/2010 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The fact sheet details the model, vehicle type, emission class, transmission type/speeds, engine size, and fuel economy of a variety of flexible fuel vehicles, hybrid electric vehicles, all-electric, and extended range electric vehicles, as well as one CNG vehicle.

Clean Cities' Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles 9/1/2010 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

This 40-page booklet describes multiple-stage construction of medium- and heavy-duty vehicles, chassis selection, alternative fuel power sources, hybrid propulsion systems and conversion companies, plus a 14-page catalog of medium- and heavy-duty vehicles that operate on alternative fuel or advanced technology.

Compressed Natural Gas (CNG) Transit Bus Experience Survey Adams, R.; Horne, D. 9/1/2010 Reports

Marathon Technical Services, Heidelberg, Ontario, Canada; Clean Vehicle Education Foundation, Acworth, Georgia

The U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) commissioned this survey to collect and analyze experiential data from U.S. transit agencies with varying degrees of compressed natural gas (CNG) bus and station experience. This information helps DOE and NREL determine areas of CNG transit bus success and priority areas for which further technical or other assistance might be required to enable success.This survey was intended to focus on the problems, mistakes, and lessons learned the hard way. By focusing on and reporting the negative experiences, it is hoped that others can avoid these pitfalls and learn from the experience of the pioneers in the industry.

Clean Cities Alternative Fuel Price Report, July 2010 Laughlin, M.D. 9/1/2010 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for July 2010 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between July 12, 2010 and July 23, 2010, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has fallen 13 cents per gallon from $2.84 per gallon to $2.71 per gallon; CNG price has risen 1 cents from $1.90 to $1.91; and ethanol (E85) has fallen 12 cents from $2.42 to $2.30 per gallon. CNG is about 80 cents less than gasoline on an energy-equivalent basis, while E85 is about 54 cents more per gallon than gasoline on an energy-equivalent basis.

Clean Cities Now Vol. 14, No. 2 9/1/2010 Newsletters

National Renewable Energy Laboratory, Golden, Colorado

Clean Cities Now, a semi-annual publication, is a roundup of events and news about the Clean Cities Coalitions including the Plug-In Vehicle and Infrastructure Workshop (July 2010), propane conversions, and stories about successful applications of alternative fuels.

Identification and Review of State/Federal Legislative and Regulatory Changes Required for the Introduction of New Transportation Fuels 8/4/2010 Reports

Sierra Research Inc., Sacramento, California

Sierra Research has, at the request of the American Petroleum Institute, conducted an independent review of existing federal, state and other statutes, regulations, and requirements that must be changed and other significant implementation hurdles that must be overcome prior to the introduction of E15 and other new transportation fuels into commerce.

Natural Gas Vehicles: Status, Barriers, and Opportunities Rood-Werpy, M; Santini, D.; Burnham, A.; Mintz, M. 8/1/2010 Reports

Argonne National Laboratory, Argonne, Illinois; Argonne National Laboratory, Argonne, Illinois; Argonne National Laboratory, Argonne, Illinois; Argonne National Laboratory, Argonne, Illinois

In the United States, recent shale gas discoveries have generated renewed interest in using natural gas as a vehicular fuel, primarily in fleet applications, while outside the United States, natural gas vehicle use has expanded significantly in the past decade. In this report for the U.S. Department of Energy's Clean Cities Program we have examined the state ofnatural gas vehicle technology, current market status, energy and environmentalbenefits, implications regarding advancements in European natural gas vehicletechnologies, research and development efforts, and current market barriers andopportunities for greater market penetration. The authors contend that commercial intracity trucks are a prime area for advancement of this fuel. Therefore, we examined an aggressive future market penetration of natural gas heavy-duty vehicles that could be seen as a long-term goal.

Business Case for Compressed Natural Gas in Municipal Fleets Johnson, C. 6/1/2010 Reports

National Renewable Energy Laboratory, Golden, Colorado

Compressed natural gas (CNG) vehicle projects can be highly profitable, or they can lose money, depending on numerous aspects of the fleet and station. To assist fleets and businesses in evaluating the profitability of potential CNG projects, the National Renewable Energy Laboratory (NREL) built the CNG Vehicle and Infrastructure Cash-Flow Evaluation (VICE) model. The VICE model demonstrates the relationship between project profitability and fleet operating parameters. This report describes how NREL used the VICE model to establish guidance for fleets making decisions about using CNG.

Clean Cities Alternative Fuel Price Report, April 2010 Laughlin, M.D. 6/1/2010 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for April 2010 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between April 2 and April 12, 2010, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 19 cents per gallon from $2.65 per gallon to $2.84 per gallon; CNG price has risen 5 cents from $1.85 to $1.90; and ethanol (E85) has risen 4 cents from $2.38 to $2.42 per gallon. CNG is about 94 cents less than gasoline on an energy-equivalent basis, while E85 is about 58 cents more per gallon than gasoline on an energy-equivalent basis.

What is the Alternative Fuels and Advanced Vehicles Data Center? (Spanish version) 6/1/2010 Brochures & Fact Sheets

Clean Cities, National Renewable Energy Laboratory, Golden, Colorado

The Alternative Fuels and Advanced Vehicles Data Center was created in 1991 and has evolved into an information center about alternative fuels and advanced vehicles for Clean Cities coalitions, private and public fleets, and consumers.

Clean Cities Vehicle and Infrastructure Cash-flow Evaluation (VICE) Model Johnson, C. 6/1/2010 Reports

National Renewable Energy Laboratory, Golden, Colorado

The Vehicle and Infrastructure Cash-Flow Evaluation (VICE) model allows fleet managers to assess the financial soundness of converting their fleets to run on compressed natural gas (CNG).

Well-to-Wheels Analysis of Landfill Gas-Based Pathways and Their Addition to the GREET Model Mintz, M.; Han, J.; Wang, M.; Saricks, C. 5/1/2010 Reports

Center for Transportation Research, Energy Systems Division, Argonne National Laboratory, Argonne, Illinois

This report discusses the size and scope of biomethane resources from landfills and the pathways by which those resources can be turned into and utilized as vehicle fuel. It includes characterizations of the LFG stream and the processes used to convert low-Btu LFG into high-Btu renewable natural gas (RNG); documents the conversion efficiencies and losses of those processes, the choice of processes modeled in GREET, and other assumptions used to construct GREET pathways; and presents GREET results by pathway stage. GREET estimates of well-topump (WTP), pump-to-wheel (PTW), and WTW energy, fossil fuel, and GHG emissions for each LFG-based pathway are then summarized and compared with similar estimates for fossil natural gas and petroleum pathways.

What is the Alternative Fuels and Advanced Vehicles Data Center? 4/1/2010 Brochures & Fact Sheets

Clean Cities, National Renewable Energy Laboratory, Golden, Colorado

The Alternative Fuels and Advanced Vehicles Data Center was created in 1991 and has evolved into an information center about alternative fuels and advanced vehicles for Clean Cities coalitions, private and public fleets, and consumers.

Clean Cities Alternative Fuel Price Report, January 2010 Laughlin, M.D. 4/1/2010 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for January 2010 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between Jan. 19 and Jan. 29, 2010, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 1 cent per gallon from $2.64 per gallon to $2.65 per gallon; CNG price has dropped 1 cent from $1.86 to $1.85; and ethanol (E85) has risen 11 cents from $2.27 to $2.38 per gallon. CNG is about 80 cents less than gasoline on an energy-equivalent basis, while E85 is about 71 cents more per gallon than gasoline on an energy-equivalent basis.

Natural Gas Basics 4/1/2010 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

Natural gas is a domestically available fuel tnat is a good choice for high-mileage fleets such as buses and taxis. Natural gas vehicles meet the same safety standards as gasoline and diesel vehicles. Compared with gasoline and diesel vehicles, natural gas vehicles can produce significantly lower carbon monoxide, nitrogen oxide, nonmethane hydrocarbon, particulate matter, and other toxic emissions, as well as greenhouse gas emissions.

Transportation's Role in Reducing U.S. Greenhouse Gas Emissions 4/1/2010 Reports

U.S. Department of Transportation, Center for Climate Change and Envrionmental Forecasting, Washington, DC

This U.S. Department of Transportation report is submitted in response to the requirements of Section 1101(c) of the Energy Independence and Security Act of 2007. It is intended to help inform the debate on surface transportation reauthorization and climate change legislation.</p><p>The report examines greenhouse gas (GHG) emission levels and trends from the transportation sector and analyzes the full range of strategies available to reduce these emissions. These strategies include: introducing low-carbon fuels, increasing vehicle fuel economy, improving transportation system efficiency, and reducing carbon-intensive travel activity. While the report does not provide recommendations, it does analyze five categories of policy options for implementing the strategies: an economy-wide price signal, efficiency standards, market incentives, transportation planning and funding programs and research and development.

Natural Gas Basics - Spanish version 3/1/2010 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

Spanish translation of Natural Gas Basics. Natural gas is a domestically available fuel tnat is a good choice for high-mileage fleets such as buses and taxis. Natural gas vehicles meet the same safety standards as gasoline and diesel vehicles. Compared with gasoline and diesel vehicles, natural gas vehicles can produce significantly lower carbon monoxide, nitrogen oxide, nonmethane hydrocarbon, particulate matter, and other toxic emissions, as well as greenhouse gas emissions.

Clean Cities Now Vol. 14, No. 1 3/1/2010 Newsletters

National Renewable Energy Laboratory, Golden, Colorado

Clean Cities NOW includes feature articles on locating fuel for alternative fuel fleets, the GREET fleet calculator, natural gas repowering for heavy duty fleets, and coalition news.

Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles 3/1/2010 Reports

Committee to Assess Fuel Economy Technologies for Medium- and Heavy-Duty Vehicles, Transportation Research Board, Washington, D.C.

Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles, such as tractor-trailers, transit buses, and work trucks. The book also recommends approaches that federal agencies could use to regulate these vehicles' fuel consumption. Currently there are no fuel consumption standards for such vehicles, which account for about 26 percent of the transportation fuel used in the U.S.</p><p>The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. For example, using advanced diesel engines in tractor-trailers could lower their fuel consumption by up to 20 percent by 2020, and improved aerodynamics could yield an 11 percent reduction. Hybrid powertrains could lower the fuel consumption of vehicles that stop frequently, such as garbage trucks and transit buses, by as much 35 percent in the same time frame.

EPA Lifecycle Analysis of Greenhouse Gas Emissions from Renewable Fuels 2/1/2010 Brochures & Fact Sheets

Office of Transportation and Air Quality, Environmental Protection Agency, Washington, D.C.

As part of revisions to the National Renewable Fuel Standard program (commonly known as the RFS program) as mandated in the Energy Independence and Security Act of 2007 (EISA), EPA has analyzed lifecycle greenhouse gas (GHG) emissions from increased renewable fuels use. EISA established eligibility requirements for renewable fuels, including the first U.S. mandatory lifecycle GHG reduction thresholds, which determine compliance with four renewable fuel categories. The regulatory purpose of EPA's lifecycle GHG emissions analysis is, therefore, to determine whether renewable fuels produced under varying conditions meet the GHG thresholds for the different categories of renewable fuel. Determining compliance with the thresholds requires a comprehensive evaluation of renewable fuels, as well as of gasoline and diesel, on the basis of their lifecycle emissions.

The Contribution of Natural Gas Vehicles to Sustainable Transport 2010 Nijboer, M. 1/1/2010 Reports

International Energy Agency, Paris, France

The number of natural gas vehicles and fuel stations has grown very strongly in the past decade and continues to do so, although it is still a niche market from the perspective of transport, representing less than 1% of the world road fuel consumption. Natural gas can play a significant role in cutting vehicle carbon dioxide emissions but over the long term there will need to be a commitment to transition to very low CO2 gas sources. Depending on the context, NGVs can have strong benefits in different countries by improving air quality, reducing noise in urban areas; diverting oil from domestic consumption to export; and improving energy security.

Notes: Document available free of charge from Web

Clean Cities 2010 Vehicle Buyer's Guide 12/1/2009 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

This 32-page booklet offers information about available 2010 alternative fuel vehicles including natural gas, propane, hybrid, ethanol and biodiesel vehicles.

An Action Plan for Cars: The Policies Needed to Reduce U.S. Petroleum Consumption and Greenhouse Gas Emissions Heywood, J.; Baptista, P.; Berry, I.; Bhatt, K.; Cheah, L.; De Sisternes, F.; Karplus, V.; Keith, D.; Khusid, M.; MacKenzie, D.; McAulay, J. 12/1/2009 Reports

Massachusetts Institute of Technology, Boston, Massachusetts

Reducing petroleum consumption and GHG emissions from cars and light?]duty trucks in the United States over the next several decades requires that we implement a clear and coordinated set of policies now. This report describes a portfolio of policies which, in the view of the authors, is needed to put personal vehicle transportation on the road to sustainability in the longer term. To incentivize adoption of more fuel efficient vehicles, we propose coupling existing near?]term fuel economy standards with a feebate incentive program and gradual increases in fuel taxes. We further propose driver education initiatives that would give vehicle owners information on how to maximize fuel savings in their purchase and driving decisions. Finally, we underscore the need for a long?]term strategy for fuels that evaluates fuels?]related programs based on their contribution to reducing life?]cycle petroleum consumption and greenhouse gas (GHG) emissions. Together, these policies offer a robust plan of action that will focus and streamline current efforts to achieve these two important national goals. Perhaps most importantly, this plan lays a much?]needed foundation for a comprehensive, adaptable long?]term policy effort. A more detailed summary of the recommended set of policy measures can be found in Section 2.

Model Year 2010 Alternative Fuel Vehicles and Advanced Technology Vehicles 10/1/2009 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The fact sheet details the model, vehicle type, emission class, transmission type/speeds, engine size, and fuel economy of a variety of flexible fuel vehicles, hybrid electric vehicles, as well as one CNG vehicle and one hydrogen fuel cell vehicle for Model Year 2010.

Clean Cities Alternative Fuel Price Report, October 2009 Laughlin, M.D. 10/1/2009 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for October 2009 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between October 16 and October 26, 2009, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 20 cents per gallon from $2.44 per gallon to $2.64 per gallon; CNG has risen 13 cents from $1.73 to $1.86; and ethanol (E85) has risen 14 cents from $2.13 to $2.27 per gallon. CNG is about 78 cents less than gasoline on an energy-equivalent basis, while E85 is about 57 cents more per gallon than gasoline on an energy-equivalent basis.

Analysis of Alternative Fuels & Vehicles for Taxicab Fleets 7/31/2009 Reports

Taxicab, Limousine & Paratransit Association,

Since 2007, New York City, San Francisco, Boston and Seattle have issued local mandates requiring all taxicab fleets to achieve certain city driving mileage per gallon requirements in the near future. The requirements in New York City and Boston were withdrawn by the cities after federal judgesissued injunctions, barring the cities from enforcing the rules. The principal reason for the judicial finding was that the plaintiffs were likely to prevail on their argument that when Congress enacted corporate average fuel economy (?CAFE?) standards in the Energy Policy and Conservation Act of 1975 (?EPCA?), it had pre-empted state or municipal regulations ?related to fuel economy standards or average fuel economy standards for automobiles covered by an average fuel economy standard? under the EPCA. It appears the other city mandates, which are based on fuel economy standards are also preempted by federal law. </p><p>While some taxicab companies have had success with the currently available alternative fuel vehicles, taxicab fleets have documented numerous serious problems. Part of the reason for the different reports from taxicab companies is the different operating styles in the industry. Where thetaxicab driver owns the alternative fuel vehicle or a taxicab fleet restricts access to the alternative fuel vehicle to selected drivers the results are far better than for the industry norm of the fleet owning the vehicle and providing the vehicle to any qualified taxicab driver on any given day.

Clean Cities Alternative Fuel Price Report, July 2009 Laughlin, M.D. 7/1/2009 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for July 2009 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between July 20 and July 31, 2009, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 42 cents per gallon from $2.02 per gallon to $2.44 per gallon; CNG has risen 9 cents from $1.64 to $1.73; and ethanol (E85) has risen 25 cents from $1.88 to $2.13 per gallon. CNG is about 71 cents less than gasoline on an energy-equivalent basis, while E85 is about 31 cents less per gallon than gasoline.

Clean Cities Alternative Fuel Price Report, April 2009 Laughlin, M.D. 5/1/2009 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for April 2009 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between April 1 and April 15, 2009, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 16 cents per gallon from $1.86 per gallon to $2.02 per gallon; CNG has risen one cent from $1.63 to $1.64; and ethanol (E85) has risen 7 cents from $1.81 to $1.88 per gallon. CNG is about 38 cents less than gasoline on an energy-equivalent basis, while E85 is about 63 cents more per gallon than gasoline on an energy-equivalent basis.

Advancing New Vehicle Technologies and Fuels 5/1/2009 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The Vehicle Technologies Program under the U.S. Department of Energy is actively developing and accelerating the deployment of clean and efficient vehicle technologies, as well as renewable fuels. The Vehicle Technologies program works with industry, universities, and state and local governments to strengthen the economy, create jobs, and reduce the U.S. demand for petroleum.

Mobile Alternative Fueling Station Locator 4/1/2009 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

Consumers and fleets can now access DOE's Alternative Fueling Station Locator using mobile devices including cell phones, BlackBerrys, or other personal handheld devices.

Clean Cities Alternative Fuel Price Report, January 2009 Laughlin, M.D. 2/1/2009 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for January 2009 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between January 12 and January 30, 2009, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has dropped $1.18 from $3.04 per gallon to $1.86 per gallon; CNG has dropped 37 cents from $2.01 to $1.63; and ethanol (E85) has dropped $1.01 from $2.82 to $1.81 per gallon. CNG is about 23 cents less than gasoline on an energy-equivalent basis, while E85 is about 5 cents less per gallon than gasoline.

Natural Gas Vehicle Incentive Program 1/15/2009 Reports

EMISSTAR LLC, Austin, Texas

Because of energy security issues, cost savings and environmental benefits, communities across the Northeast and Mid-Atlantic regions have expressed significant interest in the deployment of new heavy-duty vehicles powered by natural gas. Emisstar LLC created this incentive program based on prior diesel emissions reduction program research and development work performed for the New York Metropolitan Transportation Council (NYMTC). The authors recommend that emissions reductions achieved provide the basis for amount of funding received. Since the region struggles particularly with particulate matter (PM), the report recommends that grant funding is based on PM reduction cost effectiveness.

CNG Fuel System Inspector Study Guide Horne, D. 1/1/2009 Reports

Clean Vehicle Education Foundation, Acworth, Georgia

The CSA test contains approximately sixty multiple choice questions. There may be additional test questions included that are for evaluation purposes only and will not be part of the final scoring. The questions are based on expert opinions from a cross section of the CNG industry after consideration of the skills and knowledge that a minimally qualified applicant should have. They are taken in proportion to their importance from a carefully constructed set of objectives or tasks that inspectors would be expected to perform.</p><p>In preparation for taking the exam, you should first evaluate yourself against these objectives. Honestly consider if you are confident that you know each specific task listed in the following Task List. Note the percentage of questions you can expect in each category and check Yes (Y) or No (N) as you grade yourself. This will form the basis for any additional study you need prior to taking the test.

Clean Cities 2009 Vehicle Buyer's Guide 11/1/2008 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

This 32-page booklet offers information about available 2009 alternative fuel vehicles including natural gas, propane, electric, hybrid, ethanol and biodiesel vehicles.

Model Year 2009 Alternative Fuel Vehicles and Advanced Technology Vehicles 10/1/2008 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The fact sheet details the model, vehicle type, emission class, transmission type/speeds, engine size, and fuel economy of a variety of flexible fuel vehicles, hybrid electric vehicles, as well as one CNG vehicle and one hydrogen fuel cell vehicle for Model Year 2009.

Clean Cities Alternative Fuel Price Report, October 2008 Laughlin, M.D. 10/1/2008 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for October 2008 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between October 2 and October 16, 2008, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has dropped 87 cents from $3.91 per gallon to $3.04 per gallon; CNG has dropped 33 cents from $2.34 to $2.01; and ethanol (E85) has dropped 45 cents from $3.27 to $2.82 per gallon.

Clean Cities Alternative Fuel Price Report, July 2008 Laughlin, M.D. 7/1/2008 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for July 2008 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between July 21 and July 31, 2008, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 48 cents from $2.99 per gallon to $3.91 per gallon; CNG has risen 30 cents from $2.04 to $2.34; and ethanol (E85) has risen 40 cents from $2.87 to $3.27 per gallon.

SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report--Appendices Chandler, K.; Eudy, L. 6/1/2008 Reports

Battelle, Columbus, Ohio; National Renewable Energy Laboratory, Golden, Colorado

These appendices contain data analysis of information gathered during the evaluation of SunLine Transit Agency's one prototype fuel cell bus, one prototype hydrogen hybrid internal combustion engine (HHICE) bus, and five new CNG baseline buses operating from the same SunLine bus depot. These appendices are designed to provide the full background for the evaluation and will be updated as new information is collected. During the data collection period (Jan 2006 - Mar 2008), SunLine operated the fuel cell bus nearly 51,000 miles in service with an overall fuel economy of 7.19 miles per kg. For comparison, SunLine's CNG buses have an average fuel economy of 3.02 miles per gasoline gallon equivalent. During the same timeframe, the HHICE bus accumulated more than 43,000 miles with an average fuel economy of 4.34 miles per kg.

Federal Tax Incentives Encourage Alternative Fuel Use 5/1/2008 Brochures & Fact Sheets

National Renewable Energy Laboratory, Golden, Colorado

The U.S. government provides several tax incentives for purchasing alternative fuel, hybrid electric, and fuel cell vehicles; installing alternative fueling infrastructure; and producing, selling, or using alternative fuels. The IRS has defined alternative fuels as liquefied petroleum gas (LPG); compressed natural gas (CNG); liquefied natural gas (LNG); liquefied hydrogen; liquid fuel derived from coal through the Fischer-Tropsch process; liquid hydrocarbons derived from biomass including ethanol, biodiesel, and renewable diesel; and P-series fuels. Current federal tax incentives are outlined in this fact sheet.

Options for Alternative Fuels and Advanced Vehicles in Greensburg, Kansas Harrow, G. 5/1/2008 Reports

National Renewable Energy Laboratory, Golden, Colorado

After a devastating tornado that destroyed the town of Greensburg, Kansas in May 2007, plans were developed to rebuild the town as a sustainable community. This report focuses on outlining key success factors of infrastructure, alternative vehicles, and alternative and renewable fuels as part of an integrated energy strategy.

Clean Cities Alternative Fuel Price Report, April 2008 Laughlin, M.D. 4/1/2008 Reports

New West Technologies, LLC, Landover, Maryland

The Clean Cities Alternative Fuel Price Report for April 2008 is a quarterly report on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between April 1 and April 11, 2008, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 reports that the nationwide average price for regular gasoline has risen 44 cents from $2.99 per gallon to $3.43 per gallon; CNG has risen 11 cents from $1.93 to $2.04; and ethanol (E85) has risen 36 cents from $2.51 to $2.87 per gallon.

Frequently Asked Questions about Converting Vehicles to Operate on Natural Gas 4/1/2008 Brochures & Fact Sheets

Natural Gas Vehicles for America, Washington, D.C.

Many people are investigating options to retrofit or convert their car or pick-up truck to run solely on natural gas or to run as a bi-fuel vehicle on either gasoline or natural gas. This document answers basic questions regarding the conversion of light-duty vehicles including: conversion system availability; installation, service and warranty issues; costs; and available tax credits.

Securing a Clean Energy Future-Greener Fuels, Greener Vehicles: A State Resource Guide 2/1/2008 Reports

National Governors Association, Washington, D.C.

The U.S. transportation sector is currently 97% dependent on oil. This heavy reliance on mostly imported oil leaves the U.S. vulnerable to supply interruptions, price fluctuations, economic instability, and consumer hardships. Yet there are core challenges to address before viable alternatives become available. These challenges include lack of alternative fuels in the marketplace; limited fuel distribution systems to get alternative fuels to consumers; and inadequate supply of alternative vehicles produced. The National Governors Association is suggesting that state governors can take four policy actions to meet the challenges: provide financial incentives through tax credits, deductions, grants and other financial means; pass rules and mandates specifying that state fuel distributors sell a certain quantity of alternative fuels; use their state's purchaing power to boost the adoption of alternative fuels or vehicles; and invest in research and demonstration efforts to speed new technologies to the marketplace.

Clean Cities Alternative Fuel Price Report - January 2008 Laughlin, M.D. 1/1/2008 Reports

New West Technologies, LLC, Landover, Maryland

The January 2008 Clean Cities Alternative Fuel Price Report is a quarterly report keeping you up to date on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue describes prices that were gathered from Clean Cities coordinators and stakeholders between Jan. 21 and Jan. 31, 2008, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 illustrates that the nationwide average price for regular gasoline has risen 23 cents to $2.99 per gallon; CNG has risen 16 cents to $1.93; and ethanol (E85) has risen 11 cents to $2.51 per gallon.

Renewable Energy and Energy Efficiency: Economic Drivers for the 21st Century Bezdek, R. 11/1/2007 Reports

Management Information Services, Inc.,

Renewable energy and energy efficiency technologies (RE&EE)are driving significant economic growth in the U.S. In 2006, these industries generated 8.5 million new jobs, nearly $970 billion in revenue, more than $100 billion in industry profits, and more than $150 billion in increased federal, state, and local government tax revenues. This study is a comprehensive study of RE and EE industries including a rigorous definition of these industries; an estimate of the size and composition of these industries, including technology, sales, tax revenue, jobs, occupations, and skills; and a forecast of the growth of these industries to 2030 under three proposed scenarios.

Model Year 2008: Alternative Fuel Vehicles and Advanced Technology Vehicles 10/1/2007 Brochures & Fact Sheets

Alternative Fuels Data Center. National Renewable Energy Laboratory

This document provides facts and figures for all model year 2008 alternative fuel vehicles and advanced technology vehicles (including hybrid electric cars) available to fleet buyers and the general public.

Clean Cities Alternative Fuel Price Report - October 2007 Laughlin, M.D. 10/1/2007 Reports

New West Technologies, LLC, Landover, Maryland

The October 2007 Clean Cities Alternative Fuel Price Report is a quarterly report keeping you up to date on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue discusses prices that were gathered from Clean Cities coordinators and stakeholders between Oct. 2 and Oct 20, 2007, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 illustrates that the nationwide average price for regular gasoline has dropped 27 cents to $2.76 per gallon; CNG has dropped 32 cents to $1.77; and ethanol (E85) has dropped 23 cents to $2.40 per gallon.

California State Alternative Fuels Plan 10/1/2007 Reports

Transportation Committee, California Energy Commission, Sacramento, California; California Air Resources Board, Sacramento, California

The California State Alternative Fuels Plan presents strategies and actions California must take to increase the use of alternative non-petroleum fuels in a manner that minimizes costs to the state and maximizes the economic benefits of in-state production. The plan assessed various alternative fuels and developed fuel portfolios to meet California's goals to reduce petroleum consumption, increase alternative fuels use, reduce greenhouse gas emissions and increase in-state production of biofuels, without causing a significant degradation of public health and environmental quality. The key circumstances and conditions necessary to achieve the plan outcomes are presented for each fuel based on plan assumptions and analysis. The plan describes a 2050 Vision that extends the plan outcomes beyond the milestone years of 2012, 2017, and 2022 and lays a foundation for building a multi-fuel transportation energy future for California.

Clean Cities Alternative Fuel Price Report, July 2007 Laughlin, M.D. 7/1/2007 Reports

New West Technologies, LLC, Landover, Maryland

<p>The July 2007 Clean Cities Alternative Fuel Price Report is a quarterly report keeping you up to date on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue discusses prices that were gathered from Clean Cities coordinators and stakeholders between July 3, 2007 and July 13, 2007, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 illustrates that all fuel prices except propane and biodiesel have risen but the price increases are well below the increase in the price of regular gasoline. CNG is almost a dollar less than gasoline on an energy-equivalent basis.

Clean Cities Alternative Fuel Price Report, March 2007 Laughlin, M.D. 3/1/2007 Reports

New West Technologies, LLC, Landover, Maryland

<p>The March 2007 Clean Cities Alternative Fuel Price Report is a quarterly report keeping you up to date on the prices of alternative fuels in the U.S. and their relation to gasoline and diesel prices. This issue discusses prices that were gathered from Clean Cities coordinators and stakeholders between February 21, 2007 and March 2, 2007, and then averaged in order to determine regional price trends by fuel and variability in fuel price within regions and among regions. The prices collected for this report represent retail, at-the-pump sales prices for each fuel, including Federal and state motor fuel taxes.</p><p>Table 1 illustrates that alternative fuel prices relative to conventional fuels vary, with some (propane and biodiesel) higher and some (E85 and CNG) lower. CNG is about 36 cents less than gasoline on an energy-equivalent basis, while E85 is about 20 cents less per gallon than gasoline.

CNG Cylinder Inspector Certification 1/1/2007

CSA America Inc.

This page lists the qualifications for a certified cylinder inspector and training centers that offer CSA certification in CNG cylinder inspection.

Notes: The CNG Cylinder Inspector Certification page can be viewed at http://www.csa-america.org/advisory_services/cng_certification/.

New York City Transit (NYCT) Hybrid (125 Order) and CNG Transit Buses: Final Evaluation Results Barnitt, R., Chandler, K. 11/1/2006 Reports

National Renewable Energy Laboratory, Golden, Colorado; Battelle, Columbus, Ohio.

This report is one of a series of evaluations by the U.S. Department of Energy (DOE)through the National Renewable Energy Laboratory (NREL), that track and evaluate new propulsion systems in transit buses and trucks using established and documented evaluation protocol. DOE/NREL evaluated the original 10 prototype diesel-hybrid buses from Orion and BAE Systems (model Orion VI buses) operated by New York City Transit (NYCT). That evaluation was reported in July 2002 and provided results from the prototype buses from 1998 through 2001. This report focuses on 10 new compressed natural gas (CNG) and next generation diesel hybrid electric bus propulsion systems in NYCT's transit buses.

US10 Capable Prototype Volvo MG11 Natural Gas Engine Development: Final Report Tai, C.; Reppert, T.; Chiu, J.; Christensen, L.; Knoll, K.; Stewart, J. 10/1/2006 Reports

Mack Trucks, Inc., Hagerstown, Maryland; Mack Trucks, Inc., Hagerstown, Maryland; Southwest Research Institute, San Antonio, Texas; Sturman Industries, Woodland Park, Colorado; Sturman Industries, Woodland Park, Colorado; Sturman Industries, Woodland Park, Colorado

This project was designed to develop a low emissions natural gas engine. The emission targets for this project were 0.27 g/kW-hr (0.2 g/bhp-hr) of NOx and 0.013 g/kW-hr (0.01 g/bhp-hr) of particulate matter. To meet the objective, a chemically correct (stoichiometric) combustion, natural gas engine with exhaust gas recirculation (EGR) and a three-way catalyst was development. In addition to low emissions, diesel-like efficiencies were targeted trough the use of a Sturman camless Hydraulic Actuated Valve (HVA) system.

Development of a Cummins Westport SI-EGR Natural Gas Engine at 0.2 g/bhp-hr Kamel, M. 10/1/2006 Reports

Cummins Westport, Vancouver, British Columbia, Canada

This report outlines a program initiated to develop and demonstrate advanced technologies and methods for controlling exhaust emissions in a medium-duty natural gas engine to meet 2010 Federal emission standards. The goals specifically were to develop a natural gas engine capable of emission standards (g/bhp*h) of 0.2 NOx, 0.14 nmHC, 0.01 PM and 15.5 CO with engine ratings of 320 h.p. and 1000 lbs.*ft.