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Re:Toyota CEO Says “Silent Majority” of Auto Industry Is Dou... by mrtksn on Monday December 26, 2022 @11:05AM (#34138790)
Can someone put numbers in this? At glance:

1) Energy density of EVs is quite low, which means efficiency is lost on carrying giant and heavy batteries around.

2) Electricity consumption must meet the electricity production at any time and that's why providing energy during national events is a challenge because people start and stop energy consumption through things like water heaters at the same time. Charging a single EV typically requires power equivalent to something between 50 to 200 kettles, it can't be that easy to provide that kind of power everywhere - right?

Re:Toyota CEO Says “Silent Majority” of Auto Industry Is Dou... by mercutio2 on Monday December 26, 2022 @11:42AM (#34139253)
50 to 200 kettles? That’s wildly off.

A typical kitchen water-boiler uses 1.5kW. My EV, when charging at home, charges at 5kW.

If you have to do a fast charge because you’re on a road trip, you might choose to accelerate battery degradation by charging at 50-200kW, but that’s the rare and expensive exception to the rule.

What’s hard about national events is that historically power generation hasn’t been good at load following. If you know you’re going to charge 2 million EVs every night, there’s very little load following needed, it’s a steady load.

It’s still a lot more energy than current grids can supply, so there’s no doubt that more production and transmission is needed, but the engineering to achieve this is not some radical departure from current techniques.

Re:Toyota CEO Says “Silent Majority” of Auto Industry Is Dou... by mrtksn on Monday December 26, 2022 @11:54AM (#34139370)
Really? Are fast charger use an exception? If so, why people make a big deal of Tesla's charging network?

What about people who don't live in detached private houses? Are they exception too?

Re:Toyota CEO Says “Silent Majority” of Auto Industry Is Dou... by fomine3 on Monday December 26, 2022 @07:26PM (#34143448)
Supercharger should be considered as a exceptional method to charge, but people focus on it.
Re:Toyota CEO Says “Silent Majority” of Auto Industry Is Dou... by mercutio2 on Monday December 26, 2022 @09:05PM (#34144176)
Once or twice a year, when we go on a long road trip, it’s a great sense of security to have superchargers everywhere. Fast chargers for other vehicles or much more unevenly distributed, and they’re liable to just not work half the time.

But all of this only matter when we’re driving more than 200 miles from home, or doing a day trip somewhere more than 150 miles. Which for my family is just not very frequent.