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N/A - EV range severely affected when cold - sammy1

It is a pity that the other two links are closed as I am learning something new every day re EVs. The attached link is largely quotes from VW but makes interesting reading.

https://www.dailymail.co.uk/money/cars/article-8000271/Does-performance-electric-car-decline-temperature-drops.html

Having read this I wonder why anyone would want the hassle of an electric car.

N/A - EV range severely affected when cold - Meteiro

Performance of all cars drop in cold weather...??

N/A - EV range severely affected when cold - Andrew-T

There are various kinds of battery, but the output from the types I am aware of always falls off noticeably with temperature, probably faster than a combustion engine - which after all does warm up once started.

N/A - EV range severely affected when cold - Sofa Spud

While the article says that range could be reduced by up to 50% in cold weather (presumably VERY cold weather), it goes on to say the typical figure is more likely to be 20-30%. So if your EV has a battery range of 200 miles, that could drop to around 150 miles. Since one doesn't often drive 150 miles without taking a break, this shouldn't be a problem - not in a few years when we have comprehensive network of fast charging locations, anyway. But by that time your average EV will probably have a range of at least 300 miles, giving you 225 miles in cold weather.

Edited by Sofa Spud on 14/02/2020 at 16:02

N/A - EV range severely affected when cold - Terry W

A quick Google gave me this:

Operating a battery at elevated temperatures improves performance but prolonged exposure will shorten life. ... Cold temperature increases the internal resistance and lowers the capacity. A battery that provides 100 percent capacity at 27°C (80°F) will typically deliver only 50 percent at –18°C (0°F).

So the Daily Mail article is spot save that:

  • it almost never gets to -18C (0F) anywhere in the UK - top of Scottish mountains excepted for a few days in winter
  • 50% efficiency is for short journeys from cold. 20-30% loss is more likely for longer runs. Short journeys give more recharging opportunities

So fairly typical Mail reporting and negative responses - an ICE run at -18C for short journeys from cold would be (a) inefficient, (b) subject to high wear rates.

N/A - EV range severely affected when cold - galileo

Performance of all cars drop in cold weather...??

No, cold air is denser so can support combustion of more fuel than warm air. This is why turbos have inter-coolers, and why aircraft will limit take-off weight in hot climates to less than in cooler zones.

N/A - EV range severely affected when cold - Meteiro

Performance of all cars drop in cold weather...??

No, cold air is denser so can support combustion of more fuel than warm air. This is why turbos have inter-coolers, and why aircraft will limit take-off weight in hot climates to less than in cooler zones.

My sincerest apologies, I wrote performance but meant fuel efficiency (hence a comparison of range reduction in principle). Not saying it'd necessarily be 20 to 30% per se, but on short trips (few miles?) where the engine doesn't get warm (EV territory) would it really be any better??

N/A - EV range severely affected when cold - Leif

Performance of all cars drop in cold weather...??

No, cold air is denser so can support combustion of more fuel than warm air. This is why turbos have inter-coolers, and why aircraft will limit take-off weight in hot climates to less than in cooler zones.

I've recorded mpg for my petrol car over the last two years. It peaks at 70 mpg in high summer, and drops to just below 59 mpg in the peak of winter. Even at 5 C the mpg is noticeably improved compared to 0 C. Some of that drop in mpg will be due to using headlights.

N/A - EV range severely affected when cold - Engineer Andy

Performance of all cars drop in cold weather...??

Yes they do, but ICE cars use heat that normally is wasted (and ejected to the external environment) in winter to heat the inside of the car, whereas an EV will have to use extra battery reserves to do so.

As such, the EV will lose considerably more range in winter - I would say around twice as much under the same conditions for the same size of car.

N/A - EV range severely affected when cold - Andrew-T

<< the EV will lose considerably more range in winter - I would say around twice as much under the same conditions for the same size of car. >>

So owners will have to go back to the (very) old days, when one had to 'wrap up warm' for a long journey ..... :-)

Can't see that happening though.

N/A - EV range severely affected when cold - Engineer Andy

<< the EV will lose considerably more range in winter - I would say around twice as much under the same conditions for the same size of car. >>

So owners will have to go back to the (very) old days, when one had to 'wrap up warm' for a long journey ..... :-)

Can't see that happening though.

Nah - they just will have less range. Maybe driving gloves and wearing flat caps whilst driving will come back into fashion again... :-)

N/A - EV range severely affected when cold - daveyjp

Having not read it, I can never understand why anyone does read the Mail.

N/A - EV range severely affected when cold - Bromptonaut

It's a report in the Mail and in absence of the source document I'm sceptical of its accuracy.

The quoted 50% is associated with 'the coldest of conditions'. The article doesn't provide us with a definition of 'the coldest of conditions'. Do we actually experience those conditions in the UK either routinely or at all?

If my car had a range of 150 miles and ultra cold reduced that by 50% I'd still get to work and back.

N/A - EV range severely affected when cold - wrangler_rover
They read the mail because it is tabloid size anc can be read in the toilet cubicle at work!

Getting back to electric vehicles and range, I frequently drive a 285 mile trip to see family members.
The range on an electric vehicle will drop when it is colder because of the higher electrical load taking energy from the battery, examples being: cabin air heater, screen demister and fan, heated seats, windscreen wipers, headlights. I can easily do this journey on less than a full tank in my plug in hybrid, Hyundai Ioniq, with only a drink break and comfort breaks of a few minutes. I fear that with today's technology driving an electric car in winter would mean I have no option but to stop to recharge en route. I can think of better places to have to wait for av EV to charge than a motorway service area.
Maybe service areas of the future will ave to be redesigned to accommodate a charging point at every parking space and additional seating to accommodate the extra people who will have to wait while their car charges.
N/A - EV range severely affected when cold - sammy1

On a hard frosty morning it takes a good 5 -10 minutes to defrost and get going with the car engine running to blast the windscreen, and when going you need to keep the heater on max to maintain visibility. That plus other things such as the heated year screen( a real hungry beast) and other things, Heated mirrors, wipers and you will need heat in the car. How is your EV battery going to cope with this without losing considerable range. The VW guy advises, time your charge so that the battery is still warm when you start up and preheat the car before starting. Also the car will take longer to charge in cold weather. All this doesn't sound very practical to me with your EV parked out in the open on a cold Welsh hillside at 1000ft above see level

N/A - EV range severely affected when cold - Bromptonaut

On a hard frosty morning it takes a good 5 -10 minutes to defrost and get going with the car engine running to blast the windscreen, and when going you need to keep the heater on max to maintain visibility.

I don't demist with the engine running. A bit of warm water does the job in seconds and without pouring out fumes. I drove for 40 years without heated mirrors. The rear screen heat just needs a quick burst to shift internal mist, ice and snow can be scraped or shifted with warm water.

As somebody else said heated seats and steering wheel might be better than trying to heat the air in the car.

If I had an EV I'd probably pre-heat and demist with it plugged into the mains at home.

Not many of us who live at 1000ft AMSL.

The OP is exhibiting the behaviour I've high lighted before; reacting like people do to change at work with cries of it's impossible, it cannot happen etc. Eventually they recognise it will happen and issues are hurdles to be surmounted not roadblocks.

N/A - EV range severely affected when cold - Terry W

EV range is dependant on battery capacity.

The cost of batteries has fallen from $1100 in 2010 to $156 per KWh. Current thinking is that at $100 per KWh they will reach parity with ICE so far as cost is concerned. This is likely to happen within 2-3 years. Current EVs have a typical range of 150-250 miles - in the future specifying a larger battery pack to give 400 miles will be easy.

It is unclear whether the business model to recharge vehicles will be by rapid charging or replaceable standard modules - both are feasible!

In most parts of the country temperatures rarely drop much below freezing - and only then for a few days in a few months of the year. Rarely does the temperature drop below -18C where battery efficiency is seriously compromised.

Those living atop mountains or truely concerned about the loss of efficiency are welcome to keep their ICE - but will probably have to park on the edge of town due to emission free zones, and need to seek out fuel supplies from a rapidly dwindling number of fuel stations.

N/A - EV range severely affected when cold - Engineer Andy
If I had an EV I'd probably pre-heat and demist with it plugged into the mains at home.

Not many of us who live at 1000ft AMSL.

The OP is exhibiting the behaviour I've high lighted before; reacting like people do to change at work with cries of it's impossible, it cannot happen etc. Eventually they recognise it will happen and issues are hurdles to be surmounted not roadblocks.

Not so easy for those of us living in a terraced house or a flat with no charging facility and likely no chance of one at all (cost, security, logistics/planning or all of them). And believe you me, there's a LOT of people in this category.

N/A - EV range severely affected when cold - alan1302

Having read this I wonder why anyone would want the hassle of an electric car.

Am sure people said exactly the same thing when the first ICE cars came available.

N/A - EV range severely affected when cold - Avant

Thank you Sammy1 - this is a different aspect from the threads I closed, so this, arguably more immediately relevant, topic is welcome.

The Mail always exaggerates (to sell copies) but it is a sigificant factor. Two or three times a month either SWMBO or I, or more often both, make a 200-mile round trip from Dorset to see family / friends in Berkshire.

Both of our petrol Audis could do the return trip twice over before needing to be filled up. The best of the realistically-priced EVs, the Kia E-Niro, is generally agreed to have a range of 250 miles or so: enough to do Berks and back on one charge. But if this is going to deteriorate in conditions like this evening, needing wipers, lights, heating and also aircon (which I always have on all the time even in winter to avoid misting up), I can see a distinct possibility of range anxiety on the way back. The only effect on the Audi (the A3 on this occasion) was 46 mpg instead of 50, and some of that was probably due to driving against the westerly wind.

A plug-in could well be the way forward for me next time, but EVs seem to me best suited to people who don't need to do these long trips..

N/A - EV range severely affected when cold - sammy1

But if this is going to deteriorate in conditions like this evening, needing wipers, lights, heating and also aircon (which I always have on all the time even in winter to avoid misting up), I can see a distinct possibility of range anxiety on the way back.

Precisely, Who needs anxiety on todays roads! I suppose you could ask your family for a free charge to get you home! You would only need a road diversion or a complete standstill for hours and you would be knackered and stuck.

I well remember going back some years to winter driving, parked outside on the road facing the right way! you had to display a "parking light" which could drain a battery within 14 or so hours parked. So it was out with the starting handle and getting the compression just right to start. None of these old cars had the electric hungry extras that todays cars have and nobody wants to go backwards if it means they cannot run their car without worrying how much juice they have left! I hope that battery tech improves a lot in the near future otherwise I envisage the battery needing to be bigger than the car!!

N/A - EV range severely affected when cold - Senexdriver

Ah well, we’ve got until 2035 before production of ICE cars ceases. Bound to come up with a solution in that time. Who’s for another pint?

N/A - EV range severely affected when cold - Senexdriver

I only buy premium tyres these days - mainly because I buy new cars which have them factory fitted and I tend to change cars before the tyres need changing. However, in more impecunious days I ran Uniroyals on a Renault Espace and Firestones on a Renault Savannah and both were fine for mixed conditions, mixed distances driving. The Firestones, as I recall, were good for about 18,000 miles on the fronts, but I don’t remember having to replace the Uniroyals. Those two cars were the only cars we had in the family during their respective periods of service so they did supermarket trips, regular ferrying to swimming lessons, band practice, Cub Scout meetings etc, long distance holiday trips and long-ish distance visits to grandparents and other family members.

Tou might consider Firestone and Uniroyal slightly better budget brands - I don’t know - but I would recommend either on my experience of them.

N/A - EV range severely affected when cold - Senexdriver

My apologies. My last post was meant to be under the Budget Tyres thread.

N/A - EV range severely affected when cold - Brit_in_Germany

A couple of points.

Most of continental Europe tends to experience prolonged periods of sub-zero temperatures in winter with -20 C not being uncommon. While not too relevant in the UK, the phenomenon needs to be addressed if widespread adoption of battery cars is to beceome reality.

Electric cars tend to have a pre-condition function so you can warm them up while connected to the electricity supply.

Lastly, if you compare the news articles of the Mail with those of other papers you will note that the content is almost identical.

N/A - EV range severely affected when cold - Terry W

The average length of a commuter journey by car is approx 10 miles. The average school run is almost certainly shorter as schools tend to be more local. These and the local retail park/town centre could be done every day on a single charge once a week.

There are some (a few) in more remote parts of the country - highlands, Northumberland, mid-Wales etc. They may want to hang on to their ICE as long as possible.

So for most people most of the time EV would be entirely adequate if the capital costs match ICE - likely in 2-3 years time. The only real issue remaining (as opposed to simple denial) is charging. A number of thoughts:

  • government could mandate a minimum number of charging points at each workplace car park. Fines for non-compliance greater than the cost of installation.
  • retailers on parks already often provide recharging points. It makes good sense for them to expand availability or customers will go elsewhere
  • local authorities could mandate that all new construction (housing, commercial etc) has adequate recharging facilities. Could also ensure that any major schemes (roads, sewage, water, comms etc) also embed upgraded power.
  • fast chargers in motorway service areas would mean that any journey could be broken at 2-3 hour intervals (150 - 200) miles - coffee, pee, recharge.
  • or technology may simply provide for replaceable battery modules with all heavy lifting by robot.

This is all achievable with current technology if the will is there. Claiming some insuperable difficulty is just plain nonsense.

Edited by Terry W on 15/02/2020 at 11:54

N/A - EV range severely affected when cold - misar

The average length of a commuter journey by car is approx 10 miles. The average school run is almost certainly shorter as schools tend to be more local. These and the local retail park/town centre could be done every day on a single charge once a week.

There are some (a few) in more remote parts of the country - highlands, Northumberland, mid-Wales etc. They may want to hang on to their ICE as long as possible.

So for most people most of the time EV would be entirely adequate if the capital costs match ICE - likely in 2-3 years time.

You seem to have ignored many (most?) car owners who regularly use their cars over long distances for holidays, visiting relatives, sports events, entertainment trips, etc.

For owners with only one vehicle having a car unsuitable for their needs even just a few times per year is a potential issue when considering a purchase.

N/A - EV range severely affected when cold - Andrew-T

<< government could mandate a minimum number of charging points at each workplace car park. Fines for non-compliance greater than the cost of installation. >>

That sounds like an expensive lose-lose for workplaces. Won't win many votes I'm afraid.

N/A - EV range severely affected when cold - Engineer Andy

The average length of a commuter journey by car is approx 10 miles. The average school run is almost certainly shorter as schools tend to be more local. These and the local retail park/town centre could be done every day on a single charge once a week.

There are some (a few) in more remote parts of the country - highlands, Northumberland, mid-Wales etc. They may want to hang on to their ICE as long as possible.

Creating a two-tier, rich & poor system, but paid for by everyone through taxation, all the while ICE vehcile owners get taxed again through the nose at the pumps. Perhaps offsetting this by reducing fuel taxes considerably would help once the ban on new cars comes in. Not sure what to do about vans and HGVs which don't lend themselves to EV systems by virtue of their wieght carrying requirements vs the battery pack size required for decent distance travel.

So for most people most of the time EV would be entirely adequate if the capital costs match ICE - likely in 2-3 years time. The only real issue remaining (as opposed to simple denial) is charging. A number of thoughts:

  • government could mandate a minimum number of charging points at each workplace car park. Fines for non-compliance greater than the cost of installation.

Not every workplace has a) a car park suitable for upgrading (the way it's laid out), b) very few have anywhere enough spaces for the number of people working there using the car to get there, and c) not every firm is awash with cash. Far better to give tax breaks if you're going to encourage firms to install them.

  • retailers on parks already often provide recharging points. It makes good sense for them to expand availability or customers will go elsewhere
  • local authorities could mandate that all new construction (housing, commercial etc) has adequate recharging facilities. Could also ensure that any major schemes (roads, sewage, water, comms etc) also embed upgraded power.

Good luck with that - as someone who's worked in Construction for a good number of years, co-ordination with other trades is poor at the best of times, especially when government departments and councils get involved. Things don't work like clockwork like in the infamous Heineken TV advert (though I wish it did) - quite the opposite in fact.

I mean, how often do you see freshly resurfaced roads dug up within weeks by a utility firm in order to carry out a new installation or upgrade/long-term repair they've been planning for months or more? A lot.

  • fast chargers in motorway service areas would mean that any journey could be broken at 2-3 hour intervals (150 - 200) miles - coffee, pee, recharge.

At present, sales of new EVs account for about 2-3% of all cars sold each year, but far less than that (probably 1% or less) of the total on the road. Now imagine if within 10 years or so that figure jumped to 50%, maybe more.

Where are these firms providing the chargers (we can't all buy Teslas and nor will they continue to put in more and more 'free' charging points at their expense as sales rise) going to fund 10 - 20x as many chargers in that time? I bet they'd start to charge for parking or put the prices up for retailers, which means everyone (again) would be affected, but only those being able to afford to buy an EV.

  • or technology may simply provide for replaceable battery modules with all heavy lifting by robot.

Perhaps, but at present, EVs either incorporate the battery packs into the floorpan structure deliberately to give the car strength, meaning they cannot easily/quickly be removed, or they are taking up valuable space in the underboot area (often raising the level of the boot floor and reducing its capacity significantly) and also are cars with a very limited range.

A step-change in battery technology to significantly increase their energy density would be needed, so the can be placed in areas of the vehicle that can be both easily accessed to 'hot-swap' them and that doesn't adversely affect storage space, ride quality or handling due to their location.

This is all achievable with current technology if the will is there. Claiming some insuperable difficulty is just plain nonsense.

Sorry, but it is patently NOT achievable for all (a few, perhaps) with the current technology available, nor often on the grounds of cost and logistics. Saying so doesn't mean we're talking nonsence, but common sense, but it doesn't mean the issues cannot be overcome with time. I and, it appears, many others here are more of the opinion that those proponents of this are being overly optimistic.

To me, 2035 is way too soon. 2050 - 2060 as a minimum, perhaps a lot longer - to change how homes and business premises is a huge undertaking, especially those of us who live in flats and terraced housing that don't have the space or resources to be able to afford to install charging facilities, never mind the security implications in many areas that have crime/vandalism problems.

N/A - EV range severely affected when cold - Terry W

I have to disagree with your views - although you are of course entitled to hold them.

Perhaps I should have finished with the need for the WILL and the MONEY to make it happen. It may (in my view) become the motive power of choice for an increasing number of city dwellers, two car households, those with on-site charging facilities, local delivery firms (food, courier services) etc. Increasing controls over emissions in city and town centres are unlikely to go away.

Those unable to use EVs (for possibly good reasons) will be an ever smaller number - already 83% of the the UK live in urban areas. It is the 83% who will drive the change, not the 17% who can't or won't.

N/A - EV range severely affected when cold - misar

This is all achievable with current technology if the will is there.

Perhaps I should have finished with the need for the WILL and the MONEY to make it happen.

Your statements are factually correct but out of touch with reality.

It is indeed possible to convert the country from ICE to EV vehicles by 2032, or 2035, or … (watch this space) but that requires the electorate behind it, a government willing to divert a massive proportion of available resources and funds to the task, enormous inconvenience for many people, and ignoring all those "other" vocal environmental supporters who come forward with every infrastructure development in their back yard (think Heathrow and HS2).

That last happened during World War 2. The reality this time is that half the country don't believe the change is needed, an electorate that has no wish to be inconvenienced or pay more tax, a government that believes every problem can be solved by spin, and a PM happy to pluck policies and deadlines out of thin air knowing he will not be around when they fail.

Edited by misar on 15/02/2020 at 15:47

N/A - EV range severely affected when cold - sammy1

Some really interesting points on this. What is sadly lacking is a government strategy or even any sign of a commitment as to charging networks for EV or where the demand for electric is coming from. To announce 2032 as a possible cut off for ICE and hybrids is I think a bit scaremongering and how are citizens supposed to plan with this sort of woolly info. I was hoping BJ would be a bit better than the last lot but nothing seems to have changed witness the shambles of the new cabinet. So HS2 is going ahead and we hear the Chinese have been in discussion presumably before the announcement! Then we have the Bridge, yes the one between NI and Scotland, have they gone completely loopy. The ferries have a job to cross this water and who would want to drive north to Scotland to get to NI and vice versa. Perhaps we will get some sense soon but don't bank on it.

N/A - EV range severely affected when cold - dan86

What about power cuts? You're car is on charge but due to a power cut you go to leave for work in the morning and fund you only have 10% battery. How well does that go down with the boss because you can't get in to work that morning or are going to be 2 hours late.

I know we don't have them regularly like back in the 70s (have been told about this from older relatives) but with 2 seems in 2 weekends like right now with parts of the country being cut off your EV is going nowhere until power is restored.

I'm not against EV'svas for 99% of my journeys maybe 99.9% they will be perfect I'm just being realistic and thinking of the what ifs.

N/A - EV range severely affected when cold - Bromptonaut

What about power cuts?

No petrol at my local Sainsbury last week; how well that might have gone down with boss if I'd been playing fuel light bing?

I might be the older relative who remembers the 3 day week and rota power cuts. There's an argument that capacity for industrial action kept wages up c/p today.

We also had a couple of hours at home with no leccy last Sunday courtesy of Ciara. Probably only second time we'd had a cut that long in 30 years.

But it was on two streets away and Tesco had petrol even though Sainsbury was dry.

N/A - EV range severely affected when cold - dan86

What about power cuts?

No petrol at my local Sainsbury last week; how well that might have gone down with boss if I'd been playing fuel light bing?

I might be the older relative who remembers the 3 day week and rota power cuts. There's an argument that capacity for industrial action kept wages up c/p today.

We also had a couple of hours at home with no leccy last Sunday courtesy of Ciara. Probably only second time we'd had a cut that long in 30 years.

But it was on two streets away and Tesco had petrol even though Sainsbury was dry.

That's my point though you went to Tesco because they had petrol but if the whole area is out of electricity then you're stuffed. Also in the 7 years in this house had a power cut once and that's because an idiot diggingup the road hit the cabel.

N/A - EV range severely affected when cold - corax

How well does that go down with the boss because you can't get in to work that morning or are going to be 2 hours late.

It's already happening with the trains - and not just occasionally either.

N/A - EV range severely affected when cold - dan86

How well does that go down with the boss because you can't get in to work that morning or are going to be 2 hours late.

It's already happening with the trains - and not just occasionally either.

You're right it is happening regularly and I bet employers aren't happy with it either.

N/A - EV range severely affected when cold - Nomag

I'm not a tree hugger but we bought a 3 year old Leaf for purely economic reasons in September. We have covered nearly 6k miles. I can tell you it's range at the moment is 60 miles. This is with heater on all the time. It's set to preheat every morning, what a joy for my other half to get in to a warm car and not have to defrost it. TBH I was totally anti EV but have been converted, it's so pleasant and relaxing to drive and people seem to give way to you. It would if course be useless as our only car. But as a commuter it's perfect. I'm not even going to bother servicing it, just change the brake fluid every 2 years and MOT it...

N/A - EV range severely affected when cold - Big John

My sister in law runs a Nissan Leaf which is perfect for day to day commuting and local activities. A friend of mine has a Hyundai Kona which has a fabulous range and they even use it between Yorkshire and London, I was amazed as to how well this car drives - it goes like stink!

Would I take one of these across Europe - not yet - but it'll soon be normal.

There are a lot of negative comments re electric cars - but love or loathe them they will be normal real soon now

Edited by Big John on 15/02/2020 at 23:12

N/A - EV range severely affected when cold - Engineer Andy

My sister in law runs a Nissan Leaf which is perfect for day to day commuting and local activities. A friend of mine has a Hyundai Kona which has a fabulous range and they even use it between Yorkshire and London, I was amazed as to how well this car drives - it goes like stink!

Would I take one of these across Europe - not yet - but it'll soon be normal.

There are a lot of negative comments re electric cars - but love or loathe them they will be normal real soon now

My biggest bone of contention is that EVs greatest proponents often think they are currently (pardon the pun) the solution to all our problems. They are patently not, as the tech is still early in its development life and is obviously still very much a niche market, especially for those of us living in flats or terraces houses, or who don't have oodles of money to spend buying one or paying £££ to upgrade private parking facilities and underground electrical systems.

Many of us also would not be able to depend on them, as in my line of work, you often have to, at very short notice and on the clock, go to site visits or meetings all over the country, which means that finding and then waiting 45 mins to charge your car and possibly (in winter) again on the way there is not acceptable.

Many people nowadays also have longer commutes and as yet, very few company car parks have charging point spaces only for EVs, and that's assuming you'd get a space anyway.

Horses for course, I think. Maybe in 50 years, perhaps, everyone will be able to have one without problems, but there's still a long way to go.

N/A - EV range severely affected when cold - martin.mc

An interesting thread. Let's hope it doesn't drift into political ranting or bitter arguments about the reality or otherwise of global warming. It would be nice to hear from people who have owned EVs for a few years and can tell us their good and bad points.

Edited by martin.mc on 17/02/2020 at 00:28

N/A - EV range severely affected when cold - Snakey

I’ve been following the EV market with interest over the last few years. When I renewed my car last year I was quite keen to go electric as I have 50/50 motorway and heavy urban commute, and n electric car would be a lot cheaper to run.

However for my 15k budget I could have a 6 month old Honda Civic diesel auto with 500 mile range, or higher mileage Prius or one of several sub 100 mile range smaller cars.

So I bought the civic, I’m in the north east and the only charging points are one or two in supermarkets, or service stations so not much use to me. In the end I think electric cars future lies in being either short urban distance cars and/or specialist cars like Tesla etc which are more focused on performance. This leaves a gap for the ‘normal’ car user, maybe hydrogen fuel cell cars will evolve to fill this gap?

N/A - EV range severely affected when cold - John F

The maximum power of a Nissan Leaf is apparently over 110kW, but I guess only 10-15kW is needed to trundle along at normal speeds. A Citroen 2CV is at maximum power (7kW) most of the time to keep up. So if the heater is blasting out the equivalent of a 2kW domestic fan heater, you are presumably using around 20% of its range just to keep warm.

N/A - EV range severely affected when cold - gordonbennet

Do EVs use deceleration forces to put some small charge back into the batteries, or is that wasted energy as in all non hybrids?

N/A - EV range severely affected when cold - SLO76

Do EVs use deceleration forces to put some small charge back into the batteries, or is that wasted energy as in all non hybrids?

Typically they use regenerative braking which is often criticised for giving a rather odd pedal feel and less progressive braking.
N/A - EV range severely affected when cold - gordonbennet

Typically they use regenerative braking which is often criticised for giving a rather odd pedal feel and less progressive braking.

Thankyou SLO, sensible too and like auxilliary braking on lorries and buses takes a bit of getting used to get the feel of and getting the best from it i imagine.

As for heaters in EV's (posts below), somehow i can't see the young lady who sat for ages at Trowell sat morn running her car engine to keep warm being content with a warm steering wheel and bottom but having to otherwise dress for the winter moors, and calling this progress, any more than the thousands of reps sit for hours on end doing the same, or for even more hours running the aircon on hot days, both of which will consume battery power in short order.

I suspect the same systems as fitted to lorries will find their way into cars as the pressure mounts to force EVs in, namely default engine shutdown after say 2 minutes idle time, the systems are already in place via stop/start, wonder which maker will be the first to remove the disable SS switch.

N/A - EV range severely affected when cold - Bromptonaut

The maximum power of a Nissan Leaf is apparently over 110kW, but I guess only 10-15kW is needed to trundle along at normal speeds. A Citroen 2CV is at maximum power (7kW) most of the time to keep up. So if the heater is blasting out the equivalent of a 2kW domestic fan heater, you are presumably using around 20% of its range just to keep warm.

Is a 2kw fan heater the right comparison?

We use one in the caravan which has considerably higher internal volume than a car and it trips off on the thermostat pretty quickly. I've also seen it argued that EV's can be made to feel perfectly comfortable with a heated seat and steering wheel rim.

Sure there are problems but they're there to be solved not as imaginary hurdles as to why EV's can never work.

N/A - EV range severely affected when cold - Engineer Andy

The maximum power of a Nissan Leaf is apparently over 110kW, but I guess only 10-15kW is needed to trundle along at normal speeds. A Citroen 2CV is at maximum power (7kW) most of the time to keep up. So if the heater is blasting out the equivalent of a 2kW domestic fan heater, you are presumably using around 20% of its range just to keep warm.

Is a 2kw fan heater the right comparison?

We use one in the caravan which has considerably higher internal volume than a car and it trips off on the thermostat pretty quickly. I've also seen it argued that EV's can be made to feel perfectly comfortable with a heated seat and steering wheel rim.

Sure there are problems but they're there to be solved not as imaginary hurdles as to why EV's can never work.

Perhaps, but IMHO (and a lot of other people's) just not by 2035.

N/A - EV range severely affected when cold - Bromptonaut

Perhaps, but IMHO (and a lot of other people's) just not by 2035.

You may be right in which case 2035 will be moved forward. I suspect it's use now is intended to provide an impetus to ensure we get there by the originally planned date of 2040.

As I keep saying don't forget the electric car 15 years ago was the G-Whiz; this technology is shifting fast.

N/A - EV range severely affected when cold - misar

You may be right in which case 2035 will be moved forward. I suspect it's use now is intended to provide an impetus to ensure we get there by the originally planned date of 2040.

I suspect it's use now is intended to improve the green credentials of a PM with no plan or interest in climate change but reassured that he will not be around to take the blame when it all goes wrong.

N/A - EV range severely affected when cold - Engineer Andy

Perhaps, but IMHO (and a lot of other people's) just not by 2035.

You may be right in which case 2035 will be moved forward. I suspect it's use now is intended to provide an impetus to ensure we get there by the originally planned date of 2040.

As I keep saying don't forget the electric car 15 years ago was the G-Whiz; this technology is shifting fast.

The problem is that governments (and their advising teams and 'experts') regularly get it wrong, as was evidenced by Gordon Brown saying loads of people should switch to diesel cars, many of whom should never have done so and the extra pollution has lead to a rise in respiratory ailments and disease.

We too readily jump on bandwagons because they look 'trendy' and virtuous, without considering all the options or issues. All the while, we delay and dither ironically on the decisions that we need to make to generate the clean electricity to power the EVs, or hand them over to hostile foreign powers (China) to build and run.

As much as AOC and Greta (neither whom have any qualifications of knowledge in the field) pontificate about the world ending (now) in 11 years (it won't), we need to think carefully on all these issues before diving headlong into things.

Bear in mind that we were already promised self-driving cars years ago, and they still have a long way to go (an article today came with an admission from developers of the tech that it could be a LONG time before they improved enought to be used everywhere). rarely does any tech get developed on time, even in wartime when the need is greatest, and often a big price is then paid afterwards.

N/A - EV range severely affected when cold - barney100

I expect that EV's will have the same evolution as PC's. When I bought my first Packard Bell desktop it was over £2000 now many years on you can get a computer for a fraction of the price and it's much better. Ev's will probably evolve very quickly and today's offerings will soon be outdated, best to hang on for a long while and see what occurs..

N/A - EV range severely affected when cold - Terry W

All technical advances create initially incoherent mis-matching standards. This is true not just of computers and peripherals - all the following started with a proliferation of sizes and standards:

  • VHS, Betamax, video discs
  • Windows (the winner), Apple, Linux etc
  • Built in cookers and hobs fitting a standard aperture in a kitchen cabinet
  • Wall sockets fit standard dimension boxes
  • Cans of food are the same (few) sizes
  • Smartphone Apple and Android won - the rest lost

The only question is when the technology and standards will converge. There will probably be just two or three dominant providers, of battery packs and software built into a range of different vehicles by several manufacturers.

N/A - EV range severely affected when cold - Engineer Andy

The key for the success (or otherwise) in the coming decade(s) for EVs to become both affordable to buy and run (including the longevity and availability/price of parts) over the long term is:

  1. For battery technology to improve enough that no charging is required in any normal usage circumstances (e.g. in the depths of winter) for approaching 400 miles;
  2. That the batteries take no more space and weight than ICE fuel and are easy (quick/cheap) to replace and charge (no more than 10 minutes for charging to 100%, preferably less) and do not require very expensive kit to do either;
  3. The battery materials are widely available in terms of mining and production and can be easily and cheaply recycled in an enviromnetally-friendly and low labour intensive way;
  4. Charging facilities and Infrastructure are very cheap to produce, buy and install. Planning and tax policies are changed so that both existing (especially) and new housing and commercial properties can invest long term in charging infrastructure, but without needless subsidies being given to already wealthy individuals and firms when they could already charge lower prices. There needs to be proper competition to ensure both high quality products come through and prices come down.

I am personally very wary of just a few large corporations (especially if they are backed by governments, e.g. China) controlling the vast majority, if not all certain aspects of the tech, e.g. battery materials. China has in recent years been effectively 'buying up' much of Africa's (and elsewhere) mineral resources in return for very little (especially when a lot ends up in the hands of dictators or couurpt politicians, officials and business people and not the general population).

We've seen what happens when the software/mobile phone giants get a stranglehold on their sectors - prices go up and people are tied into replacing things early because of deliberate planned obsolescence, sometimes after less than 5 years of a product's life and despite the product being perflectly usable and safe.

Edited by Engineer Andy on 19/02/2020 at 13:56