EV (electric vehicle) News and Discussion

Forums › Transport (cars, bikes and boats) › EV (electric vehicle) News and Discussion

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#3482568 20-Apr-2026 15:39

HarmLessSolutions:

johno1234:

From whence are these chargers charged?

I would assume from the grid. By having a battery acting as a 'reservoir' it avoids the requirement for a supply cable to the facility capable of delivering the full 180kW supply. By the sounds of this the grid supply is good for 120kW with the battery being able to boost that to 180kW.

It lelays that upgrade capex, but probably doesn't totally remove the need for it... As the number of Vehicles using the charger rises, the battery recharge time available between uses will shrink...

But because the demand is established and there is data on the growth rate of the number of users, its much easier to justify to the accountants to upgrade the feed connections... at which point you can take the battery set up off to another "fringe" location at look at boosting use there...

Its a great way to get round the "Chicken and Egg" problem, - especially as lines companies like Counties energy have regulated Capex as they are a local monopoly and are restricted from "over building"

HarmLessSolutions

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#3482569 20-Apr-2026 15:45

wellygary:

HarmLessSolutions:

I would assume from the grid. By having a battery acting as a 'reservoir' it avoids the requirement for a supply cable to the facility capable of delivering the full 180kW supply. By the sounds of this the grid supply is good for 120kW with the battery being able to boost that to 180kW.

It lelays that upgrade capex, but probably doesn't totally remove the need for it... As the number of Vehicles using the charger rises, the battery recharge time available between uses will shrink...

But because the demand is established and there is data on the growth rate of the number of users, its much easier to justify to the accountants to upgrade the feed connections... at which point you can take the battery set up off to another "fringe" location at look at boosting use there...

Its a great way to get round the "Chicken and Egg" problem, - especially as lines companies like Counties energy have regulated Capex as they are a local monopoly and are restricted from "over building"

From discussions I had with a friend who was managing the development of Hampton Downs a few years back they were struggling with the capacity available there to power a decent DC charging facility for the track. Having onsite battery storage was under consideration but I never found out if that's the strategy they eventually went with.

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

fastbike

527 posts

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#3482573 20-Apr-2026 15:49

CokemonZ:

The discord? Geekzone or the dalathegreat one?

The Dala one accessed via his Patreon sub.

Otautahi Christchurch

fastbike

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#3482991 22-Apr-2026 12:32

HarmLessSolutions:

From discussions I had with a friend who was managing the development of Hampton Downs a few years back they were struggling with the capacity available there to power a decent DC charging facility for the track. Having onsite battery storage was under consideration but I never found out if that's the strategy they eventually went with.

The Springs Junction has a capacity limited line between 4am and 11pm, so it charges the BESS outside of that time. I think the cost of upgrading the line would fail the economic sniff test as the area is very sparsely populated.

There are chargers at Hanmer Springs and Murchison so this site is really for cars that are struggling to complete that leg of a trip from Chch to Nelson e.g. A Better Route Planner website shows a 2018 40kWh Nissan Leaf with 85% SoH, leaving Hanmer with 90% SoC would need to add 15% (7 mins) to make the trip with a 10% SoC on arrival. My calcs show that is pulling 6kWh out of the 360kWh max capacity. Obviously a more anemic car will need more.

Otautahi Christchurch

wellygary

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#3483567 23-Apr-2026 16:21

fastbike:

e.g. A Better Route Planner website shows a 2018 40kWh Nissan Leaf with 85% SoH, leaving Hanmer with 90% SoC would need to add 15% (7 mins) to make the trip with a 10% SoC on arrival. My calcs show that is pulling 6kWh out of the 360kWh max capacity. Obviously a more anemic car will need more.

How well does ABRP do on estimating regen??...

Springs junction is roughly 500m lower than the top of the Lewis pass, so that's potentially a useful few Kwh??

fastbike

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#3483589 23-Apr-2026 18:38

wellygary:

fastbike:

e.g. A Better Route Planner website shows a 2018 40kWh Nissan Leaf with 85% SoH, leaving Hanmer with 90% SoC would need to add 15% (7 mins) to make the trip with a 10% SoC on arrival. My calcs show that is pulling 6kWh out of the 360kWh max capacity. Obviously a more anemic car will need more.

How well does ABRP do on estimating regen??...

Springs junction is roughly 500m lower than the top of the Lewis pass, so that's potentially a useful few Kwh??

It's pretty good, even adjusts for current wind and temps.

Regeneration is not a free lunch, how did the car get to the top of the Lewis ?

Otautahi Christchurch

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RunningMan

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#3484429 26-Apr-2026 16:10

https://www.nzherald.co.nz/world/security-fears-as-chinese-electric-car-byd-records-everywhere-youve-been/WXGPQPADIVFBHGGHBEOQDVHMWI/

BYD vehicle storing GPS location data several times per second since manufacture. So every single trip made is stored in the vehicle.

fastbike

527 posts

Ultimate Geek
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#3484432 26-Apr-2026 16:31

RunningMan:

https://www.nzherald.co.nz/world/security-fears-as-chinese-electric-car-byd-records-everywhere-youve-been/WXGPQPADIVFBHGGHBEOQDVHMWI/

BYD vehicle storing GPS location data several times per second since manufacture. So every single trip made is stored in the vehicle.

Stored in the car, or in the cloud ?

Otautahi Christchurch

deepred

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#3484437 26-Apr-2026 16:46

RunningMan:

https://www.nzherald.co.nz/world/security-fears-as-chinese-electric-car-byd-records-everywhere-youve-been/WXGPQPADIVFBHGGHBEOQDVHMWI/

BYD vehicle storing GPS location data several times per second since manufacture. So every single trip made is stored in the vehicle.

Supposedly it can be disabled in an on-screen menu, but even then the GPS tracker may still need physical removal. Would it void the warranty, by chance?

"I regret to say that we of the F.B.I. are powerless to act in cases of oral-genital intimacy, unless it has in some way obstructed interstate commerce." — J. Edgar Hoover

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dafman

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#3484441 26-Apr-2026 17:19

deepred:

RunningMan:

https://www.nzherald.co.nz/world/security-fears-as-chinese-electric-car-byd-records-everywhere-youve-been/WXGPQPADIVFBHGGHBEOQDVHMWI/

BYD vehicle storing GPS location data several times per second since manufacture. So every single trip made is stored in the vehicle.

Supposedly it can be disabled in an on-screen menu, but even then the GPS tracker may still need physical removal. Would it void the warranty, by chance?

I used to worry about Chinese products. I’ve given up worrying now. What are they going to do, kidnap me in the dead of night?

RunningMan

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#3484442 26-Apr-2026 17:19

fastbike:[

Stored in the car, or in the cloud ?

The linked article indicates BYD say it's not in the cloud, but who really knows.

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gzt

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#3484446 26-Apr-2026 17:47

It's not particularly unusual:

Article: Ken Munro, of cyber security group Pen Test Partners, said that while many cars store location data, “these are generally well secured”. He added: “The major flaw with this particular telematics unit is that it was relatively easy to extract location data from. With a little more effort at security by the manufacturer, this should not have been possible.

All vehicles in general including internal combustion are a security and privacy nightmare.

SaltyNZ

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#3484448 26-Apr-2026 18:06

gzt: It's not particularly unusual:

Article: Ken Munro, of cyber security group Pen Test Partners, said that while many cars store location data, “these are generally well secured”. He added: “The major flaw with this particular telematics unit is that it was relatively easy to extract location data from. With a little more effort at security by the manufacturer, this should not have been possible.

All vehicles in general including internal combustion are a security and privacy nightmare.

Yeah, this isn't a "BYD" issue. It's a "2020s car" issue. Frankly if I could choose between the Chinese government tracking me and the US government tracking me, I'd choose the Chinese because there's a lot less they can do to ruin my life.

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These comments are my own and do not represent the opinions of 2degrees.

fastbike

527 posts

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#3484514 26-Apr-2026 19:56

SaltyNZ:

gzt: It's not particularly unusual:

Article: Ken Munro, of cyber security group Pen Test Partners, said that while many cars store location data, “these are generally well secured”. He added: “The major flaw with this particular telematics unit is that it was relatively easy to extract location data from. With a little more effort at security by the manufacturer, this should not have been possible.

All vehicles in general including internal combustion are a security and privacy nightmare.

Yeah, this isn't a "BYD" issue. It's a "2020s car" issue. Frankly if I could choose between the Chinese government tracking me and the US government tracking me, I'd choose the Chinese because there's a lot less they can do to ruin my life.

Haha. Nissan Connect is not supported in NZ. An advantage to being at the end of the supply chains

Otautahi Christchurch

HarmLessSolutions

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#3484521 26-Apr-2026 20:46

Having just completed a 1,200km return trip to Gisborne this weekend to attend a family wedding my observations are that traffic was relatively light for a long weekend, Gisborne has a lower penetration of EVs and perhaps as a result of this their public charging facilities are sadly lacking. Best we could find were a Chargenet 50kW unit in the CBD that didn't seem to be included in their mobile app (but was occupied when we visited it) and a 50kW Openloop unit in the Woolworths carpark (which reverted to 1/2 when a second EV hooked up. No Tesla or Z Energy chargers in the area.

If Luxon is looking for somewhere to throw money ar public EV charging Gisborne makes a good candidate.

Otherwise the trip was very successful with a mix of Chargenet, Z and Tesla chargers charging the Polestar quicker than we could recharge ourselves with food and coffees. I'm just thankful i didn't have to fork out for fossil fuels for our weekend's travels. Good weather forecast for the next day or two so solar should replenish our currently depleted battery.

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

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