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Speakers agreed that biodiesel, renewable diesel, renewable natural gas, hydrogen and battery-electric are all important to reducing emissions.

Savage will team up with hydrogen fuel cell manufacturer Symbio North America as part of efforts to decarbonize the infrastructure and logistics company’s drayage fleet.

Hydrogen fuel cells are emerging as a viable alternative to diesel in many use cases, including longhaul applications that need more range than battery-electric vehicles offer. 

Hydrogen is often categorized by colors meant to indicate its emissions, but experts said getting too hung up on color could hinder the production and adoption of hydrogen-powered equipment.

Hydrogen adoption faces infrastructure hurdles as industry shifts from billion-dollar hub plans to practical solutions. Experts highlight ethanol conversion and cost concerns.

The hydrogen internal combustion engine is already considered zero-emissions technology in the European market, and interest in the North American market is increasing.

Speakers and exhibitors at the 2025 Advanced Clean Transportation Expo illustrated a growing interest in cleaner-burning and renewable fuels for the internal combustion engine.

Mack Trucks pulled back the curtain April 29 on plans to launch a battery-electric version of the Volvo Group division’s recently unveiled flagship on-highway Class 8 tractor, the Pioneer.

Hyundai Motor Co. unveiled the latest iteration of its Class 8 Xcient hydrogen fuel cell electric tractor April 28, overhauling the powertrain, safety systems and driver comforts.

Clarios has released a battery-monitoring technology, IdleLess, that provides real-time insights on heavy-duty vehicles while reducing fuel consumption and emissions.