Vertical-axis Wind Turbines could Revolutionize Offshore Wind Power 

As someone in wind energy, many of the facts presented here are simply not true. Rough MWh LCOE by source: Coal 110$ Nuclear 155$ Offshore wind 115$ Onshore wind 53$ Photovoltaics 68$ Subsidies are meant to nurture a technology until it's maturity and price competitiveness. This is exactly the case with wind energy as the first subsidy free 1.5 GW Hollandse Kust Zuid offshore wind farm was opened. Turbines are continuously growing, requiring less foundation units, less cables, less installation manhours, benefiting from economies of scale. GE has 2 operational 14MW turbines and Vestas is just rolling out the first prototype of 15MW V236. Being open to new ideas is one of the pillars of engineering. This is probably why a new revolutionary horizontal axis turbine concept pops up every 6 months, but rarely sees an industrial scale prototype. I am looking forward to Seatwirl's S2 project's success!

The 1MW Demo scheduled for 2023, will be operated by METCentre - who has several floating offshore wind demonstrator/pilot projects in its portfolio.

A revolutionary and innovative design, this new model of vertical axis wind turbines can bring down the cost of energy. Offshore wind power plants have a tower connected to the underwater structure, the energy of the wind causes the turbine to rotate similar to the function of a keel on a sailboat. Being able to be transported to any place where there are strong winds, this wind turbine is safely anchored to the bottom of the sea, this megaproject is evolving, it has everything to work out, it is incredible and ingenious, much more efficient than traditional power plants. 🎯

Does sound like a promising breakthrough, do wish such turbines could last longer

Regardless of technology, you cannot escape the basic, physical fact, that winds at the greater height of vertical axis machines, are simply much, much more powerful and regular. I could see a role for these, sitting between the uprights of a massive off-shore wind farm. (News in today: A single off-shore wind turbine, in a 24 hour period, generated... drum roll... 359Mwh. Enough to power a totally electric home-car andall- for 30 years. Too, too slow, but we're making huge advances.

Great video. Just a correction though: SeaTwirl is not a Norwegian company, as mentioned in the video, but a Swedish company listed on the Nordic stock exchange Nasdaq First North. Currently the company has a valuation (market cap) of less than $30 million so the potential of the stock is huge from here considering all the advantages mentioned in the video.

Even if energy was generated at almost zero cost, Our bills would remain outrageously high. The powerful will never give up their power and money equals influence, which is a commodity beyond price.

About time they got smart about wind mills.

EIA projections of cost are around twice the contracted price of recent European offshore wind power contracts!

EXCELLENT.....what a GREAT idea. Definitely something that needs to come this way towards California.

And if the area of the arms could be increased in low wind and reduced in strong wind, the efficiency of using wind power would increase, and the number of working hours during the year would also increase.

Cool. Now put current, wave, and vawt collectors on one platform.

That's some very glassy water. Never see it like that off the So Cal coast.

I watched an undecided video where Matt Ferral covered something similar except the windmills would lift weights up from the ocean floor then releasing it would generate electricity, and another version were the blades of the windmills would retract according to wind speed greatly improving the overall performance by allowing their windmills to operate in much higher wind speeds and last longer by only absorbing the wind it uses instead of using brakes to slow the blades and bucking against powerful gust.

Ocean farm 1 has 110 metres diameter, bulk strength, semi submersible two forms of energy food and electricity, multifaceted industry a combined investment venture.😊

Dream on. Good luck with that. Vertical axis has been tried, and tried again, to no avail.

Intuitively, I knew the "big fan" type will not be effective, the reason is very simple : material, shipping, installation, foundation, maintenance, ... etc.

Some problems with them: The wings have to withstand transversal wind and centripetal forces, making it necessary to make them stronger, thus more expensive. Ordinary wind turbines can use centripetal forces to make the wings stronger, since the force is along the wings, thus cheaper. There are also 2 wings in the area where ordinary turbines have one, thus again losing efficiency, like a biplane versus modern monoplanes.

Power is free but with correct knowledge

Gorlov Helix. Helixes are far more space and energy efficient, and are far more eco-friendly, and safer for both flora and fauna. My two cents. Otherwise a wonderful, fantastic idea.

These new Designs r fabulous

Love it it's application can be on land as well in smaller diameters Centrifuge style

Propeller type is the most Material Efficient type. The least material covering the largest Wind area. Which is the most important factor in cost efficiency.

Interesting. I hope they are successful in their next trial.

CALIFORNIA: OFFSHORE wind power for onshore DESALINATION ♻♻

The blades on the propella turbines degrade over time from dust & storms it chips away the coating .

How will these deal with wind and waves in a gale-force conditions?

Could you use blades from old wind turbine for blades of horizontal wind turbines like the sea wirl

Vertical axis wind turbines have been in use for more than 40 years, and have drawbacks. The primary one, is the bending moment of the axis, which on land, requires guy wires to limit the bend. The sea 'float' reduces that bending moment, but also introduces the possibility of the rotor blades tipping into contact with the sea in high wind conditions. All ocean placed wind generators will suffer from salt water corrosion, so lifetimes are likely shorter than stated, especially as the generator/gears are place close to the water surface. Sorry, I see this as another concept proposal that most likely will not gain enough investment to become a success.

Energy in the wind is to the power to the 3 of speed. In round numbers. You said, double energy when wind speed goes from 20 to 25 km/hr., and thus doubles again at 30 km/hr.. That is 4 times more power. The wind turbine has a wind speed limit for the electric generator, at maximum capacity. Horizontal wind turbine change pitch to deal with higher speeds, and if very high lockdown the turbine. Vertical wind turbine to be simple and robust have fixed blades. Thus only speed of rotation can be used to adjust the energy feed to the electric generator. A slipping clutch is the simplest and robust means of controlling rotational speed. Total energy removed from the wind is the sum of slippage wear and heat and electrical power generated. The alternative is to lockdown. Or the generator is over-sized.

Can it work efficiently on land as well?

Can u please attach the CAD/STl file of the vertical wind axis turbine please? It’s for a mini project of mine thank you!!

Where can I get the blades for vertical axis wind turbine

38$ for gasoline generator am extremely skeptical about said number

People are obsessed with efficiency, its just gotta work at scale, that's it

at 3 min 7 second which software was that. please reply

I think so too

I wonder how big they can make them?

How to control overspeeding the rotor?

Why the speed or the rotation is so slow? This type VAWT usualy spin so fast to have lift effect to increase efficiency.

Referring to horizontal wind turbines, you said: "It is not possible to reduce the price with current technology and designs" But I'm 100% convinced that it is possible to dramatically slash the price with a different design I call the Wind Ring. It's a slightly less aerodynamic, functional horizontal axis wind turbine that is so cheap and sustainable it's practically sinful to ignore. Please check it out. Links on this channel.

Wait. What? Off-shore wind is now the cheapest form of electricity. What's this crap about gasoline generators being cheaper per kWh? That's impossible. Energy companies would just be running gas engines all the time.

Have you even noticed? Every time somebody build a new windmill farm in a new locality, the wind stops blowing there. Its almost magic. All the money being spent on windmills, all the coal to smelt all the steel, all the petroleum to make the epoxy resin of the blades, is just going for nothing......

Not sure where you are getting your information, but you do not need a strong base for a wind turbine. They can float in the water with only a single shaft. And they have not reached their limits. The largest turbine I have seen is 20 megawatts each. These turbines will outproduce a VAWT.

theres thousands of old ships and oil tankers why not build them on them ,you,d get a hundred of them on a tanker

Not making the best of wind? It's a part time energy source!

Make a video on quantum noise power device ...

perfect

I do not believe/understand the numbers .... how does a wind generator reduce its performance over time?

Talk about stressing the obvious! The first time I saw one of those 3 bladed eyesores I said, "Why the hell don't they use a vertical axis?" The advantages in design are so obvious a child could have told you that they are more efficient and cost effective in every way imaginable. But give that even they will need to be totally replaced by entirely new infrastructure every few years, the whole myth of "free energy" will remain nothing more than a duck-squeezer's fantasy.

Why can't we use conical wind tunnel, air drawn into large diameter side to small diameter side creating high air flow and velocity pressure but only problem is that it can not revolve according to wind direction. Any suggestion from gentleman reading my comment.

This technology was known about umpteen years ago, possibly a hundred. The problem in those days was they couldn't solve the frequency vibration it produced, so it always ended up destroying the windmill. No more wind nonsense, we're all going to roast/freeze to death because of computer modelling, forecasting doom in a hundred years' time, God give me strength.

Now with no Russian gas, it may be an idea.

<a href="#" class="seekto" data-time="132">2:12</a> "Difficulties of working conditions at sea leads to the fact that every year the efficiency of installations decreases an average of 4.5%." This first appears to be human working conditions at sea causes 4.5% drop in wind turbine efficiency. Maybe this is what was meant "Typical harsh sea operational conditions, greatly wear to their blades, causes offshore wind turbines to suffer an average yearly 4.5% decrease in their electrical power output." 10 years X 4.5% is 45% not 50% as stated in the video. Offshore wind turbine blades are fiberglass with reinforcement. Possibly carbon fiber. These materials don't stand up to 100 mph 160 kph large hail from hurricanes that is inevitable for offshore wind turbines in hurricane prone areas such off the east coast of North America. Maybe that is once in hundred years storm, maybe 20 years, maybe next year. One extensively damaged blade would throw the wind turbine out of balance requiring it to be locked down till serviced or it would tear itself a part. <a href="#" class="seekto" data-time="145">2:25</a> "The probability of failures and break down is also growing. After eight years it is 80%". It is unclear if the wind turbines are left derelict. There are typically no large subsidies to repair wind turbines which were in effect when they were built. There is also a heavy human risk factor of risking human lives for a machine that may not have many service years left. Fish are chased away by the noise of wind turbine at power. The sea life seams like these structures when not making noise. <a href="#" class="seekto" data-time="260">4:20</a> Vertical axis offshore wind turbine. The basic physics of a wind turbine is it is extracting the PUSH from the wind. It should be possible to calculate the strain on wind turbine tower or mast to calculate the total force of the wind force on the tower and blades. The more power the blades are extracting from the wind the more force they push on the tower. That is the case for horizontal or vertical blade wind turbines. Strain gauges in the wind turbine tower could be used to determine the wind loads imparted to the tower. A totally calm day might be used to get a base line. Vertical turbines in part an asymmetric (non symmetric) rotating toque of their their wind loading of their support structure requiring it to have great rotational resistance from its foundation. That's the kind of movement used to remove stuck bolts and screws! It is in addition to the horizontal pushing force the vertical structure and foundation has to resist from the wind pressure on the blades and other structures. That high twisting force into the foundation likely keeps vertical axis wind turbines from becoming large. There is no wind gain on the forward sweep of the vertical blades into the wind. Any resistance of the up wind rotating blades reduces power generated by the down wind rotating blades. It also reduces the torque the foundation has to resist. There is no way to dynamically balance the vertical twisting load on the foundation because that is the force the is being used for energy extraction. That is one of the reasons horizontal wind turbines have a large advantage over vertical axis wind turbines. Horizontal wind turbine have a strong rotational horizontal force the tower has to accept that is horizontal in nature at its foundation not twisting. It the foundation were to give way suddenly under wind power it would rotate upward. A tumbling giant wind turbine at sea would be something you'd want to be a safe distance away from! Kind of like watching a tornado. One 1MW of generating capability from a grid power standpoint it is not much. A GE locomotive AC44CW produces close to 3.3 MW of electrical power.

Does anyone from India interested in manufacturing wind turbine

13m high, so it doesn't get too much wind

I think there is only one blade effectively working at a time but in conventional wind plant ,all blades absorbing wind force simultaneously !!

Thank you for this video . Hard to come by videos with so much data . ~80% of turbines need to be serviced after 8 years only. After 10 years they produce 50% less energy😲. Price 4x of fossil energy. Hope this new technology will be better

Unless they are not powered with gas...

The motor on a VAT is only a few feet above the water level. Won’t it get swamped all the time?

you want to pay more for electricity bill, use wind turbine.

Bad news for me

After 10 years they produce half as much energy? If that were true, it would be a colossal waste of time. Imagine building a house that lost half of its "shelter" after 10 years. Honestly, it already is a waste of time though, just because of how poorly designed those blades are. They still haven't figured out how to put proper sails on those things? Seatwirl is actually worse in its design than the current version. Those engineers really are something huh?

If instead of electricity you make this turbine produce high pressure water the producción will increase because hertz will not be a factor,so they can turn 50%slower or faster plus a positive displacement pump is Les than half lighter than a generator,and no electronic, then you combine all the water on a single generator inland,exes water can be store in pressure vessels for peaks demand.

أنا عندى ابتكار تقنية أقل تكلفة بكثير وتنتج طاقة أكبر مما تنتجه هذه التقنية.

Wind turbine in sea?? So if storm and hurricane pop up... generator will make more electricity ..rite

How about building Nuke plants instead of wind turbines that will become huge amounts of garbage in a short amount of time and no battery infrastructure to store wind power

EIA equals sponsored by the petro-chemical industry.

Why don't we balloon turbines in the upper atmosphere and send energy down? Lol, as if this can vertical system can handle massive swells and the shaft spinning underwater creates unnecessary drag as shown. Last, this system "floats" and has a keel? Hmmm

They went away from vertical axis turbines even on land because of many reasons. For example: balancing - nearly hopless for larger vertical turbines.

Unfortunately most assumptions in this video are not true.

Could. But won’t. These windmills are a boondoggle because the unreliability.

Pretty superficial video, without quantitative data to support the idea that VERTICAL axis turbines are more productive than HORIZONTAL axis ones. From time to time people get exited abut this 'revolutionary' type of technology. The only application I can see is on the roof of buildings in crowded areas where horizontal axis wind turbines cannot be installed.

These are probably more efficient killers of birds, but as in _The 5 Element_ if no wind blows... Nothing happens.

These turbines are an environmental disaster - stop the madness!

They're still gonna have to put a s*** turn a window binds all over the place

Offshore and onshore wind are already cheaper then gas powered energy production. This video is full of crap

Good lord, stop trying to make vertical axis turbines. They are not as good.

The information in this video is pure fiction. This whole video is utter nonsense, misinterpretation, misinformation and magical thinking. Offshore wind turbines are ALREADY producing energy at a cost of less than $50 per MWH. It's pure economics, if Wind turbines really cost so much more per MWH than other forms of generation then nobody would build them. It just wouldn't be profitable. And before people start whining about subsidies, I remind you that the fossil fuel industry is the most subsidised industry in the world. Vertical axis wind turbines are great for certain applications, but they have their own drawbacks that limit their utility for large scale offshore use when compared to the current designs. Again the tech isn't new if it really was more viable PEOPLE WOULD ALLREADY BE USING IT. Because of economics.

go nuclear fusion, also alpha-beta nuclear energy storage, dont bother with small things

Vertical axis efficiency is much lower than horizontal axis reason why vertical axis is today not predominant

The wind is not controlled by humans. It’s simple. The cost of energy storage is prohibitive. CO2 is not a pollutant and is NOT the driver of climate change. If you have EVIDENCE to the contrary,I repeat, EVIDENCE then please post it

😜😜

How many sea birds are these going to kill.

Follow the money, the money is shy limiting its investment to virtue signalling self promotion. If the reality of alternative energy was a money train, the money would own it and we wouldn’t even know.

So much false information...

It's a scam.

Ridiculous.

You have to get your facts straight before putting up a video. Now this is just plain lying to make the tech look better. Your compairisons are all wrong, numbers are not right and there are lot of offshore windmill parks built and yet to be built without any gouvernment subsidies, in various country's.

Far too large a rotating mass to be stable for very long. A hair brained idea.

1

Usual claim - it will be cheaper

Fundamental aerodynamic facts makes vertical axis wind turbines dramatically less efficient than normal “propeller” versions. Totally meaningless to use this.