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The cold hard truth about electric vehicles in winter

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471–480 of 549 posts

Re: The cold hard truth about electric vehicles in winter

#471

Earlier quoted context omitted.

The majority of the country doesn't live in an area that regularly gets extremely cold and even fewer people drive 100 miles every other day. EVs are always getting better, and they’re already good enough for most people. I live in an area that does get below freezing, and my car preheats the battery before I unplug it to go somewhere while the cabin warms.

> EVs are always getting better, and they’re already good enough for most people. If they're good enough for only most people, why are they mandating it for everyone?

Nobody is mandating EVs for everyone today.

Re: The cold hard truth about electric vehicles in winter

#472
post #19

Anecdotally last winter, had a Model Y up in maine for a trip home. I arrived at a backwoods house with ~60 miles left. It was around 10 farenheit the next day when I hooked up a 110 volt line to the car. Over the next 30 minutes the mileage dropped to 55 as it took more energy to heat the battery than the line could deliver. I unhooked it and planned to drive 20 miles to the nearest charger, but after 1 mile of trav…

Question: As a consumer, had you done any research or calculations before the trip? Were your expectations realistic?

What strikes me is that people in some markets have unrealistic assumptions about the current battery technology. Spending more money does not change physics.

EV technology is rather good. But there are bad products in the EV market.

This review of the F-150 Lightning is interesting for the surprise of the reviewer that the vehicle isn't fit for purpose. https://www.guideautoweb.com/articles/68882/ford-f-150-light...

(Google Translate is your friend.)

Re: The cold hard truth about electric vehicles in winter

#473

Earlier quoted context omitted.

> That makes absolutely no difference at all. That would be very surprising if it were true, given the very large effect density altitude has on airplane performance (engine and wing).

Over what sort of range of height and pressure? It's just about observable with very light and very aerodynamic aircraft at ground level if you can get them cold enough.

It's well beyond "just about observable". Here's a sample landing distance performance chart: https://www.ascentgroundschool.com/~ascentgr/images/ct80802e...

At -10°C/14°F, with no other adjustments, in the hands of a test pilot, that aircraft will have a ground roll of around 1000' and clear a 50' obstacle and come to a stop in around 1500'.

At 30°C/86°F, with no other adjustments, in the hands of a test pilot, that aircraft will have a ground roll of around 1150' and clear a 50' obstacle and come to a stop in around 1750'.

Flying in and out of 2000'-2500' strips with trees, it's impossible to not notice the performance difference with temperature. Perhaps the pilots who can't notice those differences don't fly into anything other than very long runways, but I don't think very many pilots miss the differences.

Re: The cold hard truth about electric vehicles in winter

#474
post #78
post #26

Earlier quoted context omitted.

Or just more range. If you have 350 miles of range and it drops to 300 in the winter that’s not noticeable for 99% of drivers. We have a 220 mile Nissan Leaf that drops to 180-200 in the winter. We also live in Cincinnati which is a metro area about 75 miles in diameter at the widest span. Most drives are 10-30 miles. The range drop doesn’t matter unless you are doing a road trip. Recharge time does matter more but a…

> For some reason they put a bunch of DC chargers in the city and none between which is the inverse of what you really need. Is there a grid capacity problem in small midwestern towns or did they just get the priority wrong? Likely ROI--Return on Investment. You can predict quite well the usage of chargers in cities from other charger installations. In between, not so much. On my latest trip between San Diego and Aus…

I’ve had a business idea forever: have a chain of truck stops install chargers and things to do while charging like a classic arcade.

Re: The cold hard truth about electric vehicles in winter

#475

Earlier quoted context omitted.

You're hand waving away a lot of things here. People have the expectation of convenience and the current standard is whatever any regular car can do. When things fall short it can be a major inconvenience or even a deal breaker. > It’s far from “a huge pain”. You name "a huge pain" and someone will disagree. Not having a car at all is far from a huge pain but you still have one, even at a significant price.

What, exactly, is being hand woven away? I’m describing the realities of EV ownership. My car is always plugged in and therefore always at 80%. It takes a few hours after returning from a trip to charge it back up, regardless of the weather or other conditions, and the car is warmed up by the time I get into it using remote defrosting. In fact, during this snowstorm, my car always was consistently completely defroste…

I drive a 1972 Toyota Conora in the winter of 1990. One time it stopped and I had to walk to school. I got there late with MY HAIR FROZEN. That was a huge pain. Using a few extra amp hours of green electricity for 3 months a year to charge my 2019 Zoe is not a huge pain.

Re: The cold hard truth about electric vehicles in winter

#476
post #19

Anecdotally last winter, had a Model Y up in maine for a trip home. I arrived at a backwoods house with ~60 miles left. It was around 10 farenheit the next day when I hooked up a 110 volt line to the car. Over the next 30 minutes the mileage dropped to 55 as it took more energy to heat the battery than the line could deliver. I unhooked it and planned to drive 20 miles to the nearest charger, but after 1 mile of trav…

> - would need a heated garage

Yes exactly why things like govts banning ICE vehicles in 2035 is unfair on poor people without homes.

Re: The cold hard truth about electric vehicles in winter

#477

Earlier quoted context omitted.

It’s about -3% change in drag force per +10°C change in temp.

Which is like the same as 60 mph vs 59 mph.

In drag force, yes, but in this case, you are taking the 3% penalty and aren't getting the partially offsetting 1.7% increase in distance per unit time that 60 gives you over 59.

Note that it's 3% per 10°C delta so, for a 40°C swing (say 30°C/86°F summer to -10°C/14°F winter), that's a 12% difference in aero drag force.

Re: The cold hard truth about electric vehicles in winter

#478
post #19

Anecdotally last winter, had a Model Y up in maine for a trip home. I arrived at a backwoods house with ~60 miles left. It was around 10 farenheit the next day when I hooked up a 110 volt line to the car. Over the next 30 minutes the mileage dropped to 55 as it took more energy to heat the battery than the line could deliver. I unhooked it and planned to drive 20 miles to the nearest charger, but after 1 mile of trav…

Better have a gasoline generator with you.

Re: The cold hard truth about electric vehicles in winter

#479
post #217

Earlier quoted context omitted.

> not having a 220v outlet in the garage will be like not having a microwave What about the millions of people who live in apartments and rowhouses?

> What about the millions of people who live in apartments and rowhouses? If they have cars, they have a place to park them, and this place can host a charger. Outdoor parking without access controls may have security issues, but that's true without a charging point, too.

A place where you can’t even park your car outdoors unattended is not a place you want to live in in the first place.

Re: The cold hard truth about electric vehicles in winter

#480

Earlier quoted context omitted.

[flagged]

Not to mention the fact that large portions of the United States are undergoing rolling blackouts right now No, they're not.

https://www.wral.com/25-000-without-power-in-wake-arctic-bla...
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