Hydrogen-Powered Heavy-Duty Trucks

The report evaluates hydrogen fuel-cell electric vehicles (FCEVs) and hydrogen combustion engines for heavy-duty freight. It finds that while FCEVs offer range and weight advantages, they are significantly less energy-efficient than battery-electric vehicles (BEVs) and suffer from high fuel costs. The document highlights that most hydrogen is currently produced from natural gas, leading to life-cycle emissions similar to diesel trucks, and warns that hydrogen combustion engines still emit harmful air pollutants. Consequently, the author concludes that FCEVs will likely remain niche solutions for specific long-haul applications where BEVs are infeasible.

• The environmental benefit of fuel-cell electric vehicles (FCEVs) depends on hydrogen production methods; while they have zero tailpipe emissions, hydrogen produced from natural gas results in life-cycle climate impacts similar to diesel trucks. Even when using 'green' hydrogen from renewables, a battery-electric tractor truck is estimated to produce approximately 13 percent fewer global warming emissions over its lifetime.
• Hydrogen combustion engines are less desirable than FCEVs or BEVs because they continue to emit air pollutants, including ozone-forming nitrogen oxides and fine particulates, and have the highest per-mile operating costs due to low energy efficiency.
• High fuel costs are a primary economic barrier for hydrogen trucks. In 2023, retail green hydrogen in California reached approximately $30/kg, far exceeding the $3/kg to $6.50/kg range estimated as necessary for FCEVs to compete economically with BEVs by 2030.
• Battery-electric vehicles (BEVs) are significantly more energy-efficient than FCEVs because they avoid the energy losses associated with hydrogen production and conversion. A BEV truck can travel roughly three times as far as an FCEV using the same amount of renewable energy.
• FCEVs provide advantages in vehicle weight and load capacity compared to long-haul BEVs, which currently face a weight penalty of up to 25 percent due to large batteries. However, battery technology improvements are expected to reduce this freight capacity gap to around 5 percent within a decade.
• Hydrogen fueling infrastructure is more expensive to construct than BEV infrastructure. The California Transportation Commission estimates a hydrogen truck fueling station costs between $8.6 million and $12.6 million, compared to $5 million to $9 million for a BEV station.
• Hydrogen leakage during fueling, estimated between 2 and 10 percent, poses a climate risk because hydrogen has a 20-year warming potential over 30 times that of carbon dioxide.

APA

Wilson, S. (2023). Hydrogen-Powered Heavy-Duty Trucks. Union of Concerned Scientists. https://www.ucs.org/sites/default/files/2024-04/hydrogen-powered-heavy-duty-trucks.pdf

Chicago

Wilson, Sam. Hydrogen-Powered Heavy-Duty Trucks. Union of Concerned Scientists, 2023. https://www.ucs.org/sites/default/files/2024-04/hydrogen-powered-heavy-duty-trucks.pdf.

Wikipedia

{{cite report |last1=Wilson |first1=Sam |title=Hydrogen-Powered Heavy-Duty Trucks |publisher=Union of Concerned Scientists |date=November 2023 |url=https://www.ucs.org/sites/default/files/2024-04/hydrogen-powered-heavy-duty-trucks.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{wilson2023hydrogenpowered, author = {Wilson, Sam}, title = {{Hydrogen-Powered Heavy-Duty Trucks}}, institution = {Union of Concerned Scientists}, year = {2023}, month = nov, url = {https://www.ucs.org/sites/default/files/2024-04/hydrogen-powered-heavy-duty-trucks.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }