Cummins, Accelera emphasize decarbonization, hydrogen at ACT Expo

Cummins, Accelera emphasize decarbonization, hydrogen at ACT Expo

The company showcased technologies including electrolyzers to produce hydrogen that can power both a hydrogen-fueled internal combustion engine concept truck and a fuel cell electric powertrain.

Cummins and Accelera by Cummins, the company’s zero-emissions technology brand, showcased a variety of technologies in their booth at Advanced Clean Transportation Expo. The company says the line-up emphasizes the role that hydrogen will play as part of “Destination Zero,” Cummins’ strategy to go further, faster to reduce greenhouse gas (GHG) and air quality impacts of its products and reach zero emissions by 2050. The company showcased technologies across the hydrogen value chain, including electrolyzers to produce hydrogen that can power both a hydrogen-fueled internal combustion engine (H2-ICE) concept truck and a fuel cell electric powertrain.

“To fully develop the hydrogen economy, we need to spur demand for hydrogen. We are developing a range of hydrogen solutions and believe H2-ICE powered trucks alongside wider adoption of fuel cell electric vehicles can help encourage development of hydrogen fuel infrastructure. In this way, hydrogen engines and fuel cells are complementary technologies, working together to drive the hydrogen economy forward,” explained Jennifer Rumsey, Cummins president and CEO. “At Cummins, we are actively scaling electrolyzer manufacturing, encouraged by the increased demand we are seeing. Electrolyzers are one of the key pieces of technology for green hydrogen production and will help decarbonize our economy and advance the clean energy transition.”


The hydrogen ecosystem is underpinned by green hydrogen production, Cummins says. Accelera’s electrolyzer technology is enabling the infrastructure scale-up needed to support hydrogen-powered vehicles. An electrolyzer splits water into oxygen and hydrogen, which can be used immediately or stored as a liquid or gas and transported. When powered by renewable electricity, like solar or wind, the hydrogen produced is completely carbon-free.

On display at ACT is Accelera’s 2.5 megawatt (MW) proton exchange membrane (PEM) electrolyzer stack, which is the heart of its large-scale “HyLYZER” electrolyzer product line.

X15H Peterbilt Model 579 concept truck

Cummins revealed a heavy-duty concept truck featuring the X15H hydrogen internal combustion engine (H2-ICE). The proof-of-concept installation with ratings up to 500 horsepower (372 kW) features a 700-bar pressure 80 kg high-capacity hydrogen storage system. The H2-ICE conversion highlights the opportunity for heavy-duty truck applications to operate on zero-carbon hydrogen fuel with an operating range of more than 500 miles, Cummins says. The hydrogen conversion work is not expected to compromise truck performance, cargo capacity or payload. The substitution of the diesel engine with the 15-liter hydrogen engine and integration with the existing driveline highlights the ability of H2-ICE to offer a zero-carbon solution for fleets to deploy quickly with limited investment.

Technical development work on the H2-ICE concept truck was undertaken by the Cummins team at the Cummins Machine Integration Center at its headquarters in Columbus, Indiana.

The X15H hydrogen engine with up to 1900 foot-pounds torque is an all-new engine platform featuring technology to enhance power density, reduce friction losses and improve thermal efficiency, according to the company. As a result, performance is equivalent to that of a similar displacement diesel engine and compatible with the same transmissions, drivelines and cooling packages, Cummins says. A further benefit of the X15H is significantly quieter running than a diesel, the company adds.

Hydrogen fuel cell engine

Hydrogen fuel cell engines turn hydrogen stored onboard a fuel cell electric vehicle (FCEV) into electricity to power the electric powertrain. This creates efficient, zero-emissions power for demanding applications with longer ranges and harder duty cycles, Cummins says. On display at ACT Expo is Accelera’s FCE150 Gen 4 fuel cell engine, which features increased power density, efficiency and durability with ease of system integration. It is available in 150 kW and 300 kW configurations with the flexibility to decarbonize a range of heavy-duty applications, Cummins says.

Batteries and electrified systems

To complete the electric powertrain of an FCEV or a purely battery electric vehicle (BEV), Cummins says Accelera provides a full portfolio of batteries and electrified products. This includes a range of nickel manganese cobalt (NMC) and lithium-iron phosphate (LFP) technologies, including the BP107E on display.

Accelera also provides ePowertrain and traction systems in its electrified portfolio. At ACT, the brand debuted its next-gen 14Xe ePowertrain, featuring increased power, peak torque and motor efficiency; the industry’s first Hydraulic Disc Brake with integrated parking brake; and an eOptimized Twin Countershaft Transmission for enhanced compatibility with heavy-duty applications – as well as displaying its combination of products that create a complete emissions-free medium-duty chassis.

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