Japanese Company Takes Part In Spain’s Floating Wind Demonstration Project
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Japan’s Electric Power Development, also known as J-Power, has joined the WHEEL floating offshore wind demonstration project in Spain.
These three paragraphs add more details.
The WHEEL demonstration project is led by the Madrid-headquartered company Esteyco. WHEEL will feature one turbine installed three kilometres off the eastern coast of Gran Canaria, Spain.
Through this project, J-Power aims to acquire knowledge in the manufacturing, assembly, installation, and operation of floating offshore wind power, contributing to the development of floating offshore wind projects in Japan and abroad, the company said.
A floating offshore wind turbine, with a capacity of 6.17 MW, will be constructed and tested using WHEEL, which combines the advantages of barge-type foundations and spar-type foundations.
There is a visualisation of the WHEEL project in the linked article.
Conclusion
I like the concept of WHEEL.
In Norwegians Developing Monopile Foundation For 100-Metre Depths, I write about my involvement with a company called Balaena Structures in the 1970s, who were trying to develop a reusable oil and gas platform. I have a feeling, that WHEEL and the Balaena have dynamic and floating properties in common.
Ryanair Flies Into Sahara on Sea (And Africa’s Oldest Conflict)
The title of this post, is the same as that of this article in The Times.
This is the sub-heading.
Chieftains fighting for a strip of land claimed by Morocco are threatening to step up attacks as the tourist industry grows
These are the first three paragraphs.
Towards the end of the flight on Ryanair’s new route to Dakhla a vast expanse of apparently pristine desert coastline unfurls below.
But this land is nowhere near as tranquil as it looks from above. Instead the Irish airline’s choice of destination has flown the company into the heart of Africa’s longest-running conflict.
These direct flights from Madrid and Lanzarote take its planes to the coastal town in Western Sahara, a tract of desert the size of Britain that tribal chieftains and three countries have struggled to control through the centuries.
This is a Google Map showing the location of Western Sahara with respect to the Canary Islands.
Note.
- The islands off the recognisable coast of North West Africa are the Canary Islands.
- Lanzarote is the Southermostof the two North-Eastern islands.
- Western Sahara is to the South-East of the Canary Islands.
- Dakhla is on the Africa coast at the Southern edge of the map.
The map will be enlarged if you click on it.
I have my thoughts on this article.
Western Sahara And Coeliac Disease
I have a feeling that this area has one of the highest levels of coeliac disease in the world.
- It all started some years ago, when they had a terrible famine, so the US donated a lot of wheat to alleviate the famine.
- But the people of Western Sahara don’t grow wheat and their bodily systems can’t cope with gluten.
- This gave the people a lot of coeliac disease, which can be passed on genetically.
A similar process went on during the slave trade, where the slavers fed their captives on bread made from wheat and water. Consequently, many of the slaves suffered from various problems and that could be why many died on the crossing. These days there is coeliac genes among the Caribbean and American black population that has been passed down through the generations.
After their first actions, it only looks like Trummkopf and his sidekick are going to make matters worse, after their destruction of US Aid.
X1 Wind’s Floating Prototype Delivers First Power Offshore Canary Islands
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
X1 Wind has announced that its floating offshore wind turbine prototype delivered first power to PLOCAN’s smart grid in the Canary Islands, Spain.
The article is based on this news item from X1 Wind, which is entitled X1 Wind’s X30 Floating Wind Prototype Delivers First kWh, which starts with these two paragraphs.
X1 Wind has announced today (MARCH 07) that its X30 floating wind prototype, installed in the Canary Islands, successfully produced its first kWh.
The milestone marks the world’s only floating wind platform currently installed with a TLP mooring system, which dramatically reduces the environmental footprint and improves compatibility with other sea uses. It further heralds Spain’s first floating wind prototype to export electricity via a subsea cable.
Note.
- TLP is short for tension leg platform, which is described in this Wikipedia entry.
- The TLP Wikipedia entry contains a section, which describes their use with wind turbines.
- TLPs have been in use for over forty years, with the first use in the Hutton field in the North Sea.
- TLPs work well for water depths of between 300 and 1,500 metres.
I also suspect there’s a lot of experience from the oil and gas industry around the world about how to deploy TLPs.
The X1 Wind news item also has this paragraph.
The novel X30 platform is equipped with a specially adapted V29 Vestas turbine and ABB power converter. Another key design feature, developed through the EU-backed PivotBuoy Project, combines advantages of SPM and TLP mooring systems. The proprietary SPM design enables the floater to ‘weathervane’ passively and maximise energy yields, with an electrical swivel ensuring electricity transfer without cable twisting. The TLP mooring system also dramatically reduces the seabed footprint, compared to traditional designs proposing catenary mooring lines, minimizing environmental impact while maximizing compatibility with other sea uses, in addition to its suitability to move into deeper waters.
SPM is short for single point mooring, which is described in this Wikipedia entry, where this is the first sentence.
A Single buoy mooring (SrM) (also known as single-point mooring or SPM) is a loading buoy anchored offshore, that serves as a mooring point and interconnect for tankers loading or offloading gas or liquid products. SPMs are the link between geostatic subsea manifold connections and weathervaning tankers. They are capable of handling any tonnage ship, even very large crude carriers (VLCC) where no alternative facility is available.
Note.
- The use of the weathervane in both paragraphs.
- If an SPM can handle a VLCC, it surely can handle a well-designed floating structure with a wind turbine mounted on top.
- I suspect that an SPM used for a wind turbine will be much simpler than one used to load or unload a gas or oil tanker.
As with TLPs, I also suspect there’s a lot of experience from the oil and gas industry, from around the world about how to deploy SPMs.
It looks to me, that X1 Wind have used the proven attributes of SPMs and TLPs to create a simple mooring for a wind turbine, that is designed to align itself with the wind.
X1 Wind Are Open With Their Technology
Today’s news item from X1 Wind also links to two other useful documents.
- X1 Wind Adaptation Of A Vestas V29 Turbine To Downwind Configuration
- X1 Wind Successfully Installs Floating Wind Platform In Spain
They are certainly open with their information.
The news item, also includes this video.
Thoughts
These are some thoughts.
Capacity Factor
The capacity factor of this wind turbine could be an interesting figure.
As the turbine constantly will turn to be downwind, this should maximise the amount of electricity produced over a period of time.
Tetrahedrons
The design is effectively a tetrahedron.
Alexander Graham Bell knew a lot about the properties of tetrahedrons and invented the tetrahedral kite.
This document details Bell’s involvement with tetrahedrons and says this.
Bell found the tetrahedron to have a very good strength to weight ratio.
Put more simply this means that an object is structurally very strong but at the same time very lightweight.
So X1 Wind’s design is probably extremely strong for its weight.
Large Turbines
X1 Wind’s prototype uses a wind turbine of only 225 KW.
Manufacturers are building 15 or 16 MW turbines now and talking of 20 MW in the next few years.
Given the strength of the tetrahedron, I wonder, if it will be possible to build a PivotBuoy, that is capable of hosting a 20 MW wind turbine?
Conclusion
Although it appears radical, it uses proven technology to generate power in an innovative way.
In some ways the thinking behind the design of this floating technology, is a bit like that of Issigonis in his design for the first Mini, where he took proven technology and arranged it differently to perform better.
Widowhood Is A Lonely Dark Club
And a dark club, that no-one asked if you wanted to join.
After forty years of a generally happy and vibrant relation, especially when it came like a thunderbolt from nowhere, makes it no easier.
It is lonely, but I do have the freedom to do what I want.
I could just throw my clothes on the floor each night and live on beer and baked beans. Which I don’t!
Today, I’m off to see Ipswich lose at Sheffield Wedneswday.
I’m then off tomorrow for four days in the Canaries! Nothing to do with Norfolk!
But both trips will be alone!
Surely, there must be widow, out there who feels like I do!
The Anonymous Widower 