EVERYDAY SCIENCE

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ENVIRONMENTAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Offshore wind turbines are useful because
A
they do not need gearboxes
B
they are easier to build than wind turbines on land
C
average wind speeds are greater over water than land
D
they do not require a generator to produce electricity
Explanation: 

Detailed explanation-1: -Offshore wind farms generate electricity from wind blowing across the sea. They are considered more efficient than onshore wind farms, thanks to the higher speed of winds, greater consistency and lack of physical interference that the land or human-made objects can present.

Detailed explanation-2: -Offshore wind speeds are typically faster than on land, and even small increases in speed can produce large increases in energy generation. As such, fewer turbines are needed to produce the same amount of energy as an onshore turbine.

Detailed explanation-3: -Larger rotor diameters allow wind turbines to sweep more area, capture more wind, and produce more electricity. A turbine with longer blades will be able to capture more of the available wind than shorter blades-even in areas with relatively less wind.

Detailed explanation-4: -Onshore wind power refers to turbines that are located on land and use wind to generate electricity. Offshore wind power is when wind over open water (typically the ocean) is used to generate electricity.

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