How efficient? Recharging EVs with diesel generators | Auto Expert John Cadogan

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[@AutoExpertJC]

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[@salwaneleyland5874]

Ah you manages to have found the derv electric try sarah tops genetator phill and therapist yes its a water feacher creature feature film. Is it king dongo or bill a bongo. Is tat that tamborines yes said its a small pit stop. Yes 90m to refules see hope theres a ute tilly lights on and i blue out back fused cons yes golden red blue fews oples ears peeks efficient blue ridges a alla mains sam bone and boomber rang its kanga brews. Ah they instaled it in walk about creek. Yez zoo lander walter rally said have a walk about while my dc9 cruschesses yes crushed ego hocks hooks rails tails jenny yes said no solar plexus. I alas john do you know dads the 3pin piano is on my foot. Na its just a foot n half inch cock. Any diggeri does truth i have no idea danger mouse peas bodys pen folds. I folds paper generator you still need bio fuels oils. Bms yes BJS BHS im sure you will work it out wambats kimberlies clearks shoes yes brown n black snakes ah alead yes keeps batfings on a chain. Yes cammel cutters pull you out PP9 bb9 bbdroid two balls and a half cast moon. Ab- oridgional yes murry walkers gant gallar. Trains for a short cut 4k miles. Its a flat line said walter water railies yes bousers on the back. In a fish annts seas yes ev sex on fires. Just ute aye lies ing words. Body language steel manning one pays attention and two don't care jordan on the left See and i know? You cannot buy goodwill hunting. Here a revolver its a colt 45 every time you mention semites i load a slug. See i know duglus murry is jews loves life gay. Yes but he hates like a dame. Hamsa hams sir yes cammeron screwed a pigs head but you persicute other humans cutures. See. Its capital values profits rabies. Bob marley a song. Rob ies rob ors max see millions by graves excedus. Exsadus exodus. Yes cancer of the larynx. Thors axe ban hammer. Redemption Song" is a song by Bob Marley. It is the final track on Bob Marley & the Wailers' ninth album, Uprising, produced by Chris Blackwell and released by Island Records. The song is considered one of Marley's greatest works. Some key lyrics derived from a speech given by the Pan-Africanist orator Marcus Garvey entitled "The Work That Has Been Done". At the time he wrote the song, circa 1979, Bob Marley had been diagnosed with the cancer in his toe that later took his life. Rabies meaning israelies jews. Old pirates, yes, they rob I, Sold I to the merchant ships, Minutes after they took I From the bottomless pit. But my hand was made strong By the hand of the Almighty. We forward in this generation Triumphantly. Won't you help to sing These songs of freedom? 'Cause all I ever have: Redemption songs, Redemption songs. Emancipate yourselves from mental slavery, None but ourselves can free our minds. Have no fear for atomic energy, 'Cause none of them can stop the time. How long shall they kill our prophets, While we stand aside and look? Ooh! Some say it's just a part of it, We've got to fulfill the Book. Won't you help to sing These songs of freedom? 'Cause all I ever have: Redemption songs, Redemption songs, Redemption songs. Emancipate yourselves from mental slavery, None but ourselves can free our minds. Wo! Have no fear for atomic energy, 'Cause none of them-a can-a stop-a the time. How long shall they kill our prophets, While we stand aside and look? Yes, some say it's just a part of it, We've got to fulfill the book. Won't you have to sing These songs of freedom? 'Cause all I ever had, Redemption songs, All I ever had, Redemption songs, These songs of freedom, Songs of freedom. Excodus 7. 14 bets on line 21. See john book 3 they were triplets in minds.

[@larryjimbob]

"We need to stop burning fossil fuels and pumping pollution into the atmosphere" G McGarvie. It'd be great if they stopped spraying who knows what in lines across the sky behind planes blocking out the sunlight. Nobody asked for it and no doubt it will have consequences. For example, is this artificial cloud cover actually causing a blanketing affect trapping in heat? What is falling to the ground and into the soil and waterways from this process? I understand that the 'trails' contain fine aluminium particles and barium to name just two. Is this occurring down under John? I'm frickin sick of it happen over UK skies 🤬😔

[@cudadog11]

John, when are you going to bring us your thoughts on Edison Motors?

[@wandameadows5736]

@AutoExpertJC - This could actually show people how ridiculous the idea of EVs are because most of the worlds power generation comes from fossil fuels anyway. Maybe people would say "Why am I using fossil fuels to generate another kind of power to run my automobile instead of just putting fossil fuels in my automobile?". I know its a stretch to think the EV & Environmental crowd can use critical thinking though.

[@kensutherland414]

@@wandameadows5736 You’re preaching to the choir there mate. If brain cells were handed out free with coffee per idiot how many coffee’s would be needed to eliminate idiocy. All of them. Or Some. Or Government policy won’t allow that.

[@kensweet6022]

Greetings from the UK (England) John. That has got to be the most succinct and polite chastisement I have ever been witness to. Absolutely brilliantly done sir. Hats off to you. 😊🏴󠁧󠁢󠁥󠁮󠁧󠁿🇬🇧🇦🇺

[@Baerchenization]

"Succinct" means concise, not verbose, duh.

[@fredfred2363]

Had to be verbose in a succinct way for the EVangelists to comprehend. Agreed though 👍🏻🇬🇧

[@kensweet6022]

​@@Baerchenization "Briefly & clearly expressed".

[@fwqkaw]

@@Baerchenization ?

[@robertgreen9614]

I was on another Australian website and some Muppet in the comments claimed it only took 1.25 L of diesel to fully recharge an average EV battery. Can't fix stupid.

[@jakefriesenjake]

Wow!

[@cousinfester4621]

Easy peasy math. Just convert the therms in the 1.25L to kilowatts and ignore all the inefficiencies and losses in the diesel engine, generator, rectifier and battery - and presto! Ummmmmmmmmm wait. It still doesn't come out right.

[@1Longranger]

Wow! Over unity here we come!

[@joecraig6056]

I'm presuming that claim was a calculated trolling lie

[@kadmow]

@@cousinfester4621 - did you do it for the muppets, they obviously can't "math" as they are mere "puppets".. Say ~10kWh of chemical energy in a Litre of Diesel.. at ~ 0.41(diesel eff.)*0.85 (gen/charge eff.)*10 (kWh) we are left with 3.5kWh in the battery per litre of diesel burned.. (That is a pretty conservative amount - probably around the 2.5 mark for most) Now the muppets (Bert, Ernie, Kermit and the Cookie Monster) and can see that it takes ~20Litres of Diesel to do the job (nominal 65kWh battery)

[@thedevilsworkshop7720]

I live in a small country town in the middle of nowhere . Two years ago, they put in an electric car charger . In the last 2 years, 2 cars have been charged there . One of them caught fire . And now it sits there gathering dust . 😂

[@williammurphy6104]

What city is that?

[@michaelsimpson9779]

That, is bloody hilarious...

[@nikspanakis]

That's good statistics...

[@leisuresuitlaz1710]

Was it a Holden owner trying to get cheap petrol 😂

[@SteveEddy-od7fb]

Yes I live in Western Washington state and 1 of the Indian Tribes put like 20 Tesla Electric vehicle charging stations it's about 300 ft from the I-5 freeway and I drive by it 3 times a week and never see more than 1 car there at a time

[@thewholls7176]

Diesel charging of an EV is kinda like a Vegan sneaking in the odd Big Mac here and there……..

[@tomparker5000]

I note that every vegan I've ever met plays with his/her vegetables more than they eat them.

[@thewholls7176]

@@tomparker5000 On that note......... I used to run retail pharmacies back when we did photo processing and I can tell you what people do with cucumbers and carrots will either boggle your mind or indefinitely incentivise you to always bring your own salad to the next BBQ........

[@peterbishop1933]

Excellent video The ev evangelists are just absolutely blind. 😂😂😂😂😂

[@honggao9610]

some people just like EVs, why assume every EV driver don’t know power plants still burn coal

[@anomamos9095]

This joke only works if macas actually use animal products in any of their products. Eat Z bugs!

[@philtait62]

As a Coal train driver I appreciate your understanding of the diesel electric locomotive. Certainly about tractive effort. They are not produced for efficiency.

[@eyerollthereforeiam1709]

I've heard John say that, it's good to have confirmation from someone in the business.

[@AutoExpertJC]

Dude, when I was an engineer, I worked in the railways. That's 'in the business'.

[@maddhatter3564]

too many fall for the 1 ton of frieght 100 miles on a gallon." they think the train as a whole gets 100mpg. I ask them "then why do they hold nearly 8000 gallons of fuel?

[@drcovell]

Has anyone EVER done an environmental investigation about the impacts of the exhaust of a steam-powered locomotive vs. diesel. Would be interesting, the environmental impact of an external combustion engine compared to internal combustion. Down Under they should modernize and keep steam locomotive production updated: Australia has a LOT of coal but damn little oil! It would also be available if”for transportation if we have a Solar Storm so big that it knocks out the power grids.

[@MattBlack6]

A little bit of Friday afternoon fun poking at The Cult members. Great stuff.

[@krissteel4074]

Funny as it is, arguing with people who are extremely committed to a faith is usually a bit of a fools errand. Especially when it gets down to science-faith and you realise the debate from the other side is either just making shit up or some kind of 'bad faith' actor who's got ulterior motives. Which in this case I suspect the PRO side is some kind of monetary or career goal kicking or whatever the heck they call it now. I just wonder how long it goes for? Once the off-gassing and heat dies down from a safe distance, then compliment them on the large bonfire they'd been driving around in, yes that was an impressive inferno

[@andrewsarchus6036]

Meanwhile Cadogan is a Thunberg-esque Klimate Kult high priest.

[@MattBlack6]

​@@andrewsarchus6036your comment comes with an offer to translate to English.

[@tomparker5000]

​@@andrewsarchus6036the globe can't be warming when it's actually a flat disc, right?

[@andrewsarchus6036]

@@tomparker5000 The top of your village idiot head is a flat disc.

[@jim373]

In a previous life as an engineer specifying charging systems for telecoms installations for a quick and dirty estimate of likely sizing requirements for a system (before doing the full sums for a real set of devices) was to assume rectifier efficiency of 80% and battery charging efficiency also 80% giving a system efficiency of 64%. This normally provided a reasonable estimate taking into consideration things like ageing, temperature variations, etc. for a system expected to last 10+ years. So my quick and dirty starting point for a 74kWh battery would be I need an input of at least 115kW. I was also involved in installing some remote generator packs for comms sites on some remote southern Atlantic Islands, these included a pair of generators, a massive fuel bunker, plus a massive oil reservoir to enable the generators, between them, to run continuously with auto changeovers every 12 hours. This allowed the off load generator to have a bit of automated maintenance and oil cleaning and replacement so it only required a human visit for maintenance every 6 months and a return to workshop every three years. These systems were not designed with efficiency and the primary concern, reliability and longevity where equal number one, with efficiency a distant number 3. I have never understood how people don't appear to be able to grasp that to do work (even if this work is 'only' transferring energy from one state to another) energy has to be used to do this.

[@Turnipstalk]

While you are correct, the advent of modern semiconductors means rectification efficiency is upwards of 90% (anecdotally my converter just gets a slightly warm heatsink, no fan, when charging at 3.6kW and about the same when delivering 4kW off rhe roof to the grid, certainly not the 700W or so you suggest.) Looking at generation versus battery charging, I see around a 10% loss in cool weather between charger and car battery. So today the system efficiency for me at least seems to be around 85%.

[@jim373]

@@Turnipstalk Are you taking into account ageing of the batteries and diesel engines over a period of say 10 years? I hope things have got better since the 1990s but I would be very surprised if this is by more than a few percent, when including ageing. One thing I did notice before retiring is that many components got cheaper and more efficient in the short term, but if long life was also specified (including penalties for premature failure) one tended to return back to where one started! Systems for heavy loads and long life in remote places and needing to operate with minimum maintenance have to have greater margins, otherwise the maintenance and replacement costs make them unviable

[@garyspencersalt9449]

@@Turnipstalk I agree that modern electronics has improved an efficiency but I assume to be true that solar panels are operating 24/7. Well Chris Bowen got that right

[@retrozmachine1189]

Synchronous rectification is more efficient if properly implemented. Miracles still aren't performed though so we are looking at 90% to 95%.

[@peeemm2032]

Most of the people commenting here (and unfortunately most of those responsible for making public policy about energy and EVs) don't have a background in STEM, don't understand physics, and probably don't really know what energy is. Some of them don't even know the difference between a kWhr and a kW..... If you worked in the field back in the 90s you were probably dealing with lead/acid batteries? Modern Li-Ion batteries seem to have a round trip efficiency of better than 90%, depending on how they are charged. Modern switched mode power supplies for DC charging of EVs have a (manufacturer specified) efficiency of around 93%.....

[@gmattk]

There’s a new franchise. Jims mobile car charging.

[@stulop]

In some countries that service already exists.

[@greeneyesms]

Jim shows up in an RV so the driver can sleep while it is charging.

[@TheLeftRbabieskillers]

😂

[@cedhome7945]

The AA in Britain already comes out to idiots who run out of charge....

[@laoma4131]

Sounds good to me. Maybe some sort of diesel ute that can plug into ev with fast charge. Have a sleep while charging. Wow great idea 😀

[@jesus_built_my_hotrod]

This video should be mandatory viewing for every high school student on the planet.

[@jesus_built_my_hotrod]

@@jonasstahl9826 then you can add in the carbon output of manufacturing all those solar arrays and batteries. Nice try at gaslighting the second law of thermodynamics. But you failed.

[@jesus_built_my_hotrod]

@@jonasstahl9826 smoke and mirrors does not make you pertinent

[@ericmccolough2482]

Cadigans critic will be getting cash from Albo to continue the scam

[@davidhancock91]

I recharge my diesel with diesel about once a month. That diesel also runs the alternator which charges the 12v battery which seems to run the lights and stereo quite well.😅 I find it works brilliantly for me.😂

[@AutoExpertJC]

Heresy!

[@davidhancock91]

John i know you are not an Audi fan but my c7.5 A6 3L Biturbo diesel is a beauty. Well maintained, reliable, powerful and economical. 5.6l per 100, at 110kph . Outstanding in my opinion. With more power and torque than most V8s.

[@maureenharrington7923]

I love when it is Science - Facts, Figures & Reality Day in the classroom of JC. Very enjoyable , thank you.

[@richardcrowell284]

How much fuel gets used by the tanker to fill that tank?

[@mick1535]

IF it's an electric tanker, it can recharge, as I'm sure it won't make it back to where ever it came from, and drain their battery Cheers

[@johnlaube3459]

Bugger more reality

[@annieluctor7524]

And the cost of buying and installing that genny?

[@wayland7150]

That's irrelevant because the charging station could instead be a fuel pump where the car diesel can fill up.

[@TS-jd8vh]

And the extra diesel used to dig up materials for, build, and transport the generator. And then extra again to build another tanker that has to be made to fill the lost capacity of regular diesel delivery. And the extra diesel that has to be extracted, refined, and delivered via the ocean for all the above processes to happen in the first place. Oh and then even more diesel that has to be produced and consumed to mine for and produce the 500kg battery - not to mention all the extra diesel that went into building that lithium mine. And then diesel becomes more expensive because supply can’t meet demand. And then we dig up and refine more diesel with machines that run on diesel. Keep pulling the thread.. Small ev’s are great for short trips in big cities, and not much else. But there’s money to be made in BS.

[@AndrewMolnar-hk2zp]

Glad I’m not Macca G. I am waiting to take delivery of an EV6 GT line to take advantage of the tax benefits. I have ordered custom plates ‘GAS CHRGD’ just to piss off the EVangelists by highlighting that the majority of WA’s power generation is from natural gas.

[@avid6186]

Are you sure it's gas chrgd and not coal pwrd?

[@AndrewMolnar-hk2zp]

⁠@@avid6186I can’t be sure, It’s coal, gas and some renewables. The Perth power network is over 50% gas generation so it’s the most accurate and I’m a Control Room Operator at a gas plant so Gas Charged suits best.

[@OTPulse]

​@AndrewMolnar-hk2zp Unfortunately, for you, most newer EV drivers usually don't give two shits about how the car gets charged as long as the methods they choose to recharge the battery is cheaper than buying Peteol/Diesel. Not too sure about the EV crowd in WA but you likely rarely upset anyone. I'm only keen on getting an EV if the slow speed audio warning can be the sound of a low rev V8.

[@hargeaux]

If you're buying an EV for tax benefits, you're likely to be able to charge the EV6 by panels, either at home, or work. Right?

[@pantoqwerty]

@@hargeaux if you’re buying an EV for the tax benefits don’t forget the massive depreciation.

[@stevenwithanS]

Back in the early 80's, a VW Jetta diesel would go over 100 km on 4.5 liters. With a 55 liter tank, it would go about 1,200 km. We've gone backwards.

[@SteveEddy-od7fb]

Yes the little VW diesel was very fuel efficient I worked on a bunch of them in the 80s and 90s

[@SteveEddy-od7fb]

The little Mercedes Diesel was also very efficient!!!

[@Juancheros]

For the sake of other viewers, following on John's example in the video, the Ionic-5 made 350Kms from 25 Liters of diesel on the Copco generator. Hence the 80's Jetta diesel would do 555kms on the same 25 Liters of diesel.

[@Doggieman1111]

Here's an idea, carry the diesel generator around in the trunk of the car... that way you can constantly recharge the battery with the diesel generator! Genius!

[@bentullett6068]

I remember when the proper trio from Top Gear built that EV and fitted the diesel generator in the back of it.

[@AndieBlack13]

What about the big wind turbine that pops into the wind-stream of your moving car to recharge your car???

[@diceman999]

Since the diesel electric generator is more efficient than the diesel, you should be able to create a full tank of diesel

[@eyerollthereforeiam1709]

Here's how to do it.. Have a gasoline or diesel generator running in the back seat. Also, very important, keep the windows closed for maximize aerodynamic efficiency! That will thin out the cult.

[@alli3219]

That's a true hybrid... 😂

[@Ernst12]

John, I have pasted this on my FB page and it turns out that the science and electrical concept is OK. The main problem is that one gets a 34kWh shot of energy to just last 200 km for the average EV and this is, in my view, inadequate because it doesn't make sense to have to spend 1 hour charging an EV/200 km. Also, there is only enough energy in the fully charged battery for charging 2 EVs and after this, unless the sun is shining, the battery needs to be recharged by a 24 kW diesel generator. ========== The NRMA's electric vehicle charging station in the outback is, in fact, fully powered by solar but with a backup diesel generator is used, featured in Crikey of all places so we need to put our seatbelts on. What was claimed. The NRMA's electric vehicle charging station in the outback is, in fact, fully powered by solar but with a backup diesel generator and that solar panels on the station’s roof are the primary power source for the chargers. So, what is the truth? The EV station is NRMA’s off-grid prototype for remote charging, using solar power with a backup fuel generator as part of testing to help develop a national network. The station is in a remote part of the Northern Territory, about 200km south of Alice Springs. There are a number of articles on this topic, but I will summarise the important information here and what this means to the EV user. Some of the articles mention that the PV solar panels on the roof of the charging station facility provides the energy for EV charging and some other articles use slightly different wording, claiming that PV solar panels provide the INITITAL energy which means that the facility also has what is claimed to be 70-100 kWh battery. Let’s say, irrespective whether this battery is 70 or 100 kWh, the reality is that all Lithium-ion batteries like to be kept between a 20-80% SoC (state of charge), which to me suggests that the battery is rated at 100 kWh but only 70% of its SoC range is used on practice for a longest possible battery life and the least damage from consecutive charging cycles. The renewable power comes from a 50-60 kW ground solar array to charge the battery. A 60 kVA diesel generator is used for backup. The voltage is not provided but my guess is that it is 400V which must be the same voltage as the battery for DC charging the EV. Based on the voltage the diesel backup energy power source would then have a capacity of 24 kW which would be used to charge the battery when the sun isn’t shining or on cloudy days. With this arrangement the diesel backup could charge the depleted battery in about 3 hours. Well, that’s all nice, except as we look at the substance of the EV charging facility, the power from the battery is used to feed two charging points each providing 34 kWh of energy. Note, this is kWh and not kW which means that an EV connected to one of the charging points would receive 34 kWh energy for charging the EV battery and that’s it. When charging EV batteries with either AC or DC charging there is a 5% loss, that is the energy absorbed by the battery as reported by the EVs computer. It is claimed that the one-shot charge of 34 kWh is enough to travel 200 km. This assertion is reasonable if the efficiency of the EV is around 15 kWh/100 km. However, what is not mentioned is that there are some EVs that are less efficient and require, say, up to 20 kWh/100 km. But let’s stick to the 15 kW/100km figure and say that the distance one can travel is 200 km which necessitates 1 EV charging point every 200 km but in practice, depending on varying efficiencies of EVs, a more necessary distance is every 150 km. In relation to EV efficiency and range, if one uses air-conditioning (that is the heat pump in the vehicle), the ambient temperature is over 35 degrees necessitating the battery to be cooled, and the onboard infotainment system is use, this can result in a further reduction of 15-30% of the range. That’s nice until we get to the ticklish issue of charging times. The MS Ai Copilot mentioned that the charging time is 15 minutes, but I disputed this and mentioned to the Copilot that it would take an hour to charge any EV battery irrespective of capacity. The Copilot agreed that it was wrong with the 15 minute-charging time. So, what does all this imply for the EV user? It means that travelling on remote highways in Australia with EV charging points every 150 km (say) and 34 kWh DC charging, one has waste one hour/200 km just for charging the EV, provided that there are no charging queues at the facility. It seems to me that once the EVs become entrenched or forced upon us, our personal time no longer matters and if we are employees of a company, much work time would be wasted standing beside EVs getting charged. There is no mention of price per kWh for these charging points, but it goes without saying that the price would carry a premium based on the extraordinary effort to provide the energy at these places. In the UK many of the on-route charging points charge between 68-82 p per kWh which makes EV charging per distance travelled more expensive compared with the same distance travelled with an ICE car of similar size. Other annoying issues in the UK, and most likely also in Australia, were that at any time 30% of the chargers are not functioning, there are problems with the connectors, the ID authentication process does not always go smoothly, one needs to download an app for every EV charging company, lower charging rates below indicated maximum charging rates are common and queues can mean that charging can waste several hours of time. On all BMW EVs, and possibly other EV models, there is a battery protection algorithm which stipulates a limit of 7 fast consecutive charging occurrences which was not interrupted by a low charging level occasion - this is done to protect the life of the battery. If one is forced to DC charge the battery with smaller energy levels, one can quickly run into the maximum allowed fast charges problem. EV travelling in distant places also carries other risks such as tyre failure which is extremely common on EVs and the problem of getting it replaced. Because of the weight of the battery and the EV compared with ICE cars, it may also be necessary to change the tyres every 10,000-15,000 km. Because of the low-profile tyres and extra EV weight, the rubber on EV tyres is often softer compared with what is used for ICE cars and hence the wear can be greater on rough country roads. Should anything go wrong with the EV in the outback, finding expertise to fix the problem might be close to zero.

[@EleanorPeterson]

So, in summary: 🤭

[@paulmannix1760]

Last sentence sums it up beautifully!

[@thehairygolfer]

@@EleanorPeterson In summary - evs are so much shite. I think that is what he said.

[@wayland7150]

This sounds like anyone making such a journey in an EV is a pioneering explorer, like flying across the Atlantic in a biplane.

[@dirkvornholt2507]

The last sentence is true for ICE vehicles, too, unless you pull your personal workshop in a trailer behind your car.

[@Blanchy10]

The diesel also has to be transported to the charger by diesel truck.

[@greeneyesms]

Or by unicorns.

[@javic1979]

it only works out to be less than 2-3% for a 1000-1500km delivery because road trains move the fuel in bulk to the bush and carry over 100,000L

[@hargeaux]

There are nearby Road houses which would be getting fuel delivered already, anyway

[@JamesSmith-qs4hx]

No the delivery truck is powered by channelling the energy of Happy Thoughts. 😜🤪😝🤪😜

[@thetowndrunk988]

I’ve really missed the cold, hard facts from you, JC, especially when they’re mixed with a hint of sarcasm. If you can ever run for Prime Minster of earth, you have my vote.

[@Barry-tp2vd]

Great idea . Let's get him cloned and us kiwis can have a new leader as well 😊

[@Horatio1886build]

Oh yes ( !)Way to go my Master of all things mechanical and combustion.

[@tomparker5000]

I love that fast-charging from the NRMA's mystery-sized battery damages both the donor battery, and the vehicle's battery. How nice! I exclaim.

[@dirkvornholt2507]

As an engineer, I assume it's no problem to dimension the battery and the load so it will not cause damage to the batteries. My EV has around 40% of DC fast charging, 10 years old and 307k kilometers on the dash. The battery is still fine, so I assume other engineers have also found a way to do that.

[@hargeaux]

Everything gets damaged by use. Do you think your conventional engine doesn't get damaged the first time it turns over?

[@HuFlungDung2]

​@@dirkvornholt2507Truth be told, you have no clue how 'fine' your battery is, engineer or not. Other engineers will inform you that every discharge/recharge cycle degrades the battery at some fraction of its capacity when freshly built. Same goes for 12v automobile batteries: they work great until the moment they don't.

[@dirkvornholt2507]

@HuFlungDung2 Certainly, every charge cycle will degrade a battery, just like any rotation of the crankshaft causes wear on any of the moving components of an ICE. The point is that the degradation is almost not noticeable. My battery now has 1200 cycles and driven 307TKM, and all the parameters are fine. The comparison to a lead acid starter battery is completely nonsense as you can't check cell voltages, and on modern starter batteries, you can't even check or refill acid levels. It's a black box, unlike an EV battery that can be diagnosed using onboard methods or OBD2 dongles.

[@hargeaux]

@@HuFlungDung2 actually, you do know the state of health of your battery. That's information the BMS can give.

[@subwayfacemelt4325]

Number 5 is ALIVE!!

[@andrewmcleod9312]

Gold statement !!

[@thatdave86]

In the outback ,one could carry a spare 20 litres of diesel for the diesel vehicle ,you can't carry 20 litres of power for the EV

[@theairstig9164]

The best you could do it’s 8kwh from a portable source like a bluetti but it would take ages to transfer … like 90 minutes. Plus 8kwh is 50 kms. It’s easier to just stop and recharge more often. Or take a different car

[@peeemm2032]

I had an uncle who used to load a 200ltr drum of fuel into the back of his falcon ute when he went into the bush. That's about a 1400km range extension for something like a 200kg weight penalty....

[@244col]

There is a Tesla getting around town with number plates 'ON COAL' . Appropriate as it is in the Latrobe Valley where Victoria's electricity is generated from brown coal.

[@dirkvornholt2507]

Seems fun to drive.

[@leisuresuitlaz1710]

Yeh my Model Y is literally hybrid it runs on both coal and solar too and still cheaper than filling up with the current petrol prices 😂😂😂

[@fredfred2363]

"It doesn't matter whos f'king lippy it is dude" had me on the floor! 🤣😂🤣 Should be on stage with lines like that!

lippy is petroleum based. In fact, most of these save the Earth harpies have enough petroleum based make up on their faces to season a wok.

[@EddyWoon]

Great work here John. This had reminded me of my first class in engineering, where the lecturer was explaining the fundamenrals of thermodynamic.

[@Malcolm-nj8ky]

First class, 100% and a gold star.

[@sal5440]

What??? How the hell would diesel be more efficient being burned in a generator rather than the engine moving your vehicle.

[@seegee7728]

Can you do a story on the lithium battery recycling plant that caught fire in England 3 days ago that took 2 days to quell.

[@alanmartin7315]

Scotland actually

[@RealButcher]

Still burning... 😢😂

[@vanadium0101]

Add a story on the oil pits that burnt for Years After iraki army left Koweït. It took jet engines to stop the fires.

[@wizzyno1566]

He's back! As a fellow oldie I was a bit worried father time had caught up with you in a particularly bad way.

[@MothershipVideos]

Good work John.

[@John_L]

Superb! Indisputable engineering facts presented with a thoroughly enjoyable command of the vernacular.

[@ScottyPilot]

Irony that a marine scientist wouldn't ask why great big cargo ships use direct diesel drives to the propellor shafts in an industry where maximum fuel efficiency is a consideration instead of his favorite diesel electric? With water providing some slip direct drive works, hard to do that with rails.

[@tigertiger1699]

Very well put John👍🙏

[@OctavianDunare]

Phew, I was just wondering today if you kicked the bucket or something... 😂

[@patrickcallahan2210]

A quality run-through with the napkin math. I will offer that for the folks in 'Merica like me without the option of good diesel consumer vehicles, having the option to choose a diesel series hybrid system for transport would be a huge upgrade from what we currently have. As an example, my last SUV got 15 mpg on a good day (15.7 l/100 km) and 9 mpg when towing (26 l/100 km) which is atrocious. Hearing you guys talk about 5-6 l/100 km is a damn dream, lol. There is also something to be said about the flexibility that the EV/hybrid solution offers. What you are describing is the also the worst case for the EV (even though you were quite generous in your assumptions) because once things start charging off solar/hydro/nuclear it will give a major boost to the EV. By contrast, there is no real upside for the pure diesel vehicle as you are describing the optimal use case. Also, when you add in the added complexity of the engine/transmission (DPF, emission lying, etc), that brings and the benefits of the hybrid/EV start to shine a bit more. I'm not saying EVs are perfect; they are not, but they can at least help a bit (or at least make me feel a bit better about destroying the planet one burger at a time). p.s. I'm fat, so maybe 2-3 burgers at a time... p.p.s. I remember in college taking a class called "Alternative Energy Resources" and being told that hydro was considered a renewable resource because they couldn't build dams anymore, lol.

[@gregorymcevoy6018]

Well done John good job I applaud your honest work 👍

[@waynerobertson511]

Someone should actually do this experiment. Charge the EV from a diesel generator, give the ICE vehicle an equal amount of fuel and then send them on their way. I am quite happy with the theory presented here. But, a demonstration is always better to convince people.

[@AutoExpertJC]

It's not a 'theory'. You don't need to run an experiment when you know the outcome...

[@waynerobertson511]

@@AutoExpertJC In Science, a theory is something that is backed up by experimental evidence. e.g. Theory of Relativity, Quantum Theory etc.. Otherwise, it is just an idea i.e. a hypothesis. Also, one thing about experimental evidence, is that it must be repeatable. Therefore, I see no problem repeating experiments to make a point.

[@javic1979]

@@AutoExpertJC I tried to get a model 3 owner to bet money i could tow a model 3 further with my 2015 diesel ute than he could drive. he was all keen until he started crunching some numbers

[@AutoExpertJC]

Please don't test gravity this way, off the balcony. (No need; poor outcome.)

[@samsammy2535]

its already been done the ev used less diesel google it.

[@HarryLime49]

Driving into the outback in an EV is the definition of lunacy.

[@theairstig9164]

I know someone who did an anti clockwise lap of Australia with an outboard tank strapped on top of her Kawasaki GT550. She also had a dog with her and was dodging park rangers because she couldn’t afford the camping fees. That is even more on the far edge of the bell curve

[@garreysellars5525]

Yep Lost in the dark😅

[@zwieseler]

Look up a story in the Kalgoorlie Miner about a guy who drove his Tesla over the Great Central Road from Alice to Laverton….

[@maxenielsen]

Well put! Not only correct but presented with lovely, satisfying, sarcastic good humor. Thank you!

[@kieranokeeffe1363]

For everyone that hates you John there are more that ❤️ you dude, much respect from 🇬🇧 🇮🇪

[@dgs0011]

I’m going to to keep my diesel ice LC, equipped with a bbar , and continue crying into my cornflakes at the price of diesel.

[@napierpaxman]

....whilst being left at the lights by Nissian Leaf drivers - been there! :D

[@dgs0011]

@@napierpaxman Lol yeah I don’t really venture into the mass population centres . It definitely is no rocket is true

[@drcovell]

Better start collecting used cooking oil from your local restaurants. You’ll need to make your own biodiesel eventually.

[@jimgraham6722]

Thanks John, I've had EVs for two years now. Never had to use a Diesel generator to charge. But if perchance I had to, I wouldn't hesitate to do so. At this stage I mainly charge at home, but when out and about, don't seem to be having any problems finding charge points when needed. Consequently I don't anticipate a need for Diesel charging ever arising. The best bit of driving an EV is that I can now clearly hear the quieter passages of Beethoven's piano concerto #5 (I know not too everyone's taste) but am also saving about $3K pa in fuel costs. Neat.

[@napierpaxman]

Yes - but aparently a slow. clattering, clunky diesel is FAR better then the Farrari beating Tesla ;)

[@michaelw6173]

There are 2 fast chargers rated at 75kW giving a total of 150kW, but there are 4 charging plugs. If a group of 4 EV's are travelling together and they all recharge at the same time, they only get 37.5kW's each. The diesel generator will always be in use. Also, the diesel generator will use the same amount of fuel per 100kms of recharge (maybe more) as the Palisade does per 100kms.

[@bentullett6068]

John you are correct about the diesel electric locomotives design. In the UK back in the 1950's and 1960's there were two competing designs of traction on heavy freight/passengers locomotives one was diesel hydraulic using hydraulic transmission powered bogies and the other was diesel electric. The hydraulic ones were great when working but as you correctly stated they weren't reliable compared to the diesel electric ones.

[@annieluctor7524]

Good one, JC, thanks. I know the square root of bugger-all about electricity, so thanks for taking the time to explain it. Did they include the cost of buying and installing the genny?😁

[@andyxox4168]

The most important issue is to ensure that there is a ready supply of drinking water as users may find themselves stranded waiting for a charge!

[@AutoExpertJC]

Lovely place to spend an hour, mid-summer

[@1Longranger]

A reverse osmosis plant (run by a diesel generator, no less) will keep those ev folks hydrated. Just don't forget the electrolytes.

[@Shannow67]

I appreciate your generous, excessively generous simplification. 1/3 century as a Mech Eng, myself

[@user-yq4sp5ij6u]

Thank you for finally clearing up my conundrum regarding diesel/electric trains.

[@user-qy8xl6wo2u]

Good job Johnno. Have you heard about the new Chinese ute coming out with onboard diesel generator, a la diesel electric locomotive, and the option of 2 or 4 wheel electric drive. Can't remember the name...maybe Quin Yao Electro Motive Division. 🙄

[@atnit86]

Hey John, I’d love you to do an analysis of the Edison Motors heavy vehicle hybrid system.

[@mickkelly6389]

Edison looks good,but very much horse's for courses.☺

[@jkholley1118]

Watch Wes Work did a great video about Edison showing how it doesn't work in most situations. Then Edison did a video trying to slam Wes and Wes pulled it down. I would also like to see John do a factual video on their concept as he would not take their crap.

[@javic1979]

the idea is to use a smaller diesel engine and run it constant while the battery does the heavy lifting on steep hills and use regen to maintain speed and add charge to the battery. its good for logging trucks but not hwy trucks. really depends on the application but heaps of ev worshippers have no idea. edison truck company seems genuine in trying to build a better truck for non hwy applications

[@napierpaxman]

But he won't because it's too good ;)

[@timothykeith1367]

I think Edison's truck would work only as such as charging is cheap as in hydo, but when the battery was depleted the advantage would cease.

[@dryster123]

Very good discussion, I'm a retired mechanical engineer, I enjoyed your analysis there, even if you were far too kind with the numbers. Interesting that you chose the Ioniq, I've heard that the replacement batteries cost more than the original vehicle.

[@orchidhouse297]

Greetings from some random guy in Essex, UK. Thanks for the light hearted way you present the science but still remain serious. I want to ask - what if we skip the battery and power electric motor(s) directly from a gen. set? I know the reasons related to high torque at low revs, and how the diesel engine runs at higher revs to drive the generator to create the electrical power needed. How does it apply to a car the size of a SUV?

[@anomamos9095]

9:36 the alternative to a mechanical or electric transmission is hydraulic. Hydraulic transmissions have been used in freight trains but fell out of favour but they are still used in some heavy construction equipment .

[@AutoExpertJC]

Yes - lots of hydraulic drives in mining

[@wayland7150]

Yeah, I worked on a combine harvester with that transmission. The wheel hubs had a couple of hydraulic pipes coming off them and nothing else. Very simple but quite difficult to attach wheel speed sensors to.

[@napierpaxman]

Electric was more efficient which is why it won out

[@anomamos9095]

@@napierpaxman only the because electric cables don’t burst and spew oil everywhere. Actually I’m not sure which is the most efficient in converting horse power to traction but electric drives win out on maintenance costs and compactness.

[@mnkybndit]

He is a professional, though. We could ask him how many dolphins it takes to pull a barge across a river.

[@BENVOLIO9]

well said John and well played, great video

[@richardcharlton8259]

I just love the way John you just baffle these so called experts with facts awesome

[@Uncle-Duncan-Shack]

isle 2? They added a second isle to Nullarbor? Excellent video John. Just the right topic and discussion to further fuel my distaste for the EV and Solar utopia. I have even been told that shipping is a viable medium for battery power implementation. The fantasies that people want to believe and live in is extraordinary, Disney could not make this stuff up. Take care, Duncan

[@markseehawer3762]

I gree 100% can't stand the EV BS either. I've beena mevhanic for a very long time and not only do I hate EV's i also hate the computer intergration of multiple systems. The old rule still stands the more complex somthing becomes the higher the probability of failure and the higher the repaier cost. There is way to much intergration in all new cars not just EV shite boxes. I think the buying public is craving simpler cars and trucks.

[@Uncle-Duncan-Shack]

@@markseehawer3762 Gday mate, Yeah, not many have to yet work out that when you buy an ev, all you paid for is the car, and the government paid for the battery. It is totally artificial. Yeah, modern engines are awful. The diesels suffer from all the emissions stuff on them, and the gasoline engines suffer from direct injection and low tension piston rings.

[@letsseeif]

John. I agree with your 'rise of man from the apes'. We used to call kids at school like John, 'know alls'.

[@brad.cooper]

Love your vids, and I also love my EV - but I didn't buy it to save the planet, I bought it because it's awesome. Also, I only use it around town and would always go back to my ICE for long trips. Would take a special kind of person to drag an EV across the Nullarbor!

[@RhysLloyd]

Yeah I’m looking at getting an EV as a town runabout-not for “green” credentials, but because I’m sick of paying through the nose for petrol. Any trip out of town will be in the diesel Prado. Also it’s to give the wife something shiny to drive so she can stop thrashing the poor old Prado because she treats the throttle like a switch: it’s on or off, no “throttling” 😂

[@gordonmichaellee]

Hi John. I’m not sure if you remember but I suggested this exact point to you a year or so ago. My statement was something along the lines of “different energy input requirements to charge from 20% to 40% than 70% to 90%”. My understanding was that due to internal resistance etc. more energy was required to charge for the later due to the requirement to dissipate the heat and that this energy ( to run coolers and pumps etc )would be less when the battery is in a lower state of charge. ( to counter my thoughts I can see how the rate of charging is relevant as well as state of charge ).

[@GrantfromEarth]

The difference between the emissions of a newish diesel car and that 80kw generator are not even slightly comparable. That genny is like a 1950's coal fired power station by comparison.

[@dunny614278]

Unless your car was produced by VW 😉

[@AutoExpertJC]

That is very true, Grant. Modern vehicles (for example) deliver a 95 per cent reduction in carbon-monoxide compared with the 1970s.

[@mellarner8253]

Assume is a big Adblue tank there for SCR that needs replenishing, or somebody taking the p*** as well?

[@YZJB]

@@mellarner8253there are no emissions regulations in Australia for off-road vehicles/engines

[@michellekonzack]

This maybe true, if you use an El-Cheapo China-Böller, but todays bigger GenSets are highly optimized like a car engine and have the same emission values like a car. Oh, I use a Citroen Diesel Car Engine (2001)with 58kW to run a two 4,5kW DC Generators and the fuel consumption is roughly 1,3l/h because the engine run only with 1500RpM while the two HydroGenerator need maximum 600RpM. My Berlingo Transporter (same engine with 58kW, no Injection and no turbo) need 6,5l/100km in the summer and 7,8l/100km in the Winter. This is a price of 18,5 Euro Cent per kW currently. With my 9kW DC GenSet it is roughly 24 Euro Cent per kW if I take the Car Diesel from the Petrol Station (1,65 Euro/l. But since I get it as farmer in big quantity delivered, I pay only 1,3€/l and then my GenSet is with 18,8 Euro/Cent in the same price as the Electricity from the Grid. However, I have 6,1kWp of solar panels currenly (deliver up to 40kWh a day in the summer which I can not even use up with an EV) and will get an upgrade with 2 times 9,9kWp. Currently I build even a small 2t Electric Tractor but the 19,8kW will be mainly used for electric heating of my house using a huge EarthBattery which is heated up over the summer. Note 19,8kWp free standing and always clean (also in the Winter) deliver at least 24.000kWh energy a year. there is enough energy for my NEVA 4x4 and my eTractor 4x4

[@shatbad2960]

Here's a crazy idea, use the diesel generator as an 'engine' to power the vehicle directly, thus cutting out the middle man! I don't think this has been done before, I'm off to the patent office.....

[@rodrigoroaduterte9415]

Ain’t those being named hybrid vehicles?

[@dirkvornholt2507]

You're too late. Even the middle man brings benefits in fuel economy. Hybrids run their ICE in optimal power point and can use regen braking.

[@delh1415]

These diesel backed up EV chargers in remote areas are a fair solution in the short to mid term. Realistically, the purpose of EV chargers on remote, long distance highways is to enable an EV owner or prospective purchaser one more reason to feel confident in the ability to do such trips. If like me, 99.9% of my annual travel is around the city/suburbs and on the routes with well placed, grid powered chargers and I would only do the Melbourne to Perth run once a decade, the lifetime use case for running my EV off cleaner energy stacks up, especially when 98% of my charging comes directly from solar and renewables.

[@rob327c]

Just finally signed up to Nord. Came to find a video for the link. The face of Nord

[@cat793cdumpy]

So where is the next closest EV charger from the nullabor.

[@weinisable]

I know of at least 2 others. The one at Caiguna uses an ICE genset, but fueled by used cooking oil !

[@billmccarthy5920]

Is the EV too heavy for the UFO to pick it up?

[@waynerobertson511]

An EV is insignificant compared to lifting pyramids.

[@dennishill8318]

Sir, you were generous, to say the least. There is probably another 10% of losses in the transformers that change the output of the generator to something that will charge the 300volt or whatever it is battery in the EV. And then there are the losses involved in converting that stored electrical energy to mechanical energy..... This was a simply wonderful video.

[@sjbechet1111]

Well done. Had a similar job of work trying to explain to the apprentice why his Hydrogen generator powered by his cars alternator wouldn't save petrol.

[@AutoExpertJC]

Always the uphill battle. Damn entropy to the pit of Hell!

[@JamesKuffner-cg2pv]

1 plus 1 equals 3 .........doh 4 ..oh shit maybe 11. Phew, nailed it. Cheers 🍻 James

[@alanmartin7315]

Brilliant. just brilliant thanks

[@subwayfacemelt4325]

Yeah baby!! That's some goooood numbers pr0n right there! And the Wordsworth was set to 'just right'. Aaaaahhhhhh. Amazing as always, that was great thanks John. Now's the time for some combustion derived stimulant and anxiolytic...

[@davidpearn4344]

Love your work John there really are so many mummets

[@SteveEddy-od7fb]

John in the 80s and 90s i did work on a lot of the small VW and Mercedes Diesel cars they were very fuel efficient some claimed that fuel mileage was over 40 mpg not bad for a small sedan

[@mikeburton7077]

Well explained!

[@MStanleyRoss]

Love your delivery John. I'd so love to hear you talking in a parliament somewhere. Keep it up..

[@ruffusdawes8203]

I hope there is a diesel generator out at Dingo Piss Creek mate. I'm heading out that way today with me cyber urinal.

[@davidpearn4344]

Your so right there is a roadtrsin that goes between Port Augusta and Leigh that is a electric primemover funny thing is it charged at Leigh Ck by a deisel gen set and at Port Augusta is charged by the grid which is powered by Whyalla power plant stoked with coal 🤣

[@domingodeanda6113]

You always kick ass man.

[@johnhegarty5194]

I really enjoyed this video, sarcasm at its finest. Kept up with most of it. 👍🏻🇦🇺

[@AutoExpertJC]

Thank you, John.

[@napierpaxman]

@@AutoExpertJC Definately - all those people enjoying supercar performance from their Teslas will be miffed that they missed out on the delights of a slow clattering diesel - poor them ;)

[@zorgonfire]

I find that its a great solution even though its less CO2 efficient than a diesel car. Deploying more batteries or solar panels just to cover the peak demand may actually emit more CO2 than a diesel as in non peak the solar energy will be wasted.

[@allanthomas5944]

Hi John I really enjoyed this video & one thing you didnt mention was how long they would be sitting in there Ev,s in the heat whist charging, compared to refueling your diesel

[@samsammy2535]

you dont sit in the heat while charging you plug in and go to the aircon shops then your phone will notify with 5 mins to go to full.

[@MsAdamthebad]

BRAVO John!

[@bobsum1745]

It was great. I knew all facts, but listening to the expert was real pleasure . I love you John. No, no. Don't get it wrong.

[@adzam777]

Good one. 👍

[@MattBlack6]

I'd get the diesel Carnival close to 350 clicks on 25lt of diesel I recon. It gets in the low/mid 7s fuel economy wise. It's a lot more practical than the Ioniq too I'd say.

[@johnwarner4809]

My 1978 VW diesel Rabbit got almost 480 freeway miles on 12 gallons.

[@drellis2257]

Talk about kind with the maths, you left out the final emissions case you started on, emissions generator versus emissions ionic diesel for the burned fuel, pollutants being the whole reason (allegedly) for EV’s. Great piece of work as usual.

[@danieljones7843]

30:16 I can attest to this fact since I was able to get from Muswellbrook to albury/Wodonga through putty rd and only needed to stop at Gundagai to refuel my 68 litre petrol tank. The orange light came on just outside Gundagai. That’s roughly 600km and the car I was driving was a 1995 ford Falcon EF XR8 with 350,000km on the odometer. I would have got further but putty road was far too much fun to be driving conservatively in…

[@RC-wu6gm]

If I was to design an EV it would be a Hybrid Transmission PHEV (let's call it a HT PHEV) primarily run on gas/diesel but with a Traffic jam/low speed driving button that switches to the electric motor when pressed for those stuck in traffic on the daily commute.

[@voltare2amstereo]

Pretty sure this is all ready an option with plug in hybrid cars

[@GTRgeoff]

RAV4 hybrid my wife owns already has that up to about 40kph. You can lock to electric also until it decides it needs the Dino-juice.

[@robertgreen9614]

Some of the Japanese kei car hybrids only have a 2 or 3 kW motor, it's all they need to crawl along in Tokyo peak hour.

[@WayWot]

John did a video about the Mitsubishi plug-in hybrid. The petrol engine is used to charge the battery, as required, but also becomes the main drive at speeds above 80km/hr (if selected to do so). The electric motor otherwise chews quickly through the battery power when the vehicle is running at highway speeds where the petrol engine performs better. To keep weight down it only has one gear for the petrol engine and that's why it can't be used below 80km/hr and resorts back to electric/battery. It is geared for highway speeds only.

[@brentthompson2893]

I would say that anyone arguing about whether an EV charged with a diesel generator is more or less efficient than just driving a diesel vehicle is missing the point. The point is, the diesel backup generator at a solar/battery powered outback charging station is only going to provide a fraction of the total energy delivered by that station. And anyone driving an EV in Australia is only likely to do a tiny fraction of their total charging at outback charging stations, so the amount of diesel powered charging compared to the total for any Australian EV making an occasional trip across the outback is negligible compared to a vehicle which runs on diesel 100% of the time. But having said that, using the figures quoted for that generator gives an fuel consumption at the generator of less than 0.26 litres per kWh. I have a power meter on the supply to my home charger, and I know how many km my car does between charges, so I know that on average, it takes 15kWh of AC power delivered to the charger to drive 100km. With careful driving, it can get below 13. 15 kWh × 0.26 l/kWh = 3.9 litres per 100km. That's including AC / DC conversion, charging losses, the lot. Can you achieve that in a small diesel car? Possibly in some cases, but I'd say most diesel cars would use more.

[@scroungasworkshop4663]

Nice takedown John. I left a comment on a KZbin video recently explaining some of the downfalls I see with electric vehicles including, faster tyre wear and more expensive tyres, knowing that the battery is going to need a very expensive replacement at some time in the future, the cost to buy an ev is very high and the resale value is very low. Range anxiety is real and so is waiting a for long time at charging stations on a busy weekend. They can’t realistically tow anything more than a lawnmower. I was expecting a total flogging from the ev evangelicals about all my points but all I got was “you’re wrong about everything”. I’m wondering if that was Mr McGarvie as well, after all he is a marine biologist. As for generators, the next time I go camping I’m going to run the nuts off my Honda eu20 just so it’s running at peak efficiency. Cheers mate, Stuart.

[@michellekonzack]

I do not know, what are you talking about "faster tyre wear", because in Europe there are no Low-Cost tyres at all. The EVs use the same tyres as the combustion cars since it is a requirement by european law.

[@nigelcox1451]

Great to see some real numbers applied, thank you. I would suggest that we can make the figures more favourable for the ICE vehicle, if we choose one with an equivalent carrying capacity for people and luggage. It will be a similar size to the Ionic, but substantially lighter and much more fuel efficient than the Palisade.

[@AutoExpertJC]

Agreed - there are numerous ways to do this, but the overall position will be a similar result for overall efficiency (ICE in front, in the Outback.)

[@davidpacholok8935]

John love your videos! But as a retired EE doing power conversion for 40+ years, including designing Level II ONBOARD chargers for Bosch, im afraid i must take exception to your claim that converting AC to DC incurs a 10% energy loss. If you mean simple rectification with 4 silicon diodes for single phase, 6 for 3 phase the energy loss at 240 VAC is less than 1%. Silicon power diodes typically drop 0.8 volts at rated current. In the 1 phase case 2 diodes are effectively in series conducting 0 to180 degrees whilst the other two conduct 180 to 360 degrees. Either way you get 1.6 volts drop. So your 240 volts becomes 238.4 Volts. So efficiency is 99.33%. Now in 3 phase things are a bit different. Each diode pair only conducts between 60 and 120 degrees or 240 and 300 degrees. This results in a Power Factor of about 0.9. So it is True that for 90 KW DC you need 100 KVA 3 phase AC. Effectively 10% of the power is reflected back into the generator to reappear later. This will incur small additional I^2.R losses in the generator = 1.1^2=1.21 X the losses. This is NOT 10KW OF HEAT. If the generator is 95% efficient, a ballpark number is 5% of 10KW or 500 watts. I fear you may have equated KWs with KVAs, which as described in layman's terms above is simply not the case. Respectfully David Pacholok [e-mail] Here in 'Merica watching the Green Madness become a pernicious disease within our once great country.

[@AutoExpertJC]

That's interesting. Thanks. Perhaps the reference I used was wrong. (You still have to transform it up to a higher voltage, however, right? Using the generator I referenced.

[@AutoExpertJC]

Also, it wasn't my claim. I cited my source for that.

[@user-kj1od5ed7p]

Hello Mr cadogan what do you think the battery cooling system actually draws while the battery is being charged I know this would be dependent upon a bunch of factors like the rate of charge Ambient Air Temperature state of charge battery temperature stuff like that but what do you think the cooling system draws

[@philhealey4443]

8:00 Britain perfected locomotive variable ratio transmission complexity in the 1950s with a humunguous arrangement of giant interconnected differentials and four main engines plus a pair of supercharger engines, achieving constant torque from starting off to full speed. Strangely Diesel-electric proved better.....

[@coreydenadmirant2528]

Absolutely love your take on things. Love things rooted in reality. Super refreshing. Thank you for your time. Its insane the scams being forced upon us. Take it, don't ask questions and shut your mouth, 9 out of 10 "experts" would agree.

[@davidcraven277]

Here in Michigan their is a company installing diesel chargers at state parks and rest AREAS

[@user-os6lu4xf6u]

Great detail in this video. I am looking at this through a cold Canada climate. EVs in the current form is a bad idea.

[@alanwhite6161]

Well it can reach up to 50C in the outback Australia, And this charger is always 100% available. Because its going to be a long wait. Still normally a few caravans go past this charger on the north west highway the way to dingo piss creek, So might get a lift into local town(talking 100's KM here)

[@teardowndan5364]

In urban driving, charging your EV using diesel is more efficient since the EV has regen braking while a plain ICEV doesn't and the generator runs efficiently at constant load until the EV is disconnected/full while the ICEV doesn't. On a highway in the middle of nowhere, you gotta do whatever you've got to do when the alternative is no charging whatsoever making EVs a dangerous proposition on them. The only place I can imagine the exceedingly low "90% rectification efficiency" coming from is something like a car alternator that has to pump ~15V peak from its stator through its diode bridge to deliver ~13.5Vdc. When dealing with 400Vac, the two diode drops total less than 0.5% of peak, even less when using synchronous rectification. That is 99+% efficiency for rectification taken alone. The best AC-DC converters today are 96% efficient. If the diesel-backed charging station engineers integrated things right, they should have gotten DC generators that directly output into the HVDC bus the batteries, solar panels and DC-DC converters for charger outputs tie into. They should be able to achieve 90+% efficiency from engine crank to NACS/CCS plug. Pushing integration one step further, the generator's DC output could be adjusted to match whatever the EV is requesting and get patched straight through when no other EV is plugged in and skip the 3-5% DC-DC conversion losses. As far as battery temperatures while charging go, most of what I read says the ideal fast-charging temperature is between 40C and 45C depending on the specific lithium chemistry. 10-30C is for discharge and storage. With solid-state batteries though, some designs are aiming to get rid of cooling altogether by making cells intended to operate at 100-150C. BTW, you only fast-charge your EV from empty to full if you hate yourself. On most EVs, the last 20% is much slower than the first 80%. Unless you absolutely need another 10-20% to get to the next charger, you will spend less overall time charging by leaving before 80% and making an extra actually-fast 10-80% charging stop later. Also, if the middle-of-nowhere charger only does 80kW and your EV is able to take significantly more than that, you probably only want to charge long enough at the diesel charger to reach a faster and likely cheaper grid-powered charger.