Library filed under Offshore Wind from Europe
The damaged turbine at the Alpha Ventus offshore wind farm is set to be repaired with a replacement nacelle.
The damage at the offshore wind farm, "Alpha Ventus", located about 45 kilometers from Borkum, is considerably more serious than initially known. At the beginning of April not only did the plastic covering crash 90 meters into the sea, but half of the nacelle fell off as well. Experts are now investigating whether it is a single incident or possibly serial damage. More than 120 turbines of this type are installed in the North Sea.
The Scottish division of the Royal Society for the Protection of Birds (RSPB) has hit out against a study published today on the risk to seabirds through collision with offshore wind turbines, calling the findings a “very optimistic interpretation of data”.
A rear part of a nacelle panel on one of the Adwen M5000 (AD 5-116) wind turbines installed on the Alpha Ventus wind farm in the German North Sea has broken off and fell into the sea, the operator of the wind farm reports. The accident happened on Friday, 06 April.
The energy firm behind one of the world’s biggest offshore wind farms has scrapped plans to build large electricity plants in the Norfolk countryside. Vattenfall, which wants to build two wind farms around 50 kilometres off the east Norfolk coast, said today it will use more advanced technology which will mean a cable corridor it hopes to dig across the Norfolk countryside will be narrower. It also means no relay stations will be needed.
The new report prepared by economics professor Gordon Hughes, a former advisor to World Bank, Dr Capell Aris, a fellow of the IET, and Dr John Constable of the Global Warming Policy Forum, explains how the broad assumption that offshore wind prices are falling is not valid. Through a detailed statistical analysis of the data, covering 86 wind farms, the authors found that capital cost of offshore wind (£/MWh installed) is actually rising as a consequence of companies moving into deeper and deeper waters. The summary of the report is provided below. The full report can be downloaded from this page.
The document claims that ‘it has been widely assumed that the underlying costs of offshore wind are falling and that the CfD prices indicate a sudden paradigm for the technology’. Yet, the report points to statistical analysis of the data, covering 86 wind farms, which suggests that the capital cost of offshore wind (£/MWh installed) is not in actual fact falling, but actually rising as a consequence of companies moving into deeper and deeper waters.
German wind developer Wpd has filed a complaint to Germany’s constitutional court against the Wind Energy at Sea Act (WindSeeG) after its far-offshore project Kaikas in the North Sea was excluded from future offshore wind tenders without compensation to the developer.
Up to 11 years of building work could be needed to bring wind farm cables ashore in Norfolk - sparking a call for businesses to be compensated.
The English Supreme Court is due to hear an appeal on the long-running dispute in connection with the Robin Rigg Offshore Wind Farm. ...At issue is whether E.ON (the employer) or Højgaard (the contractor) must bear the approximate €26 million cost of remedying failed grouted connections between monopiles and transition pieces at Robin Rigg.
Yesterday planning consent for the floating development was granted and announced by Holyrood’s minister for Business, Innovation and Energy, Paul Wheelhouse MSP. But some local residents fear the enormous turbines could spoil the picturesque views from Stonehaven and the nearby Dunnottar Castle.
It remains unclear if offshore wind can be a steady moneymaker without government support, which besides tax credits and minimum rates can include guaranteed access to power grids. “It should be the ambition of everybody to not have subsidies,” Ms. Bosman of Shell said.
”Parliament has made it clear that Sweden’s ambitions are to improve its defense. Hanöbukten is one of the strategically most important defense areas Sweden has. The government has considered this issue carefully and have concluded that in this case it is not possible to combine the defense business with wind turbines.”
SWEDEN: The area is considered a strategic training area for the armed forces and the Government has decided that in this case the planned wind power operation cannot be combined with the Armed Forces' activities.
Longitude Engineering, a specialist marine engineering subsidiary of the LOC Group, has developed an innovative analysis and modelling process to understand why large windfarm monopiles oscillate in smaller wave heights.
This important research identified that migrating raptor species tend to be attracted to offshore wind turbines and that the risk of colliding with wind turbines at sea is much greater than previously assumed. The abstract and resulting discussion of the paper are provided below. The full paper can be downloaded by clinking the links on this page.
The Technology and Construction Court in London has ruled that cracking discovered on some of the 140 monopiles built by Shanghai Zhenhua Heavy Industries Ltd (ZPMC) for the Greater Gabbard offshore wind farm ”was largely a result of various failures by ZPMC to maintain correct preheat temperature of the welds to the monopiles.”
This paper argues that the methods and data used when estimating effects of offshore wind turbines on seabird population rates and the potential impacts on seabird populations are grossly inadequate. As a result, Environmental Impact Assessments cannot solely be relied on to report risks. The conclusions cited in the paper are provided below. The full paper can be accessed by clicking the links on this page.
The delay follows the decision by Theresa May to abolish the energy department and fold it into a new Business Energy and Industrial Strategy department after she became prime minister following the Brexit vote.