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Skeeter - look up how much electricity it takes to refine oil
The Tesla Thread
- Thread starter wildest_jjk
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As De Lardo says, not everyone will charge at a Super Charger.
What you would need to do is work out the amount of "range" we put in Petrol cars on average per day, then work out how long it would take to put that range into EVs, using average figures for charge time (from 120kW Superchargers down to 240v wall sockets, weighted based on volume).
upgrades have been going on for years and will continue to happen for decades to come.
it's not like evs are some unknown quantity. Pretty much everyone knows they are going to take over, governments around the world are pushing for them.
national grid is playing around with all sorts of ideas. including smart grids using excess battery capacity for those who want to cut there bills. so hardly use your car, or only do 60miles a day. let the grid use your battery pack as storage. set a limit, can even set a time by which it must be fully charged by. These are the sort of things that are already being tested/researched.
want 5min charges there's already batteries in research labs which can do that. wether they make it to mass market is debatable. But battery tech is improving all the time and the one closest to mass production is lithium sulphur.
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Look up how much fossil fuel it takes to generate electricity.
And right on cue we have both the "EVs will take over" and the "in the lab" lines thrown out at once, even after only about 10 posts ago I pointed out how they are the default go to answers for blinkered EV supports that don't stack up.
And right on cue we have both the "EVs will take over" and the "in the lab" lines thrown out at once, even after only about 10 posts ago I pointed out how they are the default go to answers for blinkered EV supports that don't stack up.
oh no, saying tech evolves, saying that evs are going to slowly grow.
there is absolutely nothing wrong with that statement at all, and nothing blinkered about it. plenty wrong with what you keep saying.
technology isn't going to suddenly stagnate. even lithium ion batteries have been increasing in power density year on year.
is the ICE no more efficient than it was when first invented.
I think you need to step back and actually understand what your talking about.
Battery density has little to do with charge speed. And saying things like "they have batteries that can charge in 5 minutes in the lab" is an entirely worthless comment without context. What batteries? How big? For a Tesla battery to charge 170 miles of range in 5 minutes would mean delivering 720kW of power into it over 5 minutes. The heat involved in that would be immense! Are you saying that is technology that exists?
Not really, no. They're only about 40% efficient or something stupid aren't they? Its all heat and noise.
Battery density has little to do with charge speed. And saying things like "they have batteries that can charge in 5 minutes in the lab" is an entirely worthless comment without context. What batteries? How big? For a Tesla battery to charge 170 miles of range in 5 minutes would mean delivering 720kW of power into it over 5 minutes. The heat involved in that would be immense! Are you saying that is technology that exists?
Not really, no. They're only about 40% efficient or something stupid aren't they? Its all heat and noise.
I don't think it's that simple though, and I don't think it's fair to say that "the average numbers can't change much", because the way an electric car is used and recharged will be very different. Realistically it'd need an entire study dedicated to it (if there hasn't been one already) to examine usage and differing driver behaviour, you can't simply replace 'petrol' with 'electric' and assume the same figures apply.
haha so mpg hasn't more than doubled. ok.
I know full well what I'm talking about, did I say density has anything to do with charge speed.
it is however clear you have no idea what is happening, there are so many batteries in prototype stage, ie working models, that have significantly better density 2-10x, significantly faster charging and significantly longer charge cycle lifespans. some of these batteries even have all three.
in the mean time standard lithium ion is fine for most people and every year their density increases.
you do realise heat is to do with efficiency yeah?
and yes such batteries exist that can be charged extremely fast. some through chemistry others engineering. there's q whole host of ways charging can be sped up.
I know full well what I'm talking about, did I say density has anything to do with charge speed.
it is however clear you have no idea what is happening, there are so many batteries in prototype stage, ie working models, that have significantly better density 2-10x, significantly faster charging and significantly longer charge cycle lifespans. some of these batteries even have all three.
in the mean time standard lithium ion is fine for most people and every year their density increases.
you do realise heat is to do with efficiency yeah?
and yes such batteries exist that can be charged extremely fast. some through chemistry others engineering. there's q whole host of ways charging can be sped up.
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What you continually ignore is that we are already at the capacity of what the grid can sustain. Home chargers of 3 to 7kW, public chargers of 22 - 50kW, and Super Chargers of 120kW.
You can make the chargers smaller and denser, but unless you can put energy into them quicker they aren't going to charge any faster.
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potentially none - in the future, that's what's so appealing. good luck powering your combustion engine by solar power.
but all your arguments about the generation of electricity are null and void if the electricity is used to convert one fossil fuel into another fossil fuel to burn in a 20% efficient internal combustion engine.
don't mind while I ignore your comments, as you go from no knowledge to I know they aren't doing it fast enough, in a couple of posts.
think back 30 years and remember how much the uk and the world at large has changed.
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Evidence?
If you took the time to see where I stand on this you would have seen that I think the ICE is at a dead end. Electric motors are the way forward.
I have no issues with powering my car with electricity. I have issue with generating it and then sticking it in a massive battery that I lug around with me and charge slowly.
Most homes in the UK have up to around a 100 amp electricity supply that will sustain a 3kW or maybe a 7kW charger. Possibly 11kW if your lucky, but 11kW chargers aren't readily available for home installations.
Changing that would mean widespread development to the National Grid.
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There's no magical weightless battery at the moment, so it's implied.
Yep, the electricity feed into my house is the same one that was installed 30 years ago...
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Who said you have to change it? It only has to charge fast enough to cover daily mileage - which it already does.