EV (electric vehicle) News & Discussion

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#3121609 29-Aug-2023 14:58

@mattwnz the AC charger on an EV is onboard. You'll need to check the specs of the Lexus to see if it has a 3 phase charger. If the charger is 11kW or higher then it will be 3 phase, 7kW or lower, single phase.

SaltyNZ

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#3121610 29-Aug-2023 15:08

mattwnz:

I have a family remember who is looking at the new generation Lexus ux 300e(released a few months ago) before the clean car discounts possibly end. It now has a range of 450 WLTP and they are wanting a high quality reliable car, and for a Lexus it doesn't seem too badly priced. On paper as an EV the specs don't look great when comparing it to many others in that price range range in terms of efficiency and range. But the increased range and larger battery make it better value than it was previously . My main issue is the long DC charging time. But if they are mainly using it around home and not needing DC charging, then it shouldn't be that much of an issue. Anyone else have this model or tried one? They are on trple phase power as well, does anyone know if there is a charger that allows quicker AC home charging for this.

Honestly, you don't use DC charging as often as you think - especially not when you're getting up to that kind of range. If you are going on a long road trip, you want stop every few hours anyway just for comfort and safety. It's not like the good ol' days when 450km might be a two day trip in a Leaf. :-)

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HarmLessSolutions

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#3121615 29-Aug-2023 15:18

SaltyNZ:

mattwnz:

I have a family remember who is looking at the new generation Lexus ux 300e(released a few months ago) before the clean car discounts possibly end. It now has a range of 450 WLTP and they are wanting a high quality reliable car, and for a Lexus it doesn't seem too badly priced. On paper as an EV the specs don't look great when comparing it to many others in that price range range in terms of efficiency and range. But the increased range and larger battery make it better value than it was previously . My main issue is the long DC charging time. But if they are mainly using it around home and not needing DC charging, then it shouldn't be that much of an issue. Anyone else have this model or tried one? They are on trple phase power as well, does anyone know if there is a charger that allows quicker AC home charging for this.

Honestly, you don't use DC charging as often as you think - especially not when you're getting up to that kind of range. If you are going on a long road trip, you want stop every few hours anyway just for comfort and safety. It's not like the good ol' days when 450km might be a two day trip in a Leaf. :-)

The cost differential between public DC charging and 'filling up' at home are a strong incentive to charge at home. 80-85c/kWh from Chargenet or about a quarter of that for off peak charging at home? Our cost differencial is even more extreme as our home charging is sourced from our own PV. Our approach with a Polestar with a real life range of 300km is to charge to 100% prior to the journey and then aim to arrive home with ~10%.

https://www.harmlesssolutions.co.nz/

mattwnz

20147 posts

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#3121618 29-Aug-2023 15:25

HarmLessSolutions:

SaltyNZ:

Honestly, you don't use DC charging as often as you think - especially not when you're getting up to that kind of range. If you are going on a long road trip, you want stop every few hours anyway just for comfort and safety. It's not like the good ol' days when 450km might be a two day trip in a Leaf. :-)

The cost differential between public DC charging and 'filling up' at home are a strong incentive to charge at home. 80-85c/kWh from Chargenet or about a quarter of that for off peak charging at home? Our cost differencial is even more extreme as our home charging is sourced from our own PV. Our approach with a Polestar with a real life range of 300km is to charge to 100% prior to the journey and then aim to arrive home with ~10%.

Yes I was looking at the charging prices and they do seem crazy high, when you woudl hope they would be buying it wholesale under than 30 cents. I just wonder how all these people who live in new developments and don't have garaging, so have to park on the road are going to cope with charging and prices, as the transition to EVs progresses. I think it is likely to happen faster than has been planned.

jarledb

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#3121619 29-Aug-2023 15:26

You can read all the data on the Lexus UX300e (2023 ->) on the EV database.

I would not get that car. It has max 6.6kW AC charging, and max 50 kW DC charging with a CHAdeMO port.

With the battery it has it is a strange car, IMHO. It is set up like a city car on the charging side, but with a battery that makes it more of a long distance car. A the same time it doesn't have a good way of charge quickly when you are traveling.

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HarmLessSolutions

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#3121621 29-Aug-2023 15:32

mattwnz:

HarmLessSolutions:

The cost differential between public DC charging and 'filling up' at home are a strong incentive to charge at home. 80-85c/kWh from Chargenet or about a quarter of that for off peak charging at home? Our cost differencial is even more extreme as our home charging is sourced from our own PV. Our approach with a Polestar with a real life range of 300km is to charge to 100% prior to the journey and then aim to arrive home with ~10%.

Yes I was looking at the charging prices and they do seem crazy high, when you woudl hope they would be buying it wholesale under than 30 cents. I just wonder how all these people who live in new developments and don't have garaging, so have to park on the road are going to cope with charging and prices, as the transition to EVs progresses. I think it is likely to happen faster than has been planned.

The introduction of RUCs next year will further complicate that situation. I've crunched the numbers on our Polestar2 and the cost per km when charged at Chargenet's rates plus RUCs (assuming the 7c/km diesel rate) is level pegging with petrol cost per km for an equivalent ICE. There will be a degree of discontent occurring in the next few months as the new RUC system is revealed and in the meantime all bets are off.

https://www.harmlesssolutions.co.nz/

HarmLessSolutions

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#3121624 29-Aug-2023 15:36

jarledb:

You can read all the data on the Lexus UX300e (2023 ->) on the EV database.

I would not get that car. It has max 6.6kW AC charging, and max 50 kW DC charging with a CHAdeMO port.

With the battery it has it is a strange car, IMHO. It is set up like a city car on the charging side, but with a battery that makes it more of a long distance car. A the same time it doesn't have a good way of charge quickly when you are traveling.

So what's the point of having CHAdeMO connectivity if not for bidirectional charging ability. Another example of Toyota being a bit slow on the uptake technology wise?

https://www.harmlesssolutions.co.nz/

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Shadowfoot

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#3121625 29-Aug-2023 15:36

I’ve just had a bill shock. I got my new EV6 in mid June and I’ve done 3930 km in the last 2.5 months. I’m just using the slow 2.2 kWh charger at home.
We’re with Nova energy on a low user plan (with gas) but looking to change. Annual usage to 31 July was 4258 kWh, putting us as low usage.
The recent bill for 28/07 to 25/08 had 1231 kWh. My usage is 1/week 125 km return + 1/week 80 km return + local driving in Kapiti. There was also a day trip to Hastings last week that I recharged there and used 54.11 kWh. I expect there was the same usage for the return trip. There has been 2 Waikanae/Lower Hutt trips in this period.

Is this likely to be typical usage?
Powerswitch suggests Frank Energy as a lower cost but they don’t have an off-peak period. If this is typical usage then I’ll be better off getting a faster charger and switching to a plan that has cheap or free off peak periods. Who is recommended?

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jarledb

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#3121626 29-Aug-2023 15:36

HarmLessSolutions:

The introduction of RUCs next year will further complicate that situation. I've crunched the numbers on our Polestar2 and the cost per km when charged at Chargenet's rates plus RUCs (assuming the 7c/km diesel rate) is level pegging with petrol cost per km for an equivalent ICE. There will be a degree of discontent occurring in the next few months as the new RUC system is revealed and in the meantime all bets are off.

I doubt they will do anything but kick the ball down the road with regards to RUC.

As to charging prices. If you use your car a lot and have to rely on charging at ChargeNet, you can get better prices by signing up to a plan with Genesis. That way you pay the same when charging up at ChargeNet as you do for your regular power at home.

jarledb

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#3121628 29-Aug-2023 15:43

Shadowfoot:

Who is recommended?

I did the math on this for our use when we lived in Paraparaumu and found that Octopus Energy was best for us. And I see we use a lot of power in the off-peak and night periods.

We were paying 12 cents per kWh at night (11 pm to 7 am) when in Paraparaumu. Paying 14 cents per kWh where we live now. Prices might have changed since we lived in Paraparaumu though, so you will have to check how you will get on where you live.

I find that the Powerswitch service is a bit of a let down. It did not tell me which provider would be best for me when I used it last time I was checking. I have found mapping out our usage and then doing our own Excel sheet based on power prices was the only way to really get a good idea on who was best for us.

SaltyNZ

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#3121629 29-Aug-2023 15:44

Shadowfoot:

I’ve just had a bill shock. I got my new EV6 in mid June and I’ve done 3930 km in the last 2.5 months. I’m just using the slow 2.2 kWh charger at home.
We’re with Nova energy on a low user plan (with gas) but looking to change. Annual usage to 31 July was 4258 kWh, putting us as low usage.
The recent bill for 28/07 to 25/08 had 1231 kWh. My usage is 1/week 125 km return + 1/week 80 km return + local driving in Kapiti. There was also a day trip to Hastings last week that I recharged there and used 54.11 kWh. I expect there was the same usage for the return trip. There has been 2 Waikanae/Lower Hutt trips in this period.

Is this likely to be typical usage?
Powerswitch suggests Frank Energy as a lower cost but they don’t have an off-peak period. If this is typical usage then I’ll be better off getting a faster charger and switching to a plan that has cheap or free off peak periods. Who is recommended?

We usually use between 1200-1600kWh per month depending on the season so that would seem perfectly plausible other than that you said before that your annual usage was 4258kWh (or about 350kWh/month). Our usage only went up about 200-300kWh/mth when we got our first EV ... not 1000!

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HarmLessSolutions

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#3121630 29-Aug-2023 15:46

Shadowfoot:

I’ve just had a bill shock. I got my new EV6 in mid June and I’ve done 3930 km in the last 2.5 months. I’m just using the slow 2.2 kWh charger at home.
We’re with Nova energy on a low user plan (with gas) but looking to change. Annual usage to 31 July was 4258 kWh, putting us as low usage.
The recent bill for 28/07 to 25/08 had 1231 kWh. My usage is 1/week 125 km return + 1/week 80 km return + local driving in Kapiti. There was also a day trip to Hastings last week that I recharged there and used 54.11 kWh. I expect there was the same usage for the return trip. There has been 2 Waikanae/Lower Hutt trips in this period.

Is this likely to be typical usage?
Powerswitch suggests Frank Energy as a lower cost but they don’t have an off-peak period. If this is typical usage then I’ll be better off getting a faster charger and switching to a plan that has cheap or free off peak periods. Who is recommended?

It looks like an EV6 will be returning about 5km/kWh and as your 3,930 is an average of ~1,600km/month that works out at about 320kWh/month to charge it.

Run your own calculations about the best power provider deal, installation of a level 2 (7kW) EV charger, and perhaps the viability of putting a few PV panels on the roof.

As a comparison we have had our Evnex charger in service since mid August and in that time it has put 115kWh into our Polestar. No long trips, just commuting from our rural property and we normally do a bit over 1,000km/month so that tallies with my calcs above.

https://www.harmlesssolutions.co.nz/

mattwnz

20147 posts

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#3121636 29-Aug-2023 15:57

jarledb:

You can read all the data on the Lexus UX300e (2023 ->) on the EV database.

I would not get that car. It has max 6.6kW AC charging, and max 50 kW DC charging with a CHAdeMO port.

With the battery it has it is a strange car, IMHO. It is set up like a city car on the charging side, but with a battery that makes it more of a long distance car. A the same time it doesn't have a good way of charge quickly when you are traveling.

Thanks, yes it is a strange car, but was their first model, and they basically just turned an existing hybrid car model into an EV. As the people buying it are older and don't take big long trips very often, I don't think charging is that much of an issue, although 12 hours for AC charging is still a long time, and from what I have read it could be due to the batteries being only air cooled. 80 minute for fast charging maybe a few times a year when on longer trips may not be too bad. It looks similar to the charging specs of a Nissan Leaf. They were also looking at the Toyota BZ4X which is due out next year, which looks to be a better EV setup, but imagine it will be very popular and there will be a waiting list like there is for RAV4s.

alasta

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#3121638 29-Aug-2023 16:03

HarmLessSolutions:

The introduction of RUCs next year will further complicate that situation. I've crunched the numbers on our Polestar2 and the cost per km when charged at Chargenet's rates plus RUCs (assuming the 7c/km diesel rate) is level pegging with petrol cost per km for an equivalent ICE. There will be a degree of discontent occurring in the next few months as the new RUC system is revealed and in the meantime all bets are off.

This is my exact situation. I live in an apartment with a remote car park that has no access to power, so from a financial point of view I am substantially better off with an efficient petrol vehicle.

I looked at the Genesis Energy+Chargenet deal, but I got the impression that it's designed for people who charge at home and want cheap public charging as an add-on. I was slightly confused as to what, if any, implications there would be if you didn't do any charging at home.

KrazyKid

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#3121639 29-Aug-2023 16:11

What are peoples thoughts on the sweetspot for upgrading a 24KW leaf.
Had this car for about 6 years and really would like to get something that goes 200+ Km easily.

I'm in Dunedin and driving into Central (200km) upto Timaru (200km) or Chch (360Km) would be a only a 8-10 times a year realistically.
But the thought of being able to go away easily for a weekend drive of 200kmm is nice :)
I don't want to spend over $40K and $30 would be ideal.

Thinking about the new MG4 ($40K) or maybe a used Kona 64KW (seem to be around $35K?)

Any other thoughts on cars?

Anyone in the South Island do an affordable battery pack upgrade and is there any point considering how the leaf battery degrades so quickly?
(No point buying a 200km range battery for a Leaf for it to be only 170Km in 4 years - need some buffer in the range to allow for that)

How has the Kona Battery pack held up generally?
It did have that early recall.

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