EV Charging Feasibility
Comments focus on calculations of electric vehicle battery capacities, daily energy needs, charging times, power requirements, and whether typical home or public infrastructure suffices, often referencing Tesla models.
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Math does not work here: 8h x 2kW = 16kWh. Tesla has 60 or 100 kWh batteries. It only works if you take only short trips (like commuting to work) and never go below 70% of charge.
Tesla semi is almost triple that (around 900kWh) and charges to 70% in 30 minutes with their megawatt charger. So it should be able to easily handle that use case.
Well weight is 110x normal EV, but range is 30x less. So about 220kwh?
The rate doesn't actually matter. Over time and with a large pool of users it all averages out. Whether you charge fast or slow, your EV still consumes the same number of watts per day/week/month to cover your driving. (5A is about 600 watts, which is like having a space heater running: Not a small load.)
"You need a minimum 3 phase 480v electrical source to charge even a small battery in under an hour. We are talking 150-200Kw?"The Tesla 3 Long Range AWD has a 76 kWh battery with a range of 358 miles (576 km). The average European car drives 18,000 km/year, or 72 km/day or 10 kWh/day with Tesla's efficiency.If everyone has giant EV pickups with 200kWh batteries driving 500 miles every day, yeah you have a problem. But that's the tiny minority.
even if he fully charged the car from 0 to 100% every day, that isn't half of 200kwh
EVs can go to 12kw but don’t need to. At that rate a Tesla will add over 40 range-miles per hour, which means you’d recharge the entire battery range in about eight hours. Some people do drive 300 miles per day, but on average people drive less than 30 miles (in the US) and maybe 40km/day in Europe. When you work this out into a continuous power draw over the course of a day, it’s a few hundred watts per vehicle. Still requires grid upgrades and some planning to avoid spikes where everyone
Assuming rather low 50kW charge rate thats at least 87.5kWh of energy. Thats 500km of highway range. Assuming more average 75kW rate - 130kwh or almost 900kms. And you are claiming you done this in one day?
Indeed, but you'll need to be able to supply the current. Tesla superchargers are the exception; other than them, 50kW is the max you'll get.For cars, having twice the capacity with the same charge speed would be enough, since you can charge slowly when you sleep, what matters is that the car can handle the distance you can travel in a day.
charging a car is ~20kwh a day, not 150