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what you don't see is the massive graveyards of second hand that can't be sold

or the occasional but catastrophic battery fires

i agree that in principle eliminating the oil burning at the site of use for urban commuting makes sense but don't pretend it's more efficient

nostr.build 2y ago

For the graveyards of cars, I just read some recent articles on it, seems there are a many. My guess is this is a printing fiat problem over the last few years combined with slowing electric car sales, overzealous expectations, and other macroeconomic factors not necessarily directly related to the value of an electric car. I had no problem selling our two different second had electric cars in 2018 and 2022, different markets.

Regarding fires, it is as rare or less than gas car fires. I think that is a non-issue especially compared to the history of gas cars burning people to death.

Electric motors are more efficient, electricity is more efficient and flexible (or you would be running you iPhone with gas), we’ve been using batteries for decades, personal use is way more efficient in my families experience, but obviously using gas to power a generator for electricity or not properly recycling batteries is not.. So depends I guess.

Even IF today electric cars are less efficient (I don’t believe this is true) but if it was, in 5-15 years of technical advancement they WILL be light years more efficient. We would be paying for the R&D now to massively benefit the world later. Pretty sure horses were more efficient than the first gas cars.

Again, imagine powering 100% of your house electricity and automobile fuel with solar from your rooftop, for 20+ years. I’m doing that today (and mining Bitcoin with any left over). Talk about sovereign, I haven’t seen a gas station or electric bill in years.

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ᴛʜᴇ ᴅᴇᴀᴛʜ ᴏꜰ ᴍʟᴇᴋᴜ 2y ago

i'd not be running an iphone with gas but the only reason is that solid state fuel cells require expensive metals as catalysts and that's just never been solved

now, there's a type of electric i would get behind: methanol fuel cells

also, if you don't realise that converting hydrocarbons to electricity far from the site of use is inefficient you clearly have no grasp of either electricity or physics

- copper conductors have resistance that eats the energy

- the transformers eat the energy and turn it into heat more visibly that you need big heatsinks for them

- you need transformers every few kilometers of cable run

- battery chargers generate waste heat energy because they have to convert the AC power which is able to send electricity across distances at the cost of requiring step-up transformers to DC

- the actual charging process has another power system in it that also wastes power in the form of heat

- the battery itself heats up and this heat is wasted energy

if you understand some basic economics of compounding percentages those losses have to be under 10% (highly unlikely, more like 12-15% but let's just entertain 10% at each hop) - for 10% that's 0.9^6 or 53% of the energy by the time you apply force to the road, and there again also hides another 5% or so energy loss that is present in any vehicle

the direct burning of the hydrocarbon fuel inside the engine gets you more like about 15% net loss via heat and friction, which is effectively 1/3 of the losses from the electricity

and let's not go into these "renewable" solar cells that require ovens sitting at very high temperatures slowly cooling for a week or more to grow decent sized PV silicon cells, or the amount of heat and cooling required to manufacture high tensile wind turbine parts

the energy cost of producing both of these devices is about 2/3 returned in the energy produced over the operational lifetime of the devices

only people without understanding of the issue of energy conversion and transmission efficiencies buy this hogwash about sustainable and green

it's not sustainable because it's far less efficient

the only thing that the electric car does is reduce pollution where we live, where the electric increases pollution somewhere else

stupid humans can't think past one order effects of their actions

DRE 2y ago

👆🏼

imo much like with bitcoin mining I’m cool with however people want to use electricity as long as they pay for it. No beef with people that have EVs, I just don’t want to subsidize the car manufacturers and charging infrastructure with my tax dollars. Same goes to anything else that gets subsidies. If it can’t survive in the free market then it clearly should not exist. Let the markets speak.