Clean Cities 2014 Annual Metrics Report
12/22/2015
Each year, the U.S. Department of Energy asks its Clean Cities program coordinators to submit annual reports of their activities and accomplishments for the previous calendar year. Data and information are submitted via an online database that is maintained as part of the Alternative Fuels Data Center (AFDC) at the National Renewable Energy Laboratory (NREL). Coordinators submit a range of data that characterize 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 (IR) initiatives, fuel economy activities, and programs to reduce vehicle miles traveled (VMT). NREL analyzes the data and translates them into petroleum-use reduction impacts, which are summarized in this 2014 Annual Metrics Report.
Authors: Johnson, C.; Singer, M.
High-Octane Mid-Level Ethanol Blend Market Assessment
12/16/2015
For years, the United States government has been promoting increased use of biofuels, including ethanol from non-food feedstocks. However, the country has reached the ethanol blend wall, where more ethanol is produced domestically than can be blended into standard gasoline.
This report evaluates the various paths toward adoption of high-octane ethanol blends in the United States. Modeling indicates the potential for a robust market and the study's findings prioritize barriers and propose associated solutions.
Authors: Johnson, C.; Newes, E.; Brooker, A.; McCormick, R.; Peterson, S.; Leiby, P.; Martinez, R.U.; Oladosu, G.; Brown, M.L.
Fuel Cell Buses in U.S. Transit Fleets: Current Status 2015
12/10/2015
This report, published annually, summarizes the progress of fuel cell electric bus (FCEB) development in the United States and discusses the achievements and challenges of introducing fuel cell propulsion in transit. Various stakeholders, including FCEB developers, transit agencies, and system integrators, have expressed the value of this annual status report, which provides a summary of results from evaluations performed by the National Renewable Energy Laboratory. The annual status report tracks the progress of the FCEB industry toward meeting technical targets, documents the lessons learned, and discusses the path forward for commercial viability of fuel cell technology for transit buses. The 2015 summary results primarily focus on the most recent year for each demonstration, from August 2014 through July 2015.
Authors: Eudy, L.; Post, M.; Gikakis, C.
Clean Cities Alternative Fuel Price Report, October 2015
12/10/2015
The Clean Cities Alternative Fuel Price Report for October 2015 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 1, 2015 and October 15, 2015, 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.
Table 2 reports that the nationwide average price (all amounts are per gallon) for regular gasoline has decreased 47 cents from $2.82 to $2.35; diesel decreased 34 cents from $2.93 to $2.59; CNG price decreased 3 cents from $2.12 to $2.09; ethanol (E85) decreased 18 cents from $2.36 to $2.18; propane remained unchanged at $2.90; and biodiesel (B20) has decreased 27 cents from $2.93 to 2.66.
According to Table 3, CNG is $.26 less than gasoline on an energy-equivalent basis, while E85 is $0.49 more than gasoline on an energy-equivalent basis.
Authors: Bourbon, E.
Workplace Charging Challenge, Mid-Program Review: Employees Plug In
12/1/2015
This Program Review takes an unprecedented look at the state of workplace charging in the United States -- a report made possible by U.S. Department of Energy leadership and valuable support from our partners as they share their progress in developing robust workplace charging programs. Through the Workplace Charging Challenge, more than 250 participants are accelerating the development the nation's worksite PEV charging infrastructure and are supporting cleaner, more convenient transportation options within their communities. Challenge partners are currently providing access to PEV charging stations at more than 440 worksites across the country and are influencing countless other organizations to do the same.
Costs Associated with Non-Residential Electric Vehicle Supply Equipment
11/30/2015
As more drivers purchase plug-in electric vehicles (PEVs), there is a growing need for a network of electric vehicle supply equipment (EVSE) to provide power to those vehicles. PEV drivers will primarily charge their vehicles using residential EVSE, but there is also a need for non-residential EVSE in workplace, public, and fleet settings. This report provides information about the costs associated with purchasing, installing, and owning non-residential EVSE.
Developing a Natural Gas-Powered Bus Rapid Transit Service: A Case Study
11/4/2015
The Roaring Fork Transit Authority (RFTA) and its VelociRFTA Bus Rapid Transit (BRT) program are unique in many ways. For example, VelociRFTA was the first rural BRT system in the United States and the operational environment of the VelociRFTA BRT is one of the most severe in the country, with extreme winter temperatures and altitudes close to 8,000 feet. RFTA viewed high altitude operation as the most challenging characteristic when it began considering the use of natural gas. RFTA is the second-largest public transit system in Colorado behind Denver's Regional Transportation District (RTD), and it is one of the largest rural public transit systems in the country. In 2013, RFTA accepted delivery of 22 new compressed natural gas (CNG) buses that went into service after completion of maintenance and refueling facilities earlier that year. This paper examines the lessons learned from RFTA's experience of investigating--and ultimately choosing--CNG for their new BRT program and focuses on the unique environment of RFTA's BRT application; the decision process to include CNG fueling in the project; unforeseen difficulties encountered in the operation of CNG buses; public perception; cost comparison to competing fuels; and considerations for indoor fueling facilities and project funding.
Authors: Mitchell, G.
Model Year 2016: Alternative Fuel and Advanced Technology Vehicles
10/21/2015
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 and propane vehicles.
American Fuel Cell Bus Project Evaluation: Second Report
9/14/2015
This report presents results of the American Fuel Cell Bus (AFCB) Project, a demonstration of fuel cell electric buses operating in the Coachella Valley area of California. The prototype AFCB was developed as part of the Federal Transit Administration's (FTA's) National Fuel Cell Bus Program. Through the non-profit consortia CALSTART, a team led by SunLine Transit Agency and BAE Systems developed a new fuel cell electric bus for demonstration. SunLine added two more AFCBs to its fleet in 2014 and another in 2015. FTA and the AFCB project team are collaborating with the U.S. Department of Energy (DOE) and DOE's National Renewable Energy Laboratory to evaluate the buses in revenue service. This report summarizes the performance results for all four buses through June 2015.
Authors: Eudy, L.; Post, M.
Interstate Electrification Improvement Project Final Report
9/4/2015
This report provides an overview of the Shorepower Truck Electrification Project, which started in May 2011 and ended in March 2015. The project provided financial incentives on idle reduction equipment to 5,000 trucks, to install equipment compatible with shore power. It generated the largest dataset to date on shore power truck stop electrification utilization and use patterns. This report summarizes project data, which provided insight into driver behavior and acceptance, evidence of cost savings, experience with system operations and management; and data for guiding future development of shore power.
Authors: Puckette, M.; Kim, J.
Plugged In: How Americans Charge Their Electric Vehicles
9/1/2015
The U.S. Department of Energy's EV Project and the ChargePoint America project, combined, formed the largest PEV infrastructure demonstration in the world. Between Jan. 1, 2011, and Dec. 31, 2013, this combined project installed nearly 17,000 alternating current (AC) Level 2 charging stations for residential and commercial use and over 100 dual-port direct current (DC) fast chargers in 22 regions across the United States. This report is a summary of the findings from these projects.
Quadrennial Technology Review 2015
9/1/2015
The 2015 Quadrennial Technology Review (QTR) examines the status of the science and technology that are the foundation of our energy system, together with the research, development, demonstration, and deployment (RDD&D) opportunities to advance them. It focuses primarily on technologies with commercialization potential in the midterm and beyond. It frames various trade-offs that all energy technologies must balance across such dimensions as cost, security and reliability of supply, diversity, environmental impacts, land use, and materials use. Additionally, it provides data and analysis on RDD&D pathways to assist decision makers as they set priorities, within budget constraints, to develop more secure, affordable, and sustainable energy services.
Motor Fuel Excise Taxes
9/1/2015
A new report from the National Renewable Energy Laboratory (NREL) explores the role of alternative fuels and energy efficient vehicles in motor fuel taxes. Throughout the United States, it is common practice for federal, state, and local governments to tax motor fuels on a per gallon basis to fund construction and maintenance of our transportation infrastructure. In recent years, however, expenses have outpaced revenues creating substantial funding shortfalls that have required supplemental funding sources. While rising infrastructure costs and the decreasing purchasing power of the gas tax are significant factors contributing to the shortfall, the increased use of alternative fuels and more stringent fuel economy standards are also exacerbating revenue shortfalls. The current dynamic places vehicle efficiency and petroleum use reduction polices at direct odds with policies promoting robust transportation infrastructure. Understanding the energy, transportation, and environmental tradeoffs of motor fuel tax policies can be complicated, but recent experiences at the state level are helping policymakers align their energy and environmental priorities with highway funding requirements.
CNG and Fleets: Building Your Business Case
9/1/2015
Two online resources help fleets evaluate the economic soundness of a compressed natural gas program. The National Renewable Energy Laboratory's (NREL's) Vehicle Infrastructure and Cash-Flow Evaluation (VICE 2.0) model and the accompanying report, Building a Business Case for Compressed Natural Gas in Fleet Applications, are uniquely designed for fleet managers considering an investment in CNG and can help ensure wise investment decisions about CNG vehicles and infrastructure.
Primer on Motor Fuel Excise Taxes and the Role of Alternative Fuels and Energy Efficient Vehicles
8/24/2015
Motor fuel taxes were established to finance our nation's transportation infrastructure, yet evolving economic, political, and technological influences are constraining this ability. At the federal level, the Highway Trust Fund (HTF), which is primarily funded by motor fuel taxes, has become increasingly dependent on general fund contributions and short-term reauthorizations to prevent insolvency. As a result, there are discussions at both the federal and state levels in which stakeholders are examining the future of motor fuel excise taxes as well as the role of electric and alternative fuel vehicles in that future.
This report intends to provide an overview of motor fuel taxation, review its specific relationship to alternative fuel use and vehicle efficiency, and outline approaches that a number of states have taken to address these issues. The specific focus is on motor fuels used in over-the-road transportation, which accounted for approximately 82% of all energy used for transportation in the United States in 2014 (EIA 2015a). The report primarily provides context around federal fuel tax rules and rates, but analogies can be drawn to individual state programs.
Authors: Schroeder, A