Electric car charging ratesantiduhMarch 10 2009, 15:44:45 UTC
So, assuming my car has 25% eff, my car uses 575.5 MJ to actually move the car (wind resistance, rolling resistance, etc), and presumably would be the approximate amount of energy an electric car would need to fill up.
To charge that in 5 minutes at a 'gas station', that'd be 575.5 MJ / 5 minutes == 1.92 megawatts.
To push 1.92 megawatts over a wire means I'd need a 10kV cable carrying 192 amps, or a 100 kV cable carrying 19.2 amps.
For a point of reference, 1 inch is the minimum safe working distance for a 10 kV line. 100 kV -> ten inchs. And you thought 120V shocks were bad..
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To charge that in 5 minutes at a 'gas station', that'd be
575.5 MJ / 5 minutes == 1.92 megawatts.
To push 1.92 megawatts over a wire means I'd need a 10kV cable carrying 192 amps, or a 100 kV cable carrying 19.2 amps.
For a point of reference, 1 inch is the minimum safe working distance for a 10 kV line. 100 kV -> ten inchs. And you thought 120V shocks were bad..
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