Electric Cars Not Doing Well in Extreme Cold

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Sorry, Dave, but if I've a got an EV sitting in my garage being charged overnight for me to use the next day, I'm keeping that baby fully charged up. Not giving any of it back. Not one milliwatt.

Not even if the power goes out and it is only for your personal use. Your own personal virtual power plant.

dave
 
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electric aircraft!

This is a place where hydrogen makes a whole lot of sense. Also long haul trucks. Trains should be able to get theries from the rails.

One of the first BEV aircraft trials are happening right here, specifically for the short-haul Vancouver-Victoria flight (about 75 km). Not really sure where they are but the last headline i saw suggested it might not be going too well.

It is hard to carry heavy batteries if you don’t have wheels to counter gravity.

dave
 
You mean my Star Trek Communicator? They call them iPhones these days.

A surprising large number of things i use were science fiction when i was a kid,

dave

Yes, Dave... but when you come up with solutions to current problems based upon solutions that require some fundamental breakthroughs in physics, engineering, manufacturing and politics... well, I call that Science Fiction.

Mind you, I love Science Fiction myself.
 
This is a place where hydrogen makes a whole lot of sense. Also long haul trucks. Trains should be able to get theries from the rails.

One of the first BEV aircraft trials are happening right here, specifically for the short-haul Vancouver-Victoria flight (about 75 km). Not really sure where they are but the last headline i saw suggested it might not be going too well.

It is hard to carry heavy batteries if you don’t have wheels to counter gravity.

dave

BEV air vehicles make little sense except for light weight POV or loitering ammunitions.... The Russkies and Ukes are rewriting the laws of modern mixed arms warfare with their use of drones.

But for all air vehicles.... battery technology is simply too heavy and inefficient.

The issues are simple: weight and energy density. Perhaps a hydrogen fuel cell might make sense (*) because it's very compact, indeed more compact than a piston ICE. And also on the lighter side with little vibration.

BUT, how do you convert the electric power to motive force? If you use fans, the best you could do, IMHO, is a ducted fan... an "electric jet"... so how fast can you go?

Another way would be to use an electric spark to create an air plasma. This could be done in a "jet" where the plasma expansion chamber replaces the fuel burning chamber... or a scram jet with a simple up front turbine to start the motor.

Any way to look at it... gasoline is so energy dense that it's a wonderful fuel.

Hydrogen fuel cells are also very good, but just not as energy dense and we still need to manufacture a more efficient "tank".... currrently going to low pressure chemical tanks... almost there.

Fusion? Well... how heavy will that be?

Fission? The Russkies have a new nuclear cruise missile with almost unlimited range... it has a nuke to propel an electric jet... but it releases radioactivity... which in this case no one would care about given the Giga Tons in its warhead.

Now, if we're gonna go full Asimov, well, hell... how about a Faster Than Light (FTL) gravity drive? Or better, teleportation.

Beam Me Up Scotty.... but please bring my amps with me...


(*) The fuel cell in our Clarity FCEV was rought the size of a 2L Honda I4... all inclusive: a stack of a top electronics layer, fuel cell membrane middle layer and power generator bottom layer.
 
Here ya' go....two modules at 16 tons each...load it up with thousands of pounds of wood & burn it to power an onboard steam-turbine. With the power line connected to the thirteen ton battery pack on the other module. Voila, electricity to charge up your electric cars & trucks. The insane irony is palpable. A three-way coalition of a incinerator company, Volvo & Rolls Royce.

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------Rick…

Air_Burners_BioCharger.jpg
 
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Greta Thunberg is a hero rather than a sick kid as far as I'm concerned. Most of the time she just quotes or rephrases IPCC reports and encourages people to listen to the scientists rather than to her, by the way.
Huh? You are wrong. To err is human. I'll pretend I didn't hear you. BUT! I'll say it again - it's serious, do you realize? Find your mistake and try again. Good luck.
 
I saw that article and archived it.

There is a lot of wood where i live, and the wood stove that keeps me warm is not all that clean iand i have speculated for some time how you would clean it up.

This looks like a potential solution out of the box. And if it proves effective we could well see the tech scaled up & down.

Be good for the mills already burnign sawdust and other waste.

dave
 
Not even if the power goes out and it is only for your personal use. Your own personal virtual power plant.

dave
But that's not the case you brought up that I was responding to. I was responding to this post by you:

"Also ref the Grid: when 2-way charging becomes the norm every one of those EVs sitting on the charger will become a huge virtual power reserve, virtual power plants."

You are proposing that all these EV cars give power back to the grid. And that makes no sense whatsoever unless the utilities are willing to pay you more for power you return to them than what they charged you for it in the first place. I see no reason why they would do that. They are in the business of making money, not losing it.
 
That is not inconsitent of most everyone having their own local virtual power plant for them (ie the grid collapes to 1 home), or perhaps communities where subsets of the grid disconnect when they get no incoming power.

Think of the flexibility… but it does mean a significant rebuild of the way we currently distribute power.

dave
 
Burning sawdust?? As a boy growing up in Oregon, the trip from the Portland/Metro area to & from the coast we would see those big wood-burning "Tipis" belching smoke at the coast from those wood-mills...That all disappeared around the mid seventies as the air pollution was deemed too much. Those wood-mills that actually burn waste-woods are long gone...or should be.
The CO2 production, soot , carbon monoxides, oxides of nitrogen, etc of burning wood has to be thousands of times more prolific than the current states of Diesel engine emissions. It's like those crazies who prep, cultivate agriculture producing corn for bio-fuels...consuming Five units of energy to produce three units of energy (fuel).


-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Rick...
 
That is not inconsitent of most everyone having their own local virtual power plant for them (ie the grid collapes to 1 home), or perhaps communities where subsets of the grid disconnect when they get no incoming power.

Think of the flexibility… but it does mean a significant rebuild of the way we currently distribute power.

dave
I still don't see how this would work. If I have a battery powered car and the grid goes down the last thing I want to do is give away the power I have stored in my car battery not knowing when I can get it back. That completely compromises my ability to use the car when I might need it.
 
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