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Tesla Roadster Breaks Distance Record For Electric Car

An anonymous reader writes "The CEO of an Australian ISP has driven his Tesla Roadster into the record books, completing 501km on a single electric charge in the 2009 Global Green Challenge — beating the Roadster's official specifications, which rate the all-electric sports car as being capable of a maximum of 390km per charge. The previous record was held by another Roadster in the 387km Rallye Monte Carlo d'Energies Alternatives in April this year. In a race specifically designed for alternative energy vehicles (such as hydrogen and electricity), the Roadster was the only vehicle to complete the entire course. Though to be fair, that race course was a mixture of twists, turns and hills."

26 of 392 comments (clear)

  1. To be fair? by Anonymous Coward · · Score: 5, Funny

    To be fair, these cars were expected to turn, and go up and down hills. Something no mere mortal car would dare perform...

    1. Re:To be fair? by eldavojohn · · Score: 3, Informative

      To be fair, these cars were expected to turn, and go up and down hills. Something no mere mortal car would dare perform...

      I think what they mean was that it requires less electricity to remain straight on a flat plane going at a fixed speed. When you slow down to complete an S-curve or start going up a hill, your fuel consumption is drastically affected. The driver of the Tesla Roadster kept the speed as close to 55 kmph as he could to achieve the best efficiency event though that's a modest pace and not really a racing speed. This wasn't a course making long straight lines through the salt flats and that's probably important to note. I don't think "race" is a good description for the course. It's more like a realistic challenge with completion time hardly a factor.

      --
      My work here is dung.
    2. Re:To be fair? by Wonko+the+Sane · · Score: 3, Informative

      The laws of thermodynamics state that regenerative breaking can only capture *some* of the energy lost in slowing down. One will never get as much range in city driving than in highway driving. Mainly because in this house, Lisa, we obey the laws of thermodynamics.

      You will get more range in the city than highway, unless you drive as slow on the highway as you do in the city.

      The reason that city driving in a hybrid or electric vehicle can be more efficient than highway is because the inefficiency of the regeneration is overpowered by the reduced wind resistance.

    3. Re:To be fair? by Rising+Ape · · Score: 3, Interesting

      No, heat engines are limited by the Carnot efficiency, which depends on the temperatures of the hot source and the cold sink. This is because entropy changes are associated with heat transfers, and entropy of a closed system can't decrease.

      Hmm, if you could get the energy out of the fuel without burning it, you may even be able to get over 100% efficiency. The entropy of the products is higher than the entropy of the reactants at the same temperature. So it would be thermodynamically valid to extract a certain amount of heat from the surroundings at the same time and convert it to work.

  2. That's nice... by Blazarov · · Score: 3, Informative

    What the summary fails to mention is also that the average speed was at about 55 km/h, which is pretty decent...

    --
    Regards, Boyan
    1. Re:That's nice... by Mikkeles · · Score: 4, Funny

      ... and downhill, both directions ;^)

      --
      Great minds think alike; fools seldom differ.
    2. Re:That's nice... by pnewhook · · Score: 5, Insightful

      and that when I'm out of power I can stop and have full power again (either through rapid charging or a battery swap) within 15 minutes or less

      Personally, I'm looking forward to the time when I go to my electric car after work that has been parked in the parking lot all day, and the battery is fully charged for free from the solar panels. THAT is what the oil companies are really afraid of.

      --
      Tesla was a genius. Edison however was a overrated hack who liked to torture puppies.
  3. Now THAT is an electric car. by Locke2005 · · Score: 4, Insightful

    501km = 311 miles, about the range most gasoline vehicles get on a tank of gas. If it was affordable, this would definitely make a viable replacement for a petroleum fueled vehicle. Now, if we could just do something about the cost of the batteries so that average people could buy one...

    --
    I've abandoned my search for truth; now I'm just looking for some useful delusions.
    1. Re:Now THAT is an electric car. by cduffy · · Score: 4, Insightful

      Not everyone does long-distance highway travel more than once or twice a year -- I don't, anyhow, and when I do, I rent a car rather than putting the miles on mine anyhow.

      Range may legitimately keep electric cars out of some markets, but certainly not all of them.

    2. Re:Now THAT is an electric car. by Wonko+the+Sane · · Score: 4, Insightful

      I rent a car rather than putting the miles on mine anyhow.

      That makes a lot more sense than trying to make an electric car into something that it can't be.

      Until we get that 20 times improvement in battery technology it makes more sense to optimise electric vehicles for commuting, not long distance.

    3. Re:Now THAT is an electric car. by hitmark · · Score: 4, Interesting

      one option would be to put induction cables into the road, so that the car can be charged while driving.

      hell, add a data channel so that the car knows what road its on, and what direction, and it could practically drive itself with the right navigation system installed.

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    4. Re:Now THAT is an electric car. by vlm · · Score: 3, Interesting

      one option would be to put induction cables into the road, so that the car can be charged while driving.

      I think you'd find the effect on steel car chassis to be very "exciting" (sorry for electric motor field winding pun this early in the morning). That would apply to any "mostly iron" chassis, no matter if IC or electric powered, or even semi and RV trailers...

      Seriously though, although turning the road into a giant linear induction motor sounds very amusing under normal circumstances, it would be a bit wasteful in stop and go conditions and very dangerous in low traction situations.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    5. Re:Now THAT is an electric car. by daid303 · · Score: 5, Funny

      How about putting the cars on tracks, and run the electricity trough that. Also make the cars larger, and let multiple people ride the same one.

    6. Re:Now THAT is an electric car. by pnewhook · · Score: 4, Informative

      I don't know about you but when I travel long distances on the highway I expect a 500 km trip to take about 4.5 hours, not 9 hours.

      Where did speed come into this? The Tesla has a max speed of 200km/h - more than enough for any sane road trip.

      --
      Tesla was a genius. Edison however was a overrated hack who liked to torture puppies.
  4. Re:Tesla Motors ftw? by prodevel · · Score: 3, Informative

    Well, the $109,000 car costs Colorado residents a mere $65,000 with their substantial tax break for hybrid and electric vehicles. That's downright affordable! Makes me wonder how much the rebate is for a Prius, both there and in my home state...

  5. Re:So what? by Duhfus · · Score: 3, Insightful

    Though to be fair, that race course was a mixture of twists, turns and hills
    So what? You say that like they SHOULDN'T be required to handle it. Who wants a car that can't handle turns or climb hills?

    TFS is comparing the performance of Roadsters in different races. While this Roadster set a new record, the course that it set the record is sufficiently different from the course where the previous record was set. Hence the "to be fair" comment: the earlier course "was a mixture of twists, turns and hills", so you can't really compare the two records as an apple-to-apple comparison.

  6. Re:Electric cars are not better for the enviornmen by vadim_t · · Score: 5, Informative

    Yes they are. Even the most inefficient plants are still vastly more efficient than a car's engine, with transmission losses accounted for.

    Finally, how good are the batteries for the enviornment? Can they be recycled cleanly? And how often do they need to be replaced? After a few months of steady use?

    Batteries are very recyclable, and are designed to last the life of the car.

  7. Re:Electric cars are not better for the enviornmen by Anonymous Coward · · Score: 4, Insightful

    Even if there was 0% coming from clean power, the efficiency rate of electric cars is such that fewer emissions are put out per mile from a coal power plant fueled electric car than a gas burning regular car. The sad fact is that gasoline combustion engines are not very efficient with their fuel, whereas electric are much more so.

    Also, do you just think that suddenly in 1 year everyone will just be driving electrics with no chance for the grid to adapt? It is these "lets take todays infrastructure and apply some hypothetical load to it" guesses that just drive me nuts. As people switch to electric, obviously the grid will be expanded to handle the new load.

  8. Re:What happens if a battery catches fire? by ratbag · · Score: 4, Insightful

    How does the energy of hundreds of laptop batteries compare with the energy of 60 litres of petrol?

  9. Re:That bad, eh? by Tim4444 · · Score: 5, Insightful
    Does every car have to be general purpose? People don't complain that the Mini Cooper can't hold a family of 6 or haul their 5th wheel. They know it has a purpose and a niche and get over it. Anyone who can afford a Tesla probably has multiple vehicles as does the average middle class family. Now, brace yourself. It's possible to own an electric car and a gas car. wow. Don't give me this soviet russia 'one car for everyone and every purpose' bs. I want choices. A lot of families own at least one car that they never drive more than 300 miles in a single day. Some people will choose a car that never needs to go to the gas station, never needs oil changes, and works great for all their local commuting.

    I had assumed that with all the talk of new technology

    Next time try reading up on it instead. Some people assumed with all the talk of new technology that by the year 2000 we'd all be driving flying cars and we'd have colonies on the moon...

  10. Re:That bad, eh? by hattig · · Score: 3, Interesting

    This is why I think Tesla should market to Europe more - smaller countries, smaller distances driven, and far more green-friendly governments and policies.

    Also you would hope that the GPS would be linked to capacity and tell you if you can make it, and where recharge stations are en-route.

    However I'm a fan of having an on-board small-capacity traditional engine that is used solely as a generator rather than being tied into the complexities of the car propulsion system. If that would generate enough charge to let me limp those ten miles it might be okay.

    And in ten years, when the technology is affordable, hopefully the technology will have matured to a point where none of this is an issue. Even to the point of solar roofing options for trickle charging during the day (and simultaneously keeping the car cool inside). Not that this option would help me in Britain...

  11. Re:390km per charge? by RivenAleem · · Score: 3, Funny

    sack of sugar

  12. Re:That bad, eh? by Red+Flayer · · Score: 3, Insightful

    Now, brace yourself. It's possible to own an electric car and a gas car. wow. Don't give me this soviet russia 'one car for everyone and every purpose' bs. I want choices. A lot of families own at least one car that they never drive more than 300 miles in a single day. Some people will choose a car that never needs to go to the gas station, never needs oil changes, and works great for all their local commuting.

    Why not just rent a specialized vehicle when you need one?

    Hauling stuff to the dump / stuff from Home Depot / stuff from a big box store? Rent a van for $20.
    Traveling a few states to visit family? Taking a long road trip? Rent an appropriate car.

    The little extra utility most people get on rare occasion from having a Canyonero (or even a smaller SUV/minivan) is ridiculous... far better fiscally to drive a commuter car and rent a special purpose car when one is needed. Especially once you factor in wear-and-tear from those "special need" trips.

    --
    "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
  13. Re:That bad, eh? by shway · · Score: 5, Interesting

    I have just passed the 15,000 mile mark in my 5 month old Tesla Roadster. My commute in it is almost 100 miles a day. People who claim that the Roadster is not a viable car due to range concerns have never tried to use one. I drive more than anyone else I know, and will likely put 35,000 miles on it this year. The Roadster is a blast to drive, and is definitely up to the task. The convenience of always having a full tank when I get in it in the morning is far better than doing the same commute in my previous car where each day I had to check to see if I had to stop by a gas station. It is true that I cannot easily take it for cross country roadtrips - but any 2 seater roadster doesn't lend itself for long family vacations. I have a second car for that. Just like I plan to take an alternate vehicle to Hawaii, I am content to take another vehicle on the occasional long trip. "Oh noes! Why would anyone buy that Toyota - you can't drive it across the Pacific!"

  14. Re:Forget About Batteries in Cars by amoeba1911 · · Score: 4, Insightful

    Good luck putting 53kWh of energy into a battery in "a matter of minutes".

    Technically, Lithium batteries can be charged to 80% capacity in only a half hour. The main reason for the Roadster's slow charging is that household plugs can't output more than 1800 Watts for a standard socket, at that rate it would take 30 hours to charge the Roadster.

    If you wanted to charge it within 1 hour, you would need a 53000W power source, that's about 240Amps@220Volt, 480Amps@110Volts. Considering that the main circuit breaker to my house is rated 200Amps, I could never charge the Tesla at my house in 1 hour, even if it had super capacitors or whatever else you wanted.

    If you want to charge it in "a matter of minutes", say 10 minutes, you would need a 318000Watt power source. If you wanted to charge your car in 3 minutes, you would need a megawatt power supply... for that you'd need a dedicated power station to supply this kind of power otherwise the whole city would have a brownout every time some prick decides to recharge his Tesla. I don't know about where you live, but there aren't dedicated electric stations that can supply a megawatt of power anywhere near my house.

    So: batteries? supercapacitors? ultracapacitors? it doesn't matter the least bit if you don't have the power infrastructure to charge it.

  15. Wow for a geek site most seem anti technology by Anonymous Coward · · Score: 5, Insightful

    Does a car have to be nuclear to get people excited around here? I'm not even hearing any new arguments. Until it can be instantly recharged and cost less than an average car few people are interested and most are outright hostile? If any one is interested check out "Who Killed The Electric Car". Every person that got their hands on one loved it and they did no more than 50 miles per charge, the Tesla can do around 240 with normal driving. The real joke is what they seemed to like most WAS the convenience. They loved the fact you didn't have to stop by a gas station just plug it in when you got home.

    "Gee they are only for the rich." Well I've got a shocker for you when calculators first came out they were large and cost around $400, more like a $1000 in adjusted dollars. Also all they did was basic math. Within ten years they were under $10 and you could soon after that find them built into pens. You won't find that radical a change with batteries but they will come down. I'm more concerned with the weight since that is hurting performance. The battery weight is all that is keeping a Tesla from blowing away a $200,000 sports car. Basically they have the potential to blow away a car twice the price and can already do it in the straightway. Just imagine the weight cut in half and the mileage doubled?

    "But once a year we drive to Grandma's house". Man am I tired of that argument. How many drivers drive more than 200 miles a day? Damn few. Here's a shocker, how many people that could aford an electric car are single car families? Near zero. Point being if the thought of not being able to take a long drive makes you hyperventilate then make one car gasoline or hybrid.

    Christ I've even seen blind people complain because of the LACK of noise. They do make sound just not as obnoxious as cars and trucks do. Picture this, once the prices start to match regular cars you can fill up for a $1 to $3. And it's a myth that we'll each have to have our own nuclear plant. The average house could charge one daily just by switching their existing bulbs to compact florescents. Once LEDs get as cheap the savings would be enough to charge two cars. We won't have to build a single coal plant and if you just took the gas savings and put solar panels on the roof then there would be no increase you'd actually drive for free once the panels were paid off.

    Last century saw the end of horse drawn carriages let's make this the century we get rid of gas guzzlers. They are starting to look as primitive as carriages.