wyx087

Funny rant on EV website: https://electrek.co/2024/09/10/ev-sales-have-not-fallen-cooled-slowed-or-slumped-stop-lying-in-headlines/ That is US based data. Europe based data from June: https://alternative-fuels-observatory.ec.europa.eu/general-information/news/europe-ev-sales-analysis-key-insights-june-2024-registrations

Happy World EV day https://www.worldevday.org/ (yes, that's a thing) Free charging at RAW charging: https://rawcharging.com/raw-charging-offers-free-charging-to-celebrate-world-ev-day-for-the-third-year-in-a-row/ 15% off at BP Pulse: https://www.bppulse.co.uk/going-electric/world-ev-day

Excellent table showing which charge point operator works with which payment: https://www.speakev.com/threads/fuuse-wattsup-partnership-announced.186924/?post_id=3658927#post-3658927 Table can be copy and paste into Excel for filtering. So essentially only need to have Octopus Electroverse and contactless bank card to cover majority. If want to be sure sign up with the big individuals: BP Pulse, Podpoint and Tesla. This is the rest, I can't say I've seen any of them in real life. I've only heard of Vend Electric for destination charging.

Standard 19 inch, I always choose the smallest. I'm very glad to be able to choose the smallest wheel on a high trim model. So far, from changes made to Highland vs 2018 M3, I'm not tempted by Juniper. Interior ambient lighting.... meh, stalk-less.... I can adapt but not keen, better ride..... tempting but not better enough to worth the price to change. Only thing to tempt me out of this car would be a practical 7 seater Tesla (not the unnecessarily complicated MX doors, the 7 seats are nice to have for short trips so MY 7 seater is preferred, don't want any bigger) on much much better suspension (for example air suspension). I would have definitely ticked 7 seater if it were available to order back then. Don't change anything else, the stream of new software feature updates, the screen and the way user interact with the car via app/screen is perfect, I feel.

Best get it done before the wet/snowy season starts.

Electricity tariff at 7p/kWh now, 7.5p previously. Let's round up and say 5000 kWh used, 90% AC at 8 p/kWh and 10% DC supercharging at 40 p/kWh. £360 AC charging, £200 DC charging => £560 3.2p per mile. I should drive it more before tax gets introduced 🤔 There was a feedback survey. The only thing I think need improving is suspension at low speed over potholes. I'm very happy with everything else, 99% perfect car for me.

One can install solar panels and a sizeable install can enable entirely energy independence on an individual level. Last time I checked, back yard oil drilling isn't a thing. The import/export of electricity via interconnect are from our neighbours rather than dictators. This local energy trading is also important to allow more resilient renewables before enough renewables and storage capability is available. You know where I'd put EV's in that equation Let's also not forget UK both buys and sells throughout the day.

I think this thread is pretty telling about people misconceptions regarding EV's. The misconceptions summarised, with well referenced sources on correct facts: https://eciu.net/media/press-releases/2024/poll-most-petrol-car-drivers-score-just-2-out-of-10-for-ev-knowledge I certainly feel down south and in western Europe, public charging infrastructure is no longer a problem. Not sure about Scotland due to CPS disincentivised and delayed competitive public charging installs. The last point on CO2 emissions was just discussed a few pages ago. UK have a clean grid and ever improving. With more upcoming renewable installs, variability is only going to grow, EV is perfectly positioned to capture those (for example Octopus energy's free sessions)

Very nice, comfy and quiet with more than enough space. Renault have done a great job. Under 2000 kg, might be aiming for something in Paris

Didn't know this one. Thanks. https://www.theverge.com/2024/8/26/24228982/rivian-factory-ev-fire-damage-battery Vehicle fire in parking lot, multiple vehicle damaged, no injury. Cause is under investigation. From the way it's parked, probably new vehicle holding lot. https://www.facebook.com/groups/RivianEV/posts/1721643631926244/

The thing is, I've not noticed actual self-discharge. There had been days I've left the MYLR parked in summer and it may drop one or two % as the car wakes up to report to mothership. It may be hidden and a long drive to very low SoC after left the car for ages is not advisable. I have, however, noticed Leaf SoC dropping faster imminently after charging, but I'm also drawing energy from it so it's difficult to tell. One more thing to note is that as battery age, their internal resistance increases. This is Hx value on Leafspy. More internal resistance means more heat-loss as power draw increases. I noticed this first hand with my Leaf, where previously borderline motorway commute now requires charging at work because SoC drops faster now on motorway due to increased internal resistance. I think it will also play a part with rapid charging, either slowing down or battery heats up faster. But I've no experience with this as my Leaf rarely sees a proper rapid charger. As you realised, these early EV is strictly local runabout. It's great to see you wanting to experience it first hand in order to learn more about them. Unlike some members of this forum....... 🤐

This is worth reading on self-discharge. Seems to be SoC + temperature related. Higher SoC, higher temperature, faster self-discharge. https://batteryuniversity.com/article/bu-802b-what-does-elevated-self-discharge-do Perhaps my 1+ month Leaf example not dropping was due to BMS out of calibration and not understanding self discharge happened over that time frame. Again, remember that BMS is just guestimating the battery states and conditions based on parameters it measured. The article also mentions cell can no longer be charged below 2.5v. So your concern regarding irreparably damaged after a certain time is certainly valid. But that would only be a problem if the vehicle was left at very low SoC and not charged back up for a long time. It would also be very easy to identify because vehicle would no longer connect HV battery, undriveable and not easy to restore, battery would have to be removed and cells re-conditioned using method mentioned in the article. I personally think unlikely to happen for very old vehicles given skill shortage and no shortage of stock.

Interesting the guy from the grid downgraded your fuse. What was the reason? Is it some sort of up stream limitation? Too many EV chargers in the neighbourhood? When I fitted 2 chargers (7.4 kW smart pro and 6 kW V2H) just a simple DNO notify was needed, nothing else. In my 9 house close, there's currently 4 house with EV charge points. I've not heard of house fuse getting downgraded around here. The Indra smart pro charge point (and all charge points that can be sold+installed today as per government smart charger regulation) will have a CT clamp at incoming location to sense how much you are currently drawing from the grid. If it is close to your fuse capacity (set by installer during commission), it will reduce available power to the car. When it senses house load going away, it will resume max power to the car. So you can safely use whatever you wish, just a hair longer charge times. Remember normal solar and battery system installed without gateway device will not work when grid goes away. They are called grid-tied inverter and syncs to the grid 50 Hz. Only inverter with EPS (emergency power supply) function + gateway device installed can continue to power the house if disconnected from the grid for whatever reason.

Charging will take less because capacity is less. Charging up my 22 kWh net 24 kWh gross Leaf, now at 79% SoH. The energy put in and extrapolate out using % charged consistently comes to 17-18 kWh of energy as if to charge 0-100%. (for example, charge 50% used 9 kWh, this extrapolates to 18 KWh for 100%). Think of degraded battery like a petrol tank with a solid piece of gunk that slowly forms. It takes up fuel space in the petrol tank. Less space, less fuel you can put in or take out. With eNV200, it is based on Leaf platform, you can plug in OBD dongle and read Leafspy off it. There's a similar Renault app for Zoe and probably Kangoo, called CanZE: https://canze.fisch.lu/ The BMS will have a state of health guestimate value as it measures battery parameters, with these tools you can read out this value. Another key metric is to ensure voltage difference between cells are not too large at low SoC. Big delta for a few cells indicate weak/failing cells. One thing to be careful is that cells degrade as time goes on, known as calendar aging (other one is cycle aging). But the BMS SoH estimate wouldn't update unless it sees cells being exercised. Buying a battery that had been sat for years is risky because the SoH reading isn't up to date. To calibrate BMS, you need to do low SoC to 100% (or 100% to low SoC) at least once. On self discharge. If the battery were disconnected, they wouldn't self discharge much. Nissan Leaf are simple devices, the HV battery operates on same logic as car engine. It won't connect by itself. I've left Leaf for over 1 month at exactly 50% SoC and come back to 50%. It would take many months for the energy to slowly released as electrons leak back through lithium electrolyte, this is faster at higher SoC and much much much slower at low SoC (below 3.7v per cell). Tesla's are known to slowly decreasing SoC because they connect HV battery for everything, even refreshing the app vehicle status. So it draws energy from HV battery. This is called vampire drain.

I've got all Indra chargers (Smart pro regular AC charge point and DC Chademo V2H). Hardware are great and solid. It's been almost a year and their white casing are still snow white. Software leaves a lot to be desired. The app for smart pro looks nice but doesn't sync with boost status if boost were pressed on the unit. There is also no Home Assistant integration for smart pro. Intelligent Octopus integration has been "coming soon" for more than a year before my install. The V2H software is very basic, and for an in-development kit, rarely gets any update. Still waiting for a scheduling system and SoC limiter. Thankfully someone made a Home Assistant integration for the V2H so I can schedule and limit SoC in there. Worth consider Zappi or Ohme for Intelligent Octopus integration. I only gone Indra because the regular charger install were super cheap addon when I installed the subsidised V2H trial unit.

😛 https://www.spiritenergy.co.uk/tesla-power-wall-3#:~:text=Tesla Powerwall 3 is rated,a laser-welded lower half. I'm getting it wall mounted about 20cm off the ground. Only need to worry about ground floor sockets, they can be isolated via consumer unit.

We need more like these honest traders. Sounds like EV is a no-go for the lady, so it's better to lose a sale than to flog a car. When I talked to my Skoda dealer in 2022, they did ask the question that I have driveway to charge the car. But the Kia and Hyundai dealer were not only poorly informed on their product, couldn't care less about charging. Kia even pushed us toward the refreshed Niro so they can a completed sale quicker (component shortage back then).

You made the claim, it would be good to say where that claim came from. This isn't about what I say, this is your claim, you supply the evidence to back up your claim. Otherwise it's an empty claim. Previously you've referenced "diesel is cleaner" in early 2000's. But we all know how much lobbying had been done by the auto and oil industry to delay electrification. It was not a question of right course or right solution, it was purely a money motivated solution to continue those industry's business model. The pitfalls were well known by stakeholders before it was pushed by the government. https://www.bbc.co.uk/news/uk-politics-41985715

Such as?

Which would you rather be, medieval king or modern day average Joe? Living condition have been constantly improving over the years. Modern day average person lives in far far better condition than even the wealthiest kingdom's king from half millennium ago. Even compared to a century ago, we live in hugely improved comfort. Where did all this improvement come from? Scientific developments. Certainly not by saying "it's all much improved now, we can stop improving things" or "no new things, they are scary, stop with new things".

Indeed Volvo make great cars. I learnt driving in a Volvo 340 (or something similar). Years later, I had a s40 mk1 for many years, took me many places. I was tempted with Polestar 2 but interior feels smaller than Model 3 let alone Y. When going on holiday somewhere with good charging coverage (eg. France, Germany, Norway etc). I'd definitely want to try to rent Polestar. It costed the same between Polestar 2 vs Model 3 when I rented in Portugal, so I went with easier to charge option. Polestar 3 and 4 unfortunately seems like Chinese EV adopted to European market. Rather than Volvo adopted to EV's.

We've gone over this previously. Just because breathing in lead (for example) was believed to be okay back in the "good ol' days". Doesn't mean new scientific evidence should be ignored. The goal post is constantly changing for the better because the world is constantly changing.

Very interesting video, thanks. Also appreciate you set the video to start at most relevant point. One more thing to mention is that EV BMS have a strange tendency to "restore" SoH on repeated rapid charging. I have noticed SoH going up as battery is exercised by rapid charging. Similarly, as mentioned, the mostly AC charged could have been kept near 100% most of the time. I know the option to limit charging to 80% was removed around 2016 when infotainment screen was refreshed from CarWings to Nissan Connect. Finally, this SoH read out is as accurate as BMS's best guess, If the car never exercises its full battery capacity (eg always AC charged small amount), the BMS figure would be lower than actual. Case in point, this is a snippet of my MYLR battery health plot against mileage. The wavy lines show SoH is more of a guess than actual value. The highest points are when I did the 1560 miles road trip to Isle of Skye, exercising the battery from high 90% down to low 10% and doing many ultra rapid charging. I'm not at all worried about recent rapid decline, as I've been charging small amounts last few months. Battery capacity calibration is slowly going off. Could come back if I exercise the battery and do one charge to 100%.

Sorry, I wasn't expressing clearly. I was thinking of both banning cars from certain areas as well as decreasing speed limit. When I mentioned safer, I was thinking of the 20mph backlash, where Geoff's video was also shared on here. (hence the mental link from banning cars in an area to 20mph zones in Wales) Right tool for the job with reasonable consideration to society and environment among others. These measures are designed to get people out of cars in the first place, making car no longer the right tool for the job...... I personally think it's a positive step towards healthier more sustainable society. Ok Boomer, you can have the last say on this 😉 Very mature of you. 😘

I'd be very interested to learn more about debunking slower speed limit saves lives. Selfishness. Got it 👍