Activity Ramping Up On Irish Floating Wind Test Site
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
The Sustainable Energy Authority of Ireland (SEAI) is busy with bringing forward its Atlantic Marine Energy Test Site (AMETS), a floating wind and wave energy technology test site which has been in development for several years now. Along with offshore surveys scheduled for next month, SEIA has also commenced work on procuring an onshore substation and a floating LiDAR for AMETS.
It all sounds very professional.
The Atlantic Marine Energy Test Site will be located off Annagh Head in the West of Ireland. This Google Map shows the location of Annagh Head on the island of Ireland.
I do have a imperfect memory of a weekend of good hospitality and gourmet food at a hotel called the Cashel House Hotel to the West of Galway, but I can’t remember how C and I flew there. Did we fly to Knock or Shannon either using a scheduled airline or my Cessna 340 A?
All I can remember of the holiday, was that it was very windy at times and driving through Westport. So did we explore towards Annagh Head?
This Google Map shows a close-up of Annagh Head.
I suspect that Annagh Head is an ideal location to test floating wind and wave power.
There will also be good hospitality and airlinks to the UK and Europe.
In So Many Floating Wind Designs, So Few Test Sites – Norwegian METCentre Sold Out, I wrote about the shortage of test sites for wind power.
So perhaps, AMETS will help to fill the gap?
In
Entrion Wind Wins ScotWind Feasibility Deal For Its 100-Metre Depth Foundation Tech
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Entrion Wind has been awarded a project to evaluate the feasibility of its patent-pending fully restrained platform (FRP) offshore wind foundation technology by a Scotwind developer.
Having worked on similar structures for reusable oil platforms in the 1970s, I reckon these FRP monopoles can be made to work.
The structures, I mathematically-modelled were for a company called Balaena Structures, that had been started by two Cambridge University engineering professors. The structures were about a hundred metres high and perhaps thirty metres in diameter.
They would have been built horizontally in the sort of dock, where you would build a supertanker and would have been floated into position horizontally. Water would then be let in to the cylinder and they would turn to the vertical. From that position, they would be lowered to the sea-bed by adjusting the water in the cylinder. They had a method of holding the Balaena to the seabed, which relied mainly on the weight of the structure and what they called the gum-boot principle.
Sadly, they never sold any platforms and the company folded.
Until recently, you could find the expired patents on the Internet.
There’s more on Entrion Wind’s technology on this page on their web site.
Wales’ First Floating Offshore Wind Farm Gets Marine License
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Blue Gem Wind, a joint venture between TotalEnergies and Simply Blue Group, has secured a marine license for the 100 MW Erebus floating offshore wind project in Wales.
These are some other points from the article.
- The project will use seven next-generation 14 MW turbines.
- They will be mounted on WindFloats, which are a proven technology.
- The wind farm will provide enough renewable energy to power 93,000 homes.
- It is aimed that the project will be commissioned in 2026.
The project has a web site, which is in English and Welsh. The home page has a good visualisation of three wind turbines on their WindFloats. Underneath is this mission statement.
Independent studies have suggested there could be as much as 50GW of electricity capacity available in the Celtic Sea waters of the UK and Ireland. This renewable energy resource could play a key role in the UK meeting the 2050 Net-Zero target required to mitigate climate change. Erebus, the first floating offshore wind project in the Celtic Sea will provide new low carbon supply chain opportunities, support coastal communities and create long-term benefits for the region.
Wales will be powered by sea dragons!
Floating Offshore Wind Could Reach Full Commercialisation By 2035, Research Says
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Floating offshore wind could reach full commercialisation by 2035, said 60 per cent of respondents in the latest research that was done by DNV, with 25 per cent believing it will be as early as 2030.
I’ll go along with that, but as a serial disruptive innovator, I believe full commercialisation could be earlier than 2027.
It will be for these reasons.
Capacity Factor
There is reason to believe from the figures from existing floating wind turbines, that the capacity factor is very good and could be higher than those of turbines with fixed foundations.
Wikipedia says this about the world’s first commercial floating offshore windfarm; Hywind Scotland.
In its first 5 years of operation it averaged a capacity factor of 54%, sometimes in 10 meter waves.
If other floating technologies show as good capacities as this, then the technology may well find it easier to attract finance.
Design
We have only seen a couple of designs deployed; Hywind and WindFloat.
There will be plenty more to come.
This visualisation shows five D-Floaters being transported on a ship.
Note.
- D-Floaters are being developed by Bassoe Technology.
- As many floats will be manufactured, a long way from their final mooring, why not make them easy to transport.
- Other companies are developing floats that can be bolted or welded together from standard components.
I wouldn’t be surprised if one design came to dominate the market.
This might be a good thing, as it would surely speed up deployment of floating wind farms.
Construction And Installation
This video shows the construction and installation if Principle Power‘s, Windfloat prototype.
Note.
- All the construction and assembly is done in a dock with a suitable crane.
- This is much easier than doing it the assembly out at sea, as has to be done with turbines with fixed foundations.
- I suspect that with the best design of float and turbine, high rates of turbine assembly can be achieved.
- Health and Safety will prefer this type of assembly.
I suspect other floating wind turbines will be similarly assembled.
Suppose you were assembling 15 MW floating turbines at a rate of one per day, that would be a production rate of over 5 GW of turbines per year from just one dock.
Early Delivery Of Power
I suspect that to build a floating wind farm, one of the first things to be towed out would be the substation to which all the turbines will be connected.
- This could even be floating.
- I’ve seen floating sub station designs, that incorporate energy storage and hydrogen production.
Once the substation is fully-installed and tested, floating turbines could be towed out, anchored, connected to the substation and immediately start to produce electricity.
I have built a lot of cash-flow models in my time and I believe that one for say a 2 GW floating wind farm would be very friendly to proposers, investors and operators.
There’s A Lot Of Sea Out There!
And after nearly sixty years of offshore semi-submersible platforms in UK water, we now how to work in the conditions.
In ScotWind Offshore Wind Leasing Delivers Major Boost To Scotland’s Net Zero Aspirations, I said this, about the total capacity, that will be developed under the ScotWind leasing round.
- Adding up these fixed foundation wind farms gives a capacity of 9.7 GW in 3042 km² or about 3.2 MW per km².
- Adding up the floating wind farms gives a capacity of 14.6 GW in 4193 km² or about 3.5 MW per km².
Note.
- You appear to get ten percent more capacity in a given area of sea with floating wind farms.
- The energy density of floating wind farms is 3.5 MW per km².
I suspect investors will prefer the floating wind farms.
Lower Visibility
Floating wind farms will generally be further out to sea and less likely to be objected to, than installations nearer to land.
Maintenance And Updating
Floating wind farms can be towed into port for servicing and updating, which must ease the process.
Project Management
I believe that floating wind farms, are projects, that would benefit highly from good project management.
Sometimes, I wish I was still writing project management software and I am always open to offers to give my opinion and test anybody’s software in that area!
Finance
I can see that floating wind farms could offer better cash flows to investors and this will make them invest in floating wind farms at the expense of those with fixed foundations.
Conclusion
For all these reasons, but with my instinct telling me that floating wind farms could offer a better return to investors, I wouldn’t be surprised if floating wind farms came to dominate the market.
Green Volt On Track To Power UK Oil & Gas Platforms By Mid-2020s
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Flotation Energy and Vårgrønn have submitted a Marine Licence application for the Green Volt floating offshore wind farm.
These two paragraphs outline the project.
This consent application could allow the project to start generating power in the mid-2020s, making it the most advanced oil and gas decarbonisation project in the UK, the developers said.
Flotation Energy and Vårgrønn are applying for a lease for Green Volt under the Crown Estate Scotland’s Innovation and Targeted Oil and Gas (INTOG) round.
Green Volt wind farm already has a web site, which gives these details of the wind farm.
- It will be 50 miles off Peterhead.
- 300-500 MW
- Operational in 2027.
The offshoreWIND.biz article also says that the project has the potential to generate enough green power to electrify all major oil and gas platforms in the Outer Moray Firth area.
I can’t wait for the successful INTOG bids to be announced in April.
Engineers are creating exciting times.
Scotland And Brittany Discuss Partnership On Floating Wind Turbines
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
A delegation of fifteen Scottish companies met in Rennes, France, with companies from the Brittany offshore wind and marine energy sector to discuss the development of partnerships around floating wind turbines.
I can see more partnerships like this.
Wind Power For 1.2m Homes Is Wasted Because Of Lack Of Storage
The title of this post, is the same as that of this article on the Daily Telegraph.
These two paragraphs outline what happened.
Enough wind power to supply 1.2m homes a day was wasted over winter because there is no capacity to store extra energy generated on gusty days, according to new research.
National Grid’s electricity system operator asked wind turbines which were expected to generate about 1.35 terawatt-hours of electricity between October and January to switch off instead because they were not needed to meet demand at the time, according to the consultancy Stonehaven.
The problem has been flagged up by Rupert Pearce of Highview Power, who in my view could have a solution with their CRYOBatteries.
Pearce is quoted as saying this.
Renewable energy storage is essential to powering a cleaner, cheaper, always-on Britain.
By capturing and storing excess renewable energy, which is now the UK’s cheapest, most secure and most abundant form of energy, we can power Britain’s homes and businesses with renewable green energy, taking millions of tonnes of carbon out of the atmosphere and ending a culture of reliance on expensive foreign imports.
He’s too bloody right! And my experience of mathematical modelling large vessels at ICI in the 1970s, says that Highview Power have one of the sensible solutions to large scale energy storage.
Multi-Turbine Windcatcher Secures More Funding
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Norway’s Wind Catching Systems AS, the developer of the Windcatcher floating offshore wind technology, has secured a pre-project grant of NOK 9.3 million (USD 0.9 Million) from ENOVA.
The Windcatcher certainly looks impressive on the home page of the Wind Catching Systems AS web site.
This image is of the over-station development at Moorgate station.
If this structure is strong enough to hold up an eight floor building, surely a system can be designed to hold up a number of small wind turbines.
But will it work well in practice or is it just something that looks good in a visualisation?
Note that aerodynamics and fluid flow are difficult subjects to model on a computer, as I say from experience of getting nowhere, when I tried to mathematically model a plastic extruder at ICI in the early 1970s.
But I did successfully invest in two guys, who went on to develop the Respimat inhaler for Boehringer Ingelheim.
So I have had mixed success in dealing with these tricky subjects.
When I look at the Windcatcher, I think there’s a fifty-percent chance, that it will be a success and a lot depends on the investors.
I do wish the company well and I feel it in my bones, that a couple of weird turbine designs will be runaway successes.
So Many Floating Wind Designs, So Few Test Sites – Norwegian METCentre Sold Out
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
There are currently more than 80 floating wind technology concepts and designs worldwide, and testing even a certain number of these could prove to be an endeavour since there are not many test sites dedicated to floating wind technology in Europe.
It strikes me that we need more test centres.
As UK waters will in the next couple of decades be home to a lot more GW of wind farms, perhaps we should develop a test centre.
I wonder, if South Wales would be the place for a test centre.
- There is a lot of sea, which isn’t cluttered with oil and gas rigs, and wind farms.
- There are a lot of wind farms planned in the area.
- There are at least two good technology universities.
- There are some deep water ports.
- Electricity connections and power generation are good.
- There is good train connections to the rest of England and Wales.
- A train testing centre is being built at Nant Helen. Some tests needed to be done could be the same.
Some innovative designs for wind turbines are also being developed in South Wales.
World’s First Offshore Wind Farm Using 16 MW Turbines Enters Construction In China
The title of this post, is the same as that of this article on the offshoreWIND.biz.
This is the sub-heading.
China Three Gorges Corporation (CTG) has started construction of the second phase of its offshore wind farm Zhangpu Liuao. The project will be both China’s and the world’s first wind farm to comprise 16 MW wind turbines.
I hope the Chinese have done all their calculations, research and testing. The dynamics of large wings are tricky and there are a lot of square law factors involved. I’d always be worried that at a particular wind speed a dangerous vibration will be setup.
How many Chinese engineers have seen videos of Galloping Gertie?
As the video says, no one was injured or killed, when the Tacoma Narrows Bridge fell into the river, but we nearly had a very similar disaster in the UK. I used to work at ICI in Runcorn and at the time, I lived in Liverpool, so every day, I went to work I crossed the Silver Jubilee Bridge twice.
One day, after a party in Cheshire, I even got so drunk, I had to stop the car on the bridge and was sick into the Mersey. It was before C and myself were married and she always claimed she nearly called the marriage off, after the incident.
But have you ever wondered, why that bridge is a through arch bridge rather than a suspension bridge as over the Forth, Hmber and Severn, which were all built around the same time?
Wikipedia has a section, which describes the Planning of the bridge.
The new bridge had to allow the passage of shipping along the Manchester Ship Canal. Many ideas were considered, including a new transporter bridge or a swing bridge. These were considered to be impractical and it was decided that the best solution was a high-level bridge upstream from the railway bridge. This would allow the least obstruction to shipping and would also be at the narrowest crossing point. The first plan for a high-level bridge was a truss bridge with three or five spans, giving an 8 yards (7 m) dual carriageway with a cycle track and footpaths. This was abandoned because it was too expensive, and because one of the piers would be too close to the wall of the ship canal. The next idea was for a suspension bridge with a span of 343 yards (314 m) between the main towers with an 8 yards (7 m) single carriageway and a 2-yard (2 m) footpath. However aerodynamic tests on models of the bridge showed that, while the bridge itself would be stable, the presence of the adjacent railway bridge would cause severe oscillation.
The finally accepted design was for a steel through arch bridge with a 10-yard (9 m) single carriageway. The design of the bridge is similar to that of Sydney Harbour Bridge but differs from it in that the side spans are continuous with the main span rather than being separate from them. This design feature was necessary to avoid the problem of oscillation due to the railway bridge. The main span measures 361 yards (330 m) and each side span is 83 yards (76 m).
But that misses out part of the story that I learned about at ICI.
I developed a very simple piece of electronics for ICI Runcorn’s noise and vibration expert. The equipment allowed the signals from two noise meters to be subtracted. This meant that if they were pointed in different directions, the noise generated by an object or piece of equipment could be determined.
The noise and vibration expert had tremendous respect from his fellow engineers, but his involvement in the design of the Runcorn bridge had elevated him to a legend.
The designers of the suspension bridge, that is detailed in the Wikipedia extract, presented their design to the ICI (Merseyside) Scientific Society.
The noise and vibration expert was at the meeting and questioned the design and said it would collapse due to oscillations caused by the presence of the railway bridge. He advised aerodynamic tests should be done on the bridge.
His back of the fag packet calculations were shown by tests to be correct and the bridge was built as a through arch bridge.
These pictures show the bridge.
They were taken from a train on the railway bridge.
The Anonymous Widower 