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Kaushik Patowary
Mar 1, 2021
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The Ruhr valley in North Rhine-Westphalia was once Germany’s industrial heartland producing coal and steel, the two very essential raw materials of industrialization itself. Coal was mined here for at least four hundred years, usually from shallow drift mines along the Ruhr river. But with the start of the Industrial Revolution in the 19th century, the demand for coal and steel increased and the deeper-lying coal seams were reached out for the first time. Within a matter of decades, Ruhr’s coal output skyrocketed from 2 million tons per year in 1850 to more than a hundred million tons at the end of the 19th century. Likewise, steel production rose from a mere 11,500 tons per year to 8 million during the same period.
What are offshore wind turbines and how are they different from onshore ones?
Offshore wind turbines, as the name suggests, are wind turbines constructed and located in bodies of water, such as the ocean or river estuaries. While the term is usually used to describe wind farms at sea, offshore wind farms can be located fairly close to shore.
There is no technical limit to the depth of water they can be built in; however, while it is theoretically possible to build in any depth, the maximum is probably closer to
1,970 feet (600m), practically speaking.
Offshore wind farm.
The methods used to construct them and anchor them will vary, however, for obvious reasons.