The Baltic Sea is one of the best wind farm sites in the world and specialized ships for building offshore wind farms may be built in Polish shipyards.
It doesn’t pay to build offshore windmills standing at the bottom of the sea in too deep water (until recently they were built in water up to 20 m deep and no more than 20 km from the shore) and in places where there is little demand for electricity. The Baltic Sea is great for building wind farms, because it is shallow, has low salinity (lower salt content provides windmills more durability) and its shores are economically developed and inhabited by millions of people.
In addition, the Baltic Sea and the North Sea are places where the wind is the strongest and most frequent in the whole Europe, and thus have the largest wind power per 1 km2.
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