Calstart, a non-profit focused on clean energy and transportation, launched an interactive tool to help fleets better understand and analyze the zero-emission medium- and heavy-duty vehicle market.
Calstart Creates Zero-Emission Vehicle Comparison Tool
Calstart's Zero-Emission Technology Inventory Data Explorer allows users to filter, explore, compare, contrast, and visualize data about zero-emission truck and bus models.

Calstart's Zero-Emission Technology Inventory Data Explorer allows users to filter, compare and visualize data about zero-emission truck and bus models.
Screen Grab: Calstart
The Zero-Emission Technology Inventory (ZETI) Data Explorer allows users to filter, explore, compare, contrast, and visualize data about zero-emission truck and bus models. It enables users to view and compare various data points such as:
model availability by region or manufacturer,
vehicle availability per manufacturer,
range per vehicle type,
battery capacity, and;
market trends.
The data comes from Drive to Zero’s ZETI database, which seeks to establish a shared knowledgebase of all currently available zero-emission medium- and heavy-duty vehicles; to date, there are more than 800 distinct models included.
Calstart’s Drive to Zero program updates ZETI Data Explorer regularly.
More Fuel Smarts

Range Energy Confirms eTrailer Performance in Winter Testing as Commercial Rollout Nears
Range Energy said its production-ready eTrailer system proved it can boost stability, safety, and efficiency in sub-zero winter conditions as the company moves toward scaled deployment.
Read More →
Top Green Fleets of 2026: Nomination Deadline Extended
Is your company a leader in sustainability efforts among trucking fleets? If so, Heavy Duty Trucking's editors want to hear from you.
Read More →New Lightweight Wheel Cover Targets Simpler Aero Gains [Watch]
Watch to learn how Deflecktor's new wheel cover design is taking a simpler approach to aerodynamics, with an eye toward making it more practical for both trucks and trailers.
Read More →
Deflecktor: Hubbub Aerodynamic Wheel Cover Cost-Effective Even for Trailers
Aerodynamic wheel covers can deliver small but meaningful fuel-economy gains for fleets, and Deflecktor says its latest design aims to make the technology easier and more affordable to deploy.
Read More →Cutting Fleet Fuel Costs in a Volatile Market [Listen]
When diesel prices are as volatile as they've been in 2026, it makes it tough for trucking fleets to plan and control costs. Breakthrough Fuel's Jenny Vander Zanden has insights on near-term savings strategies.
Read More →Diesel Price Swings Aren’t Over. What Can Your Fleet Do?
Practical steps fleets can take to manage fuel costs, from purchasing strategies to driver behavior.
Read More →
Diesel Prices Surge Toward Record Highs as Oil Price Volatility Intensifies
Prices jumped another 24 cents in a week, with California topping $7.50 and new data showing fleet fuel costs may already be at record levels.
Read More →
Volvo Testing Hydrogen-Fueled Internal Combustion Engines on Trucks in Europe
Hydrogen combustion engine trucks will be especially suitable over longer distances and in regions where there is limited charging infrastructure or time for recharging of battery-electric trucks, according to the company.
Read More →
Toyota’s Entry Into Cellcentric Signals Push to Accelerate Hydrogen Truck Adoption
By joining Daimler Truck and Volvo, Toyota brings fuel cell expertise to a joint effort aimed at making hydrogen viable for heavy-duty transport.
Read More →
U.S. Diesel Prices Hit $5.40, Top $7 in California
Trucking operators are slowing speeds, cutting empty miles, and declining unprofitable freight as diesel costs continue to rise due to conflict in the Middle East.
Read More →
