Are We Reaching the Electric Car Tipping Point?
HughPickens.com writes: Geoff Ralston has an interesting essay explaining why it is likely that electric car penetration in the U.S. will take off at an exponential rate over the next 5-10 years rendering laughable the paltry predictions of future electric car sales being made today. Present projections assume that electric car sales will slowly increase as the technology gets marginally better, and as more and more customers choose to forsake a better product (the gasoline car) for a worse, yet "greener" version. According to Ralston this view of the future is, simply, wrong. — electric cars will take over our roads because consumers will demand them. "Electric cars will be better than any alternative, including the loud, inconvenient, gas-powered jalopy," says Ralston. "The Tesla Model S has demonstrated that a well made, well designed electric car is far superior to anything else on the road. This has changed everything."
The Tesla Model S has sold so well because, compared to old-fashioned gasoline cars it is more fun to drive, quieter, always "full" every morning, more roomy, and it continuously gets better with automatic updates and software improvements. According to Ralston the tipping point will come when gas stations, not a massively profitable business, start to go out of business as many more electric cars are sold, making gasoline powered vehicles even more inconvenient. When that happens even more gasoline car owners will be convinced to switch. Rapidly a tipping point will be reached, at which point finding a convenient gas station will be nearly impossible and owning a gasoline powered car will positively suck. "Elon Musk has ushered in the age of the electric car, and whether or not it, too, was inevitable, it has certainly begun," concludes Ralston. "The future of automotive transportation is an electric one and you can expect that future to be here soon."
The Tesla Model S has sold so well because, compared to old-fashioned gasoline cars it is more fun to drive, quieter, always "full" every morning, more roomy, and it continuously gets better with automatic updates and software improvements. According to Ralston the tipping point will come when gas stations, not a massively profitable business, start to go out of business as many more electric cars are sold, making gasoline powered vehicles even more inconvenient. When that happens even more gasoline car owners will be convinced to switch. Rapidly a tipping point will be reached, at which point finding a convenient gas station will be nearly impossible and owning a gasoline powered car will positively suck. "Elon Musk has ushered in the age of the electric car, and whether or not it, too, was inevitable, it has certainly begun," concludes Ralston. "The future of automotive transportation is an electric one and you can expect that future to be here soon."
At least that is my hope. The concept of car ownership is archaic. I look forward to the offloading all the associated penalty costs of car ownership in favour of a service model.
I have a relative who is a part owner of a truck stop. I have heard how low the profits/margins are for selling gas. He tells me all the profit at those places is from the junk food inside... Apparently the deals they make with the gasoline/diesel suppliers are so bad there is almost no profit in selling gas.
We play the game with the bravery of being out of range
Gasoline stations don't sell gasoline. The provide it as a service at near-zero margin as a way to lure you in for the high-margin food and sundries in their stores.
They'll find other ways to lure you in (like adding charging stations).
Is it just my observation, or are there way too many stupid people in the world?
EVs cost significantly more than gas cars, don't have the range of gas cars, and apartment dwellers have no way to charge them overnight.
A friend has an electric, she loves it. She also drives 20 miles to work, charges the car in her garage overnight, and her road trips are with her kids and grandkids, who drive their gas vehicles.
The move to electric is a natural evolution, and will have a significant impact. The economies of scale in terms of pollution mitigation at power plants will utterly dwarf anything cars have ever been able to do themselves, transmission losses nonwithstanding.
Even if they only displace urban drivers (fewer per-trip miles, more population density facilitating more charging stations), the impact will be transformative. Watch the AQI loop around New York, and you can see air pollution rising and falling along the commuter roads into the City in lock step with the morning commute. I can't even imagine a New York with 50-80% fewer gas-powered cars on the road.
But that's still just evolution. Electric is just a natural step.
Driverless cars are the revolution. Electric makes existing car use patterns better. Driverless makes an entirely new paradigm. It may eliminate mass car ownership. It might eliminate parking lots. It might eliminate light rail in suburban areas. Taxis. Deliveries. Shipping. Police reponses.
Electric makes things better in well-projected ways. Driverless changes everything forever in ways we can't yet even imagine.
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How reliable are they in winter driving conditions? How is the battery efficiency affected by temperature? What about cabin heating? I'm having a hard time seeing any of the current crop being adopted for year-round use in areas that get more than a smattering of snow, or a few days below freezing per year.
Again, this works in the US with big suburbs where everyone has a parking lot with an electric outlet. In other countries (like good old Europe), where most people live in apartments and there is just no way you can plug your car at night, it doesn't work. It is just impossible until you can refill your car in 5 minutes like with gasoline...
Oh, and many Europeans travel 1000+km on a single streak with their cars on holidays. Again, if the cars you want to sell have to wait 2 times 4 hours to refill in such travel, you're not going to sell many of them.
Ecars are good for commuters that live in houses. There are not many of them outside the US.
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Some folks believe the key to Electric car adoption is better batteries. The Powerhouse by Steve Levine follows the quest for better battery technology. It's not written as well as it might be, but it's still an interesting read...
http://www.goodreads.com/book/...
Seems like a new Prius shows up in the parking spaces of my apartment complex every other day. Especially in the DayGlo color paint. Could be a Silicon Valley thing.
I'm not driving an EV during a snow storm at night..... The draw from the headlights, defroster and wipers and the batteries being weakened by the cold? EVs are fine for warmer climates, but nor the cold.
According to the article, many gas stations will close once 10% of cars are electric, to the point of inconvenience.
Bullshit. I drove a vehicle with one of the most damn inconvenient fuels out there: Propane. In my province, 0.2% of vehicles run on Propane. In my city are alone (population: ~500,000), there's still 4 fueling stations and I'm never more than 15 km away from one. As I said, it is inconvenient because if you're not somewhere populous, it's rare to find somewhere to fuel up, especially in the US. But it was far from "sell it right now!" levels.
And that's with just 0.2% of vehicles using a particular fuel. At 90% I would expect my average drive to refuel for my gas powered vehicle would go from perhaps 2 km to 2.1 km. Wake me when we hit 30% of cars on the road being gasoline powered, which would make the amount of gas sold equal to the amount of diesel sold right now. Those with diesel cars *STILL* don't worry about being able to fill up, despite being at that level of popularity. I figure when gasoline cars hit 5% it will actually require some small amount of planning to refuel. That's a LONG way away.
Living in Los Angeles, the age of the electric car has been upon us for quite some time. everyone from BMW to nissan makes popular electric cars and sells them for a reasonable price here. The problem comes when you aren't in the second largest city in america.
During a business trip to an office in Ohio I learned firsthhand how awkward it must be to own one of these vehicles. In Blue Ash, Ohio I saw one or two teslas, but Ohio doesn't have a tax incentive like Los Angeles gives people to buy them. So, owners in Ohio aren't exactly the average joe. It seemed a status symbol, as though they mostly buy the car out of a desire to be perceived as 'elite' and progressive. Charging also seemed cumbersome. In LA we charge at parking garages for low cost, or free. most employers offer ChaDeMO charger stations as a perk in their garage. taking your car into the shop? its charged when you get out. Finally dedicated charging ports at some gas stations are also prevalent. None of this infrastructure existed in the cities I visited in Ohio because none of it had to. Gas was $3 a gallon, or less. Traffic was smooth flowing and quick, and mileage largely adherent to highway driving conditions above 50 miles per hour. There is also no public transit, no park and ride to charge the car at while you commute the rest of the way in by light rail.
Ohio also has winter weather to contend with. Most people owned larger SUV's or cars with all-wheel-drive in anticipation of snowy or icy roads, and temperatures well below those we're accustomed to in southern California. The car has to warm and cool much more actively, which im not sure is something electric cars can handle.
Disclaimer: I own a tesla. owning it in the midwest would seem to be a chore.
Good people go to bed earlier.
Just like horses were.
Speeeeeeeeeeeeddddddd!!!
Big rigs don't stop at your average corner gas station.
Also, I can kill you with my brain.
The ICE Spark is under $15k, similarly equipped, with a range of 360 miles. The base Spark EV is $26,000 and has a range of 82 miles. You're paying over $10,000 extra for the EV. On a $15,000 car. For a car with 1/4 the range. That's a pretty big difference.
Is it just my observation, or are there way too many stupid people in the world?
Electric cars are sooooo quiet!
Perfect for discreetly driving out the farms for some good ol' fashioned cow tipping.
Political correctness is really just herd psychology pushed by insecure people who desperately seek social conformity.
Kinda like how finding a convenient electric charging station is nearly impossible to find?
Your hair look like poop, Bob! - Wanker.
There are 254 million registered vehicles in the USA.
At an estimated cost of $20k per vehicle to replace (currently below almost all electric vehicles), that's $5 trillion.
At a realistic cost of $35k per vehicle to replace (Model 3 and other options), that's $9 trillion.
The 2014 USA GDP is $16 trillion.
16 million cars total are expected to be sold in 2014. At that rate (which is a high water mark), it would take 8 years just to replace half of the gas cars on the road if every single car sold from today forward were an electric car.
It's hard to get real numbers, but it seems like somewhere between 200k and 1.2 million electric + plug-in hybrids were sold in the USA in 2014. Even if we say it's 1 million/year and the number goes up by 50% every year (incredible sustained growth), it will take 5 years to reach 11.4 million electric vehicles sold per year. At that rate (a more realistic maximum for electric vehicles year sales considering all the reasons why people wouldn't choose electric), it will take another
9 years to reach the 50% mark of all cars.
So that would be 9 + 5 = 14 years for a "best case" realistic scenario for us to have 50% of all registered vehicles being electric. And that's assuming we'll still have 254 million cars on the road in 2030... estimating 350 million would probably be more accurate so it would STILL be only 36% of all registered cars (granted, miles driven may start to favor electric at that point).
So while the % of sales for electric vehicles will likely accelerate exponentially, it's a long, long time until gas stations start getting inconvenient. More likely in the 10-15 year timeframe, instead of having 2 gas stations right next to each other as seems to be very common, they'll start spreading out more. Maybe by 25 years, they'll be reduced in number enough to actually be inconvenient for daily use. It definitely won't be in 10 years.
Revolutions do happen (how many people carried a cell phone in 1990 vs. 2005? That took 10-15 years for a $300-600 item, this is something that costs 100x more), but it takes time and money.
Electric cars will be better than any alternative, including the loud, inconvenient, gas-powered jalopy,"
Lets look at this in the frame of the next few years. As of now, pure EV's have their own inconveniences and restrictions. HEVs less so, but they are not much quieter than many quality ICE cars. In fact, tire and wind noise become significant in either case. As for "jalopy", well, a very subjective term that could be applied to any old vehicle, be it gas or electric. There are some very nice ICE cars that would be hard to see as being described as a jalopy any time soon.
He may be right, he may be hopeful, but he's not apparently that objective.
Nice to see that electric cars are seen as a viable alternative but I think we're a long way away from the "tipping point" which won't change until consumers attitudes change.
I can't see electric cars being at the same or less purchase price than gasoline powered cars for some time. Don't forget there is also the cost of the charger installation and this could be a very significant cost for people who live in (rented and owned) apartments.
Maybe this will change with the $35k Tesla in 2016/2017 but even that is significantly more expensive than a basic Corolla - if the cost difference is $10k and the car is driven 10k miles/year and gets 25 miles/gallon and gas costs $4/gallon and electricity was free, it would take 6.25 years to make up the difference. That extra $10k seems to be hard to justify.
When I talk to friends/family about electric cars, the issue that always comes up is range. These are people who maybe drive more than 100 miles in a day once or twice a year and this is a huge concern. I don't know what happened with Tesla's robotic replacement for battery packs, but until it is common place or cars can travel 1,000 miles on a charge (and can be charged in less than five minutes) or "Mr. Fusion" becomes a reality, I don't see this not being an issue with the public at large.
Maybe we could see the tipping point if the price of an electric car was comparable to a gas powered car but I think it will take lower costs and essentially infinite range for it to happen.
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"expect that future to be here soon."... Soon.. like 50 years?
the tipping point will come when gas stations, not a massively profitable business, start to go out of business as many more electric cars are sold,
This idea is simply bogus. Here's a good analysis of the argument, but a choice quote sums up the problem with the argument:
Consider that in 2009 there were 246 million motor vehicles registered in the United States. A 10% reduction would be 221 million vehicles but that is how many vehicles there were in 2000.
Gas stations didn't go extinct in 2000 because there were fewer gas vehicles, and they won't do so now. In fact, there are already fewer gas stations now, mostly because gas-powered cars are more efficient. However, no one started yelling tipping point because gas-powered cars became more efficient, an effect which is probably more important than electric vehicles in the foreseeable future. There still so many that the gas-station-tipping-point hypothesis is BS.
...there's gonna be a market for places to take a piss.
I still see horses on the streets of my city. They may be very limited in number, and very limited in use (police and tourist carriages), but they're still there.
I look forward to the offloading all the associated penalty costs of car ownership in favour of a service model.
You can do that today but you'll have to move to someplace like Manhattan.
There's a lot to like about EVs, If i owned a house and could get a charger, i'd consider a tesla, and if there were an electric jeep wrangler, i'd be all over that thing. massive torque and the ability to roll over indefinitely seems pretty darn cool to me. There's one thing i'd really miss though: Manual Transmission
After a decade of owning an xterra with automatic transmission, i bought a used 6 speed miata. shifting gears is just so much fun. yeah, it's more work, but there's something really rewarding about nailing the perfect down shift, powering out of a turn, and shifting back. it doesn't matter that a modern automatic could do it better than me. it doesn't matter that an electric roadster would perform better. There's just something about knowing I did it.
I can get a brand new, gasoline powered car for under $20k that goes 400 miles on a tank and gets 40 miles per gallon. I don't see an electric car coming anytime soon that would be a better alternative to that considering that gas prices are reasonable (where I live at least). Create an electric car that can go at least 300 miles, is under 20K and can be charged in a few minutes and maybe we'll talk.
I expect a hybrid sort, which is more like a Flying-J travel center. Restaurant(s), convenience store, a couple of service bays, and the refuelling stations. Sometimes there are some stores like a small shopping mall, usually with supplies that someone might have neglected to remember to bring, like beach supplies if on the way to California, or heavier jackets and boots if on the way North.
The restaurants are acceptable even if not great. The convenience stores and retailers are overpriced but can be useful in a pinch. The service area can deal with tires and other things that need to be fixed quickly.
Do not look into laser with remaining eye.
Why not just combine both? Large population centers would benefit from it. Ag areas could buy less water. A win-win for the both communities.
In other news, they apparently signed a deal with Amazon Prime :-) First episodes in 2016.
Apparently the deals they make with the gasoline/diesel suppliers are so bad there is almost no profit in selling gas.
That is correct. The business model is basically that it is a concession stand that uses fuel as the means to lure people to the store. Kind of similar to how a movie theater makes all their money on concessions because the revenues for the movie (around 80%) go back to the company distributing the movie. Pretty much all the profits in the oil and gas industry are made by the big oil and gas companies. They might have service stations (like ExxonMobil) to vertically integrate the entire supply chain but independent fuel stations really don't make any money on the fuel itself.
I have no doubt that electric car sales will keep increasing as the technology gets cheaper and better. That's true for everything.
But just like the "OMG ... solar panels are exploding onto the scene, and soon, EVERYONE will have them and pay nothing for electricity!" commenters, you've got a group trying to convince us that electric cars are going to take over in just a few more years.
Both groups have ulterior motives to keep hawking these technologies and come up pretty short when you look at all of the facts.
For one thing, even if electric chargers were everywhere and "range anxiety" was rendered a complete non-issue, AND costs came down so electric cars cost you no premium whatsoever over a gas powered counterpart? You'd have the problem that most electrics are still your generic 4 door sedan or economy car form-factor. The last vehicle I bought was a Jeep Wrangler, and I love it -- but I doubt you'll see one of these sold in an electric version for a LONG time, if ever. Not much available in all electric full size pickup trucks either, or in large cargo/conversion vans, or even full size SUVs.
Another problem which the industry is really downplaying right now is your resale value as these vehicles age. Sure, right now, it seems like a non-issue because so few used electrics are even for sale, the ones out there get sold at prices sellers are happy with. What I'm saying, though, is that given enough time -- electric motors wear out. Even simple devices like ceiling fans develop bad motor bearings or brushes wear out inside them and they start making ticking/clicking noises and eventually burn out. Electric cars may not have near the complexity of gas powered vehicles, but that means that instead, they rely on relatively few, expensive parts that make up the car as a whole. If you've got an old battery that doesn't hold much charge anymore, combined with a failing electric motor -- are you at the point where the car is essentially scrap, vs. the cost of repairing it?
I think with traditional vehicles, you're far more likely to have random, smaller components fail over time, here and there. So someone gets tired of spending a lot of money on the "money pit" of replacing dry rotted hoses and belts and other wear items like brakes and they decide to sell the car off -- but the next owner finds he/she got a pretty good deal out of it because then it goes for a long time again with relatively little breaking down. Even a total engine rebuild, while a several thousand dollar expense, means the main part of the car is good for another couple hundred thousand miles of driving again.
His argument is that EV adoption will be like iPhone. The iPhone was so superior to flip phones people had to gave it. So his argument goes that EVs are so 'superior' to internal combustion vehicles that they'll see the same adoption rate. What a crock. The iPhone didn't require you to adopt a new charging paradigm; you already had 120V (or 220V) electric socket in your abode that you used for your flip phone. Fine if you have a house, install your charger in your garage or in your driveway, but do we really think chargers are going to appear in apartment parking lots? Will renters want to pay for them. Or will Uncle Sam force property owners to install them?
EVs remind me of CFL light bulbs. Daft, inconvenient (see how long it takes for one to come on at night in Minnesota in January), stupid things that were shoved down our throats by the government while LED bulbs that are vastly superior were still in development. Somebody just needed to take a timeout and wait a few more years for the correct technology to arrive. When they get FCVs right, then we'll have our vehicle of the future. New battery technology? We might as well be waiting on cold fusion. A fill up with hydrogen or CNG will take about as long as a fill-up with gasoline. I don't see you ever recharging a battery that fast without blowing it up.
And what's the range of a Tesla S with a boat trailer, anyway?
EVs cost significantly more than gas cars, don't have the range of gas cars, and apartment dwellers have no way to charge them overnight.
All of which are solvable problems. With scale EVs eventually could be cheaper than gas cars since they have fewer parts. There already are EVs with range competitive with gas cars (see the Model S) and they are only getting better. As for apartment dwellers, eventually apartments will end up providing charging infrastructure though I fully expect this to happen late in the game because the cost isn't trivial.
Electric vehicles will probably reach a tipping point when either A) recharge times get to less than 15 minutes with a 200 mile range or B) EVs with a 500+ mile range are developed and economically feasible. Until that happens we'll see hybrids serving as a technology test platform until such time as the battery technology matures sufficiently. I fully expect most luxury cars to be plug-in hybrids within the next 10-15 years. I think you'll start to see semi trucks and long haul vehicles becoming hybrids with a power train similar to locomotives (diesel with electric motors driving the wheels).
EVs won't reach the tipping point tomorrow or even probably 5 years from now but I do think they are the likely future with hybrids being a stepping stone to get there.
No sub $11,000 electric car that has 100 mile range.
No electric car that can charge in 6 hours at home without spending thousands on a fat charger and an electrician and permits to install it.
No apartments with electric charging stations.
So nope.
Do not look at laser with remaining good eye.
If I were to buy a new EV today, with the pace of improvements, in 5 years what would the resale value be compared to a IC vehicle? Battery lifespan, new technologies (faster charge, better range) and one would assume lower prices for new vehicles...I can't see EV user prices being very good after 5 years, and virtually nothing after 10.
And frankly, current ranges on EV's make them pretty much useless for trucks. Who really wants to stop for a couple hours a couple times a day?
You won't see pure EV trucks for a long time. What you'll see is a power train similar to that on locomotives. Diesel engine charging electric motors with a battery bank to deal with the excess. It's very efficient, huge torque and the technology is well understood. I'm kind of surprised we aren't seeing it already.
Is that guy serious?
Does he think that if he just starts calling petrol powered vehicles inconvenient that it becomes true?
As several others have pointed out, electric cars are massively inconvenient for those that drive a long commute and/or live in an apartment complex where no charging is possible.
There is simply no means of travel which is more convenient that petrol powered cars. I would love to have an electric car, but for where I live, it simply is out of the question given the massive limitations of today's battery and charging tech.
While in general I think battery swapping is a stupid idea for cars (there's way too much need for different form factors, capacities, performance capabilities, etc, and it makes up such an integral part of the structure due to its size and mass and represents such a great amount of capital one would have to stockpile), I think it could actually work incredibly well for trucks. Rather than having them in the cab, I picture them slotting under the trailers (where various hardware is already often slotted), with a power connection to the cab. It would in such a situation be very easy to have a single form factor for the batteries and very easy to remove and reinstall them - you already have a standardized shape, easy undercarriage access, and the structural strength is already right where you need it. And whenever a truck picks up a new trailer that's been sitting around for a while, it could be already charged and ready to go. The cab would of course need its own batteries to haul itself around a good distance when not towing a load, but the trailers could basically hold the power for their own towing needs. And it would have little effect on an empty trailer's cost - it just needs the mounts for the batteries installed and the wiring to feed the cab, but would otherwise be a normal trailer haulable by any vehicle.
Also, I can kill you with my brain.
All of this speculation that "gas stations" will start closing is complete BS. They will just put in charging stations so they still have the traffic that gets people to buy higher margin items like snacks. And the last time I checked every fueling station has electricity. Demands change. Businesses change to adapt.
I am not interested in articles about life extension advancements.
Speeeeeeeeeeeeddddddd!!!
Is that you Spritle?
Say, how much electricity can you carry in a 2 gallon container?
Probably enough to transmit a signal to somebody with a generator, and the jumper cables.
“He’s not deformed, he’s just drunk!”
Now, MAYBE, we'll have rapid-charging technology and much more energy-dense batteries soon enough. But currently, I (living in New York) would be unable to drive to visit my parents in Florida in an electric car.
I'm not the only one with the problem. Ground-based shipping is what will keep the petrol stations alive, at least along the highways, at least for diesel. Does this mean that in the US, people are going to be forced to buy diesel cars to drive long distances?
I can't see electric cars being at the same or less purchase price than gasoline powered cars for some time. Don't forget there is also the cost of the charger installation and this could be a very significant cost for people who live in (rented and owned) apartments.
I don't think we'll see significant adoption of electric cars until they start reaching a significant portion of the sub-$10,000 used car market because most people cannot, or are unwilling, to drop $50,000 on a brand new car especially given how plight things look for the middle class in the past few years. I'm somewhat basing this on when Japanese 4 cylinder engines started hitting the US market around the late 1970's and only relatively wealthy people could afford them but now that it has been some 40 years these cars have had time to saturate the used car market so now everyone is driving a 4 cylinder Honda Accord or similar.
Say, how often does your car work better after an automatic update from the manufacturer?
There are two types of people in the world: Those who crave closure
What you are talking about already exists, and has existed for decades, and is in use on tens of thousands of households across the fruited plains.
I Allways wondered why everyone who thinks that flywheels are viable for vehicles forget about the giroscopic effect, a flywheel with a inertial mass huge enough to power a vehicle would present a huge new set of problems to think about. Keep in mind that even if you mount it horizontally to avoid the effect when turning, any lateral force, like when making turns at high speed, or hitting a speed bump would create a very noticeable backlash from the flywheel.
At night? Of course. Better yet, at some time between midnight to 7 am. Why do you ask? The power grid capacity is sized for peak hours as there is usually no way to store the electricity generated by big power plants for later use. These peak times occur as people leave home and when they return from work. When everyone is sleeping that generation capacity becomes idle, and then It can easily be put to other uses.
Disclosure: I am a developer, but also a power plant technician.
Religion: The greatest weapon of mass destruction of all time
I also have though through the battery swapping thing and have concluded that it is problematic and would just be a workaround solution...much better for cars to not need to swap.
But you bring up a good point about trucks. That might make sense, although I'm not sure having it an integral part of the trailer makes sense because the load might need to keep moving even if the batteries are not. But battery swaps seem to make more sense where there are limited, repeatable, planned routes. That applies to city buses and similar. For general cars, it just seems like we'd need to many batteries moving around, a waste in its own sense.
The internal combustion shall always be a jalopy, or contraption. All still based on 18th century steam power. Pure Rube Goldberg, the monkey motion that goes on in these machines. When considering total cost of operation, in terms of the only thing that matters, human effort, the electric comes out way ahead. And unlike petroleum, it can be produced anywhere, and much more cleanly. But, internal combustion sounds so much cooler at the drag strip.
“He’s not deformed, he’s just drunk!”
Yeah, that's great and all, but does it store 2 weeks worth of power? Where I live I've had power outages that have gone on for 7-12 days multiple times in the past 5 years. I still need to be able to get back and forth to work, drop off the kids at daycare, etc. I can't be stranded because my vehicle won't hold enough travel capacity.
...marketing hype from someone who wants people to buy electric cars....
Have you not heard of "gimbals"?
No, you're not alone. Also, if you're refusing to listen to digital music because it doesn't sound as "warm" as your LP's, you again have some company. But you should notice that the world didn't exactly wait until your particular criteria were fulfilled before digital music took over. That is the nature of tipping points: There comes a time when a new technology is good enough to work for most people, and most people drive rather short, predictable distances with their primary commute car.
Yes.
As far as efficiency, you fell on your face. Sorry man. The 35% for the car is the engine. That's the max possible, real IC engines in consumer cars are closer to 25%. Your novel idea that that is higher than electric cars get is funny, but no. Also, battery charging using the battery technologies already used in cars is closer to 85% in the worst case, and over 90% average. Nobody is building cars with lead acid. And "battery discharge" is not 75%, the average is over 90%. 75% is the lowest efficiency, which you get briefly at the end of the cycle when the battery is already charged and you're only using a tiny bit of current to top it off. The main part of the charge that uses most of the power is at the higher end of the efficiency range for the battery. You're whacking battery efficiency down twice with made-up numbers and pretending to be science-y.
Battery charging efficiency is actually near 100% below 70% charge. Remember, you're not doing much work here, physically. There is no reason to desire there to be an extra loss here. ;) Discharge loss is also normally only a few percent, not 25%. Almost all the losses in your "equation" are from made-up numbers that are nowhere close to reality.
Fuel cell storage efficiency is only 20-60%. No surprise, because hydrogen atoms are larger than electrons, and so filling up the cell requires vastly more physical work.
Flywheels are super-heavy. The funny part about what you say there is that small flywheels used the same way as electric regenerative braking can increase fuel efficiency in a city, with frequent start/stop, but the mass of flywheel you'd need to be useful at a 50+ mile range would be really heavy, and have huge friction losses. It can be done, it has been done, but you get a slow tank that is inefficient, not a fuel-saver.
Not having better numbers is no excuse for just making them up as if a guess what you use when you can't be bothered to look any of it up, and don't already know about the technologies.
I wasn't sure, but thought the question had to be asked. There are about as many cars as people in the USA, and if all the cars were electric, getting charged at night....
Consider replacing the electric commuter-car battery with a flywheel. We have the tech to do this for ranges of 50 miles or so.
Why would you, though? Flywheels have atrocious energy densities.
We should be thinking about replacing batteries with "fuel cells", because, like hydrocarbon engines, only fuel (most agree hydrogen is best) needs to be carried around, and the waste (H2O) can be dumped.
Wrong. A fuel cell car also needs a sizable battery, because a fuel cell capable of providing sufficient output for acceptable performance would be massive and expensive. A battery needs to be included to provide the peak power and the fuel cell basically acts as an on board generator to keep it topped off.
And given that, it's a waste. For all the solar energy you collected to make and process the hydrogen, you could have put that directly into an EV's battery and come out way ahead.
=Smidge=
Subsidizing the cost of nascent "green" technology is needed to prod the industry to produce and learn how to make a better green mouse-trap through experience and R&D.
It's paying off now as electric cars are getting competitive. Gasoline engines have been the dominant car technology for a century, and thus have had a lot of R&D behind them. Thanks to subsidies to induce sales and R&D, electric cars have evolved to be competitive with gasoline.
Private companies rarely look more than 5 to 10 years ahead. It's why they have to be prodded via subsidies, etc. Finance theory on ROI teaches one to generally focus on the short-term. Whether this is entirely rational or not makes an interesting debate, but it's the ruling view of the current business world.
By the way, I consider "soft" socialism to be incentive-based. "Hard" socialism would be outright banning products. I'm generally against outright banning for products, such as incandescent bulbs and sugar-loaded Big Gulps. Tax them heavily as a disincentive, but don't ban them.
Table-ized A.I.
"The future of automotive transportation is an electric one and you can expect that future to be here soon."
Soon, eh?
I remember the last time something was supposed to be here "soon". It was IPv6 about fifteen years ago.
I haven't smelled this level of FUD since Y2K.
And then you have to create a transmision to get the energy out of the damn flywheel without fucking up the gimball wich seems to be not so trivial considering the movement that the flywheel would have inside said gimball.
Not a problem really. With a small flywheel for in-town, it does pull to the side a bit when you engage, but not worse than wind, and people adjust to it easily.
The real problem regarding the forces are the accident danger. If you crash it can really tear your car apart.
My friend had flywheel assist before he went electric. That was in the early 90s. Trust me, the reason you don't see it around very often isn't because of viability concerns; mostly cost/result/accident danger. It is expensive to install, uses up limited space, and isn't a miracle at all.
The trick is that it is almost impossible for all your consumers to use all the capacity available to them at the same time (the same thing happens during normal daytime).
Religion: The greatest weapon of mass destruction of all time
And how do you get the energy out of such an arrangement, because a mechanic transmission to a flywheel rotating freely inside a gimball sounds dificult to me.
Ha! I suspect it would more likely be bricked.
When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
I don't know where the tipping point is, but having owned an EV (well, a Volt) for a year I can say it's not any time soon. Here in California, electricity is as expensive (if not more so) than gas. There's still sparse charging infrastructure, and even if there wasn't--until you can get at least 50% of a charge in the same amount of time it takes to fill a gas car's tank up, I don't think we'll see this tipping point. It still takes 30 minutes to "quick charge" a Leaf. Otherwise, EV use will still require owning a home to have your own high-speed charger, and the concept home ownership is a relic of the past for most people aside from the extremely rich (for whom a Tesla is the equivalent of a Toyota Corolla).
ralphbarbagallo.com
It's already going that way. "Service stations" are completely dead, and regular gas stations are being replaced by upscale, fancy places like Sheetz in the south where there's tons of food (both packaged and cooked on the spot) and drinks for sale. You can go to one of these places and get a pretty decent lunch. They probably make all their profit on the food and drinks. The clean, nice facilities help draw people in, both for the food and also the restrooms (which used to be a bad joke--2 decades ago no one wanted to use a gas station bathroom unless their life depended on it).
This won't happen until electric cars with Model S-like capabilities cost $20,000 - $35,000. The Volt and its various competitors don't really count as Model S equivalents, and few would compare them directly. While it's true that you can save a huge amount on gas compared to electricity if you drive a great deal, that's money people are used to budgeting per month and it's not typically enough to compare to the up-front price of the car.
Now, if Elon and Co intended to deliver a Model S at even $35,000 in the next year or two, than I might agree with this claim. Until that happens, I don't see electric cars cresting some enormous tipping point.
The money you can save each month on gas doesn't mean squat when the difference in monthly payments on the cost of an electric car vs a conventional vehicle of similar size can often be more than what you'd spend on gasoline. You can mitigate the issue by extending the duration of the car loan to lower monthly payments, but long-period loans on something like a car doesn't tend to make a whole lot of financial sense.
Also, the effective daily range really needs to go up on most EV's.... (that is, how far you could reasonably expect to be able to go in one day, including any time spent recharging, travelling in absolutely any direction that there are roads in the first place). Sure the range on EV's right now is practical for about 90% of all driving, but when that bloody 10% is going to be a recurring problem, you still feel like you need to have a regular car at your disposal too. But not everyone has the luxury of being able to have two cars... one for commuting and the other for longer trips, especially if they are paying more money for the electric car in the first place.
When EV makers can make a vehicle that is actually priced on parity with what you'd spend on a conventional engine car of similar size plus the cost of gasoline, I will start to consider it... when they can allow me to go absolutely anywhere I want to, and drive a thousand km in a day if I want to, including time spent stopping for a recharge, and not charge me a premium of more than double what I could spend on a conventional engine car of similar size and otherwise comparable style (I'm looking at you, Tesla), then sign me up.
File under 'M' for 'Manic ranting'
Can the electric grid handle charging that many cars every night?
In 2014, the United States produced 4,093 billion kilowatthours of electricity. There are 254 million cars in the United States. It takes about 30 kilowatthoursto charge a completely drained small electric vehicle. Assuming that a car needs to be charged only every other day, this represents 3.75 billion kilowatt hours of electricity every night, or over the year, about 334 times our current electrical usage.
If you are not allowed to question your government then the government has answered your question.
Ever notice how electric car backers seem to assume everyone owns a garage for their car where a charging station can be installed?
With charge times measured in hours, what are all the people who rent or park on a street going to do?
Flywheels.. fuel cells.. 'charging efficiency'.. never mind all that. Where's my all-electric small pickup truck? Where's my electric motorcycle? Not everyone needs or wants just a two- or four-door sedan, or a minivan, or (LOL) an SUV. The day that I can get a fully electric light pickup truck with at minimum 400 mile range, then we'll have a discussion about leaving the internal-combustion engine behind. Likewise motorcycles: My current bike (7th I've owned) gets about 180 miles per tank. When you can come up with a fully electric replacement for it, then we'll talk about retiring gasoline-powered motorcycles, too, but not before. Also there has to be infrastructure for rapid charging that's at least as ubiquitos as gas stations are now, and that's the hard part.
Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
Thanks, but you are sounding somewhat like a zealot. I first researched the data quite a few years ago, but hadn't known what recent improvements have done for electric battery charging/discharging. I DO know that electrical resistance inside batteries can be a source of significant energy loss; in the old days efficiency was only about 2/3, not the 3/4 I estimated in the prior post --and that is why I asked for better numbers! What I didn't know was how much those resistance losses have been overcome, and if the overall efficiency is more like 90% than 75%, that's cool. Next, you ignored the fact that a lot of cars have Diesel engines, which are more efficient than gasoline engines, even if the production-car efficiency numbers are less than the ideal numbers. NEXT, I "whacked it down twice" because you have to charge the battery, and then you have to discharge the battery to use it. Both ways have internal-electrical-resistance energy losses!
Your talk about "fuel cell storage efficiency" is meaningless. A fuel cell works very much like a battery, converting chemical energy to electrical energy. So if a battery can be 90% efficient, a fuel cell should be able to have that efficiency, too. There is no "storage" inside a fuel cell; the fuel is stored in a separate tank. I do know that hydrogen fuel-storage tanks are bulky, but electric-car batteries are bulky too, and weigh more (because of also storing the oxidizer). You do know that overall automobile weight is a factor relating to how big/powerful its drive system has to be?
Flywheels are NOT necessarily super-heavy, especially when they don't have to store energy for a long travel range. Kinetic energy stored goes up with the square of the rotation speed. So if flywheel A spins twice as fast as B, and both weigh the same, A will be storing 4 times the energy. Modern use of carbon fiber can allow construction of flywheels that spin many times faster than ordinary heavy steel flywheels, for greater energy storage with less weight. This was known back in 1970. Do some research! (Not to mention, you appeared to ignore what I wrote about only using a flywheel for rapid acceleration, no 50-mile range needed).
Ridiculous. Yet another "world changing vision" brought to you by an entitled, elitist cadre of the Bay Area who fail to understand that the rest of the world doesn't live like they do.
The opening premise "well, a lot of people adopted smartphones rapidly, so they'll adopt this too" already smells like snake oil: people adopted smartphones because they were BETTER in almost every conceivable way to the previous generation of phones.*
*would they have done so, if one had to charge the phone for 12 minutes for every 1 you talked? I doubt it.
Let me debunk the list of putative "improvements" individually: (I apologize to /. users for the stupid format characters, but /. still doesn't understand pasted quotes/apostrophes.)
"It's more fun to drive, with smooth, transmission-less acceleration. For most of us it is the fastest car we have ever owned."
- Maybe it's more fun to drive. A vanishingly tiny % of people in this world buy cars primarily based on their "fun". Nobody gives a flying hoot about 'transmissionless' acceleration, nor does 'fastest' really matter in a world with speed limits.
"Itâ(TM)s quieter at all times and nearly silent at low speeds."
- I've never once heard someone buying a new car based on how quiet it is. Never. (OK, I *have* heard of motorheads not buying a car because it's not loud enough.) Considering some of the instant off/on tech in the newest cars, they're exactly as quiet as the Magical Tesla while idling, ie silent/off. And aside from older cars which will naturally phase out of the system, the bulk of noise from a highway is tires, not engines.
"It is always âoefullâ every morning one drives it and you never need to go to a gas station."
- Simply, completely, thoroughly wrong. Well, unless you sleep 3 days at a stretch.Further, I don't know about you, but I drive more than once just in the morning.
According to (https://www.cars.com/articles/2013/11/how-quickly-does-the-tesla-model-s-battery-charge/) the nominal charge for a non-special installation (ie a normal outlet) is FIVE MILES PER HOUR OF CHARGE. That's ridiculous - 60 hours to "fill the tank" to the full range, or (roughly) needing to charge 5x the driving duration.
The average commute in the US is 25 minutes. Assuming highway speeds, that's 25 miles. That means to stay 'level' in terms of range, the car will need to charge 5 hours for each leg of the commute. Go to visit a friend in a city 250 miles away? Sorry, we can't go to a movie, my car needs to charge *four hours* for us to get to the cinema and back.
"It has a user interface - including, notably, its navigation system - as superior to that of other cars as the iPhone was to earlier phones."
- I can't really refute iphone-zealotry, that's religion, not fact. It probably does have a better UI than most other firms, as they really made the most of the newest touch-screens and systems (and had no aesthetic legacy to maintain), but this is likely to be adopted relatively soon by other automakers. Nothing particularly special here, except indeed being a little ahead of the likely curve.
"It is connected to the Internet."
Christ. You know that you should really be paying attention to the road, right? 4g works well enough for map updates, which is really all the driver should care about. And personally I find the modern paradigm of everyone sitting in the car watching their own movies, playing their own games, reading their own narcissistic social media addiction reprehensible. We already suffer from an atomized society generally, you're saying it's laudable to encourage this? I have an alternative entertainment that is perfect for trips in the car with your kids or friends: "conversation".
"It continuously gets better with automatic updates and software improvements."
The Tesla is comparable to a fixed-hardware console. Ever bricked your Xbox360? In any case, electronic systems in petro-cars also get better with updates and software.
-Styopa
You're right of course, but another combination that works with a fuel cell instead of a battery is a small flywheel for acceleration. Assuming that you charge the flywheel to slow down, instead of braking, it is nearly free. It won't give you a sportscar, but it can be enough to overcome the steadiness of the fuel cell output to allow normal driving.
Even if you also assume that the near future will have more efficient hydrogen generation, it still sucks; if there was a hydrogen sea to pump it out of, you'd still be stuck under 60% efficiency to get the ions into the tank. You can't just pour it in like gas, it takes energy to encourage the chemical reaction that gets the ions into the metal.
When the size and weight come down, I do expect them to be a good choice for long-haul shipping. They will probably beat batteries for electric aircraft eventually, too. The fuel cell itself can be designed as a functional part of the frame. If you don't have to count the metal in the cell, or at least you can subtract the aluminum it displaces, then the density improves a lot. For a passenger car that isn't a benefit nearly as soon, because there is limited weight going towards strength; weight and safety are from crumple zones and that is not a good candidate for replacement because there would be different performance when full or empty. The frame itself is not all that heavy.
It is known that hydrocarbon powered cars typically turn chemical energy into mechanical motion at about 35% efficiency (45% for Diesels). It is known that large power plants generate electricity from fuel at about 50% efficiency. The process of charging a battery is about 75% efficient, turning electrical energy into chemical energy. The reverse is also true, for battery discharge (75%), and the electric motors of an electric car are about 95% efficient. We multiply these numbers to get the overall efficiency of conversion of original fuel energy into mechanical motion for the car: about 27%. Even allowing for regenerative braking energy-recovery, it looks like ordinary cars win the efficiency thing here. We need better than that!
Traditional cars and power plants don't use the same inputs. Even if electric cars are less efficient, they can potentially be powered by renewable energy sources rather than hydrocarbons.
You could easily counter any effect of a flywheel by having multiple flywheels turning in opposite directions.
I don't understand your statement
Didn't think it was all that complicated. Your ICE car can go 200-500 miles between refueling. The Tesla Model S can go 200+ miles between refueling stops. That is good enough for plenty of people and hence it is competitive.
My ICE car has effectively unlimited range.
No it does not because you still have to refuel it no different than an EV. The only difference right now is that it for long distance trips it is much quicker to refuel a ICE vehicle. If you drive less than the full range of the vehicle on a given day (most people drive 50 miles per day) then the EV is actually more convenient since you can refuel it at home when the car is not in use. For local driving I'd MUCH rather have an EV in most cases. For long distance driving you want a ICE or a hybrid right now. In time that may change.
In 2013, the average price for a new car was $32K. Many EVs available right now are below that even *before* any state or federal incentives, and many more hit that point after incentives.
Meanwhile, the average price for a used car was $16.8K. I don't know where you'd get a sub-$10K used vehicle from a reputable source (versus a cash transaction in someone's driveway...)
=Smidge=
The range thing is a red herring, and the people who complain about it are short-sighted and stupid. Even right now, EVs are perfectly adequate for most families, since most families have multiple vehicles. It's very simple: one vehicle is electric, and the other is gas. When you need to drive far, you take the gas-burner. For daily commuting, take the EV. For a dual-earner household, obviously this means that one of the spouses will be driving the noisy gas car, but it's better than both driving them. Right now, there's only so many people doing this because EVs are relatively expensive, but that's changing and before long they'll be much more common, even if used mainly for commuter vehicles.
These short-sighted idiots were the same people who said they'd never use a smartphone, and now they all have one. They were the same morons who said they'd never have a computer at home, and now they all have one. They were the same morons who said that 3 TV channels was all they needed, and now they all have cable, and pretty soon even though they're saying they'll never give up cable, they'll be cutting the cord with the rest of us Netflix users. These people are sheep: they follow trends after enough early adopters do it and prove that it works, even though not long before they were loudly proclaiming that "this will never happen".
EVs don't need any more range than current models to be completely viable replacements for at least half of the US's personal automobile fleet. Their main problem is cost: nice ones (Model S) are really expensive, and cheaper ones are $10k more expensive than similarly-appointed gas cars. Hybrids are a decent middle ground, and honestly I'm surprised those haven't done better, but I guess having an ICE plus an electric drivetrain ends up inflating the cost too much, but the Priuses have been doing very well.
what's to stop a Waffle House, IHOP, or similar just having a charging stations outside? I think these "gas" stations or any future derivatives are dead, especially if commercial or environmental regulations are lifted/ nonexistent for electric charging stations.
Nothing; it's actually a perfect business for hotels, restaurants and entertainment venues to get into - put chargers in the parking lots to encourage people to stop in, add a small portion to the bill if they use the charge. They'll very quickly replace the gas stations, which no one really wants to stop at or go inside of.
Truth is like the sun. You can shut it out for a time, but it ain't goin' away. - Elvis Presley (source: imdb.com)
In addition to this, people will be plugging in to recharge at different times. Some nine-to-five people get home at 6pm and stay home with their families while others go out with friends and plug in later in the evening. And then there are the people on night and graveyard shifts. Add to that those with short commutes who will recharge minimally each day and others that will recharge at work.
Eventually, by exploiting a smart grid and your schedule, your car could delay charging for a few hours when it knows usage will be lower and prices cheaper.
Freedom to fear. Freedom from thought. Freedom to kill.
I guess the War on Terror really is about freedom!
You are sounding like a zealot. I did do significant research quite a few years ago, and back then the energy efficiency for charging/discharging electric batteries was only about 2/3, not the 3/4 I estimated in the prior post. I was aware that there have been improvements over the years, but there are still efficiency losses due to electrical resistance inside batteries. Why else do laptop batteries overheat!? If today's battery efficiency is about 90% instead of the 75% I estimated, GOOD. But you still have to "whack it down twice" because you have to charge the battery to make it usable, and you have to discharge the battery to actually use it, and there are internal resistance losses both ways. SO: 50% power-plant efficiency, and 90% twice for the batteries, and 95% for the electric drive motor get us to about 38% (add some for regenerative braking).
Next, you ignored the fact that there are a lot of Diesel cars on the road, that run at greater efficiency than gasoline engines, even if the production-car efficiency is less than the ideal. But that's why the cost of Diesel fuel is no longer less than the cost of ordinary gasoline, like it was before all those cars hit the road (and with turbocharging, they are as quick to accelerate as most ordinary cars). The cost of Diesel fuel, relative to gasoline, has prevented wider adoption. You can expect Diesel-car owners to be among the last to switch to electrics, if the efficiency isn't improved. Not to mention one other factor: as more people do switch to electrics, the demand for gasoline will drop, and its cost will also drop (has famously dropped months ago because of an increase in supply, but the Law of Supply and Demand isn't done with it yet). Cheap gas will keep those cars on the road longer.
Next, you are not making sense, talking about "Fuel cell storage efficiency", because fuel cells don't do storage; fuel is stored separately from the cells (and I specified that with sunlight production, the efficiency of fuel generation can be ignored). Since internally they work basically like batteries, if batteries can work with 10% internal electric-resistance losses, fuel cells should be able to do the same. It is just a matter of design. That's why I estimated 75% for fuel cells, just like I did for batteries. I am aware that hydrogen fuel tanks are bulky, but electric-car batteries are bulky, too, and weigh more, because of the oxidizer they store along with the fuel.
Finally you need to do some research about flywheels. They are NOT necessarily heavy, because the energy they can store goes up as the square of the rotation speed; if Flywheel A rotates twice as fast as B, then A stores 4 times the energy of B. Modern use of carbon fiber can allow the construction of flywheels that spin many times faster than heavy steel, so weigh considerably less while storing more energy. This was known back in 1970! Not to mention, you ignored what I wrote about only using flywheel energy-storage for rapid car-acceleration, no need for even a 50-mile range.
Depends on the manufacturer.
http://www.pcmag.com/article2/...
There are two types of people in the world: Those who crave closure
I specified "motor/generator" --that's how you spin up the flywheel, and that's how you get energy out of it (95% efficiency both ways). Are you deliberately ignoring things I wrote? Do you think there is a problem running wires along gimbal-frames and through holes in gimbal-axes?
Consider replacing the electric commuter-car battery with a flywheel. We have the tech to do this for ranges of 50 miles or so.
That "50 miles or so" limit is holding me back. I commute almost 30 miles each way (housing near my office is prohibitively expensive), so I need a longer range. I need even longer range for road tripping or weekend outings. I'm not saying everyone has the same needs, just that this solution doesn't (yet) work for me.
Yes, the danger of a broken flywheel has always been a concern. The recommended solution was to put it inside a shell that can "take it" --which is much easier to do if the flywheel is made of carbon fiber instead of steel. Also, the shell can be somewhat evacuated, to reduce air-resistance losses.
I don't mean this because self-driving is cool. Rather, it will make electric vehicles practical in ways they can't be today, particularly in cities.
If you live in suburbia and have a garage, charging your electric car is no problem. If you live in a condo or apartment, you may not have such easy access to electricity. The solution would be to have charging stations available in cities. But then you'd have to walk from the station to your destination to wait for the car to charge. But if the car can drop you off, and then drive itself to the charging station, there's no longer a problem.
Come to think of it, if this sort of system existed, car share / rental programs would instantly become a lot more convenient.
Apparently the other guy didn't read all of what I wrote. I DID end up talking about using a flywheel in conjunction with a fuel cell. The fuel cell would provide steady low-level power (20 HP or less); the flywheel would accommodate rapid acceleration (and store energy from regenerative braking). There is no need for the flywheel to be so big/dangerous as one which is built to provide for significant-distance driving. And the main reason for using a flywheel instead of a battery is that 95% energy-conversion efficiency of motor-generators.
Color me slightly embarrassed. After posting the first of the two very-similar messages, it disappeared, and I thought maybe I hadn't actually posted it, but I most certainly had done a full-page-refresh. I didn't notice that the page had more than 250 comments, and that comment was one of the later ones, and therefore not part of the default display. So I ended up writing the message all over again...
but I need to stretch my legs and rest a bit after driving 180ish miles. so stopping every 3 hours is still roughly in line with typical driving practices
I enjoy the five minute stop to get gas every 300 miles or so in my own car on road trips. I do NOT enjoy a 30 minute stop every 200 miles... That's called a "breakdown".
That's the kind of thing that turns a 10 hour one-day drive into a 17 hour mandatory two-day trip.
It's not like that is so uncommon either, lots of families I know only really stop for lunch, otherwise they are driving very long distances per day with short refueling stops.
Something else no-one seems to consider is the vastly larger number of "refueling" stations required if most cars are electric, each car has to stop for 10x longer, at shorter intervals...
"There is more worth loving than we have strength to love." - Brian Jay Stanley
Sure electric vehicles might replace commuter vehicles at some point. But what about all the tractor trailers, delivery vehicles, construction vehicles, pickups pulling boats or horse trailers or camping trailers, landscapers, etc. These kinds of vehicles will need to buy liquid fuel for quite some time. Also, the average age of cars in the US is around 12 years. People aren't going to get rid of perfectly good cars just because. Gas stations are going to be around for quite some time.
I guess I don't have a problem with the "throaty growl of a well tuned engine" as long as you keep the heavy acceleration to the freeway or rural (no houses around) roads.
It just seems like there is a direct relationship between cars with a "throaty growl" and car owners with heavy right feet.
I live on the 3rd floor of an apartment complex off of an, otherwise quiet residential street, and I can't keep my windows open in the summer due to people (I can only assume) flooring their accelerators as they start off from a stop sign on the corner...
This phenomenon also happens when I am out walking or biking. The "throaty growl" cars seem to accelerate more heavily when there is an audience present.
My eyes reflect the stars and a smile lights up my face.
EVs are not necessarily cleaner or better because they need batteries. Mining of the rare earth metals required for the batteries is mostly monopolized by China, and is an unregulated ecologically damaging industry. A shift to electric will move the US from a being energy independent with fossil fuels to being dependent on Chinese rare earths. At any point, China could make our lives miserable by cutting off exports of rare earths, making it very expensive to make or buy batteries. The cost to restart rare earth mining in the US is in the tens of billions, and a decade or more away after all the lawsuits by the eco-lobby.
Any sufficiently advanced technology is indistinguishable from Macintosh...
Self-Driving cars are what will drive mass sales of electric cars. Electric cars will always be a novelty until that time.
"There is more worth loving than we have strength to love." - Brian Jay Stanley
Auto ownership has probably hit it's peak, self-driving cars will make the expense of individual ownership less and less appealing in general. And owning an ICE for road trips is ridiculous. Just rent the car.
When did we reach the conclusion that self driving cars is some sort of given fact?
I think it is pretty straight forward that private ownership will decrease though it is not often presented well.
1) Self drive will make taxi's much cheaper by removing the cost of paying the driver.
2) Convenience will increase too, partly through better allocating the available vehicles. This is made easier with self drive since it does not have to link up with an available driver but it is also through better information technology predicting where cars need to be.
3) With cheaper and more convenient taxi's more people will use them. Those that can only marginally justify owning a car will give up their cars. The increased use will also make taxi's more convenient creating a bit of a feedback cycle.
However, I am not convinced that, outside of dense urban areas, the ratio of people who can practically give up their cars even with cheap taxis is high enough to produce the "almost no-one owns a car" utopia. I think most suburban dwellers will still own cars. They just won't drive them. The last driven as much by the cost of insuring a manual drive car as the convenience of autonomous drive.
3.75 billion kwh/night * 365 nights = 1369 billion kwh/year, or almost exactly 1/3 of our yearly energy production of 4093 billion kwh.
One third of our energy budget going into automobiles is certainly a significant portion of yearly production, but not nearly as impossible as the above math made it sound.
Add solar and wind power, new generating stations, etc., plus not everyone will switch over to electric immediately.
So, let me get this right:
,and considering you now need 2 instead of one you're diminishing the enviromental advantage of not having to manufacture a battery.
You want to substitute a heavy battery pack with an efficency that's around 80-90% and with a single electrical motor.
And you want to use something that will be heavy too unless you have magical weightless flywheels, with a pair of electrical motors (one in the flywheel and one to drive the wheels) that also add to the wheight and since you apply the electrical motors twice, kills some of the efficency advantage you propose because that extra motor has an efficency that's around 90-95%, without considering aditional mechanical loses.
Ever heard of overcomplicated solutions?
The gains for your idea are minimal:
The flywheel is a mechanicall solution, and as such it's WAY more prone to breakdowns.
Modern electrical motors require rare earths
The safety doesn't improve either, because flywheels are just a different kind of danger vs Li-ion.
75% of US consumers and over 85% of US millennials own smartphones. In fact, in 2005 few if any of the futurists would have even been able to imagine the kind of device most of us now depend upon.
Really? I guess that handful of futurists who could forsee it must have been rocking Palm Treos in 2002. Or maybe they had a pocketPC in 2000.
I was browsing the internet (through my PCMCIA dial up modem) on a PocketPC and running apps and playing games on the touchscreen in 2001. Obviously a cellular connection would have been desirable but at the time bandwidth was terribly constrained however it wasn't like anybody had any trouble thinking "Well if cellular internet is slow today, eventually we'll get at least dial up or DSL speeds."
If futurists didn't see Smartphones coming they were stone dead blind.
Yes well the electric car will eventually make the Zombie Apocalypse a lot less fun... I mean at least you could scrounge, steal, and fight for conventional fuel to keep on running.... What are you going to do now? Use a hand crank dynamo for 12 hours to get 5min of drive time?
Then again, if you chain a bunch of zombies to a treadmill and stand at the other end, you basically just solved all your renewable energy needs! Then some warlord is going to take over a fitness gym and convert it into a power plant... oh the possibilities!
That 95-99% efficiency is really good, and if accurate I would be glad to replace the suggested flywheel with a higher-energy-efficient battery, for quick acceleration. I would still want a fuel cell though, for long range, and less total weight (because of not carrying lots of oxidizer around inside the batteries).
Regarding "well to wheel" efficiency, thanks for the extra data to consider. Note that when ordinary coal-fired power plants generate the electricity for electric cars, we still have energy invested in digging and transporting coal. Charging batteries (or making fuel-cell fuel) from renewable resources is the best long-term way to go.
Good riddance too. Gas stations have been the toilets of America for too long.
My eyes reflect the stars and a smile lights up my face.
One other advantage of a flywheel over a battery is that it can be "charged" very rapidly. If you could get it charged near your workplace, a 50-mile range flywheel car could work for you. But I only brought up the subject because flywheels with motor-generators were so much more energy-efficient than any batteries I knew about, and wanted to work toward using them only for rapid acceleration and regenerative-braking storage.
They can potentially be powered by unicorn giggles, but there's still a lot of coal power in the US, and coal-powered cars aren't great by any measure. Worse, the only "renewable" (what a BS buzzword) power that scales is solar, and that's a poor choice for the mostly-nighttime load of charging cars.
There's no energy shortage in the first place to be worried about: the only good reason to buy an electric car is if it's a better car for the price. The Tesla Model S still isn't really, at the price, unless you're buying for 0-60 times (which I might well do), but for the first time it's close. The real test will be the Model 3 - potentially revolutionary, but so are a lot of things you can't actually buy.
Socialism: a lie told by totalitarians and believed by fools.
Both the heavy battery pack and the motor-generator-plus-flywheel (I never called it magical or weightless, but this data suggests it can weigh a lot less than a battery pack) need at least one electric motor to drive the car wheels (did you know one electric motor can drive a pair of wheels without a mechanical differential?). If the battery charges/discharges at 90% efficiency, while the flywheel does it at 95% efficiency, guess which is superior? (And "rare earth" metals are not actually all that rare; the problem has been chemically separating them from each other, to get the particular ones we actually want to use, and the pollution associated with the process. Obviously that technology needs to be improved.)
Another poster has claimed that modern lithium batteries can have better-than-95% efficiency, making them better than a motor-generator-flywheel. If accurate, the only advantage a flywheel would have is a very fast charging time.
But for the cost and weight, a battery is better than a flywheel in essentially every aspect. For however much you reduce the required size of a flywheel, you can reduce the battery size as well.
Battery systems are damn close to 100% efficient if you're not too close to fully charged or fully discharged, or not diving the current much higher than 1.0C.
There is no advantage to using a flywheel at all. None.
=Smidge=
I like electric cars for basic transport. Truly no nonsense.
Gas cars are actually more fun in the end imo.
But wait until that X class solar flare hits and knocks the power grid out for a day or two. Doesn't matter if you have a garage at that point. Then we'll see if electric makes sense.
have you read that most of these cars have fake engine noise injected in the stereo to make it sound better to the owner? kind of sad.
http://2paragraphs.com/2015/01/fake-engine-noise-now-added-to-make-drivers-feel-powerful/
Try a solar powered lawn mower. Roomba style. Just have it out on the lawn and let it mow continuously.
Since electrics are likely still going to remain toys for middle class people, this will mean that people like me who are too poor to buy one are going to find leaving town even less possible! Thanks, Elon Musk!
Most cars get "automatic updates" from the dealer whenever you bring it into service. There's usually a long list of non-critical recalls that neither the manufacturer nor he dealer is keen to tell you about, but if you get service at the dealer all the fixes will be quietly applied. More and more, these are firmware patches.
So, to answer your question "so commonly that most people never realize there was an update". Tesla is somewhat unique in adding new features this way, but fixes are quite common.
Socialism: a lie told by totalitarians and believed by fools.
Flywheels can be charged up lots faster than batteries. But actually, my personal preference is for supercapacitors, with almost perfect charge/discharge efficiency, rapid charging rates, AND they never wear out. But so far as I know, nobody offers supercapacitors potent enough to be used in cars, even if only for acceleration-power and regenerative-braking energy storage (while a fuel cell is still superior to batteries for long range). That's why I never mentioned them in any of my prior posts here. Does anyone know if the supercapacitor total-capacity situation is likely to change soon?
The car lobby and car culture in the US has been successful at limiting the options for biking.
My observation is that Europe developed a "bike culture" out of necessity because it was economically devastated by two world wars. The resources just weren't available to effect the same high rates of car ownership as in the U.S. The pressure continues to this day, with fuel prices of $6 - $10 per gallon (after converting from Euros and liters).
That that is is that that that that is not is not.
A coal-powered car could work if it had a Stirling engine (about 45% efficiency). Stirling engines are external-combustion, like steam engines.
What I've seen are two horizontal flywheels spinning in different directions. Theoretically nulls out the force -- there's always a bit left, but usually manageable and a mere fraction of just the one rotating.
Flywheels are great for theoretical physicists not so great for material engineers.
No, we don't. Most people are not car people. A car is a tool. We don't care about it specs, and I don't want it to make any more noise than it has to. It adds nothing to the experience and annoys anyone else around you.
Hell, i even enjoy a nice ride in low traffic- but the sound isn't part of the fun, it just detracts from the radio or the sounds of nature around me.
You're a very tiny minority.
I still have more fans than freaks. WTF is wrong with you people?
From what it seems, electricity costs less to travel, especially if you have cheap solar panels. However, you can get 100,000 miles of gasoline buying a 10,000$ car over a $20,000 electric plugin hybrid. $10,000 /(3$gallon)=3,333 gallons of gasoline * 32 miles to a gallon = 100,000 miles of travel. If an electric plugin hybrid car can get around $15,000 or less, then it will be a game changer for people who care about economy.
God spoke to me
When I was shopping for a car last year, I looked at the electrics available.
The Tesla costs more than a house so it was right out.
The price difference of the cheapest electric cars was larger that a lifetimes worth of gas for the the comparable gas vehicle. That is even neglecting the cost of electricity. This needs to be fixed or it doesn't matter what tipping points are posted in the blogs.
Electric cars price most people right out of the market.
When you scale down to car or truck size, mechanical transmissions work reasonably well, and are very efficient these days.
True but...
There is a significant loss, compared to a purely mechanical setup, that occurs when you turn mechanical energy into electrical energy in a generator, just to send it over the wire and convert it right back to mechanical energy at the wheel.
By that logic hybrids in cars wouldn't make any sense either but they do. They are demonstrably more efficient at comparable horsepower even in the face of the conversion losses. Doesn't matter if they are plug in hybrids or not. Plug-in technology helps but it isn't a necessity.
If the bulk of the electricity stored in the batteries comes from a cheap source (i.e. an outlet), it still makes sense, but if you are talking about a high endurance application where the vast majority of electricity is generated locally it doesn't.
Being able to plug in helps but hybrids without plug-in tech still make sense economically. I think for something like a semi or a UPS truck it would be almost a no brainer. Honestly unless there is something huge I'm overlooking I think hybrids make WAY more sense for commercial trucks than they do for passenger cars.
A vanishingly tiny % of people in this world buy cars primarily based on their "fun".
Occasionally I see articles about "how fun it is to drive cars" which I think the last time I had fun driving a car was way back in 20th century as a young dude going "cruising and looking for chicks." I second your comment and I don't give a hoot about how fun it is. Traffic is slow, congested, PITA when I have spare time it is not about going "cruising," it will be going places to meet and interact with people, or viewing nature. Exception would be dealing with chores and repairs at home. I sure not going to spend time in the damn car!
Good comments you wrote and yes, probably someone trying to boost stocks or sales. Reminds me when wine sales are down, articles appear from physicians about benefits of a glass of wine now and then.
mfwright@batnet.com
Not buying that.
Most dealers would charge you for that, as a line item or an upsell.
There are two types of people in the world: Those who crave closure
This quote got me:
Seriously, do people not like the throaty growl of a well tuned engine? Heck, even kids today put the coffee can mufflers for at least that type sound (I don't find it as pleasant as better, large engine sound, but to each his own.)
I've never driven an actual car, but I bought the Voltic in GTA5 without knowing it was an electric vehicle. Despite the speed and good looks, I hated it. Without the engine sound it just seemed... wrong somehow. I think I ran it out of battery also which didn't help my impression.
Even those who arrange and design shrubberies are under considerable economic stress at this period in history.
I don't have the inclination to provide data for everything (s)he said, but I have personal experience with charging efficiency and this study coincides with it...
https://www.veic.org/docs/Tran...
TL/DR:
* 80%-90+% efficiency when charging at a rate higher than 2kW (L2/240V) depending on rate of charge and climate.
70%-85% efficiency when charging below 2kW (L1/120V charging)
My Chevy Volt has 10.7 kWh usable battery and based on OnStar data it takes roughly 12-13kWh to recharge. That's 82-89% efficiency, which perfectly matches the study's findings. Unfortunately the Volt only charges at a maximum rate of 3.3kW. A 6.6kW charger would get efficiency well into the 90s.
I don't always use unix-like operating systems; but when I do, I prefer FreeBSD.
Most ICE vehicles in 25-50k range are fairly slow. They will run 0-60 in 5-10 seconds. Model 3 will no doubt start in the 5s and go to 3s based on options. In addition, the vehicle will be considered superior to all other ICE vehicles in that range. My guess is that is when customers will insist that car makers quit focusing on masdive profits and focus on great vehicles.
I prefer the "u" in honour as it seems to be missing these days.
I get so tired of fucking MBA types that BS without understanding what they are talking about. Numerous studies have shown that the grid and generators in america do just fine with 100% of vehicles moved over, as long as less than 25% charge in the daytime. In addition, if less than 15% charge in the daytime, there is a MAJOR savings to utilities. And as to the rest of your tripe, others have already addressed the fact that not a thing was true.
I prefer the "u" in honour as it seems to be missing these days.
he's only concerned for your safety...
Many of the cars today actually put speakers outside to make more noise.
in fact, car makers would be smart to allow adf-ons for such things.
I prefer the "u" in honour as it seems to be missing these days.
If you want adoption to increase, make them like the cars that environmentalists want to kill off - large & inexpensive.
Twitter supports and protects racists - by smearing their critics with the "Hate Speech" label.
Not, dealers don't charge you for recalls - ever. That's why they're recalls. They charge the manufacturer, and usually make a bit of money in the process. Some things they won't fix unless you complain, but there's a list of things they'll fix the next time they see your car, if it needs them (because they're fast and the dealer makes a little money doing them). There's often a non-descriptive line buried in the invoice somewhere that lists some recall numbers or just mentions them obliquely, with no charge associated, so most people never notice.
How much this varies by brand, I don't know, but certainly the luxury dealers do this, and for safety-related recall everyone does (for the safety ones you'll probably get a postcard about the recall, but the dealer will still just do it automatically). It's not like they hide all this, they just don't call attention to it.
Socialism: a lie told by totalitarians and believed by fools.
The tipping point will come when a usable battery pack costs less than $30,000 (more than a low-end entire car). Sure, the Model S is nice, but at $70,000 to $120,000, it's beyond most people's means. People can keep claiming they are going to come out with and affordable electric with great range "any day real soon now", but until I drive out of a dealership in an electric car with the 200 mile range of a Model S for less than the cost of Honda Civic, I'm going to keep insisting they are full of shit. (Yeah, the Bolt sounds cool, but again, I'll believe it when I can actually purchase it.)
I've abandoned my search for truth; now I'm just looking for some useful delusions.
I'm actually a huge fan of the idea of an electric car with an external-combustion range extender under the hood. High-efficiency turbines (of the sort they use in industrial power generation, not the sort in aircraft and the M1 Abrams) are very durable, but also quite heavy. However, if we're talking about a 40 HP generator in a 400 HP car, it can afford to be 3x as heavy per HP as a normal car engine. Doubling the efficiency is worth something.
Socialism: a lie told by totalitarians and believed by fools.
Right... cause the neighbors cat, small children, and various other small animals will NEVER be out on your lawn..
I've abandoned my search for truth; now I'm just looking for some useful delusions.
You forgot: road maintenance currently financed by a tax on gasoline and diesel, not electricity...
I've abandoned my search for truth; now I'm just looking for some useful delusions.
I live in california.
either diesel Golf or e-golf.
Got the e-golf and never looking back. instant torque, full tank every day, and after tax rebates/ fuel/bridge/maintenance savings, the car is costing us $30-50/mo.
Less than my cell phone for a car.
Also have a nice big truck for weekends/road trips. but it's painful to drive an ICE after driving an electric. the power delivery is just so much better in the e-golf it's laughable.
-and occasionaly a giant moose.
Stirling engines have their fans but if you're burning stuff anyway, why not just make a steam engine? No doubt you can make a small, powerful enough and strong one. Stirling engines were promising but lost to steam 150 years ago because they broke down.
It's an engineering problem whichever you chose, Stirling or steam. With late-20th-century or early-21st-century tech, you can probably make a very good steam engine and on the cheap (simplicity, low cost). Weight, cost, power density and practical efficiency all matter. Perhaps it's down to particular implementations and needs.
Fast charging is nice but can be limited by the charging cable or power supply. Very nice though if you can top off your low energy/high power system on the cheap and for not much time (the small flywheel, or perhaps supercapacitors, or even some lowish battery capacity)
You still need at least a high energy/low power system on the side. External combustion engines seem great (can burn any fuel, somewhat cleanly) but free-piston engine is another possibility there.
I'll also stress that total cost absolutely can't be overlooked, and that it is a good proxy for the environmental costs. If you have a $10000 car that runs an ICE on gasoline and gets 50mpg, and the alternative is a $30000 hybrid car that gets 60mpg, sorry but I would take the first one, even as a hard-line environmentalist.
The tipping point for me won't be an electric car, but an electric 4x4 truck. Then there won't be much of an incentive to come into town except to restock the beer and ammo once in a while.
Watch the AQI loop around New York, and you can see air pollution rising and falling along the commuter roads into the City in lock step with the morning commute. I can't even imagine a New York with 50-80% fewer gas-powered cars on the road.
I've been watching air quality around Denver for 20 years. The used to be thick smog over the city every day. Now, thanks to cleaner-burning engines, it takes a rare, severe weather inversion for that to happen. So I can easily imagine a Denver with no internal combustion engines, because pollution-wise, we've effectively made it 95% of the way to that destination.
That that is is that that that that is not is not.
Driverless changes everything forever in ways we can't yet even imagine.
Something you didn't touch upon: I'm guessing the average privately-owned car is in motion 40 minutes per day; that means it sits around doing nothing 97% of the time. Not good to have so much of society's capital tied up in idle assets! If we could quickly summon driverless cars to get us around, those cars would have much higher utilization rates -- maybe they would be in motion for 13 - 16 hours per day -- in theory, driving the cost of personal transportation way down, with none of the drawbacks of mass transit (like having to walk a mile to a bus stop, and being tied to its fixed schedule).
That that is is that that that that is not is not.
Moreover, huge new usages for electricity make me a little nervous, considering our aging electricity infrastructure.
Heck, I'd like a fast, silent car that I could refuel at home. But I don't see a personal use case for it yet.
Oliver's law of assumed responsibility: If you're seen fixing it, you will be blamed for breaking it.
Betteridge's law of headlines says "No", and that's good enough for me.
-1 Uncomfortable Truth
I don't know how practical a solar powered lawn mower would be. Putting a 100 watt panel on a modified push mower would probably be pushing it, and unless you live in an area with no obstructions (trees, houses, etc) the best you can probably hope for is 18% capacitance (8 hours generation, blocked half the time, no weather considerations). If my back of the napkin calculations are right that would only be about 2 kwh every two weeks. I think your average battery powered mower has a battery pack somewhere north of 3kwh. Assuming all of these quick stats are correct its only going to be able to mow your lawn once every 3 weeks or more. Its possible that you could tweak a few things (lighter construction, lightweight blades, etc) but there are going to be some significant limitations.
Speaking of horses... Electric cars have not yet reached the Tipping point of surpassing horses in the US.
That's because horses are far greener than electric cars. You put in a biofuel in one end and compost comes out the other. And they have excellent self-driving abilities. So electric cars don't stand a chance against horses.
Flywheels can be charged up lots faster than batteries.
That depends entirely on the design of the flywheel/battery. But you know what flywheels do better than batteries? Leak. An idle flywheel will lose energy much faster than an idle battery.
Supercapacitors are neat but have the worst volumetric energy efficiency of then all.
=Smidge=
Steam cars lost out to gasoline engines because of the water problem --they couldn't build radiators good enough to condense all the water that had been turned to steam (after the steam had expanded in the engine). So they had to frequently fill a water tank, in addition to filling a fuel tank. Today, we might be able to build efficient-enough radiators, especially if we go the route of making only 20 HP steam engines in conjunction with something that allows rapid acceleration and storage of regenerative-braking energy, as described in prior posts. You make a 150 HP steam engine for a car even today, and you, too, will probably have to add water at regular intervals. And then there is the efficiency problem, in that car-sized steam engines are probably only/roughly 40% efficient (the steam engines in large power plants manage 50% efficiency partly because of size-scaling). Better things are available, for cars.
There should be municipal chargers, you park your car, you charge it, regardless of where you live. If you have your own garage then you use your own charger. If you park on the street then you use a municipal charger.
In the future there should be incentives to use car charging systems that monitor supply and charge when grid output is high particularly from solar.
Waterfox - a Firefox fork with legacy extension support, security updates and better privacy by default.
What is required is smart car chargers that charge the car when grid output is high, people could have the option between charge ASAP and smart-charge with the default being smart charge.
The solution is just waiting to be implemented.
Waterfox - a Firefox fork with legacy extension support, security updates and better privacy by default.
It's probably also worth considering the energy that goes into getting your energy into the "tank". Oil has to be drilled, refined, shipped and pumped, which is no small feat. I imagine natural gas or renewables would be far less energy intensive, source to tank.
Incidentally 15 kilowatts is the legal limit here for vehicles called "heavy motorized quadricycles", and that's about 20 HP.
Such a vehicle must be 400 kg maximum + 200 kg payload for transport of passenger, or 550 Kg + 1000 kg for transporting stuff.
My other idea is to simply make a steam engined version of that, and to rely on the high torque. In fact, perhaps a two-gear transmission is useful, the high gear being to lower the amount of torque.
All of the hybrids are done wrong. Parallel hybrid is just plain foolish. You inherit everything bad of each system, and it does not give a way out.
Likewise, the current series approach is equally wrong. You take a large regular engine , hook up a generator, and then run a motor with it. Way too much lose.
The right way is for a company to develop a SMALL 30 hp engine that hooks directly to a matching generator. Together, these will be around 100 lbs. Then put 2+ into a vehicle. For a f150 size commercial truck, do 2. For a semi, do 4 or 5. The only place where real loads occur is during acceleration. For cruising at say 70 mph, a semi will only use 50 kw assuming better aerodynamics. As such 3 engines would run to provide the electricity for the motors AND running the cabin.
This is cheaper to make, and cheaper to maintain.
I prefer the "u" in honour as it seems to be missing these days.
Considering the quality of power from your average consumer generator, I am going to recommend against that. Seriously.... That is an unwise option - you have been warned. I do not know how well the cars, themselves, clean power but I suspect it is not designed for such. Your best choice is to get towed home. You'll get cleaner power from a 100' extension cord than you will with a generator designed for portability and home use. I have read no schematics nor taken one apart but I suspect they are a bit more delicate than your average stove. I'd really suggest ensuring that you use power with very little fluctuation. Scope a generator sometime. Even Honda is not immune and they make some fine generators.
"So long and thanks for all the fish."
I drive a BMW (most of the time, I suppose) so they tend to get it right the first time. ;-) Any 'updates' have not, thus far, changed a damned thing important or even fixed a bug that I'd noticed. I have not, yet, noticed a bug of any type. In three more weeks my new one will be ready (custom 640Li) and I expect it to be the same as my two year old 740Li. I am not trading in my old one, I already have someone to buy it at a very fair price. The reason for the 640 instead of the 740? Well... ~650 ponies under the hood is why. For every dead dinosaur you do not burn, I am going to burn two.
When the oil runs out? I am going to set up my own factory squishing babies for more oil. I am not even going to waste money with pain relief or euthanasia. I will finally find out if the racist jokes about Mexicans or Italians is true - if so I will pay to import them into my baby squishing factory for a better ROI. Then I am going to strap three extra engines on the outside of my car. They will not serve any function other than burning dead baby oil. They won't let me go faster but they will show the world that I mean business.
Why? Umm... Other than the fact that I am talking sheer nonsense (other than the new car which actually gets pretty decent mileage and the updates) I am Republican (I am not) and that is the way of our kind.
"So long and thanks for all the fish."
It's almost as you heard about gyroscopes but completely missed the bit where you can mount two in parallel (rotating in opposite directions) before you went on the Internet to let everybody know what an expert you are on gyroscopes.
No sig today...
A fuel cell works very much like a battery, converting chemical energy to electrical energy. So if a battery can be 90% efficient, a fuel cell should be able to have that efficiency, too.
Nope. You need to educate yourself a bit. The theoretical maximum efficiency for a fuel cell running on pure hydrogen and oxygen is 83%. Note: that's the theoretical-you're-not-getting-anywhere-close-to-that-good efficiency, not real-world efficiency.
I posted the exact same comment in reply to that actual blog post and predictably, the zealots are going nuts.
It probably makes me a bad person, because I knew that they'd get upset, and I knew that not one mind (there) would be changed. That's pretty much the definition of trolling.
-Styopa
That was a wild ride. Not sure if I liked it.
Gotta go on it again.
There are two types of people in the world: Those who crave closure
It makes me laugh that no one bothers to look past their facade of green. From the chemicals in the batteries to what it takes to manufacture them to the short life between charges to the fact that 99% of the "Zero Emission Vehicles" in this country are powered by shovel loads of burning coal most people don't want to understand that they haven't even begin to get off of fossil fuels yet.
Is this like cow tipping?
Are We Reaching the Electric Car Tipping Point?
Nope. Next obvious 'no' question, please.
"Electric cars will be better than any alternative, including the loud, inconvenient, gas-powered jalopy,
Loud? Inconvenient? This guy seems to have no clue how a modern gas-powered car works (I have no idea what a jalopy is. Maybe a French word for 'car'?) Another person who thinks people don't like their gas-powered car, even though we gladly buy them by the millions.
The Tesla Model S has demonstrated that a well made, well designed electric car is far superior to anything else on the road. This has changed everything."
I can buy a pretty awesome gas-powered car for $100k. Tesla keeps promising something under $50k, but until I see them out on the road, it is just vaporware. The next person who brings up the Tesla as some type of viable alternative to a $20k gas-powered car gets a timeout in the corner.
I don't think that gasoline stations will go out of business. Some will, but many will convert over to electric charging stations. If electric cars are to become mainstream we'll need plenty of charging stations along every interstate route. Even with a 200-300 mile range, how are you going to handle a 400-500 mile long trip? For average commuting, and short range vacation trips this range may be enough, but what happens when we want to go cross country?
Trucks are the main reason why we need to overbuild roads, and also the huge contributor to their constant need for replacement. Building roads for light weight vehicles is much cheaper and easier.
"It is connected to the Internet." - sure, what a great idea! Now every hacker from Chinese Army will be able to operate your car ;) And self-driving cars are just around the corner, Internet connected car should be mandatory.
I perfectly understand that Tesla, as any for profit corporation, may be dreaming about some kind of monopoly, when they can remotely disable your car, only they can decide if they want to sell you spare part or not, if you are allowed to fix something on your own car or go to their "authorized" facility that may quote something like $11,000 for bent fender replacement to recoup authorization fees. What a great corporate dream! But no, thanks, I don't want it, I would better stay free from their corporate control.
"the concept home ownership is a relic of the past for most people aside from the extremely rich". ;)
Wow!!! You must be true Californian. The land that taxed and regulated itself to death
And it is just small fraction of gas price
No. The most efficient source of hydrogen is thermal electrolysis powered by a breeder nuclear reactor, or (if the local geology permits) perhaps geothermal power. No CO2 required.
We'd have to get over the initial tech investment first though, and (in the case of nuclear) convince the general public not to go apeshit.
AC/DC and DC/DC are way over 90% for the whole conversion from input AC voltage to output DC voltage. The actual AC/DC step is 98%+ efficient.
Just converting the AC to DC, the efficiency is higher the higher the voltage, using a simple diode bridge rectifier. You lose about a volt from the diodes. And now you have pulsed DC. If you use a capacitor to smooth that out, there is little loss. But actually there will be a high frequency switch-mode flyback converter that will take the pulsed DC and convert it to the load voltage with low ripple. This will be way over 90% for any fixed application where you know the input and output voltages at design time. If you need input below ~ 85V then efficiency will be lower. Car battery chargers will always have a known load voltage, so the efficiency will be high.
OTOH converting the 6V AC output of a bicycle bottle generator to AC, the efficiency drops to about 80% because of the fixed voltage drop of the diodes. And if you pedal slowly and that generator only puts out 4V, you're down under 75%, depending on the diodes.
Errr, what else would it be? Electric engines are already fantastic: they offer great performance, don't have to deal with nearly as much heat stress, and there's no need to screw around with a delicate transmission.
OTOH, batteries are currently very expensive, bulky, can't recharge quickly (nor do we yet have the infrastructure to allow swapping at gas stations) and have a limited lifespan. The cheap, energy dense, durable, fast-charging battery has always been the holy grail here.
Electric car advocates continually make the flawed argument that because an electric car can have a daily range of 200 miles or so, it can replace the gasoline car for most users. This isn't true at all. People pay for gas cars not just to be commuter appliances, but to have transportation flexibility. Flexibility matters to a lot of people, even if they don't use it, it matters. It's nice to know that if I wanted to, I could drive my gas car the 790 miles to my in-laws house, or 200 miles to my brothers, or 500 miles to my aunts and uncles. It my cheaper for me to take a plane to go by myself, but, add a wife and a couple of kids, then my transportation cost for each trip is about $100-$150 in fuel and my time in driving.
So, with that in mind, I think the real tipping point for electric vehicles will be total operating time on a charge. That means, I want to be reasonably able to drive 10-12 hours on a long road trip with perhaps an hour time for charging. Once that happens, then electric cars will take over for everyone.
With that said, in a married family, having two vehicles, one for road trips, an SUV, and a daily commuter that is electric, makes a great deal of sense. But most families are going to have that "one" vehicle.
This is my sig.
The whole system is designed for people having stuff "they only sometimes need".
That is the result of technology which has massively reduced the cost to produce items. Once the cost to purchase and store the item becomes less than the cost to rent the item (factoring in something extra for the convenience of ownership) people will buy it rather than rent it. However it is not clear to me that the rental model is more efficient: there is an energy cost to moving the device around as well as the cost of the people to manage everything.
Even if you think of massively advanced technology which might let you 3d-print tools, use them, and then break them down and reuse the raw material to build your next item it is still not a given that the energy cost of that would be less than just storing different objects for occasional use.
Electric cars will never become the mainstay until they can completely replace a gas powered car. Presently there are a number of problems:
1) lack of infrastructure. With charge times being very long on most electrics it takes too long to refuel on the go. Having home users install charging hardware at home is often an added cost, and only solves the problem for one location.
2) up front cost. Most EVs have shit range, and if you want one with good range you're headed in to the luxury car market.
3) very little in the way of used cars. People who buy new cars are suckers who are essentially throwing away 50% of what they paid in the first year of ownership. Used EVs that do show up in this market are often there because they have subpar range or performance.
4) EVs are priced to be a toy for the rich. You'd think that with fewer moving parts and simpler gearboxes that these cars would be cheaper, but this often isn't the case. One can argue that the cost savings over time justifies the higher sticker price, but a lot of people won't take the long term view.
5) Range anxiety. Yes, I get that a lot of people just need a commuter vehicle and that a 100 - 150km range is probably sufficient for those. However, what happens when the edge case comes up where you have to go further, or move to a new city? In a gas powered car this isn't a problem. In an electric this is a major inconvenience.
In order for EVs to really take off public infrastructure has to improve DRASTICALLY. There has to be an EV priced to sell - this means 500km range for ~$20,000 - $25,000 new. People like Musk aren't doing the world many favors by trying to build the most tricked out EV ever for rich people instead of focusing on the majority. This will not drive adoption, it will hurt it.
BeauHD. Worst editor since kdawson.
Yeah, but considering the cost and weight of an armored flywheel shell, you're not going to save money; part of what people usually want from the thing. If you only want efficiency, you're not using a flywheel, you're going full electric with an AC motor and regenerative braking. Air resistance should be low though, even with no case. Shaft friction is going to be high enough that air resistance won't have time to become a problem. You could install giant magnets to avoid bearings, but you're not saving power. ;)
The only practicable solution is to accept the (very small) increase in risk and try to place the flywheel well.
But for the cost and weight, a battery is better than a flywheel in essentially every aspect. For however much you reduce the required size of a flywheel, you can reduce the battery size as well.
Battery systems are damn close to 100% efficient if you're not too close to fully charged or fully discharged, or not diving the current much higher than 1.0C.
There is no advantage to using a flywheel at all. None.
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The advantage to using a flywheel is that the voltage needed for a battery system is very high, so you need a large number of cells to do anything useful. With a fuel cell setup you don't already have a big battery pack. Often an EV battery pack is 500V. A small flywheel to replace regenerative braking can be useful in that setup, because it is displacing a minimum size full battery pack. They don't really make tiny high voltage battery modules, you'd have to use the minimum size one from a hybrid with a matching motor voltage. If you just boost the voltage using normal means like a switch mode boost power supply, you won't have enough current for it to make sense. The internal resistance of batteries combined with the acceleration use case, you just have to have a module with a lot of cells, since each cell has a fixed (low) voltage.
You're right in that it isn't a good choice; battery technology has moved forwards faster than fuel cells. I thought fuel cells would get there first, but they didn't. That's how non-optimal fuel cells are for cars; they make a flywheel make sense! lol
Voltage is only half the equation; the other half is current. What you really care about is POWER.
You can absolutely build an electric car on a 12-volt battery system using exactly the same number of cells as an electric car using a 400-volt battery system. The tradeoff is the 12-volt system will need to deliver just over 33 times as many amps. That's actually not a huge problem for modern batteries, but it makes your conductors and other components huge. So ultimately a balance is struck between voltage and current.
In the end a 12-volt, 400 Amp-Hour battery will have exactly the same energy storage as a 400-volt, 12 Amp-Hour battery.
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You're forgetting the practicalities of real parts. Ohm's law is not the main thing you should be using here. You may only care about "total power," but you have to actually deliver the power at the motor voltage. There are very few devices where you can just use a different voltage, and expect it to draw the same total power. Boosting the voltage that much is going to have large switching losses and require a lot of factory-grade power supply parts. The response time won't be very good, either. Plus, leaning on the upper end of the battery current capability will lower the life of the battery. Even batteries rated for higher current levels will have their main endurance specs listed for optimal use; the high current lifespan will be much much shorter.
You will not save money or weight by using that technology, compared to a full lithium battery module. If you were going to use an under-sized battery pack, you'd still use whatever lithium module you could scrape together, not 12V car batteries. How many lithium cells can you fit into a box the size of a 12V battery, limiting yourself to the same total weight? 200V or so, with way more total power, and not only triple the rated life, but operating in the middle part of the performance capability where life is extended.
Remember, internal resistance is a real thing. And voltage conversion is not free. An expensive full-featured motor controller that is efficient under more than one exact setup is going to cost over $5000. A regular controller is going to cost around $2000.
A flywheel can provide direct mechanical force using any of a variety of standard coupling methods.
It is at least true that when buying a device you care about power. Because the design is finished and you can also compare price. But designing a device using real parts, there are a whole bunch of extra terms in the real equations because of the internal resistances and other physical properties of things. It is not actually symmetrical and perfect as you imply.
You may only care about "total power," but you have to actually deliver the power at the motor voltage.
And you design the motor for whatever voltage you want.
Boosting the voltage that much is going to have large switching losses and require a lot of factory-grade power supply parts.
Are you at all familiar with how modern electric vehicles work? Because that's essentially how they work... that take DC from the battery and convert it into AC. That requires "a lot of power supply parts."
How many lithium cells can you fit into a box the size of a 12V battery, limiting yourself to the same total weight? 200V or so, with way more total power,
You missed the point of the mental exercise. It doesn't matter what kind of battery you use - you can configure it to favor voltage or current. What matters is the total energy stored because that's going to drive the weight and volume of the pack.
How many lithium cells can I fit in the volume of a 12V car battery? A hell of a lot more than 200V! For the same weight I can replace a 20KG lead acid battery with 5,000 4-gram CR2032 lithium cells and get either 18,000 volts at 15mA or 3.6 volts at 75 amps. (And yes, that will just about be the same physical size too, based on rough calculations)
Switch you prismatic lithium cells and I'm sure you can do even better!
A flywheel can provide direct mechanical force using any of a variety of standard coupling methods.
Wrong. At least wrong for any energy storage flywheel worth a damn. These things are spun at 60K+ RPM in vacuum flasks on magnetic bearings - that's the only way you'll get the energy density needed to not get laughed out of the design department. You're not going to extract energy from that using "standard coupling methods." You're going to use magnetic coupling.
You do know that on-board flywheel storage has actually been tried, right? Manufacturers abandon the idea at the prototype stage because it always ends up being more trouble than it's worth compared to batteries.
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Right, once you're designing a custom motor instead of using one made for electric cars, then you can avoid or refute all arguments that are based on practical situations using retail equipment.
If you have magnetic bearings, then yes, magnetic coupling is a standard coupling method. And you can use standard parts, designed to work with your flywheel.
If magnetic coupling is exotic, how the heck are you going to build the custom motor?
The funny part about your "has actually been tried" comment is that yeah, it is actually in use and I probably know people that own the lemons. No, manufacturers didn't abandon it, at the prototype stage or ever. Passenger cars are just not a good use case in any common configuration. There is at least one guy in town using compressed air to power a flywheel, and the flywheel provides starting torque. He charges up with a compressor at home, and gets over 15 miles of range. Based on a French prototype. Lots of gearheads have flywheels in their garages somewhere. Not all have fancy things like vacuum packing or magnetic bearings. You actually don't need that for many use cases.
Right, once you're designing a custom motor instead of using one made for electric cars, then you can avoid or refute all arguments that are based on practical situations using retail equipment.
Why the hell would any auto manufacturer NOT use a custom motor? To try and use an off-the-shelf part would be a serious compromise in your design.
If magnetic coupling is exotic, how the heck are you going to build the custom motor?
Why would you use a magnetic bearing on a motor? Energy storage flywheels need active magnetic bearings in order to maintain their stored energy as long as possible. Motors do not need anything that fancy.
Lots of gearheads have flywheels in their garages somewhere. Not all have fancy things like vacuum packing or magnetic bearings. You actually don't need that for many use cases.
What the fuck? You DO realize there's a distinction here between a flywheel as a general concept and a flywheel specifically designed to store energy specifically as an alternative to electrochemical cells, right? When you're trying to cram kilowatt-hours or energy into a flywheel you're dealing with some serious engineering hurdles.
You really do not seem to have this concept straight in your head. We're talking about flywheel storage specifically as it pertains to automotive use as a prime mover and/or bulk energy storage. In that respect, not a single vehicle manufacturer has developed one past the prototype stage because it's a shitty way to go about it.
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