New Study Shows How North Sea Offshore Wind Can Yield More While Costing Less
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
A less dense development of offshore wind in the German Exclusive Economic Zone (EEZ) of the North Sea, and a relocation of capacities to neighboring countries can both increase the yield from offshore wind and reduce costs, a new study by the Fraunhofer Institute for Wind Energy Systems (Fraunhofer IWES) has shown.
These two paragraphs add more detail.
With Germany’s current expansion target of 70 gigawatts (GW) by 2045 and the planned land use to date, the utilization of offshore wind power will fall far short of its technical potential, the study has shown.
While the North Sea is among the windiest regions worldwide, shading effects would significantly reduce the achievable yield of up to 5,000 full-load hours. Furthermore, the close proximity of wind farms reduces each other’s wind output.
It appears from the text in this must read report, that the Germans might develop as much as 20 GW in neighbouring countries.
In Will A Large Green German Elephant Get Involved In The Clacton By-Election?, I talked about a 2 GW cluster of wind farms being developed by RWE and their partners.
- 1.1 GW – Five Estuaries
- 504 MW – North Falls
- 353 MW – Galloper
Note:
- In total they are around 2 GW.
- The wind farms are around 30 km. offshore.
- RWE are a respected German company, who are one of the UK’s largest electricity generators.
I believe that RWE and their partners could receive a lot of opposition to an overhead power line across Essex to connect these wind farms to the National Grid, and 2 GW would not be a small set of pylons.
Would it be a better value project to bring this energy to Germany, either as green electricity or green hydrogen, than connect it to the UK’s National Grid?
Consider.
- A cable between the three wind farms and the nearest part of Germany would be about 300 miles.
- The longest undersea interconnect is the Viking Line between England and Denmark, which is 475 miles long.
- RWE have been building a big offshore electrolyser in The Netherlands called H2OpZee and I believe that similar technology could be used at Clacton.
- 2 GW of energy would be ten percent of the energy, that Germany needs.
- I’m sure Rachel from Accounts would be happy for any payments for the energy.
It looks to me that energy links between the UK and Germany will only get more numerous and stronger as the years roll by.
North Sea Exclusive Economic Zones
Out of curiosity, I searched for a map and found this on Wikipedia.
Note.
- Yellow is France.
- Mauve is Belgium, who drew the short straw.
- Light Blue is The Netherlands.
- Black is Germany, who despite their large land area, don’t have as much sea as the UK.
- Red is Denmark.
- Dark Blue is Norway.
- Green is The UK.
Didn’t we do well!
But Belgium and Germany miss out badly, when it comes for virgin sea to fill with wind farms.
Energy Links To Belgium
The UK has developed or is developing two grid links to Belgium.
- Nemo Link – a 1.0 GW interconnector.
- Nautilus – A 1.7 GW offshore hybrid asset.
National Grid is a partner with their Belgian equivalent ; Elia in both.
Energy Links To Germany
Germany is developing.
- NeuConnect – a 1.4 GW interconnector.
- GriffinLink – a hybrid offshore link.
- AquaVentus
I believe there will be more links.
A Video Description Of Princess Elisabeth Island
This web site is the web site of Belgium’s Princess Elisabeth energy island.
This YouTube video describes the Princess Elisabeth island.
From the video the following can be determined.
- The Princess Elisabeth island is 45 km. from the Belgian coast.
- An interconnector to the UK could come ashore at the site of the decommissioned Bradwell nuclear power station.
- An interconnector to Denmark could come ashore in Southern Jutland, just North of where the Viking Link connects to Denmark.
This map clipped from the video shows the location of Princess Elisabeth island.
Note.
- Belgium is shown in red.
- Istend is in the middle of the straight Belgian coast.
- The red dot between Belgium and the UK is Princess Elisabeth island.
- The interconnector to the UK could feasibly go to Bradwell.
- The interconnector to Denmark could go via a wind farm, which would explain the kink.
- Could the kink point be at the Dogger Bank, where there could be 20 GW of wind farms?
Has Belgium made a bid to dominate European energy distribution?
This Google Map shows the Belgian and English coast lines.
Note.
- Bradwell is on the coast to the North-East of Southend-on-Sea.
- As it used to be a nuclear power station site it still has an electricity connection to the grid.
- The Princess Elisabeth island is 45 km. from the Belgian coast at Ostend.
I estimate that a Bradwell and Princess Elisabeth island interconnector would be about 150 miles.
The Belgians Go Large
This press release from Elia Group is entitled Elia Presents Its Plans For An Energy Island, Which Will Be Called The Princess Elisabeth Island.
These two paragraphs outline the project.
In the presence of federal ministers Tinne Van der Straeten (Energy) and Vincent Van Quickenborne (North Sea), system operator Elia has presented its draft plans for what will be the world’s first artificial energy island.
The Princess Elisabeth Island will be located almost 45 km off the Belgian coast and will serve as the link between the offshore wind farms in the second offshore wind zone (which will have a maximum capacity of 3.5 GW) and its onshore high-voltage grid. The energy island will also be the first building block of a European offshore electricity grid that will serve as a central hub for new interconnectors with the UK and Denmark. The island is an innovative tour de force that once again puts Belgium on the map as a pioneer in offshore energy.
Note, that Princess Elisabeth is the heir apparent to the Belgian throne.
I have some thoughts.
Will The Wind Turbines Float Or Have Fixed Foundations?
Consider.
- 3.5 GW of wind farms will probably need around 220 wind turbines.
- Most of the large wind farms in the seas around the UK, that are below about 50 miles from the shore are on fixed foundations.
- The seas around East Anglia and Belgium are probably fairly similar.
I suspect that using today’s technology, the turbines will have fixed foundations.
But floats with two or more turbines , that generate more electricity per square kilometre may be developed.
Will Hydrogen Be Generated On The Island?
This could happen and I don’t see why not.
Tankers could even dock on the island to transport the hydrogen.
Could The Island Service Floating Wind Turbines?
All that is needed, is sufficient depth of water and a large crane.
It is a possibility!
Will There Be A UK Interconnector To Princess Elisabeth Island?
The press release says this.
The energy island will also be the first building block of a European offshore electricity grid that will serve as a central hub for new interconnectors with the UK and Denmark.
There could be interconnectors all over the North Sea linking wind farms and energy islands to the UK, France, Belgium, The Netherlands, Germany, Denmark and Norway.
We’d all be in it together.
Conclusion
This is a very ambitious project.
The Anonymous Widower 