News Releases

Published: August 26, 2009

US DOE Announces Recovery Act Funding for up to 2,800 Natural Gas Vehicles

VANCOUVER, BC – Westport Innovations Inc. (TSX:WPT/NASDAQ:WPRT), a global leader in alternative fuel, low-emissions transportation technologies, announced today that the US Department of Energy’s (DOE) Clean Cities program to reduce petroleum consumption in the transportation sector has awarded $300 million funding for 25 cost-share projects across the US that will deploy more than 9,000 alternative fuel and energy efficient vehicles and build 542 new refueling stations. Based on the DOE’s announcement, funding for approximately 500 LNG trucks and 2,300 CNG vehicles, including refuse trucks and shuttle buses, were awarded. Westport anticipates that a significant portion of these 2,800 vehicles will be sourced from manufacturers incorporating Westport’s 15-litre GX engine or CWI’s 8.9 litre ISL G engine.

“This is a significant and decisive announcement for natural gas trucks and urban fleet vehicles,” said Michael Gallagher, President & Chief Operating Officer of Westport. “Given the vehicle applications of the projects awarded funding, we expect to benefit from the majority of funding through the sale of Westport HD systems and through the sale of Cummins Westport ISL G engines. Given the current price gap between oil and natural gas, and the recent breakthroughs in natural gas shale resource development, the benefits have never been clearer. We congratulate the DOE Clean Cities program for their timely deployment of these stimulus projects that will inevitably lead to dramatic growth in the green energy industry.”

Details of the projects approved for funding can be found on the DOE website at www.energy.gov/news2009/7843.htm. Of the projects, 18 include LNG and/or CNG heavy-duty vehicles and refueling stations. Highlights for Westport would include the South Coast Air Quality Management District’s UPS Ontario-Las Vegas LNG Corridor Expansion Project, which will provide a 700 mile LNG fueling corridor along one of the most heavily travelled truck routes in the US. UPS will construct a publicly accessible LNG fuel station in Las Vegas and will deploy 150 LNG heavy-duty trucks as part of this DOE program. The San Bernadino Associated Governments’ J.B. Hunt LNG Truck Project: Made in America Initiative will allow J.B. Hunt to deploy its first LNG trucks in Southern California. Natural gas refuse truck programs were funded in New Jersey, Long Island, Chicago, and Idaho. Port Drayage projects in Los Angeles also received funding.

Westport cautions that no contracts have been awarded for these programs and no orders for vehicles have been released yet. While the exact timing of the funding awarded to applicants is unclear at this time, the Company expects further updates from both our customers and government agencies as contracting processes begin.

About Clean Cities

Clean Cities is a government-industry partnership sponsored by the U.S. Department of Energy’s (DOE) Vehicle Technologies Program. Clean Cities’ mission is to advance the energy, economic and environmental security of the United States by supporting local decision to adopt practices that reduces the use of petroleum in the transportation sector. The funding is provided under the American Recovery and Reinvestment Act awards for alternative fuels and advanced vehicle pilot program.

About Westport

Westport, a division of Westport Fuel Systems Inc., engineers the world’s most advanced natural gas engines and vehicles. We work with original equipment manufacturers worldwide from design through to production, creating products to meet the growing demand for vehicle technology that will reduce both emissions and fuel costs. To learn more about our business, visit www.westport.com, subscribe to our RSS feed, or follow us on Twitter @WestportDotCom

Cautionary Note Regarding Forward Looking Statements

This document contains forward-looking statements, including statements regarding the demand for our products, the future success of our business and technology strategies, investment, cash and capital requirements, intentions of partners and potential customers, the performance and competitiveness of our products and expansion of product coverage, future market opportunities, speed of adoption of natural gas for transportation, growth in demand as a result of new emission standards and terms of future agreements. These statements are neither promises nor guarantees, but involve known and unknown risks and uncertainties and are based on assumptions that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activities, performance or achievements expressed in or implied by these forward looking statements. These risks and assumptions include risks and assumptions related to our revenue growth, operating results, industry and products, the general economy, conditions of and access to the capital and debt markets, governmental policies and regulation, technology innovations, fluctuations in foreign exchange rates, global government stimulus packages, the acceptance of natural gas vehicles in fleet markets, the relaxation or waiver of fuel emission standards, the inability of fleets to access capital or government funding to purchase natural gas vehicles, the sufficiency of bio methane for use in our vehicles, the development of competing technologies as well as other risk factors and assumptions that may affect our actual results, performance or achievements or financial position discussed in our most recent Annual Information Form and other filings with securities regulators. Readers should not place undue reliance on any such forward-looking statements, which speak only as of the date they were made. We disclaim any obligation to publicly update or revise such statements to reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward looking statements except as required by National Instrument 51-102.

More Information

Westport Fuel Systems
(Investor Inquiries)

Shawn Severson
Investor Relations
T 604-718-2046
invest@wfsinc.com
www.wfsinc.com

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