Navistar Commitment to Natural Gas

While this news item is not about renewable energy per se, I thought it might be of interest because natural gas is the least detrimental to the environment of the fossil fuels.  We would definitely reduce our carbon footprint if we made greater use of natural gas, and less of diesel.

Navistar Advances Commitment to Natural Gas Through Partnership With Clean Energy

Company Commits to Comprehensive Natural Gas Product Strategy with Broad Range of Medium- and Heavy-Duty Truck Offerings

LISLE, Ill., Feb. 1, 2012 /PRNewswire/ -- Navistar, Inc. today announced its launch of a comprehensive natural gas strategy, including integrated natural gas product offerings and a strategic partnership with Clean Energy Fuels Corp. (NASDAQ: CLNE)  that will provide customers with a sustainable, commercially viable solution for adding natural gas powered trucks to their fleets. 

"Natural gas has clearly emerged as the most realistic alternative fuel option for the trucking industry," said Dan Ustian, Navistar chairman, president and CEO.  "Together, Navistar and Clean Energy have come up with a breakthrough program that offers customers a quicker payback on their investment plus added fuel costs savings from day one of operation. When combined with Navistar's industry-leading dealer network and Clean Energy's unmatched fuel distribution system, customers can be confident that bringing natural gas vehicles into their fleets makes good business sense."

"We believe the deployment of new, innovative, heavy-duty natural gas engines by world-class original equipment truck manufacturers like Navistar is accelerating the transition to natural gas fuel as a game-changer for heavy-duty trucking," said Andrew J. Littlefair, Clean Energy President and CEO. "We welcome the opportunity to work with Navistar to bring the benefits of clean, cost-effective, domestically abundant natural gas fuel to the company's trucking customer base."

By leveraging the company's existing integrated vehicle and powertrain platforms, Navistar will offer the broadest range of Class 6 through Class 8 CNG-/LNG-powered vehicles in the category. Clean Energy will provide a comprehensive CNG/LNG fueling solution to meet customer demands and aid in bringing new customers into the natural gas market.

Navistar and Clean Energy will work closely with the company's commercial truck dealers and fleet customers on the deployment of natural gas powered trucks and a natural gas distribution support system. Together, the companies will demonstrate how a natural gas integrated vehicle offering with the right distribution and fueling solution can be integrated into a fleet's operations to reduce costs and drive efficiencies. The strategic partnership will help accelerate the adoption of natural gas technologies by making it easier for customers to invest in the new technology, including incentives aimed at neutralizing the cost difference for the diesel fuel equivalent for those who purchase at least 1,000 diesel gallon equivalents of natural gas fuel each month.

Clean Energy Distribution Support

Clean Energy, the leading provider of natural gas fuel for transportation in North America, recently unveiled a route plan for the first phase of 150 new liquefied natural gas (LNG) fueling stations for America's Natural Gas Highway (ANGH). The company has identified 98 locations and anticipates having 70 stations open by the end of 2012 in 33 states.

Many of the fueling stations will be co-located at Pilot-Flying J Travel Centers already serving goods movement trucking through an exclusive agreement with Pilot to build, own and operate natural gas fueling facilities at agreed-upon travel centers. Pilot-Flying J is the nation's largest truck-stop operator with more than 550 retail properties in 47 states.

"The deployment of new, innovative, heavy-duty natural gas engines by world-class original equipment truck manufacturers like Navistar is accelerating the transition to natural gas fuel as a game-changer for heavy-duty trucking. We welcome the opportunity to work with Navistar to bring the benefits of clean, cost-effective, domestically-abundant natural gas fuel to its trucking customers," said James Harger, Chief Marketing Officer, Clean Energy.        

Navistar's Product Offerings

Navistar will leverage its existing commercial truck and engine platforms to offer the broadest portfolio of integrated products for the natural gas market. The company will continue to offer International DuraStar® and WorkStar® vocational trucks with its natural gas powered MaxxForce® DT, developed in conjunction with Emissions Solutions Incorporated (ESI) of McKinney.

To meet the growing demands of the regional haul and class 7/8 vocational market Navistar will offer the Cummins-Westport ISL-G, in the International® TranStar and WorkStar. Additionally, Navistar will enter into a phase II developmental agreement with Clean Air Power Ltd. on the International ProStar, WorkStar and PayStar vocational trucks, powered by a diesel pilot injection LNG MaxxForce 13-liter engine.

"One of the major obstacles in customer transition to natural gas has been the lack of a gas powered range of engines designed to meet the multiple requirements without compromise," said Jim Hebe, Navistar senior vice president, North America Sales Operations. "Navistar—with its extended range of truck engines—is uniquely able to leverage engine platforms into the industry's broadest range of natural gas trucks. When the MaxxForce 13L is introduced in mid-2013, customers will have a capable range of natural engines and trucks, from 7.6 liter to 13 liter with horsepower ranging from 200 to 450."

Summary Facts: What makes Navistar, Clean Energy Alliance Unique?

• Product Portfolio
  • Navistar offers the broadest truck and engine offering Class 6 thru Class 8
• Availability/Distribution
  • Commitment to support on-highway fueling requirements through Pilot/Flying J
  • Capabilities to provide customer specific fueling stations
  • Partnering with Navistar dealers and Idealease to meet on-site fueling needs
• Affordability of Technology
  • Navistar is committed to provide CNG/LNG offerings that provide payback within range of customer expectations
  • Through our partnership, Clean Energy and Navistar are offering an incentive program (Fuel and Truck) that will mitigate or equalize the cost of vehicle with diesel equivalent
• Economic Model makes CNG/LNG a viable fuel without incentives
  • Clean Energy will guarantee fuel prices at a significant reduction from diesel for the term of 5 years
  • Government subsidies and incentives not required to make the economic model work
• Support
  • Navistar offers the broadest coverage in North America, nearly 800 outlets
  • Providing facility training and building requirements
  • Providing sales and service training for dealership technicians and sales staff

About Navistar

Navistar International Corporation (NYSE: NAV) is a holding company whose subsidiaries and affiliates produce International® brand commercial and military trucks, MaxxForce® brand diesel engines, IC Bus™ brand school and commercial buses, Monaco® RV brands of recreational vehicles, and Workhorse® brand chassis for motor homes and step vans. The company also provides truck and diesel engine service parts. Another affiliate offers financing services. Additional information is available at www.Navistar.com/newsroom.


About Clean Energy

Clean Energy (Nasdaq: CLNE) is the largest provider of natural gas fuel for transportation in North America and a global leader in the expanding natural gas vehicle market. It has operations in CNG and LNG vehicle fueling, construction and operation of CNG and LNG fueling stations, biomethane production, vehicle conversion and compressor technology. Today, Clean Energy fuels more than 25,000 vehicles at 273 strategic locations across the United States and Canada with a broad customer base in the refuse, transit, trucking, shuttle, taxi, airport and municipal fleet markets. Clean Energy del Peru, a joint venture, fuels vehicles and provides CNG to commercial customers in Peru. We own (70%) and operate a landfill gas facility in Dallas, Texas, that produces renewable natural gas, or biomethane, for delivery in the nation's gas pipeline network, and we plan to build a second facility in Michigan. We own and operate LNG production plants in Willis, Texas and Boron, Calif. with combined capacity of 260,000 LNG gallons per day and that are designed to expand to 340,000 LNG gallons per day as demand increases. NorthStar, a wholly owned subsidiary, is the recognized leader in LNG/LCNG (liquefied to compressed natural gas) fueling system technologies and station construction and operations. BAF Technologies, Inc., a wholly owned subsidiary, is a leading provider of natural gas vehicle systems and conversions for taxis, vans, pick-up trucks and shuttle buses. IMW Industries, Ltd., a wholly owned subsidiary based in Canada, is a leading supplier of compressed natural gas equipment for vehicle fueling and industrial applications with more than 1,200 installations in 24 countries. For more information, visit www.cleanenergyfuels.com

Clearing a Potential Roadblock to Bisabolane

From the Lawrence Berkeley National Laboratory:

Clearing a Potential Roadblock to Bisabolane

Joint BioEnergy Institute Researchers Identify Key Enzyme Structure

January 09, 2012

Lynn Yarris (510) 486-5375  lcyarris@lbl.gov

JBEI researchers determined the structure of the AgBIS enzyme and found it to consist of three helical domains, the first three-domain structure ever found in a synthase of sesquiterpenes. This discovery holds importance for advanced biofuels and other applications.

The recent discovery that bisabolane, a member of the terpene class of chemical compounds used in fragrances and flavorings, holds high promise as a biosynthetic alternative to D2 diesel fuel has generated keen interest in the green energy community and the trucking industry. Now a second team of researchers with the U.S Department of Energy (DOE)’s Joint BioEnergy Institute (JBEI) has determined the three-dimensional crystal structure of a protein that is key to boosting the microbial-based production of bisabolane as an advanced biofuel.

The JBEI research team, led by bioengineers Paul Adams and Jay Keasling, solved the protein crystal structure of an enzyme in the Grand fir (Abies grandis) that synthesizes bisabolene, the immediate terpene precursor to bisabolane. The performance of this enzyme – the Abies grandis α-bisabolene synthase (AgBIS) – when engineered into microbes, has resulted in a bottleneck that hampers the conversion by the microbes of simple sugars into bisabolene.

“Our high resolution structure of AgBIS should make it possible to design changes in the enzyme that will enable microbes to make bisabolene faster,” says Adams, a leading authority on x-ray crystallography. “It should also enable us to engineer out inhibition effects that slow throughput, and perhaps also  engineer the enzyme to produce other kinds of fuels similar to bisabolane.”

Adams, who heads JBEI’s Technologies Division, is the corresponding author of a paper describing this work in the Cell Press journal Structure. The paper is titled “Structure of a Three-Domain Sesquiterpene Synthase: A Prospective Target for Advanced Biofuels Production.” Co-authoring it with Adams and Keasling were Ryan McAndrew, Pamela Peralta-Yahya, Andy DeGiovanni, Jose Pereira and Masood Hadi.

JBEI is one of three DOE Bioenergy Research Centers established by DOE’s Office of Science to advance the technology for the commercial production of advanced biofuels. It is a multi-institutional partnership led by the Lawrence Berkeley National Laboratory (Berkeley Lab) and headquartered in Emeryville, CA.

This past fall, JBEI researchers identified bisabolane as a potential new advanced biofuel that could replace D2 diesel, today’s standard fuel for diesel engines, with a clean, green, renewable alternative that’s produced in the United States. Using the tools of synthetic biology, the researchers engineered strains of bacteria and yeast to produce bisabolene from simple sugars, which was then hydrogenated into bisabolane. While showing much promise, the yields of bisabolene have to be improved for microbial-based production of bisabolane fuel to be commercially viable.

“The inefficient terpene synthase enzyme is one of the bottlenecks in the metabolic pathway used by the engineered microbes,” says Peralta-Yahya, a lead member of the earlier JBEI team as well as the current team. “Knowing the AgBIS crystal structure will guide us in engineering it for improved catalytic efficiency and stability, which should bring our bisabolene yields closer to economic competitiveness.”

Peralta-Yahya and her colleagues determined that the AgBIS enzyme consists of three helical domains, the first three-domain structure ever found in a synthase of sesquiterpenes – terpene compounds that contain 15 carbon atoms. The discovery of this unique structure holds importance on several fronts, as co-lead author of the Structure paper McAndrew explains.

“That we found the structure of AgBIS to be more similar to diterpene (20 carbon terpene compounds) synthases not only provides us with insight into the function of these less well characterized enzymes, it also provides us with clues to the evolutionary heritage as the archetypal three-domain terpenoid synthases became two-domain sesquiterpene synthases in plants. Furthering our knowledge of the structures and functions of terpenoid synthases may prove to have abundant practical applications aside from advanced biofuels because these enzymes produce a wide variety of specialized chemicals.”

Solving the three-dimensional crystal structure of AgBIS was made possible by the protein crystallography capabilities of Berkeley Lab’s Advanced Light Source (ALS), a DOE Office of Science national user facility for synchrotron radiation, and the first of the world’s third generation light sources. For this work, the JBEI team used three of the five protein crystallography beamlines operated by the Berkeley Center for Structural Biology (BCSB) – beamlines 8.2.1, 8.2.2, and 5.0.3.

“We needed to use multiple beamlines because we collected data on several crystals – the protein by itself, and the protein with different inhibitors/cofactors,” says Adams, who headed the  BCSB from 2004 to 2011. “Also, the approach we used to solve the AgBIS structure required high flux tunable x-rays such as those provided at 8.2.1 and 8.2.2, which are superbend beamlines.”

This research was supported by the DOE Office of Science.

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