Investigation and Analysis of Restricted Factors of Development of Offshore Wind Power in Germany

A difficult problem lies in the face of German power operators eager to build offshore wind power equipment to replace nuclear power. When sea piling, the noise emitted has brought disaster to nearby finless porpoises. Criticism from environmental groups has been heard. In addition, the remaining mines in World War II were found in the sea, which caused difficulties in laying cables. The concern that companies have been forced to increase costs may also affect Germany’s “de-nuclearization” plan.

Two major problems hamper the catastrophe caused by the offshore wind power in Germany. “The finless porpoise’s hearing will die if it is damaged. It should be punished by developers who have repeatedly violated the noise restrictions.” Kim Dettloff, Oceanist at the German Society for Nature Conservation, eloquently Indicated.

The finless porpoise is slightly smaller than dolphins and has similar hearing organs. According to Sven Koshinsuki, a local marine biologist consultant, about 230,000 finless porpoises are inhabited in the North Sea and the Baltic Sea. It is said that between 1994 and 2005, the number of Baltic finless dolphins decreased by 60%, leaving only 11,000.

In the construction of offshore wind power equipment, the piles at the bottom of the windmill will make a loud noise in the water when they hit the seabed. Regarding this matter, although the German Federal Shipping and Waterway Bureau set a standard of 750 meters from the construction site to a limit of 160 decibels, few people have complied with it. Koshinsuki said that the noise even reached 245 decibels when piling, which caused great harm to the body of the dolphins.

The German government set a goal of building 25 million kilowatts of offshore wind power generation equipment by the end of 30 years. According to Bloomberg estimates, the operating expenses will reach 39.2 billion euros by the end of the 20th. It is expected that the required area will reach 8 times that of New York City, USA. In the WWF Wadden Sea Office in Germany, it is expected that “it is expected to bring about a profound impact on nature and it is necessary to take measures to solve this problem. ”

Developers are starting to take solutions. Large-scale power companies such as Germany’s E.ON and RWE invested 3.9 million euros in the wind power business completed in the Baltic Sea in a month, and implemented noise reduction measures. RWE's wind power base "Norutoze-OST" built in the eastern part of the North Sea also installed large hoses around the base of the 48 windmills. It is said that this can absorb more than 12,000 noise generated during piling.

In general, operators want to set a good foundation as soon as possible, but they must bear the pressure of the regulatory agencies and nature conservation groups to protect the finless porpoise. "No operators have the patience to destroy the environment," said Otto von Stroflov of the University of Technology and Technology in Hamburg, Germany.

Cost increase is also a headache for some people. Some people think that the low return on coastal wind power business, while the cost increase, is a headache for developers. According to Hugh mud Technique Lubeck of Germany, developers need to increase the investment of wind power equipment construction by 0.5% to reduce noise. According to Bloomberg data, the development cost of wind power equipment in Germany now requires 4.2 million to 4.4 million Euros per 1,000 kilowatts, while the United Kingdom generally costs 3.7 million to 4 million Euros. One of the expenditures is to prevent noise.

Another problem that wind power operators need to face is the unexploded ordnance sleeping on the sea floor. In the “Rifugato” project of wind power generation equipment at the North Sea built by Germany’s large-scale power company EWE, Tenet TSO, a Dutch-based department responsible for connecting the transmission grids, discovered a number of mines that remained in World War II during preparation for cable laying. In December last year, a report prepared and published with the support of the German government showed that about 1,600,000 tons of mines, TNT bombs, and chemical-containing artillery shells are expected to remain in the German Sea, on the seabed of the North Sea and the Baltic Sea.

The fiber cutter is used to cut fiber as thin as hair. After hundreds of times of amplification, the cut fiber is observed to be flat before discharging the fuse.
The material of fiber is quartz, so the material of fiber cutting knife blade is required.
Adaptive fiber: single or multi-core quartz naked fiber;

Suitable for fiber cladding :100-250um diameter.

SMK-30

Fiber Optic Cleaver

Fiber Optic Cleaver, Optical Fiber Cleaver, Fiber Optic Cutter, Hardware Networking Tools

NINGBO YULIANG TELECOM MUNICATIONS EQUIPMENT CO.,LTD. , https://www.yltelecom.com

Posted on