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Posted on 09/28/2024 7:38:52 PM PDT by Red Badger
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Thank you very much and God bless you.
I’m fine with the concept of EV’s, but having trouble with the execution.
The tech is NOT there yet to force the world into petroleum free living.
Battery weight...Number 4.
When an EV crashes into a gas-powered car, the people in the gas-powered car are more likely to be seriously injured or killed because of the higher weight of the EV.
I’d be less concerned with range than surviving the trip without becoming a crispy critter.
Hello, EV owner:
Your phone GPS says you are traveling a long way. Your vehicle has an estimated range of 350 miles.
In cooperation with your vehicle manufacturer, participating restaurants and motels are offering the following discounts:
ClownBurger, 275 miles from last charge point, 10% off your meal + free charge
MormonMotel, 280 miles from last charge point, 10% off our typical daily rate + free charge
RoyalBurger, 285 miles from last charge point, 10% off your meal + free charge + free fries with every sandwich over $5
“Copper thieves agree.”
Use aluminum.
Sorry, by law, I can only give you $1 a pound for the copper content because you didn’t bring it in marked electrician’s or plumber’s vehicle.
That has specially colored hexagonal wires. You can’t legally possess that. I have to call the police. Where are you running off to?
Well these experts and masters of wisdom are never wrong, don't you know?
“Unprecedented” large leaps in advancements of battery tech, required.
Copper RATIONING.
Charging stations require articulated arm that “takes” the weight of managing the “hose” and “nozzle” so people who are unable to lift the HEAVY cable that has the faster charge rate . . . do not a) die, nor b) get a hernia.
Compressed air hose and “gun,” so the person who handles the recharging physics, can blast air upon the “nozzle” tip and “receptacle” . . . and clear away the dirt/dust (that is going to accumulate).
SYSTEM that lets every EV “know” what charging stations are working (and how well) and where.
HEATING SYSTEM so charging station is not FROZEN “when you get there?!”
Overhead Shelters for all charging stations.
SENSING SYSTEM that alerts charging station’s maintainer, that “an Arizona man” just walked off with the “hose.”
Still way too long for a “fill up”
Just tow a microreactor nuclear plant behind your EV./sarc
If we have enough battery-only EVs to keep those 28 million chargers busy, we'll also be having frequent brown-outs in ever major city in the US.
I have owned no less than five vehicles that have less range in the gas tank than my Model 3 Tesla has in it’s pack which is 360 miles. My 1979 K5 blazer has well under 250 miles to the tank. 1985 Jeep Cherokee 260 ish, My 91 Rx7 had under 300. My 93 S10 also well under 300 miles to a tank. 97 Explorer was 270 a tank. 2003 F150 was just at 300 miles. Only my imports went 400+ miles the SAAB and both my Volvos both were the first vehicles I have ever owned that would do 400+
The important thing is not max range as these vehicles demonstrate its how rapidly and conveniently you refill that range. The trucks took 10 min or so to put 25 gallons in the cars were 15 to 18gal.
Tesla has solved this issue for its EVs the Model 3 will take a 250kw rate you can add 4.4kWh per min over the SOC range of 10% to 70% it slows down to balance the cells above 70%. Not quite but close it starts off at 100kw then ramps up once the BMS makes sure all the cells are in temp range then it rapidly goes up to 250 and holds it there till 70% and starts to ramp down as it starts to balance cells nearing 80% cut off. I can add 250 miles in 25 min on average at a V3 supercharger.
Since nearly no one drives more than 300 miles in a day on a regular basis, L2 home or condo charging is a better option you just get home take 30 seconds to pop the door and plug the plug then go zzzzzz. Yes people drive far on average twice per year farther than 400 miles from home. In reality for those two edge cases which is what they are edge cases you can rent a hybrid car if you only had an EV with 300 miles range and no supercharger along the way.
5. Batteries degrade when fast charged and/or fully charged
6. Insufficient generation and distribution capacity (should be no. 1)
Perfect example...the governmental push for compact fluorescent bulbs. LEDs are far superior. People did not need government mandates to accept them, the market solved that.
Utter fantasy.
People fail in the math on that. 96% of all trips are under 30 miles total. It only takes 7.5kWh to go 30 miles in a full sized model S, less in a midsized Model 3.
Where people fail is they take the total gasoline consumption for all LDV vehicles and then convert that to the equal amount of electricity on a btu to btu basis. Thats completely wrong as EVs use one seventh or less the btu per mile.
Case in point a Model 3 will go 5.5 miles on one kWh that’s 3412 BTU or 620 BTU/Mile. A identically sized S60 uses 114,000 BTU to go 25 miles in the city. That’s 4560 BTU/MI
Also most people drive less than 40 miles per day total that’s only 10kWh per day. There is a small set of users 10% of drivers that burn 32% of all gasoline in the LDV fleet. The bottom 60% of users burn half as much as the top 10%. Getting the bottom 90% of users which all have less than 100 mile per day usage patterns into EVs would only cut gasoline use by 58% this is spread out over an entire year in vehicles that are seven times more efficient.
The total amount of energy used would drop by a factor of seven for that user group. That’s of course plug to wheel factor of seven. Natural gas combined cycle turbines are 60% to the plant gate, 3-5% HVAC to the wall plug losses over 100-300km distances. The power grid is quite efficient otherwise we wouldn’t use it for power delivery in the first place. The plant to wheel of a EV is higher than tank to wheel by at least a factor of two, adding in drilling, refinery, transport and pumping losses makes it three to one or more in favor of the EV on a BTU for BTU basis. It gets better with solar and wind as those have negative energy consumption numbers they produce more energy over their lifetimes vs what was used to make them for solar 50-100 to one , wind is 50+ to 1, nukes can go into the thousands to one. The fact is from a energy view point it’s better to burn natural gas in a combined cycle turbine and then use that in an EV then to even use the gas compressed directly as CNG in an ICE on board. Why because no ICE anywhere can run at the temps and operating point of a large gas turbine with a secondary heat recovery cycle using super alloy blades.
The goal should be get as many urbanites into low energy use per mile since its low hanging fruit they already drive well under the limits of even a 150mile range EV. Then for the gas hogs get them into hybrids for those who really drive 100+ miles a day or more. Largely uber drivers, and rural commuters who make up less than 10% of all drivers. You go for the large groups first before the edge cases. Or just raise gas taxes high enough to force the superusers to change their patterns or mode of use. Use those gas tax revenue to fund actual road wear since the gas taxes now don’t even come close to funding half the expenditures on infrastructure and superusers disproportionately use miles well above what the average person does who’s income taxes currently pay for more than half the expenditures on road infrastructure at the federal level pretty easy to look up those numbers. Much highwe gas taxes would shift the burden to those who use the resource the most. User pays is always the most equitable way. Urbanites drive so much less but contribute well more than half the income tax used so that shift is more than fair.
No we don't.
” several more radical ideas”
Like outlawing gasoline and diesel. You will be forced to buy one. Or... no driving for you.
An even better way is to buy a gas/diesel powered vehicle.
This entire charging station situation reminds me of the fate of Easter Island.
According to some, the island civilization crashed and burned during the push to build more and more Moai. The giant head statues.
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