22kW fast home EV charging - what is it, can you have it, and is it worth it?
ฝัง
- เผยแพร่เมื่อ 5 มิ.ย. 2024
- Many drivers understandably want the option to charge their electric car as fast as possible. This means installing a 22kW fast home charger - but the vast majority of UK properties are actually unable to support a charger this powerful.
In this video, our editor Danny Morgan explains what three-phase EV charging is, what you need to have a fast 22kW charging at home installed, and he also gives his verdict on whether it's actually worth all the hassle in the first place.
Timeline
00:00 - Intro
00:54 - What is three-phase charging?
01:55 - Can you have three-phase charging?
02:05 - What do you need for three-phase charging?
03:00 - Your car determines charging speed
04:30 - Is it worth it?
06:11 - When is three-phase charging useful?
#fasthomecharging #22kwcharging #evcharging
----------------------------------------------------------------------------------------
For more information and advice on electric cars and electric car chargers, as well as charger installation, visit:
Website - www.smarthomecharge.co.uk
Instagram - / smarthomech. .
Twitter - / smarthomecharge
Facebook - / smart-homech. .
We compare, sell and install electric car chargers. As a Government OLEV-approved installer, we operate nationwide with a team of in-house engineers, technicians and advisers. And let's not forget our very own editorial team who bring you the latest news and reviews in the world of electric cars. - ยานยนต์และพาหนะ
*If you'd like more updates, advice and guides on EVs and charging, then you can follow us.*
_Follow our editor Danny Morgan on Twitter and Instagram:_
twitter.com/D_Morgs
instagram.com/dmorgsev/
_And you can follow Smart Home Charge:_
instagram.com/smarthomecharge/
twitter.com/SmartHomeCharge
Compare home EV charge points and find guides on everything related to EV charging at www.smarthomecharge.co.uk
Almost all new properties in the UK now are being supplied with 3 phase. Octopus go is 5p per kWh between 00:30 and 04:30; therefore if you had 3 phase at 22kWh charging, you would consume much more of the cheaper rate. I expect the companies will cull these lower overnight rates when most people start using 22kWh. We are probably 5-10 years from that however.
Hi Herbert - is that really the case? Can you point me in the direction of where I can see evidence of most new UK properties being fitted with three-phase please? I don't doubt you, but I've heard the exact opposite in my conversations throughout the industry.
Many thanks!
Danny - editor at Smart Home Charge
Having 3 phase charging can be beneficial if you are on a tariff such as Octopus Agile as it allows you go get the maximum charge during the cheapest times of the night.
Completely agree there, Clive. That is another good reason for 22kW. But, again, we'd say it wouldn't be worth installing just to make the most of Octopus Agile. Yes, it would be beneficial, but the costs of getting three-phase infrastructure would outweigh any potential savings from Agile. Of course, if you already have a three-phase supply then that's no issue.
@@SmartHomeCharge Yeah, if only we had 3 phase power :)
@@SmartHomeCharge what about 7kw
22kW is rather convenient and I still have 11kW left over for the second car, or all three cars at 11kW each, or any mix (it is all sorted out by Easee)...
That is one great "bonus" I got after switching from pure electric house heating to wood pellet heating instead.
No, I do not live in the UK.
I retro fitted 3 Phase into our UK Home.
Now have a 1x7 kW Wall charging from Storage Batteries & Solar Array. 2x22 kW Wall chargers which are Grid tied.
The bit you missed is Smart Meters and cheap night time tariffs. With 3 Phase we can now charge 27 kWh home battery, and two cars at 11 kW, plus the house... all at cheap rate electric without load balancing.
Thanks for watching. Your setup sounds impressive, but I think that sort of investment is out of reach for most.
We were also addressing the specific question of whether you need a 22kW charger for an EV, rather than the wider context of batteries and solar. For EV charging alone, 22kW is very rarely required or worth the cost in our view.
Thanks again for watching
Danny - editor at Smart Home Charge
@Smart Home Charge I can add to that. Originally we were on a looped supply. This had to be removed by the DNO (in our case Western Power), I explained our future hardware plans and that we wanted 3 Phase. After weeks of negotiations they agreed to do it for free. The main reason being they had to dig up the road anyways, and the cable cost was negligible compared to Single Phase.
Charging at cheap rate overnight costs me 7.5p per kWh. So a full charge costs £6 ... compared to £27 at peak rate... compared to £56 public charging.
So the very best return on investment is charging as much as possible during cheap rate periods. 3 Phase allows this on both cars, and home storage at once. It's a serious cost saver and adds up to serious cost savings
@@JustMeTalking Totally understand the benefits of off-peak energy use. It's something we preach everyday at Smart Home Charge to help our customers save on car charging.
You're very lucky the DNO did your upgrade for free, so your setup makes total sense. However, it's still a significant investment to get there. I'd love to myself and I fully understand all the benefits as I already charge my EVs off-peak. But myself and most others simply don't have the capital for a £6-10k plus investment in solar and batteries. Even if the ROI is much shorter nowadays, you still need the cash and that will mean the tech is out of reach for most currently, which is a shame.
@Smart Home Charge ... it is a shame I agree. What's worse, it appears the hardware costs have doubled in the last couple of years, so it's even harder now. World has gone mad.
I've calculated that since moving away from Gas, Petrol & Diesel... our electric use has quintupled.
So there's two more BIG problems outside the initial capital cost.
1) National Grid ability to supply a massive increase in Electric to UK Households
2) National Grid ability to upgrade the cabling infrastructure to all the UK Households that need it.
... and that's just dealing with the 65% of homes who have driveways or offroad parking to charge electric cars.
What about the other 35% who have nothing to use except Public Chargers, often in inhospitable areas especially at night... and don't have the time to sit in their car for an hour.
Really good explanation. Tells you all the reasons why a 7.4kw is enough for home charging.Thanks very much.
Thanks, glad it was helpful!
Danny - editor at Smart Home Charge
unless your car's on board charger supports 22KW, otherwise the most you can get is only 11KW, unless it is Renault Zoe or BYD
DCFC adapter tho
Thanks a lot you helped me a lot making my choice. Everything is clear for me now 😃👍👍💪🏼
It depends if your planning on going ev for the future . Assuming you are staying for the long term , a;ready in the past few years we have gone from 3.6 to 6.6 now 11kw for newest models, top end models such as Tesla s/x and Audi E-tron and Porsche have the option of upgrading the charger to 22kw , zoe models have it built in on most models . So do you need it ? That depends on you and your usages assuming you have a 3 phase supply , first off what can your car take on ac? if your a driver that daily drains your pack and your car is compatible such as a taxi then such a charger is invaluable where plugging in for an hour gives you another real world 50 miles extra range charging goes form 10-11 hours to say 5-6 hours not half (for a completely depleted pack)but most of the time most people just don’t deplete there packs also if you use a smart charger linked to your electric rate for the best rate possible you will find that most top out at 7kw at the moment. So what over options are there why can’t I charge using the dc part. Well you can but it’s stupidly expensive at the moment typically 7-10k , however v.t.g (vehicle to grid) chargers are starting to appear that will offer up to 22kw dc on 3 phase in partnership with network operators to shift peak load off or use for your home as a big battery backup charge cost are stupidly expensive , these are better used is such Scenarios such as a staff car park or public carpark
Great video - thanks
I dont understand why manufacturers are limiting the ac charging ports and not just standardise them to 22kw
Excellent clear presentation. Thank you.
Glad it was helpful!
Good way of explaining it, given I've only got a 20A feed to my garage, 3.6kW is all I can have! But even with 2 EVs swapping between them works Ok.
Thanks Edward. It can be quite a complex topic, so it has taken a while for me to break it down and figure out the best way to explain it. Glad it was useful.
Thanks Edward, great feedback. We have some charger reviews on the way too!
Thank you a great explanation.
Thanks Johnny, glad it was helpful. If you have any requests for topics we should cover, let us know.
the battery is getting bigger and bigger, 22kW is a must in future
Depends in what situation you mean. Even if the car has the ability to charge at 22kW AC, many homes in the UK cannot supply at 22kW so it is not really a factor here. On the continent, in countries such as Germany, it is more common for properties to have three-phase supply to charge at 22kW - in which case, that's a great feature to take advantage of.
However, I wouldn't say 22kW charging is a necessity. You're right, batteries are getting bigger currently, but energy density is also increasing so I would expect battery sizes to start to level off or come down. Plus once EV adoption becomes mass market, hopefully drivers will realise that they don't really need 100 or 150kWh batteries. Smaller batteries mean lighter and more efficient vehicles, but still with plenty of range.
Will be interesting to see how it pans out though.
Thanks for watching.
Danny - editor at Smart Home Charge
It isn’t size of battery you need to think about but range per charge.
22kw , CAN. FULLY. CHARGE. THE IONIQ 5. In. 3+. Hour,s. THAT. REALY IS WORTH IT ,
I've seen AC to DC inverter chargers.
Great advice.
An excellent video. Answer so many of the question I had. However charging is still a confusing mystery. I paid attention at school about A/C and D/C currents but still never understood them. Now I have to understand them and what my Nissan Leaf can and can't do. This video has explained that it can only charge at 6kw no matter what I feed into it, however what about the Chademo connector? A new Chademo charging point has recently been set up near me, will it charge my Leaf and at what speed???
Videos like this are so helpful Danny, really. Nissan who make the Leaf cannot explain anything in simple terms, e.g. what is a 'granny' cable, what does 'complies with existing infrastructure' mean. Do not buy a Nissan till they learn to speak understandable English.
Keep up the good explanations Danny
Hi Alan, many thanks - glad it helped. In answer to your question, this video is just talking about charging at home. Most electric cars have two charging connections - one for "fast" charging which covers charging at home and some public chargers up to 22kW. These will use the Type 1 or Type 2 connection on your vehicle (depending on which year Leaf it is).
"Rapid" charging uses a different connection entirely and relies on DC charging. This is where the CHAdeMO connection comes in on your Nissan Leaf. If you have the new Leaf then this will allow it to charge at 50kW which means a 10-80% charge in about 40 minutes. There are some much faster "rapid" chargers, but it depends on the vehicle as to whether it can charge at a faster rate or not.
"Granny cable" is just a nickname for the 3-pin plug that usually comes with the car and can be used with a domestic socket - mainly for emergencies.
This video on using public chargers might help. It's a little old and I need to update it but should help: th-cam.com/video/3C9ad9UzX4A/w-d-xo.html
Hope that helps. Feel free to check out www.smarthomecharge.co.uk for more guides too.
Danny - editor
@@SmartHomeCharge Thanks for reply. I have a 2017 Leaf which I believe is known as a Mark II. I got confused when you said that even if you connect the Leaf to a fast 22kW charger the car will still draw only 6kW. Perhaps that is different if the Chademo works on DC current rather than AC?. I have yet to see the new Chademo charge point which is supposed to have been set up near where I live to see if it has a cable attached, if not I have not seen anywhere where I can buy one. Also I think I have heard that a Tesla to 1772 adaptor is available but another thing I have not yet tracked down. Ato at the moment I charge up at home plugging a granny cable into a standard 13amp socket.
I switched to electric when I worked out most journey I was making were under 20 miles, round trip, and the DPF on my old diesel was continually clogging up.
@Alan G200 Hi Alan - Rapid chargers are all 50kW and higher and _always_ have the relevant cable attached to it - you just need to choose the cable that is right for your car (CHAdeMO), just like you would at a petrol pump. You can't buy a rapid charger cable - they are always attached to the rapid charging unit.
Anything between 7.4kW and up to 22kW is considered a "fast" charger. Some public chargers are "fast" chargers and will charge at anything from 7.4kW up to 22kW (if the car is capable). These public chargers do not have a cable attached and you will need to use the charging cable supplied with the vehicle.
In summary, if you plug in your Leaf to a 7.4kW charger at home or a 22kW charger at the shops, for example, it will only draw 6.6kW. This is just down to the design of the Nissan Leaf (Mk2). If you locate and use a rapid charger, it will have the CHAdeMO cable already attached like a petrol pump. Simply plug it into your car, follow the on-screen instructions on the rapid charger and it will charge your Nissan Leaf at up to 50kW.
Some properties are on a shared loop. 22Kw would be rather interesting 😂😂
You can also install a 22kw DC charger which will work on single phase 100A 220/240v circuit and it doesn't need onboard charger support.
Can you? Please send a link,
@@SmartHomeCharge look up "Terra DC wallbox" by ABB. They're not cheap as they have a full transformer in it but they can push 22.5kw to almost all cars.
@@SmartHomeCharge
• Complying with UL standards
• Single phase 19.5 kW @ 208 V, 22.5 kW @ 240 V / 100 A input
• DC output 60 A
• Charging voltage: CCS 150 - 920 V DC, CHAdeMO 150 - 500 V DC
@@MrPhatties Having looked at this charger it requires a 3 phase supply and delivers 22kw AC.
@@SmartHomeCharge no, it's single phase 240v AC in, and 22.5KW DC out. There is a 3-phase version also. Delta also has a similar wallbox.
what about charging at supermarkts they have three phase point and some are free
Well clearly most people can't have 3 phase anything unless they live in commercial grid zoning but then you gotta pay the power company a few $k just to add a transformer just so you can then pay an electrician to bring it into your garage
Hi
Just purchased Range Rover Evouge P300e PHEV
Thinking of installing a pulsar plus or Commander in the Garage
1. House is 3 Phase .
2. We have a 5.5Kw Solar on roof top.
What would you suggest.
Well, with a PHEV there's very little reason to get a three-phase 22kW charger because the vehicle will have a max limit - I suspect the Evoque is limited to 7.4kW but could be even less. It's worth checking.
Otherwise, the EV charging world is your oyster and we have a range of products right here: www.smarthomecharge.co.uk/
So what's the largest single phase amperage and wattage there currently is? I see an 80kwh charger for like 2k, but not sure if it's single or 3 phase. I think tesla goes up to 17kw on ac. Is that the fastest the cars currently accept ac charging before you move up to DC charging?
The most you can get on single phase is 7.4kW 32amps.
80kWh? That would be referring to the size of the battery not the charging rate - kWh is battery size and kW (no h) refers to the supply.
In terms of the vehicles max charging capacity, as I mentioned in the video it varies from vehicle to vehicle. But most are limited to the max 7.4kW a domestic property can supply.
Others, like the Tesla Model 3 can go up to 11kW and others still like the Renault Zoe can go up to 22kW.
Anything higher than 22kW is considered "Rapid Charging" (such as 50kW and 100kW or higher) but this makes use of the DC charging connection that most EVs have (either via CCS OR CHAdeMO)
Hope that helps!
Thanks for watching.
Danny - editor at Smart Home Charge
@@dmorgsev hmm. Yea, clipper creek has some 70/80 kw charger for around 2 grand. So those are 3 phase? I was under the assumption that the only real limit currently was the cars internal ac to dc converter. Not the power supply capped at 7k watts. So say I have a 200 amp service to the house like most people. Is it not possible to simply add a 80 or even 100 amp dedicated circuit, therefore having enough power supply, but waiting on manufacturers to bump up their ac to dc converter amperage?
Home dc to dc would be great, but wayy to costly at this point. Guess I'm thinking of the future with trucks having 200kwh plus batteries. Unfortunately my location is spread out in the northwest, and supercharging stations just aernt close enough like in other parts of the country.
@@phuquetwo I'm talking specifically about the UK, where a three phase supply means 3 x 7kW effectively. That is my understanding but it could be different in the US.
The other consideration is the grid and I'd be surprised if there was any big push for rapid DC charging at domestic properties where it isn't really needed as that would require a lot more power.
DC rapid charging is much better on major routes or in common use areas such as retail outlets/leisure etc.
EV'S ARE RELATIVELY NEW? So, why not all on the same voltage, different amperages I get. Charge point in the same places? One centre back & front! The same Connector? The same on board Charging rate! The choices for AC & DC? The same battery configurations like normal battery powered appliances? Then it is just a case of sizes. Manufacture is always governed numbers for price. Brand use each others Parts! Some Audi, Lamborghini & Porsche parts are interchangeable! Well apart from the price.
Hi there, I do have 3-phase supply and am considering the 22kW home charger. my question is, does 3-phase electricity cost more per kW when fitted at home?
Hi Victor, no your unit price (per kWh) should be the same. Hopefully you've watched the video, but our view is a 22kW charger is rarely needed in most home scenarios. I personally own two electric cars and charge them both up during the week on a standard 7kW charger. It's never been a problem. Charge one EV one night, and swap to the other EV the next.
Of course, your situation and requirements may be different to my own.
You can browse our chargers on our website, and if you do want a 22kW charger then I'd recommend the Easee Charge on our website:
www.smarthomecharge.co.uk/
Danny - Editor at Smart Home Charge
What else if u has charging points at home need out to any social club in space of 90 mins not fit for me is 55 miles return and what the difference between 3 different phases of charging and supermarkets might not stay for different clubs for 2-3hrs supermarkets might limited to fastest time of 5 minutes or face £100 fine on top of charge the EV of 90 minutes stay or some areas of town limit 1 hr no charging points at all of power cut off as well national grid shut off each midnight
Have you considered DC Chargers?
You can't install DC chargers at a residential property, unfortunately - not without tremendous cost anyway and in reality it's not going to open. So, the rate of charge (speed) will always be limited by the incoming supply at the house mains, which is 7kW for most UK homes and 22kW for homes or commercial properties which have a three-phase supply.
Thanks for watching,
Danny - editor at Smart Home Charge
Am sure the cars will come out with faster charging at some point. Ok Tesla can only take 11kw atm but looking into the future it may change….
That may be true, but for home charging the limiting factor will always be the home supply. In the UK, the majority are limited to 7kW AC.
@@SmartHomeCharge Dno have updated me to phase 3 at no extra cost due to neighbour not wanting her side dug up at all & getting some legal letters drawn up.
Thanks for the video. We have 3 phase power to our shed so even though it's unlikely we will be able to use 22kw charging for some time. But I would rather spend a little more money now on a 3 phase charger so that in the future we will be able to get the maximum speed. I am sure cars will start to come with 22kw on board charging as battery packs get bigger. I think the cybertruck will probably come with 22kw charger.
If you have three phase already then it is worth getting a three phase charger if you're willing to pay a little more. It won't hurt and you may benefit in future.
As for the cars, it seems a mixed bag. Three phase at home is more common on the continent but not in the UK. We've already seen some EVs released where the UK version doesn't have three phase capable charging or it is a paid upgrade whereas the French and German versions have the capability built in.
Thanks for watching
Danny - editor at Smart Home Charge
@@dmorgsev that is very interesting to know. Thank you for your reply.
Cars will not come with a 22KW charger on board. High powered chargers are expensive and heavy. The OEM are clearly showing 7 Kw AC and for higher is all DC
LOL, the Tesla supports 22 kW charging now.
In Denmark and most other developed countries we have 3x400 volt in every house ;-)
Cannot say i notice any difference between three and single phase as a domestic consumer apart from three phase costing more to install.
@@roosterbooster6238 I think cost is the same (we use thinner cabel), and we can get 22 kw. EV charging easy, And easy 3-phase motors for compressors ect. Your avantage may be higher current in the wall-outlets, we only have 3000 watt in the standard 230v-outlets round the house. thanks for your video, and sorry for my poor englisch
Consider yourself very lucky ;)
Your list of developed countries excludes most of Europe and all of North America
Higher voltage goes further with less copper.
If you both have EVs and both charge overnight, just get another L2 charger for 200-300 quid.
This is not rocket science!
I have a CHAdeMO-capable Leaf, and I don't even want anything faster than L2; it incurs a penalty on your SOH each time you use it, and - even if we had a second EV - we could have the cars charge at different times to keep the draw more consistent.
(I was hoping you were going to talk about the cost of putting an L3 charger in so I could gloat about my savings.)
Depends on what %SOC You charge up to. If You stay below 80% SOC, fast charging does not degrade the battery more than L2 as it only charges at 45kW up to about 60% during summer and up to about 30% during winter. It also helps to heat up Leaf's battery a bit during winter which is actually desirable. As long as You don't fast charge to a 100% every single time, especially when it's hot outside, it will have little effect on Your SOH. E
@@amconsole All good points...but I still can't put one in my house (both logistically and financially,) and charging at L3 once in a while also breaks off the little stalactites that form, which helps extend the useful life of a battery. Had our Leaf 11 years, only on our second 24kWh (a Lizard,) and still have 71% SOH.
@@stevejordan7275 it’s all anecdotal, of course, but I’m at 569 L3 and 2,5K L1/L2 on my 24kWh lizard battery and still have 82% SOH. Have not observed any negative effects charging on L3, in fact, SOH drop is slowing down, only loosing about 1,5% of health over the last 30K miles (having done on average >100 rapid charge sessions + >350 L1/L2 per 10K mi). I almost never charge past 75% on rapid chargers, especially when it’s hot outside and limit SOC to 80% during summer on L2 as well.
Tesla model 3 takes 22 kw?
Nope - only up to 11kW.
What a crock of carp! My Porsche only has 11Kw on board charger! It's £4K for an upgrade! I've had 3 phase 100amp supply put in! Yes another £4K Why? Because with current supply network & they have to do site & transform/incoming survey! Where I live typical 25 year Old Midlands private housing estate. Only 1 in 10can have 3phase! So, now I can buy the only 44Kw Home charger on the market from CEF @ £13K! Or have a friend build & install a rectifier at cost & charge from that? Now I live in concrete, gravel or tarmac over your front garden country! Yes every one of the 483 houses has a drive & garage/granny flat! Most have at least 2 regular cars, a weekend car & or an RV! The one reason is car insurance is cheaper it park on your drive! Now say you've got his & her EV's. Whoever gets home First plugs in! Second home has to wait! Wait till when? Well economy 7 starts at 11pm or midnight for 7 hours! So First backs time their charging start to suit. So second home has to wait until 2 or 3am to swap the charger over if not shuffle cars for access! Now third car EV owner (still at home child) is out of luck! Don't forget these are the lucky people! Even luckier are the ones with now concrete 4 car drives & 2charges! Why not go the whole & make them twin point! You all come in at the same sort of time, hook up & job done! Until you wake in the morning to find demand was great than Supply! Oh, dear, what a pity, what a shame never mind!
Hi Kevin, thanks for your comments. Not really sure where to start as I couldn't quite follow a lot of what you were saying.
The main point of the video is most people won't need a three phase charge point, especially if it's just one EV. But even in the case of two EVs it will be fine for most people. How do I know? Because I own two EVs (a his and hers as you put it) and have done so for four years. We do average mileage each day and simply charge one car one night, and the other the next day. It works perfectly fine and no faff.
On the rare occasion where we both need to do long drives the next day, we just charge one car as soon as we get home (and take the hit on the peak rates) and the other overnight on the cheap rates.
There will always be cases where it isn't ideal or doesn't work for some people, but this will be rare in my view.
p.s. a quick google shows there are also charge points with twin sockets, while others allow you to install multiple charge points on the same circuit such as the Easee One.
Thanks again,
Editor - Danny Morgan
@@SmartHomeCharge I just got in an hour ago with 27 miles of charge remaining. It sys it will be full charged at 5:59PM tomorrow. She will be home at 20:15. When should I tell her to hook up. She probably done less miles than me. Smaller car smaller battery. But I don't know until she gets here. I have to be gone by 08:00 in the morning. First leg of my journey is 120 miles. Yes I'll have to stop for a wee and a coffee, but 20 mins max! Your saying One 7.3 Kw charger is enough for two cars no Faff as you put it! I like to fully charge at home because slow charge is battery friendly! On the road I time it to 80% I was asking advise as to which is the best way to go Hence Forth! The Home Charger I have is the Wallbox Pulsar Plus. I have had it 4.1/2 years & it is adequate for one car only. Unless you consider 7.2p/Kwh for 7 hours, Then 27.2p/Kwh to be good sense or good value!
@@kevinburke6743 Hi Kevin, thanks for your reply. I think I say a few times in the video that one charge point is enough for most people in most situations. In my own example, one charge point is even enough for two EVs and one of us does a fairly average commute, while the other an above average commute. So most people would be just fine.
As for your setup, if you and your partner are both doing hundreds of miles every day then of course one home charge point is unlikely to work. For this reason, even a 22kW charge point and vehicles that could take 22kW AC wouldn't solve your problem because only one vehicle would be plugged in.
The solution sounds like installing a second charge point at your home. The rate of charge would be halved for each vehicle while charging simultaneously, but it would mean both vehicles will add around 15 miles of range per hour over the course of the night.
If that isn't convenient for you, and you don't want to use public chargers (which is understandable), then perhaps an EV only household isn't the right solution for you at this time.
Thanks again for watching
Danny - Editor
22. Kw. REALY. DOES. HELP. . CAN. CHARGE TO 100% in 3 hours . IONIQ 5 .
Only IF you have three-phase supply at home. Most UK residential properties don't.
Electric vehicles and home charging on a single phase @7.6KW is NOT recommended. The maximum draw on a single phase is around 10KW. So you can either charge your car or run the water heater.
Three-phase installation should be mandatory on new large(r) homes.
edit: The argument that a 22KW installation is not a good idea because the cars of TODAY cannot support it simply, myopic. In a few years, battery capacities will go up, so will the allowed rate of charging
It's an interesting take on the situation. Don't get me wrong - I would love for all properties to have the option of three-phase 22kW charging. But it isn't the situation we find ourselves in in the UK and I don't see that changing.
That's my opinion, of course, but I'd be surprised to see the National Grid or the DNOs replacing the current single-phase infrastructure for three-phase. Even if new properties were equipped with three-phase, which they rarely are to my knowledge, there would still be millions of residential properties unable to facilitate a 22kW charge point.
It's on that basis I make my recommendation. In addition, 22kW charge point installations are more expensive in most cases. So, for most of our customers it's an unnecessary expense that they actually can't make use of regardless of whether the cards of the future will or not.
On your other point, EVs are no different an electric shower. Except, most EVs are charged overnight when it's incredibly unlikely that the oven, shower and other electrical appliances (other than fridge freezer) will be on at the same time. From a personal point of view, it's never been a problem at my home nor has it been for the 1000s of customers we have installed chargers for.
There are exceptions, of course, but DNOs are notified of each EV charge point installation so they can check the max load and they will perform any upgrades if they feel this is required.
Back to the 22kW front, it will be interesting to see where it goes. We shall see in 5-10 years' time.
Thanks for watching.
Danny - editor at Smart Home Charge.
@@SmartHomeCharge I am building a House in Australia and will have 3 phase thanks to AC. It will be a double story so I was thinking to have a charging provision in the garage as later it will be difficult to do on ground floor. Tp future proof the house should I go for 3 phase 32 Amp or 15 Amp provision?
Where does it say maximum draw on a single phase is 10kw?
Plus higher battery capacity isn’t the only solution to range anxiety - lower kWh/100km is a far better solution in every way.