Tier 1 Supplier and OEM Company Perspectives on High-Power Charging

Interviews with nine heavy-duty truck OEMs and several Tier 1 suppliers (major component manufacturers) reveal their readiness and plans for megawatt-level charging. As of 2023, out of 13 available Class 7-8 battery-electric truck models in the U.S., only one can accept above 1 MW charging (via a proprietary system); others top out at 125-450?kW [etruc.org]. Nonetheless, two-thirds of OEMs (representing >96% of the NA HD truck market) plan to integrate the new Megawatt Charging System (MCS) by 2030 [etruc.org]. Tier 1 suppliers report that while most are developing MW-capable systems (~1 MW initially), pushing to 1.5+ MW will require advances in vehicle architecture (beyond 1000 V) and improved battery thermal management [etruc.org]. Both OEMs and Tier 1s foresee prototypes of extreme high-power chargers within 2-3 years and urge infrastructure planners to prepare for trucks equipped with MCS in the near future [etruc.org], [etruc.org].