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Chinese EV maker BYD says new fast-charging system could be as quick as filling up a tank
(www.theguardian.com)
this post was submitted on 18 Mar 2025
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Stuff I've heard on naysays:
"The battery will blow up!!!!!"
No, it won't if it's a solid state battery - solid state batteries barely even notice such a charging rate, their temperature might change by half a degree from this monster charging rate.
"You can't supply the power because lines"
Modern large commercial buildings already suck down this amount and more.
"The grid overall can't take 1MW"
So, the 1,000 MW nuclear reactor can't provide 1MW? How about a reactor station with 4 units cranking 4000 MW? How about we add another 1000 in renewables? How about another 800MW with a single gas turbine? How about adding roof solar and a battery bank below ground for the charging station to supplement the power? We haven't even touched hydro or geo yet. Making power is not a problem, and we'll build out the power as we need it.
What about defects in the machine or car? Could that lead to people being struck by lightning coming from the box next to their automobil?
Fairly unlikely, we engineer things to fail safe.
Even if so we have ways to calculate the power going in and coming out, and if there's an imbalance kill everything, that's how gfci and arc fault breakers work.
If the insulation doesn't insulate, that is a risk indeed. There would probably have to be some detection mechanism for damaged insulation on top of regular maintenance checks. I don't know if some wiring in the insulation could measure the integrity. Maybe if the voltage would oscillate regularly, picking up on the induction of those changes might allow detecting if the shielding is inconsistent before it actually becomes threat? I only have half-remembered bits of an intro course on electrical engineering years ago, so maybe I'm way off.
Gas powered cars catch fire all the time
There's some parts inbetween. You would need an extra line just for the charging stations.
Though, a capacitor bank (maybe where the fuel tank was) would be viable.
And how mamy cars in said building? How many will be allowed to charge at the same time? Should we expect same grid for large commercial buildings and rural charging stations?
If there's literally one place in America we need to throw money at, it's the electrical grid.
We have a decades out of date power infrastructure, Europe especially has us beat.
Just like electrification originally, and later the internet, increasing power delivery will have benefits for everyone that pay off for centuries .
Mostly we need to make the grid far smarter.
Evs should be allowed to load coordinate with the grid, so they switch on at the optimum times for grid stability in exchange for major discounts on power.
A superload like this one should have to request clearance, then the grid compensates by reducing 'cheap ev power' in the area, while also requesting evs configured for v2g to be ready to possibly supply.
The supercharger has a slightly higher cost per kwh to make up for this, but that is the cost of convenience.