Slashdot Mirror


World's First Electrified Road For Charging Vehicles Opens In Sweden (theguardian.com)

A 1.2-mile stretch of road with electric rails has been installed in Stockholm, Sweden, allowing electric vehicles to charge up their batteries as they drive across it. "The technology behind the electrification of the road linking Stockholm Arlanda airport to a logistics site outside the capital city aims to solve the thorny problems of keeping electric vehicles charged, and the manufacture of their batteries affordable," reports The Guardian. From the report: Energy is transferred from two tracks of rail in the road via a movable arm attached to the bottom of a vehicle. The design is not dissimilar to that of a Scalextric track, although should the vehicle overtake, the arm is automatically disconnected. The electrified road is divided into 50m sections, with an individual section powered only when a vehicle is above it. When a vehicle stops, the current is disconnected. The system is able to calculate the vehicle's energy consumption, which enables electricity costs to be debited per vehicle and user. The "dynamic charging" -- as opposed to the use of roadside charging posts -- means the vehicle's batteries can be smaller, along with their manufacturing costs. A former diesel-fuelled truck owned by the logistics firm, PostNord, is the first to use the road.

66 of 102 comments (clear)

  1. Wow. by Anonymous Coward · · Score: 2, Funny

    I bet pedestrians are in for a "shock" ...

    1. Re:Wow. by Zumbs · · Score: 4, Informative
      From TFA:

      Säll said: “There is no electricity on the surface. There are two tracks, just like an outlet in the wall. Five or six centimetres down is where the electricity is. But if you flood the road with salt water then we have found that the electricity level at the surface is just one volt. You could walk on it barefoot.”

      --
      The truth may be out there, but lies are inside your head
    2. Re: Wow. by Type44Q · · Score: 2

      Presumably you could lie down on it naked, too... as long as it's really cold outside.

    3. Re:Wow. by KingBenny · · Score: 1

      it doesn't really say how they intend to bill , other than "can be debited per vehicle and user", so i put on my robe and fake black hat and ask myself , how long before people start getting bills on their id while they have never been there, because i'm sure its unhackable and despite it being a supreme initiative, the amount of backpatting on we're actually doing something here will probably keep the blind spots hidden ...

      --
      Free speech was meant to be free for all... how can anyone grow up in a nanny state ?
  2. 1.2 miles of road? by mark_reh · · Score: 3, Insightful

    Driving 1.2 miles might take 5 minutes, maximum. How much power can they possibly transfer to the vehicle battery in that time?

    1. Re:1.2 miles of road? by skids · · Score: 1

      Oh don't worry, gasoline producers already have a competing solution.

    2. Re:1.2 miles of road? by AHuxley · · Score: 1

      A pantograph https://en.wikipedia.org/wiki/... so whats the max that can be pushed back up into the vehicle?
      What can a really good battery take given the average speed and the length of the electric rail down the road?

      --
      Domestic spying is now "Benign Information Gathering"
    3. Re:1.2 miles of road? by VeryFluffyBunny · · Score: 3, Informative

      Actually, when you pull out from that close up shot, it looks like this: http://www.newmodellersshop.co... ;)

      --
      Debate is a form of harassment. Do not question my truth.
    4. Re:1.2 miles of road? by Jeremi · · Score: 5, Insightful

      Driving 1.2 miles might take 5 minutes, maximum. How much power can they possibly transfer to the vehicle battery in that time?

      Also, the very first fax machine was a completely useless product, since there was nobody to send faxes to or receive faxes from. I don't know why they even bothered to manufacture it.

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    5. Re:1.2 miles of road? by Darkling-MHCN · · Score: 2

      I'm guessing you skipped the bit in the article that says that it's a trial and they're planning to role it out across the country.

    6. Re:1.2 miles of road? by AvitarX · · Score: 1

      That seems unlikely even

      "When a vehicle stops, the current is disconnected."

      This leads me to believe it is a proof of concept, and not a charger. The idea is that cars would use the power instead of batteries, and not charge off of it. Eventually, long haul roads would be powered like this and batteries would only need to cover what ever the automobile equivalent of last mile is (last ten miles I guess ?).

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    7. Re:1.2 miles of road? by AmiMoJo · · Score: 2

      It's a test track. To be useful it would have to be deployed on over longer distances.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    8. Re:1.2 miles of road? by Anonymous Coward · · Score: 1

      Driving 1.2 miles might take 5 minutes, maximum. How much power can they possibly transfer to the vehicle battery in that time?

      Since we are going to nitpick like autistic retards, the source says it is 'about' 2 km.
      It could be anywhere between 0.9 and 1.6 miles.

    9. Re:1.2 miles of road? by Godwin+O'Hitler · · Score: 1

      "Opportunity charging" is nothing new but it's been mostly used for public transport (collectors at bus stops). How long does a bus stop at a bus stop?

      --
      No, your children are not the special ones. Nor are your pets.
    10. Re:1.2 miles of road? by sad_ · · Score: 1

      i think this is a great idea, but as you said, the distance is too short.
      but what if you would put those chargerroads in highly congested places?
      instead of 5 minutes, it would take 30, 40 or even more minutes to cross and that should be plenty of time to charge the batts to a reasonable level.

      --
      On a long enough timeline, the survival rate for everyone drops to zero.
    11. Re:1.2 miles of road? by Applehu+Akbar · · Score: 2

      Driving 1.2 miles might take 5 minutes, maximum. How much power can they possibly transfer to the vehicle battery in that time?

      Meanwhile, there are all kinds of places where cars are parked that would make much better charging sites. Spending millions of dollars a mile - okay, okay, Euros per kilometer - for a charging road is the ultimate in dead end projects.

    12. Re:1.2 miles of road? by tsqr · · Score: 1

      This leads me to believe it is a proof of concept, and not a charger. The idea is that cars would use the power instead of batteries, and not charge off of it.

      Really? TFA leads me to believe you might be incorrect:

      Headline: World's first electrified road for charging vehicles opens in SwedenWorld's first electrified road for charging vehicles opens in Sweden

      Sub-head: Stretch of road outside Stockholm transfers energy from two tracks of rail in the road, recharging the batteries of electric cars and trucks

      First sentence: The world’s first electrified road that recharges the batteries of cars and trucks driving on it has been opened in Sweden.

    13. Re:1.2 miles of road? by hazardPPP · · Score: 1

      How long does a bus stop at a bus stop?

      About 20 seconds on average?

      From what I've seen (could be wrong), the buses that recharge shortly at every stop (or every third or fourth stop) use supercapacitors that can be charged very quickly. The buses with batteries recharge for a longer time at fewer locations where the bus holds for several minutes, or more (e.g. places where the driver takes a break, or end-points of a line).

    14. Re:1.2 miles of road? by AvitarX · · Score: 1

      Fair enough.

      Why does it not charge stopped cars then?

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    15. Re:1.2 miles of road? by hawk · · Score: 1

      actually, the first faxes were at the telco center, not to user machines.

      Not very big, either (4"? I forget).

      And expensive per transmission.

      hawk

    16. Re:1.2 miles of road? by EdwardFurlong · · Score: 1

      Just a guess, maybe to keep people from stopping their vehicles to let them charge and blocking the lane.

    17. Re:1.2 miles of road? by tsqr · · Score: 2

      Fair enough.

      Why does it not charge stopped cars then?

      TFA didn't explain that design decision. Since I have to guess, I'm going to go with, "The number of cars the system would have to charge if traffic were bumper-to-bumper and stopped or barely moving (e.g., Los Angeles' I405 during rush hour) would exceed the power delivery of the system."

      Your original post mentioned covering the last mile. TFA covered something very similar -- the long-term plan is to electrify highways, but not local roads. I believe they said the average distance between highways is something like 25km, so the time spent on the highway should supply enough charge to cover that distance.

    18. Re:1.2 miles of road? by Socguy · · Score: 1

      How much charge can you get in 5 minutes? Depends on the charge rate your vehicle can accept and in what state of discharge you pack is in. At peak, 5 minutes at a Tesla supercharger can add about 40 miles of range to your vehicle. If this stretch of road is located on the up incline of a hill, then you also get to nearly double that through regeneration on the way down the other side. I don't know what kind of rate the trucks will be able to pull through this system but even half that would be fantastic.

  3. From below is easier ,,, by fahrbot-bot · · Score: 2

    Energy is transferred from two tracks of rail in the road via a movable arm attached to the bottom of a vehicle.

    ... than transferring the energy from above.

    --
    It must have been something you assimilated. . . .
    1. Re:From below is easier ,,, by Solandri · · Score: 2

      Below may be easier in ideal conditions. But in real-life conditions, above is easier because crud doesn't build up, and things traveling on the road don't hit the transfer mechanism.

    2. Re:From below is easier ,,, by vtcodger · · Score: 1

      "... crud doesn't build up"

      Quit being pragmatic. We're talking The Guardian here.

      Also, unlike overhead wires, this sounds like maintenance nightmare.

      --
      You can't see ANYTHING from a car, You've got to get out of the goddamned contraption and walk...Edward Abbey
  4. 1.2-"mile" by Anonymous Coward · · Score: 1

    Very exclusive and isolationist...

  5. Re:Made in America? LOL by Frosty+Piss · · Score: 1

    These days, about the only jaw-dropping tech coming out of the America

    This is not "jaw-dropping tech" except in its stupidity.

    --
    If you want news from today, you have to come back tomorrow.
  6. Re:save on cost of batteries by K.+S.+Kyosuke · · Score: 1

    The network effect in action. The more EVs you have, the more useful such roads will be.

    --
    Ezekiel 23:20
  7. That is Dumb by WindowsStar · · Score: 1

    Why would you put track that the vehicle has to connect to? It will wear out and you have to line it up and connect. Ever hear of wireless charging??? Duh. They could have done this in a much much better way. Make it wireless charging!

    1. Re:That is Dumb by technosaurus · · Score: 1

      That only works if it is taxpayer funded. Perform a seance and ask the ghost of Nikola Tesla why.

    2. Re:That is Dumb by hazardPPP · · Score: 1

      Duh. They could have done this in a much much better way. Make it wireless charging!

      Depends how you define "better". Wireless charging is usually much less efficient.

    3. Re:That is Dumb by eaglesrule · · Score: 1

      Depends how you define "better". Wireless charging is usually much less efficient.

      What is worse, somewhat more inefficient, or not working at all?

      What happens as soon as a bit of road debris is left to accumulate in the tracks, which causes the vehicle contact to become damaged and disfunctional? At least a large inductive coil buried under asphalt would be protected and not require moving parts.

    4. Re:That is Dumb by hazardPPP · · Score: 1

      What is worse, somewhat more inefficient, or not working at all?

      What happens as soon as a bit of road debris is left to accumulate in the tracks, which causes the vehicle contact to become damaged and disfunctional? At least a large inductive coil buried under asphalt would be protected and not require moving parts.

      Well, this is a test track, so we will see how it works. Personally, I'm skeptical. That doesn't mean that wireless charging is the answer, though.

      Despite all of the brou-ha-ha and countless research into wireless charging, most things that charge (and especially moving things like streetcars, trains, and trolleybuses) do so via physical contact. There are reasons why this is so.

    5. Re:That is Dumb by F.Ultra · · Score: 1

      They claim that it's self-cleaning and also that they have a special cleaning vehicle if there is more debris than the automatic system can handle. However time will tell, this is a 2 year project to see how well the technology works in real world scenarios (they have run an internal test track for 5 years already).

    6. Re:That is Dumb by eaglesrule · · Score: 1

      Doesn't mean that wireless charging isn't the best tradeoff between convenience and functionality and reliability, either. Sometimes even the most simple and direct solution turns out to be more complicated, as I'm sure this test track will soon demonstrate.

      Wireless brou-ha-ha... I hope you wrote that from a mobile device. :)

    7. Re:That is Dumb by eaglesrule · · Score: 1

      So even more moving parts, which can be affected by freezing conditions and electrolysis.

      This is turning out to be a really amazing system.

    8. Re:That is Dumb by F.Ultra · · Score: 1

      I don't think that this is really something that the designers have missed since it's built in a country with snow and rain in the majority of the seasons. And their first test track have withstood 5 winters so far.

  8. 1.2 miles down a Califorinan Freeway by aberglas · · Score: 2

    Could take an hour or more...

  9. Streetcar tech by Tavor · · Score: 1

    This is actually really REALLY old technology. Streetcars used this at the dawn of American cities, and I'm somewhat curious if having a dual-use (Streetcar and electric automobile) network could propel a faster switch from IC engines and towards better public transit in one fell swoop. While the idea of trolleys and streetcars using overhead wiring is more common, plenty of US cities used in-road electric rails (most notably Washington DC see links) http://www.rypn.org/forums/vie... https://www.dcpreservation.org...

    --
    Windows has detected an undetectable error.
  10. Re:Made in America? LOL by hyades1 · · Score: 1

    You obviously don't know what "jaw-dropping" means. I'll explain: It means off-the-wall. Mind boggling. Crazy. Something jaw-dropping might be world changing, or it might be headed at Mach 3 for the scrap pile of failed ideas.

    The point, which you missed, is that there was a time when anything like that probably originated in the United States. If it failed, the next potentially world changing idea would be coming along in prototype form a week later. The US used to be a hotbed of innovation and new takes on old ideas. Americans dared. Failure on one front just meant it was time to push harder on another.

    Now most of what I see coming out of the US is metathesiophobic drivel from a bunch of hidebound, frightened old men who don't give a crap about anything but the bottom line of corporations that are screwing them without mercy.

    --
    I've calculated my velocity with such exquisite precision that I have no idea where I am.
  11. One of two in Sweden by iktos · · Score: 4, Informative

    The first one was built a bit further north and uses a dual overhead catenary and has a counterpart in a warmer climate in USA.
    Both built to test how the technologies will work in practical conditions.
    https://www.trafikverket.se/en...

    1. Re:One of two in Sweden by SandorZoo · · Score: 2

      Siemens have built a pilot of the overhead catenary in Carson, California. They're building another just south of Frankfurt in Germany.

      From the picture it looks like the overhead version will only work with trucks, but the rails embedded in tarmac version will work most vehicles.

  12. Re:Made in America? LOL by whoever57 · · Score: 1

    People need to stop voting for those candidates who are supported by people with a strong financial interest in existing technology, such as the Koch Brothers.

    --
    The real "Libtards" are the Libertarians!
  13. Re:Jay Walkers by blindseer · · Score: 2

    Does this mean that jay walkers will be electrocuted?

    Yes. Of course.

    --
    I am armed because I am free. I am free because I am armed.
  14. Re:Jay Walkers by dohzer · · Score: 1

    Jay-walkers? Are they not allowed to cross that section of road?

  15. Re:Made in America? LOL by Peter+P+Peters · · Score: 1

    The point, which you missed, is that there was a time when anything like that probably originated in the United States. If it failed, the next potentially world changing idea would be coming along in prototype form a week later. The US used to be a hotbed of innovation and new takes on old ideas. Americans dared.

    You mean immigrants to America. America was a hotbed of innovation not because of anything other than America was a relatively safe place for smart people to migrate to in turbulent times. Those days are mostly over but ironically the common man believes that the path back to greatness is by persecuting immigrants.

  16. Old technology is new again by technosaurus · · Score: 1

    Electric cars and Trams (or cars operating like them), Nickel-Iron Batteries, wooden high-rises, hyperloop (New York City still has remnants of the pneumatic tube network), natural plastics. Blacksmithing is even seeing a resurgence... What's next? Wood gasifiers, Lye soap, Roman concrete, shipping by sail, cars with sails, horse and buggy, derigibles, the rest of Nikola Tesla's patent portfolio? What about medicine, modern medicine allowed us to forget treatments that may have worked OK - for example the discovery of antibiotics virtually stopped all research into other treatments that may be valid now that we have created so many antibiotic resistant strains. What else should we bring back?

  17. Re: save on cost of batteries by technosaurus · · Score: 1

    Part of the reason Nikola Tesla's Wardencliffe Tower research was shut down... funding was cut because the financiers couldn't charge for electricity transmitted wirelessly. FWIW, High voltage lines actually have enough voltage that a drone can fly close enough to charge wirelessly.

  18. And now we just need by Anonymous Coward · · Score: 2, Insightful

    Solar freaking roadways to make this system into a truley worthless money pit.

  19. Re:Made in America? LOL by technosaurus · · Score: 1

    America pioneered this about a century ago and abandoned it several decades ago ... Technically the automobile and oil industries bought them out (the electric tram companies) and killed them and replaced them with stinky, polluting buses - it was a real threat to their bottom line that could potentially grow to other cities and make public transportation appealing to the masses.

  20. Re:Made in America? LOL by AvitarX · · Score: 1

    Stupid question, but how is it that gasoline makes busses not appealing to the masses?

    Does electric power somehow keep the junkies from shooting up in the back?

    --
    Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
  21. Electric car ? by Kopp · · Score: 1

    Why are they using an old Peugeot 406 ?

  22. Re: save on cost of batteries by K.+S.+Kyosuke · · Score: 1

    "Tiny batteries" could easily mean, say, 100 km in Sweden. The minimum acceptable range is dependent on the maximum distance between two electrified stretches of the road network. And again, adoption of this is likely to follow a sigmoid curve.

    --
    Ezekiel 23:20
  23. Great idea by Ecuador · · Score: 1

    Now when that truck has miscalculated and is almost out of juice, it will go at 2 kmh on that stretch of road to get some meaningful charge...

    --
    Violence is the last refuge of the incompetent. Polar Scope Align for iOS
  24. Re: save on cost of batteries by dreamchaser · · Score: 1

    You didn't even read the summary, let alone the article. Individual drivers will be billed by the system. No freeloaders.

  25. This is a great idea, but I can improve upon it! by EmagGeek · · Score: 1

    This is a great first step, but let's make this at least mostly autonomous. Already autonomous cars are coming, but with the carnage they seem to be leaving on the roadways, what if we could come up with a way to make them more or less idiot-proof?

    This electrifying track is a great first step in making electric cars feasible, but what if we added a couple more of them that could interface with the wheels of the car to keep it moving in exactly the right direction? If there is no ambiguity or variance in the direction of travel, the problem becomes one dimensional and then automating becomes much easier since you only have to worry about the distance to cars in front or behind you.

    Even more, we could really pile on the efficiency if we created some kind of way to couple cars together on the road, so first they don't even have to worry about distance because they're linked together, and second they get the benefit of drafting to increase fuel economy.

    We could even build these "track roads" between major urban centers and even have "commuter" versions of them for more local travel.

    Man, this is getting almost too big to wrap my head around - it seems almost too good to be true because not only is it feasible but I think it really would be much safer and more efficient!

    I need to sit down...

  26. So ... by cascadingstylesheet · · Score: 1

    ... everyone would drive little individual trolleys? :)

  27. Re:Made in America? LOL by stdarg · · Score: 1

    You must be trolling, or confusing government innovation with innovation in general. There is obviously innovation in the American private sector, even if we restrict our view to transportation. Tesla, SpaceX, Hyperloop, Uber/Lyft, self-driving cars in general.

    This is a cool idea. I disagree with those saying this is pointless... the point is they are sharing the energy supply burden rather than making each car keep its own energy supply via batteries. This means an all-electric car doesn't need a 200+ mile range, maybe it needs 50 miles, which would reduce costs quite a bit.

    But you're still crazy if you think there's no innovation in America.

  28. Re:Made in America? LOL by 110010001000 · · Score: 1

    He means that this is a "jaw-droppingly stupid" idea. This isn't a "dare", it is a stupid idea that shouldn't have made it past the napkin stage.

  29. Re:Made in America? LOL by vtcodger · · Score: 1

    I'm old enough to recall electric street trolleys. All the trolleys I saw used overhead wires. Sometimes the wires were (are?) used with the buses that replaced the trolleys. Subways, of course, did, and do, use electrified "third rails"

    --
    You can't see ANYTHING from a car, You've got to get out of the goddamned contraption and walk...Edward Abbey
  30. Re: Made in America? LOL by JackieBrown · · Score: 1

    Some cultures actually have a desire to lower air and noise pollution, or to reduce foreign dependence.

    By constantly running power throughout the road at all times? Guess I may as well leave the lights on in my house when no one is home.

  31. Re:save on cost of batteries by JackieBrown · · Score: 1

    Does traffic patterns never change over there? In San Antonio lanes are often rebuilt as population changes.

    Does the section break if there is road damage? And how big is that section?

  32. Re: save on cost of batteries by JackieBrown · · Score: 1

    How? Like a toll road?

  33. Re:I'm only happy when it rains. by F.Ultra · · Score: 1

    You do realize that this is built in a country where it snows a lot and that their first road have survived 5 snowy winters with out any problems?

  34. Re: Made in America? LOL by SamTombs · · Score: 1

    From the Fine Summary:

    "The electrified road is divided into 50m sections, with an individual section powered only when a vehicle is above it. When a vehicle stops, the current is disconnected."