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https://youtu.be/DGL5g91KwLA?si=THUsecZweJ_bLYVK88sins wrote:nervewrecker wrote:Not sure about tank sizes since they don't carry it onboard as fuel like CNG. It's actually a chemical reaction in a cell where a by product is electricty for an electric vehicle. How efficient the process is will determine tank sizes.88sins wrote:hydrogen fuel is an option, but what killing it is the lack of technology to make it attractive as an alternative.
Most using tanks you will fill at a station. That can get expensive, and inconvenient.
But let's say that there was an efficient way to provide all the hydrogen one might need by way of an on-board process of electrolysis. If that were possible, hydrogen fueled vehicles would become an extremely attractive product.
Those you mentioned using hydrogen fuel cells are what's being developed today. They aren't very efficient, and are rather expensive.
But I wonder why not just develop an engine to run efficiently on hydrogen gas?
Battery technology is also evolving rapidly. There is the Graphene ion produced by skeleton technologies in germany, sodium ion (can't remember who) and nuclear diamond that Toyota was supposed to run trails on with the new hybrids.maj. tom wrote:Toyota is working on a hydrogen internal combustion engine. Japan automakers like Suzuki, Yamaha, Toyota and Honda have all been doing a lot of R&D in the past decade on hydrogen power. And it's also a matter of laying the infrastructure for the public like hydrogen production stations in a region, which Toyota has done a bit in California. After 2035 with the end of gasoline cars in Europe I think hydrogen will become the sustainable energy economy.
The reality is that the current model of electric cars based on the Tesla is simply not sustainable very long term for us or the earth. The price of the vehicles, charging times, limited mileage and additional grid electricity consumption, most of which is wasted as heat, to the pollution created through mining, transport and manufacturing of those power cells, very dirty stuff.
Don't get duped into the EV con88sins wrote:Still trying to understand, why no car manufacturer has decided to make an ev and cover the roof, hood and trunk lid of with solar panels. Car will charge itself while parked, even while in use, and save the owner some money on the electric bill.
https://www.motortrend.com/features/the-2023-toyota-prius-primes-battery-could-take-three-weeks-to-recharge/88sins wrote:Still trying to understand, why no car manufacturer has decided to make an ev and cover the roof, hood and trunk lid of with solar panels. Car will charge itself while parked, even while in use, and save the owner some money on the electric bill.
88sins wrote:Still trying to understand, why no car manufacturer has decided to make an ev and cover the roof, hood and trunk lid of with solar panels. Car will charge itself while parked, even while in use, and save the owner some money on the electric bill.
Les Bain wrote:Still taking this in. I wouldn't mind an EV as a 2nd daily driver car but I'm not a fan of how motor journalists harping on power and straight line performance. In daily driving conditions it's still a single gear vehicle of tomblike silence.
ek4ever wrote:And what about the infrastructure to charge EVs? To date none of the charging services in the US are profitable so it would be far worse for Trinidad. Not to mention the costs to replace battery packs which no one talking about. An Ioniq 5 owner in Vancouver scratched underside of vehicle including battery pack....cost to replace battery....CAD$60,000, and we all know how great roads in Trinidad maintained. Another Tesla owner drove through some high water and damaged battery pack....voided warranty.....US$ 1000s to replace. I'm sure hours sitting in traffic with AC on gonna kill range, and would you have easy access to chargers where you going
88sins wrote:Still trying to understand, why no car manufacturer has decided to make an ev and cover the roof, hood and trunk lid of with solar panels. Car will charge itself while parked, even while in use, and save the owner some money on the electric bill.
MG Man wrote:88sins wrote:Still trying to understand, why no car manufacturer has decided to make an ev and cover the roof, hood and trunk lid of with solar panels. Car will charge itself while parked, even while in use, and save the owner some money on the electric bill.
Aptera is trying it
They're building a three wheeled 2 seater shaped like a fish...why 3 wheels? Can't fit 2 rear wheels in the back and still keep the fishy profile
Why fish / teardrop? It needs to be as slippery as possible
Why as slippery as possible? It needs to be as frivolous with battery consumption as possible
Why does it need to be frivolous with power usage? Because even with the whole top covered in solar panels, current efficiency limits how much juice those panels can generate in a day
The Aptera will give about 40 miles of range on a full solar charge....so basically if you have a short commute, it's theoretically possible to run on 100% solar without ever having to plug it in
It does offer plug-in capability and differet range options based on battery size, for longer journeys
But long and short is solar alone can't generate enough power quick enough to run a traditional sedan, far less an SUV or pickup
Too many compromises to make it mainstream-feasible
MG Man wrote:
Aptera is trying it
They're building a three wheeled 2 seater shaped like a fish...why 3 wheels? Can't fit 2 rear wheels in the back and still keep the fishy profile
Why fish / teardrop? It needs to be as slippery as possible
Why as slippery as possible? It needs to be as frivolous with battery consumption as possible
Why does it need to be frivolous with power usage? Because even with the whole top covered in solar panels, current efficiency limits how much juice those panels can generate in a day
The Aptera will give about 40 miles of range on a full solar charge....so basically if you have a short commute, it's theoretically possible to run on 100% solar without ever having to plug it in
It does offer plug-in capability and differet range options based on battery size, for longer journeys
But long and short is solar alone can't generate enough power quick enough to run a traditional sedan, far less an SUV or pickup
Too many compromises to make it mainstream-feasible
88sins wrote:MG Man wrote:
Aptera is trying it
They're building a three wheeled 2 seater shaped like a fish...why 3 wheels? Can't fit 2 rear wheels in the back and still keep the fishy profile
Why fish / teardrop? It needs to be as slippery as possible
Why as slippery as possible? It needs to be as frivolous with battery consumption as possible
Why does it need to be frivolous with power usage? Because even with the whole top covered in solar panels, current efficiency limits how much juice those panels can generate in a day
The Aptera will give about 40 miles of range on a full solar charge....so basically if you have a short commute, it's theoretically possible to run on 100% solar without ever having to plug it in
It does offer plug-in capability and differet range options based on battery size, for longer journeys
But long and short is solar alone can't generate enough power quick enough to run a traditional sedan, far less an SUV or pickup
Too many compromises to make it mainstream-feasible
To increase surface area so you can add more panels which would equate to better charging rate, place them double stacked at a 45* angle. But this however will create two new problems, additional weight, and lowered aerodynamics.
Unless they could cut the weight of the panels in less than half.
Or maybe a small, light weight but very powerful wind turbine on the back? So as you drive, turning spins and generates power. But even that must be small enough and light enough to not cause added weight or drag.
It must have a way.
sMASH wrote:The sun exposed surfaces might get u about 3, 4 0r even 500w of solar power in the right conditions.
But charging the batteries is in the 10's of kilowatts.
The costs outweigh the performance in typical cars.
But on something like a maxi, that might actually do sumting.
I don't have experience with ev motors, but a vehicle is quite heavy, so power to accelerate it would be substantial. considering a lil drill might be around 500w, if that could push a car.... I not seeing it.redmanjp wrote:would 500w be enough to partially directly power the car once it reaches a steady speed (no more acceleration) ? that way u wont even have to charge/recharge as much.
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