November 7, 2025. Westport Fuel Systems Inc. announces a breakthrough solution designed to dramatically expand the addressable market for HPDI™ while significantly improving the affordability and performance of heavy-duty natural gas trucks in many markets globally. Westport’s compressed natural gas (CNG) solution, when combined with the on-engine HPDI™ fuel system of Cespira, Westport’s joint venture with the Volvo Group, is designed to enable fleet operators to achieve diesel-like performance at a lower total cost of ownership and reduce or even eliminate greenhouse gas emissions.
The HPDI system has been commercially available for several years as a liquefied natural gas (LNG) solution. This LNG HPDI technology is now operating in more than 30 countries, powering over 9,000 trucks worldwide. However, in many markets with extensive pipeline infrastructure and abundant natural gas resources—particularly in North America—Westport believes that a CNG solution is a better fit than LNG. Until now, CNG has not been an option for the HPDI system.
Westport is revealing today a proprietary CNG solution that leverages advanced high-pressure storage technology, designed to deliver the performance required for HPDI. This breakthrough enables faster time-to-market for CNG-powered HPDI applications and prioritizes reduced lifecycle costs by optimizing system design. The new platform will expand HPDI’s reach to markets that require a CNG-based solution, enhancing its accessibility and economic advantages. Field testing for Westport’s CNG solution is expected to begin in 2026, with the path to commercialization expected to follow.
“Westport is redefining what’s possible for natural gas-powered transportation,” said Dan Sceli, Chief Executive Officer of Westport. “Our goal has always been to deliver practical, affordable, and scalable solutions for fleets that need reliability and performance without compromising sustainability. We believe that CNG with HPDI will give operators a clear advantage over other low-carbon technology options—helping fleets reduce costs, cut emissions, and stay competitive in a changing market.”