Dragon Power Station makes electricity from traffic
Filed under: Emerging Technologies, USA

There seems no end to the different ways one can generate pollution-free electricity but we try to cover them all. From the not-so-ready-for-prime-time free-energy devices and solar paint to the most current statements in piezing dresses. (Get it? Current? Electricity? Dresses? Ok, nevermind.) We've even looked at the possibilities of roads before but this time we're not talking solar or wind, we're talking kinetics.
Terry Kenney had a dream one night about a device in the road that would harvest the energy from the vehicles driving over it. It took eight years of work and perseverance to bring it to the light of day but using parts sourced from all over the world and a cooperative customer in the form of Port of Oakland terminal operator, SSA, his clean electricity-making "Dragon Power Station" is fait accompli. According to an article at New American Media, as trucks pass over plates embedded in the asphalt "they compress a tank of hydraulic fluid under the road, which in turn creates a series of pumping actions that turns a generator to produce electricity." By next month Kenney expects it to produce 5,000 to 7,000 kilowatt-hours every day. That's enough to power 1,750 homes! The story is not going to end there either. The "Dragon" is being installed in some other prime locations and Kenney has deals-a-plenty on the horizon. Click on "Read" for the entire heartwarming story.
[Source: New American Media]











Reader Comments (Page 1 of 2)
4-29-2008 @ 9:13PM
way2trivial said...
tanstaffl
Pfft.. it only works because he's reducing the efficiency of the vehicles driving over the plates.
it may provide electricity- but it does so at reduced fuel efficiency for all the trucks that drive on the plates.
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4-29-2008 @ 9:22PM
vw junky said...
you could put it on a down hill possible at the very bottom before going up? Could help slow vehicles a bit while capturing energy?
Pretty cool ideal, hope he makes a billion or so.
later,
E
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4-29-2008 @ 10:00PM
Mort said...
I agree, put 'em on the downhill side of the street.
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4-29-2008 @ 10:32PM
why not the LS2LS7? said...
It'd still be stealing energy from cars that have regenerative braking. How about they just don't employ energy-stealing devices?
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4-29-2008 @ 11:12PM
Mort said...
I'd say that you're just being a troll. Not one car in a million has regen. braking.
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4-30-2008 @ 12:00AM
why not the LS2LS7? said...
Have you never heard of the Prius? Here in Northern California it seems like one in twenty cars is a Prius.
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4-30-2008 @ 12:35AM
Mark said...
I wonder how much energy is created by the movement of one car...
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4-30-2008 @ 12:55AM
dhofmann said...
They could equip hybrids with RFIDs that temporarily disable the device as they pass over.
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4-30-2008 @ 12:56AM
jake said...
@why not the LS2LS7?
I agree, but it will still be useful in most places where cars don't have regen braking (or they have it and don't bother to use it) in the first place. Just depends where you decide to put the plates. If you put them at a place where cars have to slow down anyway, it shouldn't hurt since the cars would waste all the energy by using their brakes otherwise.
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4-30-2008 @ 1:57AM
why not the LS2LS7? said...
It's my energy. I paid for the gas to get up to speed. If I want to be wise and buy a car that helps me recover the energy, that's great, cause it's mine.
As to not using the regenerative braking, you don't have a choice in a Prius or any other hybrid. If you hit the brakes, it puts on the regen brakes, unless you hit the brakes too hard or once you get below like 10mph regen braking doesn't really work.
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4-30-2008 @ 2:21AM
Chris M said...
I suspect that, unless there is really heavy traffic, it won't produce as much energy as planned. There are also interruptions in traffic and lengthy intervals with no traffic, which means other power sources are needed as backup.
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4-30-2008 @ 5:07AM
David Wright said...
I am all for it and was advocating this form of 'Tidal Power' years ago when I lived in Birmingham, UK. That city is a hundred miles from the sea, but tens of thousands of vehicles head into the city on a dozen radial routes every moning, and out again every evening. Milking that tide is well worth considering - and the same in every other city (except the dead flat ones).
Clearly it has to be done in positions where - as mentioned here already - there is no ADDITIONAL energy input required from the vehicle. Such as on downward hills (reducing the amount of braking needed), and on approaches to junctions where traffic already has to halt or slow down.
Also there are many urban and suburban streets where the 'traffic-calming' measures include anti-speed bumps across the highway. These at present have the bad effect of requiring additional motive force to overcome them - and should therefore perhaps be discouraged. But if the wretched things are going to exist at all, and are going to require extra energy in driving up over them, why not at least make the bumps from something which recoups some of that energy?
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4-30-2008 @ 5:26AM
BlackbirdHighway said...
Maybe he could install the thing at airports and use it to slow planes down when they land.
No, forget that, if it ever accidently activated on a plane during takeoff...
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4-30-2008 @ 6:00AM
vw junky said...
I also like the speed bump idea. You would not even have to put it in the ground. We have several at work in the parking lot to keep speeds down for crazy employees trying to get out of work too fast. Lots of ideas for this invention. Good luck, hopefully it won't be a lost idea.
later
E
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4-30-2008 @ 8:02AM
Graylion said...
if it is on a downhill stretch I can see it working, otherwise it is energy theft (law of the conservation of energy anybody?). As I don't see anything in that article to indicate that it is on a downhill stretch the man is actually increasing pollution and using a highly inefficient method (the internal combustion engine through an inefficient transfer mechanism) for creating his energy.
Same thing for the Brum idea: it would add to the pollution.
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4-30-2008 @ 9:06AM
David Wright said...
"..Same thing for the Brum idea: it would add to the pollution.."
How so? I already riuled out situations in which additional energy input would be required, and was suggesting only doing it in positions where braking is currently essential - ie where energy is at present being wastefully dissipated.
I totally agree with the rest of your post.
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4-30-2008 @ 9:53AM
Mort said...
They should outlaw speed bumps too, nobody shall rob LS2LS7 of his / her / its inertia. :\
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4-30-2008 @ 10:46AM
Tush said...
Energy theft?
Think about it. When you are driving over the road, where do you think the vibrations go? Into the ground. So instead of letting the energy just dump into the ground, we can harness some of it.
Obviously it's not the greatest source of energy because we're just recovering lost energy in transportation, but it's a great start.
If it's relatively cheap to make and maintain, seems like a good idea to me.
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4-30-2008 @ 11:21AM
Bucky said...
"it may provide electricity- but it does so at reduced fuel efficiency for all the trucks that drive on the plates." At 15mph, these trucks are getting a whopping 2-3 mpg. So, they go down to 2 - 2.9 mpg?
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4-30-2008 @ 12:50PM
XeroK00L said...
I agree with Tush. There's no energy theft here. All this is is recovering energy that is currently being wasted in the inevitable vertical movement as vehicles travel along.
This is a great idea. Any little bit of technology helps!
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