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32 Comments
- Mantus, on 10/12/2007, -0/+2pic - http://news.yahoo.com/photo/051216/photos_lf/2005_12_16t083309_450x342_us_energy_water_power
- sdcdiggs, on 10/12/2007, -0/+2"wow its a great thing there is only like 3% fresh river water on the planet this will be a great way to waste more water good job ducheland"
Wow, your a moron. They stick these things in esturaries, so if you want to blame someone for messing up the fresh water, blame it on the river for going into the ocean. - notkevinrose, on 10/12/2007, -0/+1maybe i'm being negative but i though what jules verne meant by water being the coal of the future is that water will a prized commodity due to its rarity?
- cyberdork, on 10/12/2007, -0/+1Ah, i misread. The Rhine can replace 5 coal powerplant, not too bad.
- cyberdork, on 10/12/2007, -0/+1Wind farms have the problem of not producing constant power, and as you know the amount of power produced and consumed always has to be the exact same on the electricity network. So even if you built huge windfarms we always need conventional powerplants to take over in case of weak wind. Same for solar power. However this new technology provides constant power generation.
Unfortunately it doesn't seem to be very efficient, the biggest river in central europe can only replace one coal power plant. - brickbat, on 10/12/2007, -0/+1I read a study recently that said that if every house in Australia had a solar heating system on its roof, the power stations would only be needed for storage of power rather than production. OK - I know that not every country is as sunny as Australia but thats no excuse for them not doing it. Also, it said it would reduce the greenhouse effect in 2 ways - 1. Reduction in fossil fuel usage and 2. heat would be absorbed by the solar cells instead of bouncing around in the atmosphere.
- aywwts4, on 10/12/2007, -0/+1"Norwegian project manager Rolf Jarle Aaberg believes power-from-water will be ready to seriously challenge other renewable energy technologies between 2010 and 2015."
So its "Close" to being able to chalenge renewable energy techs that still arent really able to compete with non-renewable energy, sounds great. - Wizzkid, on 10/12/2007, -0/+0That is Cool... Whats the Oil and Coal industry gunna say :P
- spradling, on 10/12/2007, -0/+0this is awesome, I'd love to know how it would work in my country (Uruguay), we have the widest river in the world.
- sjors, on 10/12/2007, -1/+1quote:Who cares about the cole and oil industry, we need more clean energy.
No the problem is that we use to much energy, look at those stupid yanks with their big stupid cars. No wonder that you have to take over a oil nation every year. - Mantus, on 10/12/2007, -0/+0yahoo news - http://news.yahoo.com/s/nm/20051216/lf_nm/energy_water_power_dc_1
- carpespasm, on 10/12/2007, -0/+0it's true that only 3% of earth's water is fresh water, but 60% of the fresh water is in glaciers and the ice caps. also, even one measely percent on a scale as big as the WHOLE planet is still pretty darn large.
- inactive, on 10/12/2007, -0/+0Who cares about the cole and oil industry, we need more clean energy
- neenor, on 10/12/2007, -0/+0What would this thing look like on a river?
Is this membrane supposed to be spread across the mouth of the river or are they talking about diverting the fresh water into a pool with seawater!!! I dint see what this thing would look like.
Can anyone enlighten me?
Thank you. - Otto, on 10/12/2007, -0/+0Seems like a neat idea, but probably infeasible. Basically you'd be able to generate power near where rivers meet the ocean. How much power is up for debate, however.
- Ibeatchumps, on 10/12/2007, -0/+0"wow its a great thing there is only like 3% fresh river water on the planet this will be a great way to waste more water good job ducheland"
i dont get this... like 3% of what? - msgmsg, on 10/12/2007, -0/+0Ossaracd, a solar or a wind farm needs too much space and you get very little power out of it. This is basically the same only you are using space that nothing else can be built on. Haha @ calling us nerds... this is the internet what do you expect
- doant, on 10/12/2007, -0/+0my parents lived in Leeuwarden and studied there and my ex lived there. I am totally proud that we dutchies done something like this. oke not me but these totally smart people in the university did it not me. but still I am proud
- cyberdork, on 10/12/2007, -0/+0"... the power stations would only be needed for storage of power rather than production."
It's not very easy to store power. One technique which is sometimes used is to pump water up into a strorage lake, and when the engery is needed valves are opened and generators are activated.
There are no such things as gigantic Li-Ion batteries to store huge amounts of energy. - StiffEyed, on 10/12/2007, -0/+0That link isn't working anymore. Anybody have an alternate link to the story?
- neenor, on 10/12/2007, -0/+0+ Whats this called? Water mixing technology!
- JimXugle, on 10/12/2007, -0/+0I, for one, welcome our River-owning energy overlords.
- kwoff, on 10/12/2007, -0/+0"The two inventions, however, have still a long way to go before they can be applied commercially...."
Like fusion power. For the last couple decades.
"Power produced by mixing sea with river water is several times more expensive than wind or solar energy."
Sigh... - angloafro, on 10/12/2007, -1/+1Ok, can anyone tell me why the f*ck they wouldn't just use the flowing river water to turn the turbine, instead of a membrane that absorbs freshwater and increases pressure in an enclosed device which relies on the existence of saltwater to turn a turbine?????? WTF!!! talk about horrible efficiency percentages! Just put a freakin turbines all along the river, make sure they're habitat friendly, and you're done. Christ! and they call themselves scientists!
- mikexstudios, on 10/12/2007, -0/+0infra and angloafro both have good points. But in addition, even if the energy harvested from mixing sea and river water is significant, by no means is such a process widespread enough to solve the "energy problem". Currently, the world uses upwards of 13 Terawatts each day (total energy including fuels and electrical energy). The combined hydroelectric power generated by the whole world is about 1TW. I don't see this method, even ideally, breaking 1TW.
- StiffEyed, on 10/12/2007, -0/+0That link isn't working anymore. Anybody have an alternate link to the story?
- h2d2, on 10/12/2007, -0/+0They had something similar to this on the recent SciFi Channel mini-series "The Triangle". When looking in to the anamoly of Bermuda triangle, they saw fresh water bubbling out of the Atlantic and mixing with sea water which they partly blamed for the high electric charges in the area.
- infra172, on 10/12/2007, -2/+11) Global warming is caused by the sun and not human beings
2) Gas prices are not high
3) This is lame
4) Its expensive
5) It doesn't provide much power
Only 5 major flaws with this. Bravo. I think you hippies are gettin better. - EmileVictor, on 10/12/2007, -2/+0That's really wierd!
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http://www.mediahug.com/ - ossaracd, on 10/12/2007, -3/+0NERDS! This thing is too expensive. Go with wind and solar.
Nothing can stop the Masked Al Gore! Bwahaha!!!!
http://www.AlGoreLabs.com
http://www.AlGoreLabs.com - infra172, on 10/12/2007, -3/+01) Global warming is caused by the sun and not human beings
2) Gas prices are not high
3) This is lame
4) Its expensive
5) It doesn't provide much power
Only 5 major flaws with this. Bravo. I think you hippies are getting better. - sabster, on 10/12/2007, -3/+0wow its a great thing there is only like 3% fresh river water on the planet this will be a great way to waste more water good job ducheland
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