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RE: Canadians Promise Charging As Fast As Refueling For Electric Cars

in #science6 years ago

Sooooo, we are going to see fully enclosed, insulated, completely automated recharging stations?

Because comparing the energy in gasoline to the energy in a battery isn't a comparison. Its like comparing a big Jerry Can of Gas with a tiny drink box of electricity. This is the reason why electric cars do not have the range.

Now, charging at home is usually done over several hours with cables that normally you use for your oven or dryer.

So, to charge in 5 minutes, the voltage and/or the amperage must be increased. By 5 hours / 5 minutes. So, 60 times.

60 x 120 V = 7,200 volts (don't have any metal anywhere nearby.)
60 x 30 amps = 1,800 amps. (your main panel on the house is 100 amps)

So, unless you see people in full rubber suits, and cables the size of your arm (plus insulation) nothing like what is being claimed is happening.