Canada, Vancouver
A study by California-based TIAX LLC has confirmed a 21% reduction in greenhouse gas (GHG) emissions in LNG trucks featuring a Westport ISX G engine and LNG fuel system based on a 10 year, 400,000 mile scenario. Under this scenario, a typical Westport LNG-equipped natural gas truck operating at the San Pedro Bay ports in California will realize reductions of 21 tonnes of GHG emissions per year compared to an equivalent diesel truck.
“Adding strong environmental benefits to the energy security of an inexpensive, domestically available fuel in natural gas helps Westport get LNG trucks on the road,” said Mike Gallagher, President and Chief Operating Officer at Westport Innovations. “The report affirms our testing and development efforts over the years to create an efficient, robust product with clear environmental benefits. Using the example of the San Pedro Bay Ports, operating 8,400 LNG container hauling trucks at the Ports could realize the equivalent of removing over 39 thousand cars from the road or 176,400 tonnes of GHG reductions annually.”
TIAX was commissioned to develop a life-cycle cost and emissions estimator for the comparison of current and future heavy-duty engines fuelled by diesel or natural gas. The model includes three different heavy-duty applications for California including urban buses, refuse haulers, and heavy-duty (long-haul) trucks. Emissions from the well to the wheel are factored, using models from California regulatory authorities.
The report included a well to wheel emissions analysis for 11 different natural gas fuel pathways. The results showed 18% to 25% less GHG emissions for all North American natural gas supply as compared to the cleanest available diesel fuel (ultra low sulphur diesel or ULSD). The main pathway of natural gas supply for the south coast region of California, which is North American gas liquefied in California and provided by Clean Energy Fuels Corp., has a GHG reduction of 21%.
For more information or to view the full report, visit www.westport.com.
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