Currently, battery electric options are more than twice as expensive as their diesel counterparts. However, we suggest focusing on the mid-term (∼2030) scenario, which is distant enough that large-scale deployment of long-haul BETs is plausible, but close enough that the uncertainties in the projections are relatively small. BETs get cheaper but do not achieve cost-parity even in the long-term scenario where they are ∼ 20% more expensive than diesel. The diesel baseline does not change significantly over time as the projected rising diesel prices get compensated with the improved efficiencies of the diesel engine as reported by Jones et al. . As discussed in our previous work, 102 trucking is a low-margin business that requires price-competitive alternatives to replace diesel. Therefore, even a 20% increase in the cost of shipping would be enough to hinder the widespread adoption of battery electric powertrains. Next, we present the cost per tonne of CO 2 avoided with BETs, followed by a break-even analysis for different parameters such as electricity prices, battery energy density, battery range, unit cost of battery and powertrain efficiency.