Less is always more when it comes to electric vehicles.
The latest news is that doubling the voltage of commercial charging infrastructure – from 400 to 800 volts – will “reduce” the time it takes to instill a partial recharge to “only” about twice the time it takes to refuel a non-electric car to full.
Italicized to emphasize the usual dishonesty of presentation when it comes to “news” – always glorious! – about electric cars. In this case, the attempt to equate the time it takes to refuel most any non-electric car to full with the time it takes to put a partial charge in an electric car – using commercial infrastructure that doesn’t exist – without explaining to the marks that if you only get a partial charge, you’ll be recharging again and soon.
That means even if 800 volt charging facilities were hey, presto’d! into existence tomorrow, reducing the time it takes to partially recharge an EV to “just” 10 minutes, it would be the equivalent of putting a perhaps a quarter-tank of gas in a non-electric car (enough to go about 100 miles) which would take less than five minutes in the non-electric car.
And then? If you’re driving the partially charged electric car?
You stop, again.
But it’s “only” another ten minutes!
Which makes 20, total. And these 20 aren’t at home, which means it’s more than less because you have to add in the time it takes to get to the “fast” charger – and then get home – because no homes can “fast” charge an electric car at 800 volts or even 400 as they are not set up to handle that kind of load. Neither are the neighborhoods and outlying areas, where it would be be necessary to re-wire everything to make this “work.”
And it’s not even the same 100 miles as it would be if we were talking about partially fueling a non-electric car.
Because in an electric car, it is necessary to always have sufficient reserve charge available to account for the varying range of the EV. Which may go considerably less far than the “100 miles” of hypothetical range instilled, depending on such things as the weather (very cold or very hot) which are factors that have very little effect on the range of non-electric cars – because gasoline doesn’t lose energy when it gets colder or hotter.
What if the putative “100 miles” of partially charged range is only 80, in fact – because it’s 26 degrees outside and that plus running the heater has reduced it by 20 percent? This happens, commonly. But it’s not common knowledge because it’s not reported and explained to the marks being cattle-prodded into the Wonderful World of Electrification – where they will pay twice as much for an electric car that goes half as far on a full charge – and which will make them wait either much longer or much more frequently.
Italics, again, to really make the point.
Even if given he benefit of many doubts, a partial charge is not a full charge, is it? That that means you will be stopping again, sooner. Just as you would have to do if you never filled up your non-electric car’s tank to full but instead only put a quarter of a tank in at a time.
If you have to “fast” charge twice in one day, using the not-yet-hey-presto’d 800 volt commercial recharging architecture that isn’t available except in a very few industrially wired areas, then you are spending twice 10 minutes at the least – i.e., 20 minutes – to get less than what five minutes would cost you once, with a non-electric car.
And if you don’t want to stop more than once each day then you’ll be obliged to organize your day around the much longer wait it takes to instill a full charge at even the “fastest” charger, which can’t charge your battery pack to full, “fast” because of the heat and attendant fire risk. This is why “fast” charging to “full” is in fact about 80 percent full. Which means if you want 100 percent charged – and the full advertised range that’s touted by the manufacturer, you will then have to sit for considerably longer while the remaining 20 percent is slow-charged, so as to reduce (not eliminate) the possibility of damaging the battery or setting it alight.
If there is someone ahead of you, plugged in for his “fast” (and partial) charge then you must add his wait to yours. This will scale in a not-happy way for EV people because the throughput problem will increase the more EVs there are in need of “fast” charging.
A gas station with six pumps can refuel (to full) six cars in about five minutes; in ten minutes, twelve cars – and so on. Throughput is not a problem because refueling non-electric cars to full is fast – and a refueled-to-full car will not need to be re-fueled, again . . . for days.
How about six “fast” chargers? Six EVs can be partially charged in about 10 ten minutes, so the wait for the next six is already twice as long as it would be refuel a gas car to full, once the gas car ahead of you is fueled.
But it is likely there will be more than just one EV in line ahead of you, waiting for its partial charge, because so many EVs were partially charged and now they need to get some more charge, again.
This assumes an 800 volt architecture which doesn’t exist.
And they ask me why I drink . . .
. . .
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