I read the story.
I saw the comments on the story
I laughed at the pedantic slapfights happening in the comments.
I came here to comment on the neat story and poke fun at the silliness, to find the same pedantic slapfights here.
Sigh.
yes it does. just going by the numbers posted operating in the space it does results in a net loss of12% battery each trip.
No one commenting on the fact that the first paragraph says it doesn’t even CONSUME energy???
I think it’s clear they are sensationalizing it due to the unique nature of the energy used, which is external potential energy that needed to get down the hill whether it’s a gas or electric truck.
Technically it would be impossible to consume energy unless converting it into mass (or time I guess but thats purely theoretical)
EV never has to be recharged… Because it recharges on the way downhill.
Yeah I was gonna say I’m pretty sure this isn’t a single use, disposable vehicle
More like “never has to stop working to charge”. It is novel that its charging mechanism operates as a function of doing its primary job.
Not novel. I think there was a train somewhere in Africa, that transported some ore from mountain to port. On the way down with ore it charged and uphill it used charge.
Is novel for a dump truck to use this. Of course it’s not a completely new concept entirely.
That’s genius. Who cares if thermodynamics wins, it weighs less on the way up so works out just fine.
Just like the example in TFA.
I think it’s still pretty cool. Turning potential energy to kenetic
Reminds me of some guy with a OneWheel that was saying he’d never charged his board in like a thousand miles as his daily commuter.
He lives near the top of a mountain lift, so he takes it home and just runs on pure regen lol.
So he’s just breaking? What a silly thing to claim. I bet he’s not even regening a lot. When i ride up a mountain until my battery is down to 40% or so and ride down i regenerate around 1% or something. It might even be in the 0.6% or something
“World’s largest EV”
Blatantly untrue. Larger EVs have been in use for more than a century at this point in the form of EMU trains.
Bagger 288 is also electrically driven. Even if it is connected by cable to a nearby powerplant.
The emus have trains now?!
Yeah we’re proper fucked tbh
It was part of the treaty. That and the Great Dingo Barrier.
We truly are lost…
Take that Australia!
I’ll pick up the pedantic torch. Trains are made of train cars, I’d argue each one is a separate car or vehicle even though they’re strapped together.
I feel like The ISS ticks a lot of the boxes for a vehicle though, how big is that?
Sure, but quite often in EMUs the cars come in sets that can’t operate disconnected from each other, so I’d argue that they still comprise a single vehicle.
I’d argue that the ISS, due to lacking means of propulsion (unless you count explosive decompression) is not a vehicle.
The ISS has two different propulsion systems and has used them to avoid debris. I don’t think that it has enough power to leave orbit and reach greater altitude.
In that case yeah, I guess it is a vehicle.
This will conversation evolve into two things: are hotdogs and tacos sammiches, and we becoming crabs.
POPTARTS are Calzones. Calzones are Pizzas. Pizzas are Open-Face Sandwiches!
Aka toast
Very interesting use case but kind of dependant on this very specific setup? I feel like an even more efficient and low maintenance method would be like… a ramp.
Well sure but if you just dump ore onto a ramp/chute then you’re constained to high angles and material so it can’t also double as a drivable road.
A 600 kwh battery pack so… Rocks can roll down hill? Galaxy brain moment.
Genuinely, I cannot tell what your point is. In some alternate universe, are we just rolling the rocks downhill? Don’t you think we’d already be doing that? This seems like a great use case to replace diesel trucks with ones that recharge themselves using potential energy from ore. This absolutely is a galaxy brain moment, in that it’s a very smart idea.
Probably a lot less safe (and harder to aim) if you don’t use the truck. Also unlikely they get all the way down unless you mine it in wheel shapes (increasing labor and also, luckily, danger).
Till elon finds out that if he manages to cover the sun, he can charge us on sunscription
Pretty sure its also not solar. The machine gets loaded with weight at the top of the hill, its regenerative brakes store power on the way down, it drops the load off, and the lightened machine stored enough charge to drive back up.
Marl is an earthy material rich in carbonate minerals, clays, and silt. When hardened into rock, this becomes marlstone. It is formed in marine or freshwater environments, often through the activities of algae.
You just toss it when the battery dies and get a new one.
Well yes but it does also recharge itself by going downhill while loaded and storing power from regenerative brakes. Then it drops the load and has enough charge to drive back up. The power is coming from it being loaded at the top.
I know how it works. I was making a joke by applying the concept of disposable e-waste junk to a massive dump truck.
Yes but your comment was in every way indistinguishable from a comment by an idiot who had no idea how it worked, didn’t read the article, and commented an incorrect explanation anyways.
You truly believe someone thought that you would just throw away an entire dump truck when the battery died?
Depends on how easy it is to remove the battery and how many replacement batteries are on the market.
Also a bit of a ship of theseus issue where if the truck gets refurbished by the company then is it the same truck?
These things are very large and very few in number. I know nothing about the company behind its production.
So it is possible.
Just like a vape stick.
Perfection is the enemy of the good; climate change is even worse.
Cool EV bruh, but can the horn make a fart noise?
This is very fucking cool.
Very cool! It’s a pretty specialized use case, but still awesome to see.
They must be hauling the load downhill, what about the ones that hauls the load up from an open-pit mine?
Does it discharge extra energy into anything else? Does it burn off extra energy as heat to maintain regenerative braking?
It powers a massage chair for the driver
Great question.
That is definitely one of the big caveats of BEVs over diesels. A battery on an EV can only take in so much energy. Once you hit that ceiling, the battery won’t take in any more current. Fun fact, having a super charged battery in a BEV causes all sorts of headache and can cost you performance.
You either have to switch back to service brakes or, as you mentioned, burn off energy as heat. Not sure how they’re doing it with this truck, but on other BEV loaders which I’ve worked on, we add a hydraulic valve whose only purpose is to create flow, pressure, and subsequently heat. It basically just adds a dummy load. I suspect they tapped into the dump hydraulics and added such a valve for this truck.
