wyx087

Some of them certainly do heat scavenging. Eg. Tesla: Explanation of Tesla's "octovalve": https://www.tesmanian.com/blogs/tesmanian-blog/deep-looks-into-tesla-model-y-s-octovalve I hear the new BMW i5 does have heat scavenging. Legacy auto are slowly catching up. Although the i5 still built on ICE platform with poor interior space and 1.6m bonnet without any storage underneath. Under the bonnet is a huge mess of coolant tubes to achieve similar thing to Octovalve.

Efficient does not equal to zero waste heat. Imagine putting a very large bowl of water into microwave, heat it for 1 hour, how hot is this going to get? That's equivalent the amount of waste heat energy density running EV on motorway for 30min. (large bowl roughly size of motor, 1 kW microwave and 2 kW waste heat, 90% efficient 20 kW constant driving demand)

How does those boot mounted bike racks attach to the car? Do you think the straps can work on Tesla's glass boot/roof? I'm looking at options to transport 2 bikes at the moment.

"don't need to change engine oil" becomes "no oil" Be sure to add more "maybe", "may or may not " wording so that nothing can be traced back to you. But still do mention all those "maybe" unrelated fires so the uncertainty towards EV lingers in people's mind.

Last angle looks like that Smart #1 thing. No more round lights!? That's not a mini!

Feeling the pressure from Tesla opening up superchargers? Ionity passport subscription fee has now been reduced. https://ionity.eu/en/network/access-and-payment 56p/kWh with £5.50 per month sub. Cheaper than Tesla's monthly price and rate is only a few p more expensive than Tesla' peak time rate (comparing with subscription). Both cancel anytime for those road trips.

Just seen Tesla official youtube channel video of their truck powering an entire house, 11.5 kW Vehicle-2-Home. Reads like only need to change charge point £450 and add a gateway £2000. Installed should cost under £4000. https://www.pv-magazine.com/2023/12/05/tesla-cybertruck-can-power-homes/ The moment that is trickled down to Model Y will be when I consider changing car. Also have to wait for aftermarket stalks 😓 Last few months, I've been researching into cheapest way to make whole house resistant to power-cuts. So far, cheapest way is Sunlynk inverter + a small battery, install cost over £7000. Or GivEnergy AIO + Giv-Gateway, over £10k, or Tesla Powerwall over £10k for the unit only. With 2 EV's, if both do V2H it'll be perfect. We never have 2 cars away at same time and need to draw large amount of power. Why have another battery manufactured when there's a bigger one on the driveway?

Huge bonnet, spaghetti heat pump pipes under the hood, over engineering, zero usable space.

Again, I think it's more about what you had been saying earlier about training. ICE fire vs EV fire is different, there's different probability and different severity. It does not mean one is worse than the other. It's just different and require different risk mitigations.

Hey, that's Ally Pally, not far from me I've walked around that end many times. There's a "first BBC TV studio" or similar sign around that corner. Because it's a historic building with significant culture value and someone done a risk assessment, their fire procedures haven't been updated to effectively combat EV fires. Wait a few more years and I'm sure it would be an urban myth oft repeated by anti-EV brigade. In reality it would no longer be banned because training and procedure had caught up. Unfortunately same as your stipulations, I have no way to prove it is the case in a few years time.

Very balanced view. I totally agree we need to hugely step up research, awareness and procedure training to handle possible EV fire. But, at 11:31 he mentions second hand EV battery trade should not be allowed. He also been very dismissive of how batteries catch fire, only concentrating on what happens after it catches fire. The key thing Prof. Christensen forgets here is that it isn't when, it's a very low probability if. Again, we need to step up research for battery re-use and re-certification in order to allow safe re-use of second hand EV batteries. Also, his concluding statements that charging need be cautious is very unnecessary and perhaps opinion is formed by his research into battery thermal runaways. Earlier, he acknowledges that battery would only catch fire if overcharged or other ways abused. There would not be any problem using batteries normally within its parameters. However, despite what he says, I honestly cannot find anywhere else that light BEV being banned from Westminster Abby. The comment was also not in a presented slide (that can be seen in this video) and the comment was made on the fly. I am not convinced it is entirely true. After all, are they going to ban the king from driving in there? https://www.gridserve.com/2023/05/03/king-charles-coronation-the-electric-cars-fit-for-the-green-king/ https://www.dailymail.co.uk/news/article-12426141/king-charles-shows-new-electric-Audi-Q8.html (sorry, article about King's Q8 e-tron)

On similar topic, what colour do you guys call this? Wife insist it's blue, V5 and I say it's green. Interesting game, but I think white will win simply because this is Tesla's no-cost colour and it's multicoat metallic, very acceptable. Green also isn't offered for Nissan Leaf as a colour option. Green is just not a commonly available to begin with. What's the next best selling BEV's after Tesla's? Do they offer green?

Interesting data. silver is my preferred car colour, wouldn't get dirty too quickly and looks great in all UK weather. I would not hesitate with the Quicksilver colour, saw one on German motorway last year, it looked great. Unfortunately UK only gets boring grey. https://insideevs.com/news/627669/tesla-model-y-quicksilver-photos/

https://electrek.co/2024/01/19/tesla-model-y-was-europes-best-selling-car-in-2023-the-first-ev-to-take-top-spot/

The blue Model Y was registered Sep 2022 at 3 miles, I'm the first and only owner. Lifetime trip stat was 271 Wh/mi in Sep 2023, only ~4 miles of odometer not counted. The red Leaf was registered in Dec 2014, my wife is the second owner, bought Oct 2017 at 18k. Now 9+ years old at ~60k. Not a single time in my ownership I've experienced any sort of problem with Tesla's glass roof. But I agree it may become problematic as the car ages, we'll see. Although similarly, with humidity under control via dehumidifier, the glass roof on my conservatory doesn't have condensation or any mould problem.

Well, if I can get a house with double length driveway cheaper than £850k in tube zone 4 Greater London, I'm sure there are more affordable houses with driveway elsewhere in UK. One only have to look. Rightmove have a helpful "driveway" filter, even back in ~2014. Not experienced condensation dripping from glass roof thus far. It may well do as the car ages and as the glass roof becomes contaminated with finger prints and other stuff. I've resisted touching it, it may be coated to prevent such thing.

Yes, I did notice it looking at the photo afterwards. Glass is never going to be as good insulation as metal + damping. Wife also doesn't like it in summer on rare days we get sun around here. If there was a configuration choice, I would have chosen a solid roof like a normal car. Trust me, I wish I lived in a £2m house. I have suggested converting the small front garden into parking space, in front of the window to the very right. A bit tight but can park a car and means don't have to keep swapping. But wife wanted to keep the green space. As they say, happy wife happy life. 🙄 Having a driveway was a must-have requirement for us when we moved ~10 years ago. EV's were in infancy and I knew it would need off-road charging.

This Car magazine article popped up in my news feed. Interesting it doesn't mention Octopus. https://www.carmagazine.co.uk/electric/best-ev-charging-tariffs/ @cheezemonkhai, want to just copy+paste most up to date info for OP, simply get it from here: https://www.speakev.com/threads/list-of-ev-tariff-for-2-5p-mile-motoring.179786/

Interesting the car relying on heat pump (blue Tesla MY) warms up slower than resistive heater (red Nissan Leaf). Probably used less energy though, hard to measure. Wife school run, I came home late last night due to work, so had to move my car this morning. Pressed pre-condition button at same time. Leaf had a minute delay in starting due to slower (hopeless terrible) Nissan servers. Leaf pre-heating will only use PTC resistive heater. Tesla with heat pumps will only use heat pump. It was evident when I came out and hearing the compressor under the bonnet for blue car but not the red one. -5c outside today. Leaf’s bonnet rarely iced up this year. Probably due to V2H keeping the car electronics awake.

As I drove home today, getting to the car at 6:30pm after a few hours of below freezing, other co-workers had to wait for their car to warm up and/or scrape ice. I turned on pre-conditioning as I packed up, got to a warm car without any frost and drove off straight away. Similar story this morning. 58 miles return, 8+ hours apart, was just over 3 mi/kWh at -5c in the morning and -2c return. Compared to 3.7 mi/kWh average economy over 1 year. EV's do have small amount of waste heat. After stopping at home, I checked S3XY button app and it showed battery was at 10c, up from 6c when I set off. Coolant going in was at 12c, presumably heat scavenged from motor. If EV motor are 90% efficient and used 20 kW to maintain 70mph, that means 2 kW of heat is available for heating the cabin or battery. Just need a flexible smart system to scavenge that heat and heat pump to raise the temperature to make it useful. Minimise waste, minimise energy used for heating.

I would be super happy for you to edit OP with up to date info. It's much easier for everyone to have the information in one post, rather than across the thread. Not owning a Skoda, I am actually on the verge of just giving up this forum. It's been super useful when I had the Octy, but now SpeakEV is adequate for all my needs, because I have absolutely zero desire to ever drive an ICE again.

"Battery passport" does not mean you need to get a passport for your car. It wouldn't affect consumer apart from more easily accessible supply chain knowledge about the vehicle. Read the contents of article you've shared!

How does that work from Highway code perspective about running engine unattended. Is this why it's not available? This is the thing I was alluding to earlier. Handing renters who are not used to it, instant fast accelerating cars. EV's generally get a higher category than ICE cars, hence more slightly expensive. Fast acceleration may be a contributing factor.

The last part of that article states the 100k deal was seen to completion. Of course ride hailing cars get driven into the ground, and more likely to need bodywork repairs. EV's instant torque may also be surprising for people who are not used to it. In 2021-2022 they bought 100k Tesla, plus other cars throughout the year. At end of 2023 they have 60k total EV's. Beginning of 2024 they want to cut it down further down to 40k. At some point between 2022 and 2023 they've cut their fleet by half, quietly. But in 2024 they decide to publicise this particular fleet restructure. I also think there's some narrative going on to shape public perception about supposed high cost of running EV's. Cost is indeed a prohibitive factor. I would happily hire a BEV if it were only slightly more expensive. My Austria holiday last year I rented a horrible diesel X1, even though there were free Tesla destination charger at my hotel. Cost to hire a Tesla were more than double compared to what it costed me with a small budget rental company. Problem is budget rental companies are not offering EV's around Europe. But I read it's different in sunny California, Model 3 costs same as a economy box to hire.

Thanks for explanation Graham. BMW CFO: sales growth is mostly electric as combustion engine 'tipping point' passes https://www.reuters.com/business/autos-transportation/bmw-cfo-sales-growth-is-mostly-electric-combustion-engine-tipping-point-passes-2024-01-15/ Only 15% "all-electric" sale last year, how is this tipping point?