Zero-emission truck deployments in the United States jumped 37% in 2025, according to CALSTART's Zeroing in on Zero-Emission Trucks report. The surge came despite a sluggish first half, with momentum building sharply in the latter part of the year.
By year-end, zero-emission models represented 4.14% of all new truck deployments. The second-half acceleration suggests improving fleet adoption rates, though the overall share remains modest.
The report highlights growing but uneven progress. Early-year hurdles included charging infrastructure gaps and higher upfront costs, which weighed on purchasing decisions. The second-half pickup may reflect policy incentives and expanding vehicle availability.
Supply chain constraints for batteries and components continue to limit production scale. CALSTART's data underscores that while momentum is building, the pace remains below what many clean energy advocates consider necessary for 2030 climate goals.
Some industry analysts caution that the 4.14% figure masks wide variation across truck classes and regions. Heavy-duty long-haul trucks lag behind medium-duty and drayage fleets, where routes are shorter and charging infrastructure is more accessible.