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General Motors Is Going All Electric

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Re: General Motors Is Going All Electric

#61
post #58

Earlier quoted context omitted.

> The Nissan Leaf is just not competitive anymore, and I see no sign of a newer version of it with better range. Depends on your needs. My Leaf has been incredible. I paid $5k for an older one off lease and it gets me round trip to work/school/running errands for essentially zero marginal cost. People are stuck in an ICE mindset where they can't imagine a car being useful with less than 400 miles range. But the reali…

Random thought of mine is charging becomes less of an issue when the cars range is several multiples of daily use. If say your electric car has 200 miles of range and you drive it 40 miles a day, then it needs to be charged once every 5 days. Which is in line with the US average of 12,000 miles a year. Or 230 miles a week which is about the range of a Bolt or Tesla. Other random thought. Someone that has charging at…

>Random thought of mine is charging becomes less of an issue when the cars range is several multiples of daily use. If say your electric car has 200 miles of range and you drive it 40 miles a day, then it needs to be charged once every 5 days. Which is in line with the US average of 12,000 miles a year. Or 230 miles a week which is about the range of a Bolt or Tesla.

The reason this line of thinking doesn't line up with reality is because of how lithium ion batteries work. Storing your car at a full charge will increase the rate of battery degradation as much as 5x. Similarly, discharging to (or near to) 0% State of Charge is stressful to the battery because you are causing voltage imbalances among the individual cells within each pack. The reality is that most EV drivers keep their cars between 20-80% at all times. This is optimal for battery health and it ends up being the most practical charging pattern for daily use as well.

With gas cars, you are forced to think in terms of "time between fill ups", but with an EV you are constantly "filling up" anywhere you go because it's so seamless to park and charge.

Re: General Motors Is Going All Electric

#62
post #24

Earlier quoted context omitted.

There is very little year over year wear. After a decade or two in a moderate climate you can expect 80% capacity still.

How can you possibly make that claim when the oldest electric-only vehicles are 10 years old? How can you possibly make that claim without knowing the driving patterns of the person you're addressing? What is a moderate climate ? I mean, I'd love to just assume what you said is true (I'm as much as an electric car fan as your typical HN'er), but you're going to need to provide some data to back those claims up.

Go to the Tesla forums. You can estimate 10 year degradation rate based on the 5 year rate.

Moderate climate probably refers to not having many freezing or >100 temp days.

Re: General Motors Is Going All Electric

#63
I am very impressed that GM decided to do this. I realize that this is apples and oranges. Cars are all different and each model has to be certified in all he different countries. But my first thought (besides "Awesome!") when Elon musk announced his mars plans was that it's amazing he wants to do all this in less time than car makers are able / willing to ditch fossil fuels. Good to see GM on the right track.

Re: General Motors Is Going All Electric

#64

I'm impressed that the American car companies have embraced electric technology so quickly. I'm also disappointed that the Japanese companies are falling behind. The Prius was a very innovative car when it was first released 20 years ago (that's right, the first Prius was a 1997 model!), but it is falling behind. The Nissan Leaf is just not competitive anymore, and I see no sign of a newer version of it with better r…

In London street lamps are being converted into EV charge stations for kerbside charging:

http://www.independent.co.uk/environment/london-street-lamps...

Re: General Motors Is Going All Electric

#65
post #4

I recently bought an inexpensive electric (Ford Focus Electric 2017), and I can't imagine going back. No gas stations, no oil changes, no transmission failures, no engine breakdowns, no timing belt, no transaxles, overall less costs even energy wise. Also it's got amazing pickup and can beat guzzlers off the line (I've edged out Mustangs, but I haven't gone head to head with a Porsche). So I have to charge every day…

Similar experience. Bought a used Leaf and the simplicity and convenience makes me resent using my petrol banger. My commute is only about three miles, so it only needs charging once or twice a week.

Re: General Motors Is Going All Electric

#66
post #62

Earlier quoted context omitted.

How can you possibly make that claim when the oldest electric-only vehicles are 10 years old? How can you possibly make that claim without knowing the driving patterns of the person you're addressing? What is a moderate climate ? I mean, I'd love to just assume what you said is true (I'm as much as an electric car fan as your typical HN'er), but you're going to need to provide some data to back those claims up.

Go to the Tesla forums. You can estimate 10 year degradation rate based on the 5 year rate. Moderate climate probably refers to not having many freezing or >100 temp days.

Yes, estimates, not certainties.

Thanks for proving my point.

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