Just use g=-9.81 m/s^2 and you're grand.
There's more to it than that🫣
Yes but these trucks go downhill empty and uphill fully loaded, the battery would be empty within a few metres. Obviously a truck of that weight wouldn't freewheel, they aren't that difficult to drive in reality just extremely boring doing the same repetitive route.
So this is the one I had seen, and yes it drives down the mountain fully loaded…
The example Andy is referring to is the opposite. The quarry is on the top and is transporting the load downhill. I was pretty sure you've heard about it
Hence why they are using fully autonomous trucks on a lot of mine sites in Aus, particularly in the iron ore mines in the north west. There is also a large gold mine in the south of WA where plans are underway for conversion of their autonomous vehicles to electric power.
Catepillar released its first battery electric large mining truck last year (I think this was reported before?)
There is also a number of large scale electric conversion projects for 70 Series Landcruisers and Hilux utility vehicles (or 'utes' in Oz!) dedicated for the mining industry, with the support of Toyota. Testing has been going on for sometime and
There's a lot of space to fit a lot of batteries 😁
I shudder to think what the consumption would be like, electric trucks are up around 100kWh/100km (or 1Wh/m if you prefer 😉) so I wouldn't be surprised if those big dumper trucks are 10 times that
However they only seem to travel a few kilometres at a time, so it's possible something like a 200kWh battery would do a full run. Plus then a charge while loading and you're ready to go again
There's also a lot of smaller mining vehicles which are probably much easier to electrify. A lot of them are pretty slow moving so you might not need batteries at all. I saw an electric excavator a whole back which basically had a big cable drum on the back and was hooked up to the site electricity grid
And remember that giant bucket wheel coal digging/Germany destroying excavator which is powered by electricity
A bit of a stretch saying that it will never need recharging...Eventually the stored weight/energy built up at a height will be gone😉
Maybe not, "Geodetic measurements show ongoing topographic uplift at rates of up to about 2.5 mm per year in the North, Western and Central Alps, and at ~1 mm per year in the Eastern and South-Western Alps" (Wiki)
Good to see.
Interesting, although some more details would be nice
Haven't used Monta myself but there seems to be an option to list your home charger as a publicly available charger and charge money
I might try to make some money from the Zappi then 😂
While their original plans included many of the slower AC destination chargers, the company recently told us it has become clear that people are mostly interested in DC charging. That has resulted in a revised project that will now have a greater emphasis on Rapid and Ultra-Rapid sites.
That makes it sound like they're going to shift toward DC provision, £50 million to roll out DC chargers in the North is 2.5 times the eCars investment (€10m+€10m) that supports the Irish eCars network.
I like how they're specifically mentioning ultra rapid (150kW+) chargers, and they mentioned hubs somewhere else in the article
At this rate NI is going to go from the worst to the best charging network on the island
Starting @ £2500, no reserve and no feed back, he mentions he is open to offers of £12500.
Fell off the back of a truck!
Are these the first chargers you can reserve (in the UK)?
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and
Surprised he fell for the same old FUD from Toyota and the big oil tbh seen as he seems very clued on stuff and has even owned EVs in the past. But in the end he's a big petrol head at heart and would probably want to keep his V8: Finding anything other than a 4-cyl hybrid on sale is getting incresingly difficult now.
Speaking of Toyota, has anyone heard their radio ads recently. I think they are new.
They go something along the line of "Mary spent 50% of her time on electric power driving to work in her Toyota hybrid without needing to plug in" Another one mentions 75% of their time.
Are they saying if Mary takes 30 minutes to get to work the petrol engine is only running 15 minutes or that 50% of her distance was on the electric motor. I think it's the first and if so it's very misleading.
You could then make the same claim about any ICE car with stop/start.
its the former, and thats why they do it. 15 km journey for instance taking 30 minutes in stop start traffic it would be easy to spend half the time on EV. But do the same distance with no traffic and you wont.
The engine will turn off driving along if there is no need for it, you would hardly notice it turning off and on, its automatic, if you ease off on the accelerator it would just glide along at 100 kph, it was the start of the one foot driving way before EVs, pulse and glide, its not hard to do,
but everyone is used to ice driving, so its accelerate till the next bend and then brake and accelerate some more, with EVs and hybrids its accelerate, glide/regen and accelerate.
yeah, their probably not saying Mary spent 15 minutes driving down the motorway for 30km in petrol mode, and spent the last 15 minutes in electric mode driving the 3km to her office from the motorway exit..... just doesn't sound as awesome when they bring facts and data into it...
Yes and Ive had a few priuseseses in my time I know how it works. Not a hope of doing 75% of any journey in EV mode.
Mary probably works from home and her "commute" was a 2km round-trip to drop the kids off at school and get milk from the shop while not going over 30km/h 😏
Easy enough to do 50% of that on electric
Also where did the electricity that she was using to propel the car come from in the first place? Unless Toyota have some way to violate the law of conservation of energy then it came from the petrol engine
Tbh I wouldn't be surprised if they claimed they created energy from nothing 😂
The typical answer I used to get from their various dealers on Facebook before they all blocked me was that it came from regen… but when I pointed out to them that regen was just simply a way to capture some energy that had already been expended, they’d hit that block button on me….
If you compare marys journey in a hybrid and the same in a diesel and then take into account idling, reversing, waiting at a junction it could easily hit 75%, I will grant you that on a motorway trip it would be no way near 50 %, there is only a 1.4 kWh battery in most hybrids, it does not take much to charge them or deplete them, anyway I am sure the gliding done in a hybrid would be counted by Toyota as EV driving.
Just in case you weren't fed up of me talking about boats:
Points for having an awesome looking render, I really like the Titanic style stacks that are actually fold out rigid sails covered in solar panels
Has some cool ideas, for example the azipods on the rear can retract into the ship to streamline the hull. And it has a sort of air curtain thing on the bow which creates a "lubricating" surface of air bubbles along the ship so it basically KY gels it's way across the sea
At around 400 passengers this ship is a far cry from the largest cruise ships, but it's possible the ideas here can be scaled up to bigger ships
Of course the biggest drawback is that they haven't actually built it 😕
It'd be nice if they put some more effort into the construction rather than making some nice renders
Good salesmen never let things like the laws of physics get in the way of a marketing campaign
True, but the only way to start with a full battery is to have charged it from the petrol engine. So EV mode is really just using petrol that was burnt earlier
Anyone else get the email from ESB eCars saying you have to have €20 credit in your account before charging will start? That's very sneaky.
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