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The truth about electric cars (in education / technology / ) by Bill — 2019-04-22

From: Anonymous

See Electric-Cars...

At a neighbourhood BBQ I was talking to a neighbour, a BC Hydro executive. I asked him how that renewable thing was doing. He laughed, then got serious. If you really intend to adopt electric vehicles, he pointed out, you had to face certain realities. For example, a home charging system for a Tesla requires 75 amp service. The average house is equipped with 100 amp service. On our small street (approximately 25 homes), the electrical infrastructure would be unable to carry more than three houses with a single Tesla, each. For even half...

Terry wrote:

I don't think the 75-amp requirement is correct. I understand the standard to be on 240 Volts, 30 amp service, similar to an electric clothes dryer. Here is an example on Amazon, where several chargers are listed: Siemens VersiCharge

Actually, since the service is for 30 Amps, the actual draw must be somewhat less. If we assume 240 volts @ 30 amps = 7,200 watts. If we further assume the charging time per month to be: 10 hours per night, 30 days per month: 7,200 x 10 x 30 = 2,160,000 watts = 2,160 kilowatt hours (kWh).

Electricity costs by state. California is $19.44 per kWh. Then I multipled 2,160 kWh x $19.44 and got $41,990 in cost per month. Obviously this is not correct. Are any of you interested in finding the error?

From: Anonymous

Mistake is probably in price of kwh, probably closer to 19 cents. See how-much-does-it-cost-to-charge-a-chevy-volt

From: Terry

I just saw an article that might be of interest


permalinkblog versionsimilar posts here... and elsewhere

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