Floating wind turbines: Offshore energy's secret weapon
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- čas přidán 21. 07. 2024
- One small twist could revolutionize the offshore wind turbines: making them float. Offshore energy’s major problem is that they can only be built in shallow water, but most of the wind in the world’s coastal regions blow across deep water territory. Can floating wind farms solve this?
Credits:
Reporter: Kai Steinecke
Camera: Henning Goll
Cutter: Frederik Willmann
Editor: Kiyo Dörrer, Michael Trobridge
We're destroying our environment at an alarming rate. But it doesn't need to be this way. Our new channel Planet A explores the shift towards an eco-friendly world - and challenges our ideas about what dealing with climate change means. We look at the big and the small: What we can do and how the system needs to change. Every Friday we'll take a truly global look at how to get us out of this mess.
#Floating #windturbines #offshorewind
Read more:
Offshore Wind Outlook by the International Energy Agency: iea.blob.core.windows.net/ass...
Potential Environmental Impacts of Floating Offshore:
www.sciencedirect.com/science...
LCA of Floating Wind Turbine:
tethys.pnnl.gov/sites/default...
Floating Paper by GWEC:
gwec.net/wp-content/uploads/2...
Cost Prediction of Floating:
www.dnv.com/news/floating-win...
Chapters:
0:00 Introduction
0:30 What are Floating Wind Turbines?
02:15 Stabilization
4:19 Global Potential
5:35 Drawbacks
8.26 Conclusion
Do you think floating wind turbines will be part of our future energy production?
Mybe but why are only horizontal wind turbines being put in vertical wind turbines are more efficient kill way less birds and dont destroy there blades do to insane speeds at there ends and they work in slower and faster wind speeds.
yes
Of course. Whether they become a significant part is another question.
As far as environmental impact, over time these would do more good than harm. The people who talk about bats and birds don't think about offshore means very few bats are there since most insects they eat aren't there, and as far as birds, that's easy enough to deal with by simply keeping them out of migratory paths.
As far as sea life they tend to do better over time with more structures added unless of course those structures leach out oil or gas or other chemicals that kill sea life, and these wouldn't do that.
As the tech will progress, the cost will come down and more innovative methods will arise.
And the best part about them will be if because of any kind of error during installation or in the future they need to be put at a different place they could be transferred.
I don't understand why they're more efficient....like why is it 54% and the others 33%...
With 70% of earth's surface covered with ocean and the majority of human civilization living along ocean coasts, it makes perfect sense to be giant, floating wind turbines offshore and cover EVERY roof, parking lot, and dead space, with solar panels. I think we'll get to a single, pontoon-style, floating pier with one cable anchored to the sea floor with the power cable attached to it.
If you cover every parking lot, where will cars park? People still need them for many practical reasons, and would just end up driving around extra searching for a parking spot. They would drive more, not less.
@@zakosist Think they meant to put solar panels as a sorts canopy over the car park, so your car is in the shade and the land is productive, win win. This would be perfect for places like the southern US, where cities are basically just sunbaked car parks anyway.
Bird choppers and whale killers everywhere
The parking lots around supermarkets snd malls in the USA should be enough?
@@zakosist you have a Pv roof over the parking lot so you have schade place's and generate electricity
1:58 ships don't displace more water as they weigh, they displace exactly as much water as they weigh. They usually could displace more water, but they only do when other nonhorizontal forces apply.
eureka!
Wrong.
@ well now i am convinced
low frequency killing whales
The fact that they can be assembled in the port is in my opinion huge. The amount of technology needed right now to assemble wind turbines out at see, using cranes that have to be stable, and massive boats securing them too the seabed. I can very well see how assembling these on or close to land and towing them to their destination could be a huge cost saving in the long run.
low frequency killing whales
@@trwent yeyeyeyeye, calm down, i probably typed this out around like 2 at night and English isn't my first language.
go back to playing with yourself
the next electricity revolution needs to happen with transmission cables and power lines. we can generate as much power as we want, but so much gets lost in the lines that we need to make a lot more power than we need.
It would be funny to care about the impact of turbines that don't dump anything in the water but not to care for fish farms in water ...
Cause ... there's ton of fish farms in the sea ...
Go to wind power ! More PoWaaaaa bebe !
Brilliant video! I hope you guys can do an another follow up vid on this every once in a while. I also hope that you can dive even deeper in to the research on the environmental impact floating offshore wind could have.
I truly believe that floating offshore wind is the way to go, but I am a bit worried that this could have a negative impact on marine animals, especially marine mammals like whales and so on. Sharing information about this would be very important and useful for the further development of this technology. Hope you guys can dive in to it.
Keep up the good work!
Whales can just swim under or around.
Anything to help transition away from fossil fuel energy is a net positive for animals. Fossil fuel industry gets away with killing millions of birds and marine animal by air pollution and fly ash runoff.
low frequency killing whales
I always thought they should use a few flywheels to stabilize floating wind turbines. It would also act as a battery storage system.
neat idea Anthony. I'd like to see some concepts to see how that could be applied.
Great idea. A silimal concept is applied in ISWEC, a wave energy converter that exploits the gyroscopic effect to stabilize the machine and to harness energy, developed in Torino, Italy
4:11 not just to keep them anchored in place. Also to get the energy from them to land. That's what they're there for, after all. :)
Great introduction to floating wind turbines! This is a game changer for wind energy harnessing. Yes, your craftsmanship is good!
low frequency killing whales
good and educational. easy to understand. thanks
how do they transfer energy back to the land grid? I wish this was discussed in the video.
cables
That's right! Subsea power cables connect the floating turbines to onshore electrical grids. ✨
wifi obviously
Like the ones standing in the ground, there will be a kind of sub-station for the farm (looks like an oil rig) where all the power is fed into a single cable that is then lead back to land.
they store it in the pontoons and a boat collects it every week.
Yes, more research needs to be done. It is more feasible than onshore wind turbines for places with high population density.
Good explanation with the use of bottle..❤
I really enjoyed this Vox-like video format! much easy to consume and enjoy
We just get better and better at wind turbines.
I think those would be a great addition to existing renewables, we just need political will, and maybe energy companies could invest their record profits from oil and gas into such clean technologies. They’re always complaining that they need governments handouts to go green, yet they mostly give money away to CEOs and shareholders whenever they make more money… or just sue them like they did for tobacco companies and invest the reparations in clean energy
Sadly, oil companies do not wish to invest in alternatives like these. They are controlled by their shareholders, who see themselves as dependent on predictable profits. The risk of these technologies are minimal compared to the consistent devastation that oil has caused.
Yesss this is the energy we need. I'm tired of videos like this taking about the cost of a technology when the cost to our environment will be 10 times any renewable project we do. How much money will be lost because of forest fires and floods and other climate change related catastrophes
World wide oil industry gets 5,4 trillion in subsidies every year.
That's 11 million per minute.
@@zotter2542 Subsidies like the wind turbines get? They all get subsidies.
his natural presentation skills are on another level
Loved video…subscribed!
Amazing video and your aquarium setup rocks!
Hey there! Thanks so much, we are glad you like the video. We publish a new video every Friday. Subscribe to our channel to not miss any ✨
Very interestin, thanks for the piece.
could these be double duty where they have hydro turbines below?
That's probably the next tech step, but that is also increasing the cost even more. I think right now they're just implementing the cheapest viable solution.
Turbines just out somewhere in the ocean barely do anything and are a massive pain due to salt water being the absolutely destroyer of all things you put into it.
I was hoping you would mention the floating wind farm in the north of Portugal. It's a pioneering project
It actually appears in the video multiple times and it's the background image when Aaron Smith is talking. Principle Power first wind farm was in Portugal and the company has portuguese capital
@@grandtourerpt ok but I don't remember him referring to it
The technology is expensive, but it's still a lot cheaper than gas or coal or oil or nuclear. And much less environmental impact than any of them, too. The CSIRO puts it at about $4,000 per kWh, compared to $1,200 for onshore wind. Coal also costs around $4,000 per kwh, but that's just the capital cost, you have to add the cost of the coal. If you added in the cost of proper carbon capture and storage coal would be phenomenally more expensive. There's little point in whining about the environmental impact of one technology or another. Our society needs this power, and we need more every year, not just to expand our economy but to electrify other polluting processes (cars, steel, concrete, etc). If you assume we're not going to go back to 4,000BC, then all you can do is compare economic and environmental costs, and solar and wind come out vastly better on both counts than any of our traditional options. So, let's just get on with building them and stop subsidising fossil fuels.
These numbers were per kW of capacity to construct in capital costs (money upfront, doesn’t include operational expenditure).
Could the foundations serve as clamp farms/algae farms?
I think this is a good field of study and investment although I think it comes far behind powering up unpowered water dams, using dams as batteries for other power sources, public and mass transportation systems like trains and subways, hydrogen blimps, etc.
Yeah it's only a fraction of what moving liquids and solids provide due to the low density of air. Plus if there are too many dispersed into the ocean, it could disrupt the heat exchange that normally occurs resulting in increased damage that climate change could cause. The winds are really important, especially near 30 degrees (subtropics) on average on a year on year basis as around that latitude they draw up water and moisture into the air where it facilitates precipitation both near the equator and up to around the arctic circle. With this disrupted, who knows what happens to the weather around the world. This is a bandaid that doesn't actually solve much of anything and creates more issues down the line. If this is the proclaimed "solution", then we are so fucked.
I ain't even gone lie the intelligence involved in this invention is insane makes me jealous of these humans how smart they can be
Excellent. Thank you.
video recomendation- Please suggest Green sectors companies such as in Solar , winds , bio fuel from algae, algae based food, VEG MEAT , EV , electric planes to invest.
Great video - love the model-making work ! This would be a great opportunity for a combined EU development project. A small number of harbour sites on the coast of Europe producing one design of floating turbine to really drive down costs.
I agree. We have a bunch of struggling shipyards in Europe. They could switch over producing these floats, and secure thousands of jobs.
That's a fun video. And for the Audubon Society, it doesn't slice up any birds!
I worked with 1 Norway based company with work from home during COVID
as an iceberg floats deep - make the turbines float deep and raise them high when the wind is low
(the wind always blows off-shore and all you need to pull under sea cables is a boat )
It would be interesting to compare the cost of building the floating wind parks with the cost of building oil rigs. Is it really so much more expensive?
I think they like these because wind is renewable
1.8mil~ for wind turbine vs 20 mil to 1bil for oil rigs. Land ones vcheap. Offshore expensive.
@@faikerdogan2802 How would I calculate the energy output of the rig vs the energy output of the turbine? We should be able to get some sort of dollars to the joule no?
Yes, it is because an oil rig produces a bonkers amount of energy. I took the worst numbers i could find for the oil rig, here we go.
The average usa oil rig produces 4.577 barrels of oil per day. (the average middle eastern one produces 59.945, down from 140.144 in 2000)
A barrel of oil contains 1700 kWh of energy.
An oil rig has a life span of at least 15 years. (while i could also find data of oil rigs that are in operation for more than 40 years)
An oil rig price can get as high as 1 billion dollar, so we'll use that.
This comes down to 1.000.000.000/(4.577*1700*15) = 8.57 dollar per MWh. In the video it is said that an offshore wind farm costs 140 dollar per MWh.
Now of course there are also operational costs, but even that wouldn't offset it completely. This is why for example Shell still heavily invests in fossil fuel even though they want you to think otherwise.
@@tjibbeettema8759 15 times better?? No way 😂 it's worse than i thought. There has to be a math error. I read it as being 2-3 times different
As someone from Indonesia, I am quite enraged. Why is my country not a pioneer in this technology
the earth is getting warmer so more energy for winds, the house i live in has a 30 year old roof that never had any problems but this year a bunch of roof tiles got blown off and these roof tiles are easily 10kgs each. my point is, you need to pin it to the ground otherwise say goodbye to all that investment.
I think you may have missed some of the explainations of how the floating turbines work.
The whole point is they can be designed to be stable even in extreme wind and wave conditions.
And in really strong winds, they can 'feather' the turbine blades, reducing the force on the structure - edcing the destabilising forces.
Its al great but it cost so much to get it ready and the maintenance is also insanely expensive. Hope we will keep resourcing to get the cost down.
Because of this offshore turbines are really big now, a big one is cheaper to maintain than 5 smaller ones. Economy of scale, offshore electricity has become one of the cheapest sources
and this is why you need our dutch expertise to solve the water problems as we are best water architects
5:00 that is the SAIPEM 7000, the Italian massive ship crane capable of lifting 14000 tonnes.
Amazing & Brilliant Of The Education Wind Turbines In This videos i hope in this future i can make to a wind turbines to change of the electrical in this city.
Hey there! If you are interested in wind energy, be sure to check out these videos:
Small wind turbines 👉 czcams.com/video/MrmASjNexdc/video.html
Kites 👉 czcams.com/video/bvbgoJMQm9E/video.html
Adapting the electrical grid for wind and solar 👉 czcams.com/video/u-DsDuTceTo/video.html
Physically, looking at tidal power seems like a lot of electricity could be produced, the sheer force of trillions of tonnes of water going back and forth consistently twice a day! I think, somehow, we can come up with a way to harness it in many regions!
How do you anchor these floating platforms in 2000ft depths and 20 to 40ft seas???????
Using only offshore wind turbines and agro voltaic would be a great way to get to 100% renewables. The wind turbines would A: be less of a pain in the eye and B: Less of a danger for birds and the agro voltaic would live in harmony with agriculture and would even improve it. That's an energy transition I could stand behind.
Hi there, glad you are voting for floating wind turbines! Though windturbines kill some birds, but cars for example, do significantly more. 🚗 We exposed this myth in our video here 👉 czcams.com/video/k_Wa7v76k-U/video.html. Please let us know what you think in the comments. 🌸
@@DWPlanetA The problem is that bird is a broad term. The problem is that wind mills kill a lot of eagles. I dont see how raptors fly low enough for cars or cats to catch them and I don't see why they would hunt in sky scraper littered cities.
They should use the newest turbine design that doesn't hurt birds instead of those silly fans.
Has anyone done studies about the effects that large scale wind harvesting has on the local weather? Surely removing such large amounts of energy from offshore winds will have an impact on the costal rainfall and temperature.
So lots of ways to make wind energy that much more effective on these awesome platforms where they can generate incredible amounts of energy per platform.
🌬 So many creative ways to harness the energy from wind! Did you see our video 🪁 "Why kites could be the next big thing for wind power" 👉 czcams.com/video/bvbgoJMQm9E/video.html
I have seen a Danish invented, deep floating frame for a windmill (Danes are the early Masters of making wind power, and I think more than 50% is produced with Danish machines!), which makes it possible to make windmill parks even on deeper water. For now we have large wind farms out on the sea and talks about an energy island far out!
Yes floating turbines are the business
❤❤❤❤❤❤
Great video🎥, beautiful😍✨❤ technology! Young ones, please, study renewable energy⚡ and engineering👨🔧, bring a beautiful future😊 to life!
How would we prevent animals getting trapped in the anchors?
Hey there! There is still more research needed but several mitigation measures are recommended. One factor is the diameter and the material of the mooring lines. If you want to find out more about this, check out the study we linked in the "read more" section of the video. Another study you can find here 👉 maxwelllab.weebly.com/uploads/9/6/2/0/96205508/maxwell_et_al_2022_floating_wind.pdf?c=mkt_w_chnl:aff_geo:all_prtnr:sas_subprtnr:1538097_camp:brand_adtype:txtlnk_ag:weebly_lptype:hp_var:358504&sscid=41k6_dp8zo. Hope this helps! ✨
@@DWPlanetA thank you for reaching out im glad that a youtube channel actually responds to there viewers questions, you just earned a sub :)
Can u please tell me is this efficiency in all kinda ways... Production cost.... installation cost.... Efficiency of turbine
Hey Arun, if you refer to the comparison between bottom fixed and floating wind turbines (5:46 minutes to the video) - we are talking about the energy efficiency. ✨
He had to call them floaters lol!
How do you get the generated energy to land without negatively impacting the environment in ways similar to the moored platform?
LOL
Why don't they just use a raft and put a dozen or so of the vertical wind turbines on it? Seems overengineered what they are doing. That reflects in the price.
More bigger more spend money.... inconsistency
There are always two sides of a coin - 1 - Create Renewable energy & 2 - Conserve energy at home and offices. No matter how much you create, If people dont stop wasting energy, none of this will ever be enough
I think DTU made a model of a floating wind turbine
The IAE (who knows a thing or two about energy) have said that wind alone can power the world 11 times over!
What do you do with them when they wear out.Landfill.Cost.There will be no soil left for vegetation to grow..
Also another postive point for far out off-shore wind is that the wind will blow almost 24/7, so reducing the risk of system instability.
Who needs "far off" offshore power?
@@julien.4617 Everyone who wants power when there is no wind on land
@@Darkness251 That infrastructure and maintenance is going to be quite expensive. Offshore is one thing far offshore is a big difference.
there are so meny of these in China, you can see A LOT of them located next to Shanghai during landing (Pudong Int. Airport)
Better off extracting crude than having these things everywhere making it hard for ships to navigate
how do you get the energy to the coast floating power poles?? becouse if they are underground cable then the see will obliterate them
Hey there! Subsea power cables connect the floating turbines to onshore electrical grids.
We already have the ability to lay undersea cables. It's not a problem.
Why, the reason you can even comment here is because of undersea internet cables.
Does it interfere with detection of incoming low altitude missiles and suicide drones?
Not a word about the biological impact that the acoustic survey ships are doing to marine mammals especially off the Northeast US? These projects are allowed to kill thousands of marine mammals per year but everyone thinks that these turbines have low to no environmental impact. Go read up on the “takes” of marine mammals each of these sites can take each year and read upon what the survey ships are doing to whales on the east coast. Very enlightening!
Turbines have already killed off 10% of Germany's birds of prey.
They can be assembled in an port and pulled into the zones. We already have ports near everywhere we live on every coast. For logistic reasons.
Those logistics also make it quiet easy to make the supply chain work.
I can also quiet easily see the cost going down with scale. If you have 5 turbines 40 km out of the coast. You'd need to fly in 5 people by helicopter or by ship for the gearbox maintenance.
If it's 500 of them. You just need a slightly bigger ship with slightly more maintenance people. But you can still do it in 1 journey.
I am so disappointed that I heard nothing of the wind parks affecting the wind's speed, then affecting the sea currents, they affecting the sea life etc.
Any one got a better plan to solve clean energy?
Cost are enormous, still very little compared to bombs and aircrafts
I think we should tap this guy instead. Truly unlimited energy
Now that bouyancy and stability has been solved, how is harnessed energy transferred to electricity use on land?
Subsea cables connects strings of turbines to an offshore substation, that transfers the electricity to an onshore substation, an further to the national grid. This is lack in this video, as the floating offshore substation is still (like the floating foundations) quite the hassle, as well is dynamic cables.
Get every sea crossing ship to dump waste that benifits sealife on every journey.. Or drop structures that could help build reefs where possible
Very interesting
This is not if but when it will happen. The sooner the better.
They all float down here!
Clever 👏
I look forward to seeing Britain’s beaches being full of these 😂😂
You didn’t say how they're fetching the power to the consumers from the sea
Not talking about the cables to connect the turbines to shore is a bit weird.. Moreover, bottom fixed structures have WTG towers and foundations, the tower and foundation are not the same. No one hammers in the tower as shown in the video
Pretty neat.
This will be so expensive
Shouldn't this up and down movement be used to Power a wellsturbine? Like in this in Oscillating Water Column wave power plants,
Price of wind turbines keeps coming down. It will also happen with these floating ones.
In theory, if the grid of the entire world is interconnected and smartly managed, with all renewable energy such as solar, wind, tide etc covering wide range of the entire world, we should be able to fully get rid of fossil fuel even as peak backup. If you look at the entire world, the sun never set, half of the globe is under sunshine, also half of the globe is in summer…
&t=5m55s
"turban" - head wear
"turbine" - electricity generator
Could they put tidal energy turbines somewhere under it?
Hey there! Yes, there is research on that and suggested concepts. The combination could also be a way to reduce costs. However, there are challenges such as finding suitable locations.
Good video. Great it shows the care being taken of the environment. I bet no coal-fired power stations ever had to jump so many hoops.
❤
@Val Martin - Real True Education when was Germany's mass blackout?
In my country all the coal plants are getting old, breaking down more frequently. Unavailable 25% of 2022. So yes, they did their job, but since nobody will risk their money to build one, the best alternative is wind and solar
Has anyone done studies about the effects that large scale wind harvesting has on the local weather? Surely removing such large amounts of energy from offshore winds will have an impact on the costal rainfall and temperature.
@normanmazlin6741 I am neither scientist nor engineer nor meteorologist, but your point has been answered many times. Essentially no, there is no significant effect. But I guess it always depends where people choose to get their facts ...
@@lawrenceheyman435 Most countries are turning to the better solution of nuclear power. SMRs are now a commercial reality and are being deployed as direct replacement to retired fosil fuel plants, without the need for rewiring the country with expensive highvoltage transmission lines.
it floats because of german sorcery 😅
DW can prepare a 9 minute video but it also could simply cite the law of the lever. Torque is equal to force times length of the lever arm. On the other hand, I doubt that anyone inside DW is able to cite any laws of physics.
We can combine the wave and wind turbines into one platform.
Why a hemi Spherical structure is not used as floating bottom?
Hey there. 🍀 Could be because of its challenging construction and the fact it may not be as practical as the examples we see in the video. Did you happen to have more leads to the topic? 👀
Nice
Bade wind turbines yane mega ocean or hill ki wind mill me fan upar pole pe ho turbine niche ho shaft se turbine ghume
Pole gira to bhi turbine kharan naa hogaa
Amazing how many energy videos get capacity and load factor wrong. 33% is not a capacity. Capacity shows the maximum potential energy generation in MW where as load factor shows the total energy produced divided by the theoretical maximum.
What’s the point if inflation it’s going to keep my electricity bill getting higher and higher every year. It would be great that technology makes everything cheaper but is like LED bulbs appear. My whole house is full with them now and every year my bill keeps going up.
They could tap the wave energy too.
Hey there! If you are interested in wave energy, check out our video 👉 czcams.com/video/UUlA5WKDiww/video.html
still cheaper than nuclear energy, and price is expected to go down as explained (and as with all new technologies)
This is amazing ❤
There's literally moving water that can generate more energy than wind...
If youre thinking of tidal or wave energy then those are insanely expensive
Who ia going to talk about the elec.cables from the wind turbines to the ground??? They have to layed on the ocean floor- what kind of ending you have- the structures float -😅
Saw this in tenet