- Joined
- 7 Jan 2010
- Messages
- 13,122
- Reaction score
- 3,081
- Country
What happens to all these batteries when they are spent ?
How long have private diesels got left?
- Thread starter Brigadier
- Start date
Sponsored Links
Once the batteries are too worn out for electric cars they can be used for static purposes.
Nissan think they'll get about 20 years out of them. At that point they can be recycled.
https://www.google.com/amp/s/insideevs.com/news/351314/nissan-leaf-battery-longevity/amp/
Nissan think they'll get about 20 years out of them. At that point they can be recycled.
https://www.google.com/amp/s/insideevs.com/news/351314/nissan-leaf-battery-longevity/amp/
My friend's 1964 Rover 100 P4 is exempt from ULEZ. The answer is to get a 55 year old classic if you regularly drive in the zone.
Will LPG still be viable for older petrol cars?
Sponsored Links
B
Brigade77
As an IC engine fuel vegetable oil ticks all the green boxes, yet they seem to have actively discouraged its use . . . .
- Joined
- 31 Oct 2019
- Messages
- 1,423
- Reaction score
- 225
- Country
Don't forget the bigger the battery the heavier it is, so any range gain is negated by the motor having to haul the battery that powers it.
Can you imagine the size of the battery required to power a motor which is hauling a fully laden hgv?
S
sodthisforfun
Apart from all the forests they'd have to flatten in order to grow crops for oil and the impact on the environment that has... so, no, doesn't really tick all the green boxes.
The Tesla Semi is going to be around 1MWh (give or take), which means the battery alone weighs in at about 5-6 tonnes. Which is a lot.
However putting twice the weight into a vehicle doesn't half the efficiency. Getting up to speed is harder but keeping it moving isn't much more work.
What's really mind boggling is the rate you'd need to charge an EV HGV. To do that in an hour you're talking well over 1MW peak power.
B
Brigade77
That's right, we couldn't possibly grow enough crop to replace road fuel with vegetable oil. Yet we are totally ignoring the fact that we cannot generate enough power to charge these batteries, or distribute it to the points where it's going to be needed.
We're also blissfully turning a blind eye to the environmental damage that the mining of the metals required for these batteries does to our world. But that's OK 'cos it's mostly done in poor countries . . .
There are about 11kWh in a litre of diesel (although fuel efficiency in a vehicle is only about a third)
So have I calculated right that 1MW is 90 litres equivalent? Before adjusting for efficiency?
Well we can, that's just putting in more power stations, nuclear or wind turbines. The grid isn't that worried about it
https://www.nationalgrid.com/group/case-studies/electric-dreams-future-evs
I don't think many people are blissfully happy about it, but it isn't great in a lot of places. Cobalt is probably the worst part, theres a lot of effort going in to replace it in batteries. In part for humanitarian reasons but also because it's expensive. Go market capitalism!
Good question, but I'm too lazy do even try doing the sums.
In a car you get somewhere between 220 and 370 miles out of 100kwh, which taking the worst of those numbers would be equivalent to a 37mpg car (comparing I pace to f pace) comes out around 25 litres. So 1MWHr should roughly equal 250 litres.
But that's a fairly inefficient EV, so perhaps closer to 400 litres equivalent.
Edit: that was a stupid way to try to calculate it. Tesla recon they can get about 500miles from 1MWh, or about a fifth to an eighth of a car.
Last edited:
- Joined
- 31 Oct 2019
- Messages
- 1,423
- Reaction score
- 225
- Country
Hhhmmmm Siemens don't appear to have put an estimated cost of installing the lines and feed for those lines, nor a cost of the trucks.
Or what happens if there is a power cut or some numpty steals the cables , will the trucks have enough juice to cope?
How long would it take to complete such a mammoth project and how would it be implemented?
You couldn't buy one of those electrified trucks as they start to install the lines as they wouldn't have the range to cope so that means before any one started using the lines there would have to be a massive outlay of cost. (Tax payer?)
And I'm pretty sure this system is already in place .... Let me think....... Oh yeah a railway!
Could the German railway be used to carry trucks? Be a lot cheaper
The railways use the track as the "Neutral" the road systems have to be twin overhead wires.
My concern would be the public having easy tresspass access to the road and the cables overhead. Railways are better protected against tresspassing,
Sponsored Links
