telstarbox
Established Member
Well it's EV Eve for me as, partly encouraged by you lot, I've taken the plunge on a used ID3 which I'm picking up tomorrow. Excited for the brave new world!
It would be great if they made that the charging port...that would confuse people!
Hope you enjoy. I'd never want to go back to ICE, hopefully you'll feel the same.Well it's EV Eve for me as, partly encouraged by you lot, I've taken the plunge on a used ID3 which I'm picking up tomorrow. Excited for the brave new world!
As other have said, the numbers you've arrived at are fantastical because you've gone wrong somewhere on the back of your envelope.I remember doing a back on an envelope calculation a few years ago....
Basically I took the amount of Diesel/Petrol that was sold each year and worked out the total energy contained.
Multiplied this figure by about 0.35 to get amount that's used to convert to useful kinetic energy. (but waste heat here is very useful in the winter for vehicles)
If you assume EV will replace all that petrol and diesel the UK electricity grid installed capacity would need to rise from 70GW to about 200GW, this also assumes that each vehicle is charged adaptively (i.e. to smooth out charging peaks)
I am still not sure where the extra 130GW of installed capacity is coming from?
When you do the same calculation with the Domestic Gas Supply and if this heat has to be derived from Electricity Supply, assuming its not just generated from Gas! The figures for the UK Grid head north of 500GW, which IMO is totally unrealistic.
No, this is all wrong. Petrol and diesel is about 10kWh/l. A small efficient car might do 10 about 10 miles per litre, so the ICE manages about 1 mile per kWh.National Grids assessment on capacity needed for EVs: Busting the myths and misconceptions about electric vehicles
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So if you say a newish petrol car is averaging 45mpg, and you take National Grids figure of each gallon of petrol uses 4.5kWh to produce, then an existing petrol car is already sitting at 10 miles per KWh. A modern EV is typically 3 miles per KWh, however some can achieve 4 miles per KWh.
You won't regret it! There's no way of ever go back to anything with an engine.Well it's EV Eve for me as, partly encouraged by you lot, I've taken the plunge on a used ID3 which I'm picking up tomorrow. Excited for the brave new world!
This is referring to amount of electricity used to refine crude oil to petrol, before it even touches the car.I'm not sure what "gallon of petrol uses 4.5kWh to produce" is even referring to?
Yes the calorific values for petrol and diesel in kWh are in my later post.Petrol and diesel is about 10kWh/l
Ok, well it was a confusing post and all we can really conclude is that your calculations contain either conceptual or arithmetic errors. The electricity used to refine petrol and diesel is not part of the calculation for the aggregate electrical demand of a fleet of EVs, for example.This is referring to amount of electricity used to refine crude oil to petrol, before it even touches the car.
Yes the calorific values for petrol and diesel in kWh are in my later post.
The calculations I did in post #5544 match yours so I think we are in agreement. Electricity used in refining is not part of the demand of an EV fleet, but does effect overall demand on whole grid.Ok, well it was a confusing post and all we can really conclude is that your calculations contain either conceptual or arithmetic errors. The electricity used to refine petrol and diesel is not part of the calculation for the aggregate electrical demand of a fleet of EVs, for example.
Google tells me 47bn litres of petrol and diesel are sold in the UK. That's approx 470TWh of energy. As a rule of thumb EVs require one quarter the energy input of ICE. So that's 118TWh, or an average of less than 15GW.
That's well within the headroom of the grid - electricity demand has dropped by around 20GW since the late 90s peak. Of course it won't be an even 15GW, the vast majority of charging will happen at night due to vehicle use patterns and economic incentives from energy suppliers, just like today, which means most of this additional demand will be at night, when there is less load on the grid anyway.
Refining fuel for road vehicles only counts when there are IC vehicles to burn the fuel. In an EV context, it doesn't at all.Electricity used in refining is not part of the demand of an EV fleet, but does effect overall demand on whole grid.
Are there any? It needs someone with access to the actual documents to be definitive, but as mentioned before salary sacrifice usually involves a notional salary before the sacrifice which things like pensions are calculated on.
The small print of the salary sacrifice scheme has to be studied, the reduction in salary may force a reduction in the employers yearly contribution into the employees pension pot, impacting the final value of the pot at retirement and lower income in retirement.I do hope those drivers opting for a salary sacrifice scheme have been advised of the long-term effects upon their pension.
Not that I have any statistics to support this - but isn't it reasonable to suppose that the number of non-EVs is falling at whatever rate alongside the increase in EVs?I was listening to a discussion yesterday about the fitting of kerbside chargers in Brighton & Hove, it was said that over 6000 of these are being introduced, the major thing that strikes me is how exactly they intend to go about providing 6000+ 'parking spaces' for cars to use them and what those 6000+ spaces are going to do to the 6000+ vehicles that would normally park there, presumably those who have made the decision have considered the downsides and will be happy to see hundreds of empty 'charging only' spaces sitting there unused every day while parking chaos increases everywhere else in the City
I was listening to a discussion yesterday about the fitting of kerbside chargers in Brighton & Hove, it was said that over 6000 of these are being introduced, the major thing that strikes me is how exactly they intend to go about providing 6000+ 'parking spaces' for cars to use them and what those 6000+ spaces are going to do to the 6000+ vehicles that would normally park there, presumably those who have made the decision have considered the downsides and will be happy to see hundreds of empty 'charging only' spaces sitting there unused every day while parking chaos increases everywhere else in the City
Not that I have any statistics to support this - but isn't it reasonable to suppose that the number of non-EVs is falling at whatever rate alongise the increase in EVs?
The street light chargers I've already seen in Brighton aren't implicitly marked for EV owners only, but as more and more people get EVs and more charging points are put in, I suppose there won't be such an issue.
The important thing is probably to ensure there is enough parking so people can find a space. If all roads are packed with cars every day and night, it's going to be a problem (but finding a parking space full stop is going to be a problem, not just finding an EV charging point).
I expect many roads are very busy at night when people come home and near empty in the day, if there are parking restrictions for non permit holders for example. As such, people will likely have no issues charging if they can at least leave their car at home for some of the day. Many people may only need to charge once a week or fortnight.
Bar the hilly bits, Brighton is a decent walkable city with good public transport so I doubt people have such an issue with parking a bit further away.
Bad news - they couldn't sort the V5 so it's currently resting in the dealership.Hope you enjoy. I'd never want to go back to ICE, hopefully you'll feel the same.
The VW iD3 and BYD Dolphin are the key face-to-face competitors in their ZEV segment of the car market, if you considered the BYD, were there reasons for favouring the VW as your choice?Well it's EV Eve for me as, partly encouraged by you lot, I've taken the plunge on a used ID3 which I'm picking up tomorrow. Excited for the brave new world!
I hope you get on with LHD wipers on a RHD vehicle. Only a small issue in the grand scheme of things, but I've been there on a different vehicle and it drove me mad. The windscreen was never clear of water as the sweep threw excess over the drivers side of the windscreen.Well it's EV Eve for me as, partly encouraged by you lot, I've taken the plunge on a used ID3 which I'm picking up tomorrow. Excited for the brave new world!

There is actually a new BYD dealership within walking distance of my house and I popped in for a look. They only have new or preregistered ones at the moment. I opted for an approved used ID3 as I thought it would have ironed out any teething troubles at this point, and the build quality and environment seem slightly better. I can see the BYD ones selling well though.The VW iD3 and BYD Dolphin are the key face-to-face competitors in their ZEV segment of the car market, if you considered the BYD, were there reasons for favouring the VW as your choice?
Very nice indeed.I chatted with a wonderful genial gentlemen this morning at my local farm shop; the proud owner of the attached (t's an Aston Martin Vanquish 2025 model). He is very much in the ICE camp - and, as he's in the autumn years of his life, I say good luck to him.![]()
I'm puzzled when people "in their twilight" acquire such vehicles, an acquaintance, beyond three-score years and ten, "I want a Supercar", high on the list a Ferrari, at the dealership, his bubble burst, having wriggled into the drivers seat, he could not wriggle out again, the salesmen had to provide physical assistance, he did buy a high-performance car, but not a Ferrari, and a car he could enter and exit with a degree of grace.I chatted with a wonderful genial gentlemen this morning at my local farm shop; the proud owner of the attached (t's an Aston Martin Vanquish 2025 model). He is very much in the ICE camp - and, as he's in the autumn years of his life, I say good luck to him.![]()
Since the forum is about the feasibilty of ZEVs, have you considered the feasibilty of spending your pension upon a high-performance ZEV such as the BYD Seal dual-motor AWD? The dual-motor Seal has a power delivery equivalent to north of 500bhp, check the youtube videos for drag-race sprint acceleration , BYD Seal vs Supercars, where the Seal eats exotic cars for breakfastSo top of my list at the moment (I've still got 2 months) is either a Bentley or BMW.
BMW's are 2 a penny round here, so that puts me off, so a Continental GT is looking a possibility.
My wife's car is a manual and with cable hand-brake. When I am in the front passenger seat and her driving, she spends a lot of time telling me to move myself...!I had a 911 in my 40's and being another 6 foot 6 ex rugby player found it a nightmare, not only getting in and out but using 5th gear, mind you my Wife's Sportage is just as bad to exit..
No I hadn't but i'm going to spend the afternoon investigating (with the cricket on in the background).Since the forum is about the feasibilty of ZEVs, have you considered the feasibilty of spending your pension upon a high-performance ZEV such as the BYD Seal dual-motor AWD? The dual-motor Seal has a power delivery equivalent to north of 500bhp, check the youtube videos for drag-race sprint acceleration , BYD Seal vs Supercars, where the Seal eats exotic cars for breakfast
You're quite right, I hadn't initially realised that.The Hyundai Ioniq 5N might be a better option for the enthusiast, but all electric performance cars are focused more on acceleration than top speed
I suspect there is a bit of a harder ceiling imposed by the fixed reduction gear between the motor and the wheels. The gear ratio must be a compromise between acceleration off the line and ultimate top speed. But the torque curve is such that these cars get to up to speed much faster than the top speed stat would suggest.There doesn't seem to be much of a market right now, but the limits are often just done in software to maintain efficiency (and not skew WLTP range etc). Some car makers unlock more motor power for a fee, and I'm sure in time we'll see more cars with higher limits, or the ability to increase the top speed with the usual warnings (for those wanting to go on a track, or the German autobahns).
When petrolheads eventually migrate, I am sure they'll be doing all sorts of conversions. It must be much easier to increase power on an electric car than ICE.