Notes - Chapter 15 Summary

The following notes are taken from Wind Turbine Technology by Ahmad Hemami.

• It is important to know the possible effects on the environment
• main reason for offshore wind farms are environmental concerns
• Turbines
• causes sound pollution, characterized by frequency
• Infrasound is low frequency, not audible by humans
• turbine is far enough that we cannot hear it, it does not have adverse sound effects
• Obstructs View
• Modern Turbines also constructed for aesthetics to eliminate view complaints
• Flashing is the cyclic reflection of sunshine on turbine blades
• Flickering is the cyclic moving shadow cast by turbine blades
• Birds and Bats can be slain by turbine
• less than deaths caused by house cats so not often complained
• A wind farm must not be developed where the ecosystem of natural habitants can be disrupted
• Wind Farms can also interfere with communications depends on the location of turbines and transmitters
• Offshore wind turbines about 30-40 miles out to sea
• Electricity distribution requires cables to be installed under the seabed
• HVDC High Voltage Direct Current preferable for offshore wind farms but more expensive
• shallow water can be fixed to seabed, deep water must be floating

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