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> You’re not going to believe me, but: you can literally just charge an electric car with a 120V outlet. This is probably not viable for the majority of people
by Rebelgecko 3y ago
> You’re not going to believe me, but: you can literally just charge an electric car with a 120V outlet.
This is probably not viable for the majority of people. The median commute in the USA is 41 miles round trip. Depending on city/highway miles and driving style, you're looking at 10-14kWh that you need to replace. On a 120v outlet you're looking at 1kW-1.5kW depending on EVSE and your house's wiring, so the window is going to be something like 7-14 hours of plug-in time just to offset your commute. Run some errands, go out for dinner with friends for a few hours, and the battery situation quickly gets dire for the average person (keep in mind that 50% of people have even longer commutes than that!)
(edit: 120v charging is also fairly inefficient, so your 1kw charger may only deliver 800w. I didn't incorporate this in my #s)
A lot of people with shorter distance commutes are also going to be in urban areas, where condos/apartments are more common and you can't just plug into a random 120v outlet safely/legally (some municipalities have legalized running extension cords across the sidewalk but I don't think this is scalable- imagine an apartment building with 100 extension cords running from the street into people's windows).
I think we're a long way from EVs being usable for everyone (although I think EVs are also viable for a lot more situations than people expect- it's just dependent on factors like proximity to L2/L3 charging, whether or not you can charge at work, etc)
- Robotbeat 3y agoYou’re at home 12-15 hours per day, and with all the pure BEvs you can get today, you can buffer over the weekend too. 1.2kW gets you 14.4-18kWh. 4 miles per kWh is common for Tesla’s most popular Model 3 and Model Y, and improvements are coming. So 58-72 miles per day and more on the weekend. Much more than enough for the average commute, and you can buffer 250-400 miles. And if you need more, just use Superchargers. Overall you’d STILL spend less time at fast chargers than typically used for gas stations. Plus destination chargers and charging at work. This works much better than you might think if you’ve never tried it yourself.