What Does One Use To Charge An Electric Vehicle?
(files.catbox.moe)
You're viewing a single comment thread. View all comments, or full comment thread.
Comments (32)
sorted by:
The internal combustion engine is at most 40% efficient when fuelled with diesel.
You make valid arguments in terms of resources to build the ev. However in the right use cases (like mine, 50,000km/year) it is massively cost effective.
You are absolutely correct that liquid fuels are the most energy dense fuels we have available to us short of nuclear.
If you want to argue about mining and resources, we have strip mines and gaping holes in the Earth for just about every other modern convenience. Thus, this argument is moot.
In 180,000km my ev completely paid for itself in fuel savings compared to the car it replaced (1994 Q45, 4.5L v8).
The economic argument is very narrow, there shouldn’t be tax payer subsidy on them, and they are a terrible choice for low mileage use cases. Battery life is tied to how much it gets used and if it’s properly charged or not.
All that said, I still prefer driving my turbo diesel when I can justify it.
Toyota has developed an engine capable of 40% combustion efficiency out of petrol. The Drive's Article Which I believe is the highest efficiency for a soon to be commercially available combustion engine.
EV batteries are my main concern for myself to get one, Electric motors are definitely gonna be a contender for the replacement of combustion engines in the future; until some new engine/motor technology is developed. The battery technology is what's holding EV back. In my opinion, the technology isn't ready to mass replace and kill off combustion based vehicles, it's something that should happen naturally, not be forced upon society. Everyone didn't sell their horses and wagons to by a car in the late 1800s, early 1900s.
Additionally, I don't think there's a company that has an EV semi truck (Volvo and Tesla were developing some) or locomotive available for commercial consumers, so that's another thing that seems to be over looked by people who say "the world needs to be EV NOW." (Not saying that's you)
Batteries are part of the problem. The more crucial problem is the transfer of energy. Pumping 90L of diesel takes 2-3minutes and you’ve moved a megawatt of potential energy. Move a megawatt in that time frame is impossible to achieve at the automotive scale.
EVs have their place, are very useful, but until we can store electricity at the same density of fuel, they are not a replacement. Thus I agree with the assessment that the push to force ev is more about controlling mobility.