Reply to post: Re: 50 miles???

Electric vehicles won't help UK meet emissions targets: Time to get out and walk, warn MPs

Jimmy2Cows Silver badge

Re: 50 miles???

So how many 250Kwh superchargers can we hook up to the grid before it melts?

The grid can barely provide the electricity needed now, never mind with enough chargers for everyone to use without queing for hours.

How about where the extra electricity for all these 250Kwh superchargers come from? Hopelessly impractical to do that with local solar, you'd need a 2sq.km field per charger just to replace power used in one hour (8Kwh/sq.m, and that's without access space for maintenance), plus massive batteries to hold that charge (solar panels alone could never reliably deliver the necesary juice without massive overbuild). And that's running at peak efficiency with maximum insolation, so most of the time not anywhere close to the power consumed. So probably double that.

So it's back to a 3-phase grid hookup. Which the grid can only handle more of in relatively small numbers without a massive build-out of new infrastructure - generation, delivery, substations etc.

The only way electric vehicles can achieve massive penetration and every owner can charge when and where they want (i.e. equivalent to a petrol station) is if the vast majority cannot have an electric vehicle. And since petrol/diesel will be banned if the current green politics continues, that means no personal transport for 99% of the populace.

No thanks.

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