Road freight vehicles account for a significant share of global CO2 emissions, prompting a shift towards zero-emission propulsion systems. Despite several carbon-neutral alternatives like hydrogen engines and biofuels, battery electric vehicles (BEVs) are leading the way in commercial trucking due to their established technology and decreasing costs. Regulators worldwide are implementing strict emissions targets, encouraging truck OEMs to invest in various technologies. BEVs and hydrogen fuel cell electric vehicles (H2-FCEVs) are the only options with zero emissions, while hydrogen internal combustion engines (H2-ICEs) are gaining attention as eligible for emission-reduction targets. BEVs have higher upfront costs but long-term operational savings, while hydrogen vehicles offer faster refueling times. The industry is investing heavily in battery technology to improve charging times and efficiencies, making BEVs increasingly competitive in the commercial truck market.