CALSTART Releases Spring Update to ZET Inventory Report for the U.S.

Current market snapshot shows an increase in medium- and heavy-duty (MHD) vehicle deployments regardless of state regulations and incentives

CALSTART released it’s latest market update for its Zeroing in on ZETs series, which provides a count of newly adopted MHD ZETs that have been deployed within the United States according to data collected through December 2023. Alongside deployment statistics for ZETs, the market update also characterizes the existing U.S. MHD truck market for Class 2b (8,501–10,000 lbs.) through Class 8 (33,000 lbs. and above) vehicles, categorized as cargo vans, medium-duty (MD) step vans, MD trucks, refuse trucks, yard tractors, and all other heavy-duty (HD) trucks.

This market update shows the advancement of the U.S. ZET market and can help policymakers, original equipment manufacturers, and fleet owners plan for a zero-emission (ZE) future.

Key findings in the current update include:

• As of December 2023, there have been more than 30,000 ZETs deployed. There were 25,378 new ZET deployments in 2023 alone.
• Approximately 25,931 ZE cargo vans have been deployed, the leading vehicle segment for ZET deployments. They account for 86 percent of all ZET deployments.
• From 2022 to 2023, ZET deployments grew by 546 percent. The vehicle segments with the highest growth were cargo vans (911 percent) and HD trucks (369 percent).
• The leading states for overall ZET deployments are California (4,435), Texas (3,468), and Florida (2,289) with New York, New Jersey, and Illinois all having more than 1,000 ZET deployments. 
• The leading three states for new ZET deployments in 2023 were Texas, California, and Florida.
• Arkansas saw the greatest percentage increase of ZET deployments. Through the end of 2022, the state had only six ZETs; now, as of December 2023, it has 345 ZETs (5,650%). Arkansas is followed by Nebraska (4,833%) and North Carolina (4,413%).

The diverse states that lead in ZET deployments today signify that companies see the return on investment of using these types of vehicles and that ZETs help reach sustainability goals.

“The increase of 25,000+ ZETs deployed in 2023 shows the progress and capability of ZETs in transportation,” said Tor Larson, Vice President of Trucks, Off-Road, and Marketing, CALSTART. “The gap between ZE and fossil-fuel equipment and technology are closing fast. With ZETs now operating in all 50 states, the growth nationwide is very encouraging—fleets are adopting ZETs regardless of regulation.” CALSTART will continue to update the data in subsequent editions of Zeroing in on ZETs. For more information on current CALSTART programs and initiatives, visit our website now

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