Propulsion system sure is expensiveThis study reviews recent literature on current and projected battery-electric and hydrogen fuel cell tractor truck costs. In the available literature, battery-electric tractor truck up-front costs range from about $200,000 to $800,000, and generally costs increase with increased driving range as a function of total battery capacity. The range of fuel cell truck costs in these same studies spanned from roughly $200,000 to $600,000. At present, electric propulsion systems for zero-emission tractor trucks make up roughly 85% to 90% of total truck costs, but this is expected to fall to 75% to 85% as battery pack and fuel cell system costs are estimated to drop by 50% and 65%, respectively, over the next decade.