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Wave energy generators
Posted on 5/7/24 at 8:39 pm
Posted on 5/7/24 at 8:39 pm
Water is about 800 times as powerful as wind for energy. Of course, the ocean and salt water is an extremely challenging environment.
https://www.youtube.com/watch?v=9qu2OIw4-p8
https://www.youtube.com/watch?v=9qu2OIw4-p8
9
Posted on 5/7/24 at 8:45 pm to Auburn1968
They have projects going on in the gulf
Posted on 5/7/24 at 8:45 pm to Auburn1968
You think a crab trap is bad in your prop. Wait till you hit one of these.
Posted on 5/7/24 at 8:45 pm to Auburn1968
Buoy 'o Buoy Here we go again
Posted on 5/7/24 at 8:51 pm to Auburn1968
quote:
Of course, the ocean and salt water is an extremely challenging environment.
Posted on 5/7/24 at 8:52 pm to Auburn1968
Have scientists considered trying to harness energy from other forms of waves?
Posted on 5/7/24 at 8:56 pm to jmarto1
About 70% of Earth is ocean. Waves tend to run 24/7.
There are a lot of experiments on converting wave power to electric power going on. Kind of fun stuff, but I haven't seen anything yet that looks like it would be profitable.
These things are 20 yards tall!
There are a lot of experiments on converting wave power to electric power going on. Kind of fun stuff, but I haven't seen anything yet that looks like it would be profitable.
These things are 20 yards tall!
This post was edited on 5/7/24 at 8:59 pm
Posted on 5/7/24 at 8:59 pm to Auburn1968
Looks like a good cobia spot.
Posted on 5/7/24 at 9:01 pm to Auburn1968
quote:
There are a lot of experiments on converting wave power to electric power going on. Kind of fun stuff, but I haven't seen anything yet that looks like it would be profitable.
It's one thing to harness energy and convert it into electicity with unconventional means... but how do you transport and store it?
Posted on 5/7/24 at 9:04 pm to deeprig9
Perhaps, a cheap way to make a buoy would be with Styrofoam, fiberglass and cement with brass pumps sending water up to an old oil rig reservoir. Little or no electronics needed except for a turbine on the oil rig.
The cost of too many of these designs look way too expensive.
The cost of too many of these designs look way too expensive.
This post was edited on 5/7/24 at 10:16 pm
Posted on 5/7/24 at 9:23 pm to Auburn1968
I like the buoy ideas because we've had buoys in the oceans for generations that are robust enough to survive storms.
https://www.youtube.com/watch?v=nwW6lGn-Tk4&t=245s
https://www.youtube.com/watch?v=gvJ6EzPjfR0
https://www.youtube.com/watch?v=xrQBQ2m2blk
https://www.youtube.com/watch?v=nwW6lGn-Tk4&t=245s
https://www.youtube.com/watch?v=gvJ6EzPjfR0
https://www.youtube.com/watch?v=xrQBQ2m2blk
Posted on 5/7/24 at 9:36 pm to deeprig9
quote:
but how do you transport and store it?
You don't store it, but hook it directly to the grid. Each buoy is connected to the sea floor and there's a network of cables that hook them all together. Then some of those cables go to the shore and hook into the grid. I would imagine a substation might have to be built near the shore.
These things aren't as variable as wind. Those wind turbines may stop spinning completely, but the sea always has wave energy. When the sea is quieter it may output a bit less, but not as many radical spikes as with wind.
The downside with them would be twofold: 1) They probably don't look good and 2) drunk sailors may ram them.
Posted on 5/7/24 at 10:14 pm to AUstar
Posted on 5/7/24 at 10:20 pm to Auburn1968
Posted on 5/7/24 at 10:29 pm to AUstar
quote:
The downside with them would be twofold: 1) They probably don't look good and 2) drunk sailors may ram them.
Can I add a third fold? How much tax payer money does it take to put one of these online and how much coal and/or megawatt hours does that buy?
Posted on 5/7/24 at 10:32 pm to Auburn1968
This should have been discovered long ago. Why did it take this much time?
Posted on 5/7/24 at 10:37 pm to gmac8604
quote:
This should have been discovered long ago. Why did it take this much time?
Lots of other sources of energy are cheaper and more accessible. Still, ocean waves pack a tremendous amount of power and they run all day and all night.
Posted on 5/7/24 at 10:38 pm to Auburn1968
Better than this stupid shite. Ruined before it even got up and running 
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Posted on 5/7/24 at 10:43 pm to ElChupacabra
Thirty or forty years ago, there was a project off the northwest coast of France that was supposed to harness wave energy.
Has anyone seen a followup on it?
Has anyone seen a followup on it?
Posted on 5/7/24 at 10:51 pm to gmac8604
quote:
This should have been discovered long ago. Why did it take this much time?
Because it is really effing hard to do in any economically practical way. You have:
1. Reversing flow direction, so you either discard 50% of the power or come up with a very complex drive system.
2. Incredibly hostile environment - sea water, critters, plants, storms, etc, all of which hate machinery.
3. Hard to service equipment, PM is through the roof because of the environment, and God help you if something breaks and you leak fluids into the sea, because the legion of government agencies and NGOs who will be on your case for fines, lawsuits, etc sure won't.
I could go on for a while. Worked on some engineering projects in this realm. We've been trying to do something practical for over half a century.
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