So the current supercharger can charge at 150kW, which takes about 20 minutes for a 50% charge. Lets pretend in the future they can get that down to 50% in 5 minutes, a 4 fold increase. Lets also pretend they can do that by only doubling the power input, not quadrupling it. So that's 300kW per 5 minutes, about the time to fill a gas car. As Edslunch pointed out, the gas stations in Canmore in the summer are jammed with road trippers. There are about 40 pumps on the main strip, I'll ignore the other ones in town for this exercise. So, 40 pumps, convert that to electric, at 300kW each. That's 12 MW of power. This allows 40 vehicles per 5 minutes to get a 50% charge.
For perspective, a home with a 200A service has 48kW potential. Alberta's largest solar facility has 15MW of nameplate capacity. And this is one small town, and ignores all the RV's, semi's etc. Think of all the pumps in Golden, and other places along the TCH. Remember that I also made some big assumptions, like 4x increase in charging speed, a 2x increase in efficiency, and only a 50% charge. This will be a huge challenge of going all electric, so if you think it is coming in 10 years, and petrol is dead, you might want to re-think that. It's also why hybrids make a lot of sense over the short term.
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