I'm just about to jump across to an EV. The best explanation I've heard about charging speed was to imagine the charging like a car park. When it's empty it's easy to find a space, but as it gets fuller it takes longer to find the empty spaces.
The best analogy of charging I have seen was i have seen was imagine your battery was a 50 gallon drum that you are filling with a fire hose but you can't spill any water so as you approach the top of the barrel you have too restrict the flow down to a trickle
Best analogy I've seen is filling up a theatre with an audience before a show. People find their seats quickly to begin with because the place is empty. But as it fills, it starts to slow down as people get to their seats having to climb over others already in their seats etc.
Thank you ever so much for your time for this video..... I am purchasing my first used EV. You've explained it thoroughly. It makes more sense on how it works ......as videos of drivers driving them and speaking on miles per KW. Thank you ever so much.......❤❤
Before I went electric I checked UA-cam channels for information. I was concerned mainly about a good battery, and waited until there was improvement. I did find this channel. Not everything here relates to the US, but there is good general information here. In 2016 I got a 2014 Leaf after my ICE vehicle went to the junkyard. I have done things with it I was told couldn't be done. Another concern was traveling. I didn't care how long it took, as long I got there. I took a non-technical approach. I got Plug Share for charging and Leaf Spy to check on the car. Be informed. This channel is helpful.
Thank you thank you thank you! Clearly laying out the difference between kW and kWh!! Like calling Concrete "Cement!", or Bread "flour." They are different units.
Something you hinted at in the video but didn't quite 100% clarify -- batteries don't charge at the same speed all the way through the charge. They charge at their fastest when they're close to empty; and the further they get to being full, the slower they charge. This is why on road trips, your trip planning tool will try to keep you at the lower end of the battery charge -- so that you charge faster and spend a lot less time charging. And you'll never charge up to 100% on a road trip (unless you REALLY need it to get to the next stop), you'll typically only be charging up 30% to 50% to get to your next charger
Elon Musk once used the an brilliant analogy comparing battery charging to parking a car, he said when the car park is empty it's easy for you to find a parking space but as the car park get near to full, you have drive around and around to find a space and it's the same for electrons trying to find a space to attach too
I’m an ice driver at present but watched a Corsa E driver charging on a 40kw Gridserve charger today. Opposite him were twelve 350 kw Gridserve chargers - all working and none in use. Suggests that there are many EV drivers that need to watch something like this!
It's more complex, quite often the supplier will charge less per Kwh on a slower charger. In your example it maybe that the 350 Kwh charger will be 75p per Kwh and the 40 Kwh charger might be 50p per Kwh.
@@bordersw1239 but if you're going to be a while, grab a bite to eat, have a mandatory break period, etc why not use the slower charger. Just because the corsa is using the slower charger doesn't mean the owner is unaware.
Excellent video. I wish it had been around when I started my EV journey 4 years ago. I’ll be forwarding this to my sister who has just got her first EV.
In terms of charging etiquette, there's only one situation where you should be obliged to move your car from a rapid. If your charge is racing along, by all means continue. If your charge has slowed to a crawl, but there are other units available, feel free to continue If your charge has slowed to a crawl, all units are being used, but nobody is waiting, feel free to continue. If however, your charge has slowed to a crawl, no other units are available AND there are people waiting, unplug and move on. Obviously this is no steadfast rule and you don't have to, but let it be known if you don't move, people are probably gonna call you a selfish tosser.
You seem to be missing the point, that everyone who uses an ev charger, is a customer. It is the customer's prerogative as to how much they charge their car, and if someone else calls them a "selfish to@@er", then that is tantamount to road rage, and is wholly unacceptable.
@@paulhillman400 Behaviour like that isn't exclusive to the EV community my dude. Ever been to the shops and decided to buy a lottery ticket, five people in the queue. Queue moves along fine until that one person in the queue in front of you. And that one person has half their week's shopping they decided to take to the cigarette counter, asks several questions, waps out a roll of old lottery tickets they want the guy to check if they've won. Yes it's an acceptable thing to do as a customer as you're entitled to do it, but people behind you in that queue are also going to think you're a selfish tosser. Do stuff like that when it's not busy. He could've taken his shopping to the main checkouts, he could've saved his massive wad of lottery checking for another day. Much in the same way as an EV driver jumping off a rapid if its busy and there's a queue of cars waiting. Think of other people and don't be a dick. It's not a wholly difficult concept to grasp.
@@davidthornton3346 Customers, as we all are, whether we are purchasing groceries, technology, or fuel for our vehicles ( in whatever form that takes) are entitled to be allowed to complete the transaction without harrassment. As I Previously said, your comment about being called "a selfish to@@er" is tantamount to road rage, if you did it to me you would get a lot more in return than you bargained for. The point that I'm making to you, that you seem incapable of grasping, is that you should always be polite, as you don't know what other peoples circumstances are.
@@davidthornton3346 I don't care whether behaviour like that is exclusive to the ev community or not, it's wholly unacceptable, and that's the end of it.
I'm so glad that someone has taken the time to explain these things, although I can't afford an electric vehicle or access to off road parking for home charging and the infrastructure in this area just isn't there, (one working charge point in the town where I live), but it's nice to know, I will be pushing up the daisies by the time we go fully electric I am going to ask a stupid question as someone who has never owned an electric vehicle, but how do I know how much a kilowatt hour costs on a charger? I will admit to being a dum dum, or as another UA-camr called me, a cabbage, I don't use or know how to use a technical phone, I still use a Nokia, people say that technical phones tell you is that the only way I can find this information out?
In the UK, there is a move to make all commercial car chargers take card and display rates. You can get better rates with the associated app on a modern phone. Also you can get apps to plan long journeys (so that you use the 10% to 80% rate when stopping to charge) and to find available chargers. These apps can come built-in to some cars (Teslas and maybe others).
Great stuff! Love your accent! I sell PV and I can't believe, how many people have problems understanding the difference between kW and kWh. I usually give them the analogy of hp and liters in a petrol tank. And that what many are doing, equals to saying "My car uses 150hp per 100km.".
Great clip, i will forward this to all those people who ask me why it takes so long to fill my electric car, even if its ready to drive away before i am back from a quick toilet break 😮,
One thing we need to mention to beginners, and something that very much tripped me up. Is about those expensive fast chargers compared with cheap home charging. You will hear folk talk about something called range anxiety, but in reality it is usually a sort of economics anxiety. In short, once you get your head round the fact that a lot of your journeys are very cheap, you start to realise that it does not matter that longer journeys cost a lot more because you used a pricey fast charger. Your monthly fuel bill will still be cheap.
One tip I can offer is only charge to what you need when you're away from home, always add a 20% buffer in case of any issues. If you were driving a petrol car and were having to use a motorway station ie expensive fuel, you would only fill up with enough to get you home.
Meh. I fill my tank every time. The difference in cost is not sufficient for me to be concerned with diesel. It varies by like 20p. Electric charging seems to vary by considerably more.
Great video, this kind of information helpd when I am explaining it to people who ask me about my EV experiance. One thing I have also noticed is that the predicted distiance at teh end of each charge on my home charger is different, even when I charge to 100%, as it is with ICE cars. But you don't notice as much. I have an E208 and 100% charge can be anything between 186 and 195. I have solar and when it states it has had 100% charge over night, if I leave it plugged in, which is a very slow charge, it can get up to 205 miles. I switched last August and have no regrets. Keep them coming.
@@Biggest-hz7ng you are right, I don't worry about the differences anymore., I didn't do it very well but I was trying to say it is nothing to worry about.
Very good video Andy. I will be sharing it with family who are thinking of going EV but need a better explanation of charging than I have been able to give them.
The 7.5p is for 4 hours so 28 kwh in the battery and the rest at a higher rate. Pre-conditioning the battery also takes energy from the battery thus reducing your range. In your example rapid charging to 80% would mean only charging to 40 kwh capacity reducing the range by 40 miles
Really useful for a first time buyer I know so many thanks. Could you do/have you done an idiot's guide to installing a home charger in different types of houses. Many people have or buy homes that are not compatible with home charging so it would really help.
Summary * kW = the rate at which energy is delivered * kWh = the total amount of energy delivered / held in a battery * Cost per kwh x the number of kwh delivered = total cost * Fast chargers cost more than charging at home * Miles per kWh is the inverse of kwh (or wh) per mile. * Electric cars charge fastest between about 5% and 60% full and slow down until full * Electric cars will only charge as fast as the car can accept OR the charger can deliver - (whichever is slowest)
A figure that interests me is that one litre of Diesel is roughly 10kWh. This allows one to calculate some great efficiency figures; e.g. 7.5p/kWh (Octopus Energy, the best Utility Co. to ever!) = 75p/litre (compare to £1.50 for Diesel) and at 4 miles/kWh, this gives 40 miles per 10kWh roughly equal to (x4.55l/gallon) 182 miles per gallon. When people cannot comprehend the efficiency of EVs, these numbers help (EVs are around 90% efficient compared to a Diesel engine's approx. 30%) but this makes sense - far less noise, no waste heat and regen braking.
I get 5.7miles per kwh lifetime and 6.7miles per kwh in summer in my model 3 RWD - this works out to 5.1miles per kwh after all charge losses. I pay ($Aud) 8c per kwh to charge my car overnight. = 1.57c per mile. The car I had previously used 7.1l/100km (40mpg) of premium fuel. Premium fuel is currently $2.46 a litre but lets take $2.20 as an average ($10.01) = 25c per mile. I would need to get 637mpg to break even on cost. 5.7miles per kwh = 260mpg equivalent in a diesel, the average efficient diesel gets 50mpg - my EV is over 5times more efficient than an efficient diesel or over 4.6 times accounting for charge losses.
Excellent video for people new to EV's. I have one question off the back of it - apart from charging speed, is there any other benefit of pre conditioning your battery before using a rapid DC charger i.e. reduced charging losses? If the only benefit is speed, I'm quite happy to not use any additional energy heating the battery up to reduce the amount that I need to charge up by - especially with the cost of some DC chargers!!
I like to explain the last 20% slow down to new EV owners like this. You are waiting to fill up your ICE, the car in front stops filling, goes into shop.. But rather than paying & moving does their weekly shop before paying for the fuel. How does that make you feel....
I would prefer we use Mega Joules instead of kWh. With those units an EV would do about 1 mile per MJ if you are not driving for economy. Or if you are European, 0.625 MJ per kilometre. No other reason. I think it would make the mental arithmetic of live journey planning en-route a bit easier. I'll get my coat ...
It's a pity manufacturers don't communicate more about the charging curves to the customers. At VW we receive so many customer complaints about people that are disappointed with the charging power. The brands only display the max power but never the necessary conditions.
Can you do a chat about the different home chargers available? And what to do whilst you wait for a 7kW charger? What are Granny Chargers? Etc, thank you
mmmm you mention being given a charger best suited to your particular vehicle. What happens if you change the model or make of car does this mean yet another charger at a £1000 potentially?
Probably not. Most Home chargers are 7kw and type 2 Connector and most cars can cope with this. But if you had an old Nissan leaf and wanted a charger with an attached (tethered) cable then this would have a different plug type for the nissan - perfect for your needs today but incompatible with other brands. In this case by choosing a charger with a socket not a tethered cable would future proof the choice and mean you only have to change the cable to be compatible for whatever car you have & most cars have the cable required sold with them.
I can charge at 7wk or.. half that I think on my charger (slowly) I don't know what has more losses, ie is it more because it gets hot going at 7 or more because the the charger is on longer if I have it on slow? Make sense?
I don't think 7kW charging is likely to create significant heat losses. I haven't specifically tested it but the consensus in forum discussions is that there is a baseline overhead when charging that you can't get below whether at 7 or 3.5 so my money is on the losses being slightly higher at the lower speed ... but probably so small a difference it's not worth thinking about. (On some cars you can specifically reduce the charging rate at the car ... after all it's the car that limits how much it can take.)
Can anyone please tell me what apps or charge cards I need for travelling from Scotland to England? We haven’t driven our EV much in England so a bit anxious we gonna get stuck due to not having correct payment systems in place! Any help would be amazing!
As someone from the rest of europe I don't really get the Miles per KW to measure efficiency. And it's not because of using miles instead of Km, it's because on most ads, dealerships and so one the metric used is the opposite idea: KW per 100Km. that makes it easier to understand the potential range and to compare between cars because every mile might be different(slopes, highways and so one) but having an average of 100 avoids that bias.
Your reasoning is specious - miles/kWh and kWh/100 km both give an equally unbiased view. Both are giving average figures. The reason for the difference is just that in the UK manufacturers have historically used "miles per gallon" whilst on the continent they have used "litres per 100 km". EV vendors have just gone for the closest parallel. Of course kWh/100 km is a really weird unit to choose. For starters you have "k" on both the top and the bottom of the fraction so it immediately cancels down to Wh/100m. But then why not just go the whole hog and write it in newtons.
Its a shame this is still a relatively technical business but wider adoption and standardised charging stations should make the majority of charging work just fine at any public charger without having to do the maths!
Hi EVM, On charging speeds: Most home charges are 7KW, then there is Fast and Rapid and Granny (of coarse) what are these? Does the slow charging from about 80% to 100% affect all charger types?
“Granny” chargers are run off a standard 3pin plug. They are the slowest charging at around 2.3 kW - best reserved for an emergency backup. Fast chargers are those between 7 and 22 kW. There’s are also usually AC supply and you can connect using your “Type 2” cable. Rapid goes from 50 to 100 kW. There are DC supply and use the CCS connector. Anything above 100 kW is Ultra Rapid, and again uses the CCS connector. Hope this helps
Whether charging at 7kW or 2.3kW 'slow' charging there is only a little tail off close to 100%. There is a bit, around 97% to 98% and the last half percent is below 1kW on mine; it'll vary by car, I expect newer ones than mine with bigger batteries will hardly notice. i.e. don't worry but don't hang around after 98% if you need to go!
Please take this as constructive criticism, as that's how it's meant (I'm an EV owner and enthusiast); I suspect mathematically minded people will love this video and others will find it baffling and think 'well if that's what you need to know to run an EV I'll stick to petrol!'
Q. If you get Smart Home Charge to install based on your current EV, if you change it a few years down the line could the charger be un or less compatible with the new car meaning a change of home charger?
@@worldofcars_ldn It’s the most common question they (and I) get. Which is compatible for my car. All the same but the easiest way to answer is to ask which they have.
@@Biggest-hz7ng I get that the connection type may differ but that can’t be only reason there are so many chargers available and why one is more suitable to your vehicle than any other?! Don’t there just need to know the connection type then?!
As a sit 'on fence' can I ask a question.....did you all buy an ev before or after all the ev fires that have been in tv or paper and how did you feel about your ev ? Did you tell your house insurer if charging around your house ? And if so how much did it increase ? just curious thanks.
Not only Europe there Andy basically the rest of the world besides the UK & US and I'm sure you have international viewers outside the European region such as myself. I use Wh/km as I learned from Bjorn and that is the better way in my opinion not just changing mpg to a mpkWh. The kWh/100km is more like L/100km for the countries outside the US/UK. I will admit much of this is very good, don't the UK have a EV association of any sort who do education for dealers/owners/other stakeholders?? I watched a Model 3 owner on a 50kW fast charger fill it to 100% and the 80-100% took as long as 10-80%, utterly ridiculous. I can see in future Police getting called to a incident let's call it at a charging station, they'll be someone there with a black eye or fat lip or some other thing with their car at 100% and someone else there who literally snapped. Well in the US there was an incident at a Supercharger let's just say it was abit more than a black eye or fat lip as you can imagine thanks to their 2nd Amendment lunacy. Out of Spec has shown actually the fastest way to a destination is charging just enough to reach the next charger and arriving with a low SoC typically almost 0% and charging to anywhere from 40-60% approx not sitting there for over an hour waiting to get to the all important(to the driver) 100% because their mindset is stuck in fossil world.
It's only extortionate in relation to domestic electricity prices but even the worst outcome would be it just ends up costing a bit less rather than a massive amount less as the fuel for any other car. I believe some people manage to arrange a shared usage with someone else locally who has a home charger.
Depends if you want the additional benefits of an EV Quieter, less stressful drive - music sounds great! Lower maintenance costs No worries on ULEZ zones now and future 6 times less CO2, much better environmentally
Sorry but you reversers the explanation you should have had kWh in the left column and kw in the right coulumn in the tight the word you said are true but you are wrong in your presentation 21kwh is not correct it got 21kw of electricity at 7kwh after 3 hours
Is this right ? To get a mpg figure out of your EV, take you miles per kilo watt figure (ie 4 as per your example) and x that figure by 40 to get an electric mpg (ie 160mpg) ??
Top tip, if you dont have a home charger, get a car with a reasonable range eg 150-200 miles. If you get one with 120 or less, and your work commute is 20-30 miles, you will be the guy who is at the charger trying to get it to full charge just to not keep returning to the charger all the time - especially in winter when your range could be less than 100. Also, having a car with a faster AC charge means you can get much more quicker from a non rapid charger
Apple pulls plug on e-car project as Aston Martin delays first fully-electric model after Ford, Mercedes, Audi and VW scaled back plans. Car makers from Mercedes-Benz to Ford are delaying or scrapping further electric vehicles (EVs) as demand slows in Britain and abroad. Volvo remains way off its 50pc target for 2025 and meeting that goal will require more investment, meaning the company is no longer willing to fund Polestar. Why are people ditching electric cars? While bigger batteries allow drivers to travel farther between charges, they also make the cars heavier, more dangerous, more expensive, and worse for the planet. The "range anxiety" that has resulted in massive batteries is another reason EVs don't work as a replacement for gas cars. And they catch fire. A lot.
@@paulbuckingham15 I try not to, but UA-cam keeps thinking I'm interested. I don't know what I did wrong. Having said that, I do need research to keep up with events so I know who to blame when the agenda for no ICE cars and no EVs being available for anybody as the UN and others have us penned in 15 minute cities forever. When that happens, I shall dispatch my attack nuns to administer slaps where they belong.
The whiteboard of truth is back😅 good video for anyone new to EV world, def one to bookmark.
Great content. Well presented. Too many EV channels nowadays are just "show and tell" or "whinge about something". You actually INFORM us.
I'm just about to jump across to an EV. The best explanation I've heard about charging speed was to imagine the charging like a car park. When it's empty it's easy to find a space, but as it gets fuller it takes longer to find the empty spaces.
The best analogy of charging I have seen was i have seen was imagine your battery was a 50 gallon drum that you are filling with a fire hose but you can't spill any water so as you approach the top of the barrel you have too restrict the flow down to a trickle
Best analogy I've seen is filling up a theatre with an audience before a show.
People find their seats quickly to begin with because the place is empty. But as it fills, it starts to slow down as people get to their seats having to climb over others already in their seats etc.
And they burn like a 50 gallon drum of gasoline and the firemen can't use a fire hose
Thank you ever so much for your time for this video..... I am purchasing my first used EV.
You've explained it thoroughly.
It makes more sense on how it works ......as videos of drivers driving them and speaking on miles per KW.
Thank you ever so much.......❤❤
Before I went electric I checked UA-cam channels for information.
I was concerned mainly about a good battery, and waited until there was improvement.
I did find this channel. Not everything here relates to the US, but there is good general information here.
In 2016 I got a 2014 Leaf after my ICE vehicle went to the junkyard.
I have done things with it I was told couldn't be done. Another concern was traveling. I didn't care how long it took, as long I got there. I took a non-technical approach. I got Plug Share for charging and Leaf Spy to check on the car.
Be informed. This channel is helpful.
Your next persona might well be KwH Man after this video. Well explained! Thanks for the upload.
Just joined as a Member (at last). 😊
The One Million mWh Man!
Thank you thank you thank you! Clearly laying out the difference between kW and kWh!! Like calling Concrete "Cement!", or Bread "flour." They are different units.
Something you hinted at in the video but didn't quite 100% clarify -- batteries don't charge at the same speed all the way through the charge. They charge at their fastest when they're close to empty; and the further they get to being full, the slower they charge. This is why on road trips, your trip planning tool will try to keep you at the lower end of the battery charge -- so that you charge faster and spend a lot less time charging. And you'll never charge up to 100% on a road trip (unless you REALLY need it to get to the next stop), you'll typically only be charging up 30% to 50% to get to your next charger
Elon Musk once used the an brilliant analogy comparing battery charging to parking a car, he said when the car park is empty it's easy for you to find a parking space but as the car park get near to full, you have drive around and around to find a space and it's the same for electrons trying to find a space to attach too
There’s a hole in my bucket dear Lisa!
I’m an ice driver at present but watched a Corsa E driver charging on a 40kw Gridserve charger today. Opposite him were twelve 350 kw Gridserve chargers - all working and none in use. Suggests that there are many EV drivers that need to watch something like this!
I do the same thing with my only up to 50 Kw capable i3. I always go to the slowest charger. Somebody else will need that 150 or 350 Kw charger.
It's more complex, quite often the supplier will charge less per Kwh on a slower charger. In your example it maybe that the 350 Kwh charger will be 75p per Kwh and the 40 Kwh charger might be 50p per Kwh.
@@chrishar110 Corsa is capable of 100kw charging.
@@gazza595 Gridserve have one price 79 pence per kWh.
@@bordersw1239 but if you're going to be a while, grab a bite to eat, have a mandatory break period, etc why not use the slower charger.
Just because the corsa is using the slower charger doesn't mean the owner is unaware.
Excellent video. I wish it had been around when I started my EV journey 4 years ago. I’ll be forwarding this to my sister who has just got her first EV.
Great to see no nonsense practical advice from a 'relatable' presenter who has no hidden agenda.
In terms of charging etiquette, there's only one situation where you should be obliged to move your car from a rapid.
If your charge is racing along, by all means continue.
If your charge has slowed to a crawl, but there are other units available, feel free to continue
If your charge has slowed to a crawl, all units are being used, but nobody is waiting, feel free to continue.
If however, your charge has slowed to a crawl, no other units are available AND there are people waiting, unplug and move on.
Obviously this is no steadfast rule and you don't have to, but let it be known if you don't move, people are probably gonna call you a selfish tosser.
You last paragraph tells me that the ev community are such a nice friendly bunch................not.
You seem to be missing the point, that everyone who uses an ev charger, is a customer. It is the customer's prerogative as to how much they charge their car, and if someone else calls them a "selfish to@@er", then that is tantamount to road rage, and is wholly unacceptable.
@@paulhillman400 Behaviour like that isn't exclusive to the EV community my dude. Ever been to the shops and decided to buy a lottery ticket, five people in the queue. Queue moves along fine until that one person in the queue in front of you. And that one person has half their week's shopping they decided to take to the cigarette counter, asks several questions, waps out a roll of old lottery tickets they want the guy to check if they've won. Yes it's an acceptable thing to do as a customer as you're entitled to do it, but people behind you in that queue are also going to think you're a selfish tosser. Do stuff like that when it's not busy.
He could've taken his shopping to the main checkouts, he could've saved his massive wad of lottery checking for another day. Much in the same way as an EV driver jumping off a rapid if its busy and there's a queue of cars waiting.
Think of other people and don't be a dick. It's not a wholly difficult concept to grasp.
@@davidthornton3346 Customers, as we all are, whether we are purchasing groceries, technology, or fuel for our vehicles ( in whatever form that takes) are entitled to be allowed to complete the transaction without harrassment. As I Previously said, your comment about being called "a selfish to@@er" is tantamount to road rage, if you did it to me you would get a lot more in return than you bargained for. The point that I'm making to you, that you seem incapable of grasping, is that you should always be polite, as you don't know what other peoples circumstances are.
@@davidthornton3346 I don't care whether behaviour like that is exclusive to the ev community or not, it's wholly unacceptable, and that's the end of it.
Great way to go over the basics. It is sometimes difficult to remember how it was to not know about EVs.
thank you for this - I can share this with others when asked - also he is a real UA-camr now with sponsorships - well done
An excellent video. Very informative.
I'm so glad that someone has taken the time to explain these things, although I can't afford an electric vehicle or access to off road parking for home charging and the infrastructure in this area just isn't there, (one working charge point in the town where I live), but it's nice to know, I will be pushing up the daisies by the time we go fully electric
I am going to ask a stupid question as someone who has never owned an electric vehicle, but how do I know how much a kilowatt hour costs on a charger? I will admit to being a dum dum, or as another UA-camr called me, a cabbage, I don't use or know how to use a technical phone, I still use a Nokia, people say that technical phones tell you is that the only way I can find this information out?
In the UK, there is a move to make all commercial car chargers take card and display rates. You can get better rates with the associated app on a modern phone. Also you can get apps to plan long journeys (so that you use the 10% to 80% rate when stopping to charge) and to find available chargers. These apps can come built-in to some cars (Teslas and maybe others).
Great info as ever. Had an event for a couple of years and still learning from you.
Great video as usual. I really want to get an EV, Peugeot e208 and Renault 5 are top of my list
An excellent video, it answered many of the questions I had about charging. Thanks!
Great stuff! Love your accent!
I sell PV and I can't believe, how many people have problems understanding the difference between kW and kWh.
I usually give them the analogy of hp and liters in a petrol tank. And that what many are doing, equals to saying "My car uses 150hp per 100km.".
Great clip, i will forward this to all those people who ask me why it takes so long to fill my electric car, even if its ready to drive away before i am back from a quick toilet break 😮,
Loved it.
Just to had that on my country we use kWh/Km for eficiency
One thing we need to mention to beginners, and something that very much tripped me up. Is about those expensive fast chargers compared with cheap home charging. You will hear folk talk about something called range anxiety, but in reality it is usually a sort of economics anxiety. In short, once you get your head round the fact that a lot of your journeys are very cheap, you start to realise that it does not matter that longer journeys cost a lot more because you used a pricey fast charger. Your monthly fuel bill will still be cheap.
One tip I can offer is only charge to what you need when you're away from home, always add a 20% buffer in case of any issues. If you were driving a petrol car and were having to use a motorway station ie expensive fuel, you would only fill up with enough to get you home.
Meh. I fill my tank every time. The difference in cost is not sufficient for me to be concerned with diesel. It varies by like 20p.
Electric charging seems to vary by considerably more.
a sensible explanation
Agreed - great instructional video for a newbie
Brilliant video. Answered a lot of my questions
Great, clear information.
Great stuff cheers for this mate!
Great video, this kind of information helpd when I am explaining it to people who ask me about my EV experiance. One thing I have also noticed is that the predicted distiance at teh end of each charge on my home charger is different, even when I charge to 100%, as it is with ICE cars. But you don't notice as much. I have an E208 and 100% charge can be anything between 186 and 195. I have solar and when it states it has had 100% charge over night, if I leave it plugged in, which is a very slow charge, it can get up to 205 miles. I switched last August and have no regrets. Keep them coming.
The EV GuessOMeter does its best with our inconsistent driving and our varying routes!
@@Biggest-hz7ng you are right, I don't worry about the differences anymore., I didn't do it very well but I was trying to say it is nothing to worry about.
Great video!
Excellent video for new comers to the EV club. Made it a simple to understand one. Well done Andy!
I thought I knew what I needed but you taught me a lot in this video, you explained everything simply and easily well done🎉
Excellent video. I learnt a few new things there.
It never hurts to go over the basics and there is always some little nugget in there, as a little take away.
Very good video Andy. I will be sharing it with family who are thinking of going EV but need a better explanation of charging than I have been able to give them.
Great video!! ⚡️👍
Excellent, concise explanation. Thank you, young man.
Yes that was very well explained. Bob from Kent England.😊
Great video.
Soild information for newbies.
most excellent
Excellent explanation. Thanks for posting.
Great info thanks
The 7.5p is for 4 hours so 28 kwh in the battery and the rest at a higher rate. Pre-conditioning the battery also takes energy from the battery thus reducing your range. In your example rapid charging to 80% would mean only charging to 40 kwh capacity reducing the range by 40 miles
Really useful for a first time buyer I know so many thanks. Could you do/have you done an idiot's guide to installing a home charger in different types of houses. Many people have or buy homes that are not compatible with home charging so it would really help.
informed video
I prefer to use the term 'Unit' instead of kWh.
It helps avoid the confusion between kW and kWh.
1 Unit (of electricity) = 1 kWh.
Liking the questions from beginners on here. Possibly the basis for more videos?
Off topic, but have you seen how cheap new nissan leafs are on autotrader? I know they're not the best but £16k!!!!!
Summary
* kW = the rate at which energy is delivered
* kWh = the total amount of energy delivered / held in a battery
* Cost per kwh x the number of kwh delivered = total cost
* Fast chargers cost more than charging at home
* Miles per kWh is the inverse of kwh (or wh) per mile.
* Electric cars charge fastest between about 5% and 60% full and slow down until full
* Electric cars will only charge as fast as the car can accept OR the charger can deliver - (whichever is slowest)
Pints for £3.96? Direct me to your local!... and thanks for the jargon breakdown
A figure that interests me is that one litre of Diesel is roughly 10kWh. This allows one to calculate some great efficiency figures; e.g. 7.5p/kWh (Octopus Energy, the best Utility Co. to ever!) = 75p/litre (compare to £1.50 for Diesel) and at 4 miles/kWh, this gives 40 miles per 10kWh roughly equal to (x4.55l/gallon) 182 miles per gallon. When people cannot comprehend the efficiency of EVs, these numbers help (EVs are around 90% efficient compared to a Diesel engine's approx. 30%) but this makes sense - far less noise, no waste heat and regen braking.
I get 5.7miles per kwh lifetime and 6.7miles per kwh in summer in my model 3 RWD - this works out to 5.1miles per kwh after all charge losses. I pay ($Aud) 8c per kwh to charge my car overnight. = 1.57c per mile.
The car I had previously used 7.1l/100km (40mpg) of premium fuel. Premium fuel is currently $2.46 a litre but lets take $2.20 as an average ($10.01) = 25c per mile. I would need to get 637mpg to break even on cost.
5.7miles per kwh = 260mpg equivalent in a diesel, the average efficient diesel gets 50mpg - my EV is over 5times more efficient than an efficient diesel or over 4.6 times accounting for charge losses.
@@TB-up4xi Thanks for the Aussie perspective! I hope non-EV drivers are reading this and can start to see just one of the many attractions.
Great and well explained video.
Excellent video for people new to EV's.
I have one question off the back of it - apart from charging speed, is there any other benefit of pre conditioning your battery before using a rapid DC charger i.e. reduced charging losses? If the only benefit is speed, I'm quite happy to not use any additional energy heating the battery up to reduce the amount that I need to charge up by - especially with the cost of some DC chargers!!
Great info. Thanks.
I like to explain the last 20% slow down to new EV owners like this. You are waiting to fill up your ICE, the car in front stops filling, goes into shop.. But rather than paying & moving does their weekly shop before paying for the fuel. How does that make you feel....
I would prefer we use Mega Joules instead of kWh. With those units an EV would do about 1 mile per MJ if you are not driving for economy. Or if you are European, 0.625 MJ per kilometre.
No other reason. I think it would make the mental arithmetic of live journey planning en-route a bit easier.
I'll get my coat ...
Thanks good information.
Great thanks
It's a pity manufacturers don't communicate more about the charging curves to the customers. At VW we receive so many customer complaints about people that are disappointed with the charging power. The brands only display the max power but never the necessary conditions.
i noticed tv energy usage given in kWh/1000h in the shops. quite the detour to get to average watts.
Can you do a chat about the different home chargers available? And what to do whilst you wait for a 7kW charger? What are Granny Chargers? Etc, thank you
They’re all the same tbh. Type 2.
Granny charger is just a 3 pin plug cable.
@@ElectricVehicleMan ...that puts out close to two and half kW.
More people need to pay attention to power and energy units.
Number of people that use units interchangeably is ridiculous.
Reliable home charger - My Zappi is letting me down big time. Engineer coming out soon, I'll see how that goes.
I was going to ask what's the best product to shave my ⚽🏈
mmmm you mention being given a charger best suited to your particular vehicle. What happens if you change the model or make of car does this mean yet another charger at a £1000 potentially?
Probably not. Most Home chargers are 7kw and type 2 Connector and most cars can cope with this. But if you had an old Nissan leaf and wanted a charger with an attached (tethered) cable then this would have a different plug type for the nissan - perfect for your needs today but incompatible with other brands. In this case by choosing a charger with a socket not a tethered cable would future proof the choice and mean you only have to change the cable to be compatible for whatever car you have & most cars have the cable required sold with them.
I can charge at 7wk or.. half that I think on my charger (slowly) I don't know what has more losses, ie is it more because it gets hot going at 7 or more because the the charger is on longer if I have it on slow? Make sense?
I don't think 7kW charging is likely to create significant heat losses. I haven't specifically tested it but the consensus in forum discussions is that there is a baseline overhead when charging that you can't get below whether at 7 or 3.5 so my money is on the losses being slightly higher at the lower speed ... but probably so small a difference it's not worth thinking about. (On some cars you can specifically reduce the charging rate at the car ... after all it's the car that limits how much it can take.)
Can anyone please tell me what apps or charge cards I need for travelling from Scotland to England? We haven’t driven our EV much in England so a bit anxious we gonna get stuck due to not having correct payment systems in place! Any help would be amazing!
When “Fast” AC charging at work the app says maximum 11kW but I can get up to 21 with my Renault Zoe using the thicker cable supplied with the car
As someone from the rest of europe I don't really get the Miles per KW to measure efficiency. And it's not because of using miles instead of Km, it's because on most ads, dealerships and so one the metric used is the opposite idea: KW per 100Km. that makes it easier to understand the potential range and to compare between cars because every mile might be different(slopes, highways and so one) but having an average of 100 avoids that bias.
The mp kWh rating is measured over a lot of miles. The bigger the number, the better it is.
Your reasoning is specious - miles/kWh and kWh/100 km both give an equally unbiased view. Both are giving average figures.
The reason for the difference is just that in the UK manufacturers have historically used "miles per gallon" whilst on the continent they have used "litres per 100 km". EV vendors have just gone for the closest parallel.
Of course kWh/100 km is a really weird unit to choose. For starters you have "k" on both the top and the bottom of the fraction so it immediately cancels down to Wh/100m. But then why not just go the whole hog and write it in newtons.
Plus battery is 400v domestic supply is 240v
Time for tea brb
Its a shame this is still a relatively technical business but wider adoption and standardised charging stations should make the majority of charging work just fine at any public charger without having to do the maths!
I park next to the 85p Instavolt chargers at McDonald’s in protest
Quarter of a pint? I wish. My local is over a fiver.
Hi EVM,
On charging speeds:
Most home charges are 7KW, then there is Fast and Rapid and Granny (of coarse) what are these?
Does the slow charging from about 80% to 100% affect all charger types?
“Granny” chargers are run off a standard 3pin plug. They are the slowest charging at around 2.3 kW - best reserved for an emergency backup. Fast chargers are those between 7 and 22 kW. There’s are also usually AC supply and you can connect using your “Type 2” cable. Rapid goes from 50 to 100 kW. There are DC supply and use the CCS connector. Anything above 100 kW is Ultra Rapid, and again uses the CCS connector. Hope this helps
Whether charging at 7kW or 2.3kW 'slow' charging there is only a little tail off close to 100%. There is a bit, around 97% to 98% and the last half percent is below 1kW on mine; it'll vary by car, I expect newer ones than mine with bigger batteries will hardly notice. i.e. don't worry but don't hang around after 98% if you need to go!
@@peteglass3496 Thanks, that's what i thought, but never bothered to test (normally just do it overnight).
Maybe instead of using water as analogy for kw and kwh, it would have been better to use petrol or diesel?
Please take this as constructive criticism, as that's how it's meant (I'm an EV owner and enthusiast); I suspect mathematically minded people will love this video and others will find it baffling and think 'well if that's what you need to know to run an EV I'll stick to petrol!'
Q. If you get Smart Home Charge to install based on your current EV, if you change it a few years down the line could the charger be un or less compatible with the new car meaning a change of home charger?
No. They’re all type 2.
@@ElectricVehicleMan so why do they need to know the car when choosing?
@@worldofcars_ldn It’s the most common question they (and I) get. Which is compatible for my car.
All the same but the easiest way to answer is to ask which they have.
Most are Type 2, with Leafs being CHADEMO
@@Biggest-hz7ng I get that the connection type may differ but that can’t be only reason there are so many chargers available and why one is more suitable to your vehicle than any other?! Don’t there just need to know the connection type then?!
Kw per KwHR. Why that’s a “per hour”. 1/hr. It’s inverted time.
And it’s absolutely ridiculous.
Cheers Andy
How does it help you if you don't drive? 🤔
@@harmony3138 I live on this silly planet
As a sit 'on fence' can I ask a question.....did you all buy an ev before or after all the ev fires that have been in tv or paper and how did you feel about your ev ? Did you tell your house insurer if charging around your house ? And if so how much did it increase ? just curious thanks.
You know that petrol and diesel cars are many times more likely to catch fire than BEVs don't you?
However if I used 100 Amps at 400 Volts what would that be in 30 mins?
2kWh (excluding losses). As power equals current times voltage.
@@Biggest-hz7ng correct I just don't like the term kWh. Why does it have to be hours not minutes or seconds or even electrons.
Not only Europe there Andy basically the rest of the world besides the UK & US and I'm sure you have international viewers outside the European region such as myself. I use Wh/km as I learned from Bjorn and that is the better way in my opinion not just changing mpg to a mpkWh. The kWh/100km is more like L/100km for the countries outside the US/UK. I will admit much of this is very good, don't the UK have a EV association of any sort who do education for dealers/owners/other stakeholders?? I watched a Model 3 owner on a 50kW fast charger fill it to 100% and the 80-100% took as long as 10-80%, utterly ridiculous. I can see in future Police getting called to a incident let's call it at a charging station, they'll be someone there with a black eye or fat lip or some other thing with their car at 100% and someone else there who literally snapped. Well in the US there was an incident at a Supercharger let's just say it was abit more than a black eye or fat lip as you can imagine thanks to their 2nd Amendment lunacy. Out of Spec has shown actually the fastest way to a destination is charging just enough to reach the next charger and arriving with a low SoC typically almost 0% and charging to anywhere from 40-60% approx not sitting there for over an hour waiting to get to the all important(to the driver) 100% because their mindset is stuck in fossil world.
watt hours/mile seems a pretty silly metric in my opinion.
I would kill for a sensible EV like that Seat Mii, some grand cheaper than the needlessly posh VW eUP.
I’d love a small EV but can’t charge at home and the impression of public charging costs being extortionate doesn’t really make it a viable option.
It's only extortionate in relation to domestic electricity prices but even the worst outcome would be it just ends up costing a bit less rather than a massive amount less as the fuel for any other car. I believe some people manage to arrange a shared usage with someone else locally who has a home charger.
@@MrAdopadoThere are apps and sites including co-charger to help you find charging points nearby.
Depends if you want the additional benefits of an EV
Quieter, less stressful drive - music sounds great!
Lower maintenance costs
No worries on ULEZ zones now and future
6 times less CO2, much better environmentally
@@bloodynorahvan2203 I agree with all you have said,the worry is the cost of charging without a home wall box.
@@andyn6266 have you thought about something like the Co-Charger app? Residential chargers available in your area perhaps at much better rates?
Just filled my ev with a hosepipe, it didn’t like it
I hope this isn't too northern.
Sorry but you reversers the explanation you should have had kWh in the left column and kw in the right coulumn in the tight the word you said are true but you are wrong in your presentation 21kwh is not correct it got 21kw of electricity at 7kwh after 3 hours
Is this right ?
To get a mpg figure out of your EV,
take you miles per kilo watt figure (ie 4 as per your example) and x that figure by 40 to get an electric mpg (ie 160mpg) ??
There is no mpg for EVs. Its meaningless. There is miles per kWh. If you want to compare v ICE , use cost per mile.
Hello mate
Top tip, if you dont have a home charger, get a car with a reasonable range eg 150-200 miles. If you get one with 120 or less, and your work commute is 20-30 miles, you will be the guy who is at the charger trying to get it to full charge just to not keep returning to the charger all the time - especially in winter when your range could be less than 100. Also, having a car with a faster AC charge means you can get much more quicker from a non rapid charger
😂
Sorry I think you're overthinking this
apology accepted
Electric Vehicle. Abbr EV. Pronunciation Eee-Vee. Description. Mobile Firebomb
What a stupid thing to say! Do some research.
@@DavidPlayfair Sorry .Immobile Firebomb
@@Biggest-hz7ng What do Firemen bring to a burning EV?
Marshmallows.
Apple pulls plug on e-car project as Aston Martin delays first fully-electric model after Ford, Mercedes, Audi and VW scaled back plans. Car makers from Mercedes-Benz to Ford are delaying or scrapping further electric vehicles (EVs) as demand slows in Britain and abroad. Volvo remains way off its 50pc target for 2025 and meeting that goal will require more investment, meaning the company is no longer willing to fund Polestar. Why are people ditching electric cars?
While bigger batteries allow drivers to travel farther between charges, they also make the cars heavier, more dangerous, more expensive, and worse for the planet. The "range anxiety" that has resulted in massive batteries is another reason EVs don't work as a replacement for gas cars. And they catch fire. A lot.
@@nelsonclub7722on very long sticks !.
Why are you Electric Vankers so bloody dull?
Dont watch then, same as I don't watch Mc2@ and Gimp Buys Cars.
@@paulbuckingham15 I try not to, but UA-cam keeps thinking I'm interested. I don't know what I did wrong.
Having said that, I do need research to keep up with events so I know who to blame when the agenda for no ICE cars and no EVs being available for anybody as the UN and others have us penned in 15 minute cities forever. When that happens, I shall dispatch my attack nuns to administer slaps where they belong.
Excellent video.