Westport and Volvo Group, through Cespira, are redefining what’s possible for long-haul and off-road applications. The HPDI fuel system allows industries to keep the power, torque, and efficiency they rely on — now with near-zero greenhouse gas emissions. And with a total cost of ownership that often outperforms diesel, customers no longer have to choose between performance, sustainability, and profitability.
High Pressure Direct Injection ("HPDI") technology was developed to address a critical challenge: how to decarbonize heavy-duty transportation without compromising performance, reliability, or cost-efficiency. Recognizing this opportunity, Westport pioneered HPDI as a breakthrough fuel system enabling internal combustion engines to operate on low-carbon fuels like natural gas, biomethane, and hydrogen—while maintaining diesel-like power and torque.
Westport not only developed the HPDI technology but also shaped the market around it. By working closely with global OEMs and fleets, Westport demonstrated how HPDI could deliver real-world GHG reductions with minimal disruption to vehicle platforms and fueling infrastructure. Through this vision and execution, Westport established HPDI as a commercially viable pathway to decarbonize long-haul and other hard-to-abate transport segments—building the market from the ground up.
Cespira was created to build on this legacy, bringing focused leadership, capital, and partnerships to accelerate HPDI’s global adoption and expand its role in the energy transition.
The HPDI™ fuel system delivers the power, torque, and efficiency expected from diesel—while enabling heavy-duty trucks to run on renewable fuels like biomethane and hydrogen. With approximately 9,000 LNG trucks already in operation across Europe, HPDI is not a concept—it’s at work on the road today.
With infrastructure expanding for gaseous fuels, HPDI offers a low-risk, high-impact path to decarbonization that’s ready for scale—today.
HPDI offers a modular, fuel-flexible system that integrates into existing vehicle platforms with minimal redesign.
It means lower CO2 emissions, fuel cost savings, and compliance with Euro VI and beyond—without sacrificing uptime or performance.
HPDI means a vehicle that feels and drives like diesel, ensuring a smooth transition with no compromise in power or range.
High Pressure Direct Injection is a fuel system used to reduce CO2 in long-haul trucking and other high-load and off-road applications. HPDI technology replaces greenhouse gas-emitting fuels like diesel with carbon-neutral or zero-carbon fuels like biogas or hydrogen. It is affordable, durable, efficient, and often enhances the performance characteristics associated with diesel.
Fully OEM integrated LNG/RNG fuel system offering industry leading fuel costs and CO2 emissions savings for heavy duty vehicles.
A practical, efficient, cost effective and robust
solution for hydrogen
mobility.
Heavy-Duty
Off-Road
Construction
Rail
Marine