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A large truck will not be able to use a CCS charger even at 800v for under an hour. The Tesla semi look to be using a special connector with 4 parallel DC conne
by SigmundA 5y ago
A large truck will not be able to use a CCS charger even at 800v for under an hour. The Tesla semi look to be using a special connector with 4 parallel DC connections while a CCS2 is only a single pair.
Your going to need a Megawatt for reasonable charge times, CCS tops out a 400kw at 1000v and 400amps with liquid cooled cables and connectors.
BTW a diesel truck pump puts out about the equivalent of 6 megawatts after efficiencies are normalized.
- gambiting 5y agoLike I said in another comment - commercial drivers have to stop for 8 hours every 8 hours of work by law anyway(in UK/EU), so there's plenty of time for charging. Even at the relatively common 150kW charging speed you're charging 1.2MWh(!!!) Capacity every 8 hours. I really don't think trucks will come with megawatt-hour capacity batteries, but if they do then 8 hours are long enough to charge such a battery with infrastructure that exists today.
- SigmundA 5y agoTesla is claiming "under 2kwh/mile" for their semi. At 2kwh/mile your looking at a megawatt for 500 miles range which is close to an 8 hour drive. There will need to be stall where a semi can park for 8 hours using a charger. Local deliver makes sense also city buses obviously and thats already happening. Long haul will need a lot more charging infrastructure to make sense.