Since wind resource varies from on location to the other, and due
to the complex terrain of Hong Kong wind resource charactertics may
vary greatly even for locations in close promixity to each other,
therefore for any serious wind power project, on-site short-term wind
measurement, long-term wind resource prediction, wind flow modelling
and energy yield prediction will need to be conducted (refer to Large
Wind Turbines - Resource Potential section for details).
If more than one wind turbine is to be installed, each turbine will
become an "obstacle" to the other turbines when the wind
blows in certain direction, causing the "wake effect". Energy
yield prediction of a whole wind farm taking into account the wake
effect can be done using computer software.
Choose the right turbine based on the local wind characteristics.
Wind resource in Hong Kong is moderate, use of variable speed design
will provide better energy yield as compared to fixed speed design.
As Hong Kong is subject to typhoons, use the strongest wind turbine
available in the market. For wind turbines certified to standard IEC
classes, the IEC Class 1 machines can withstand the highest extreme
loads (designed to withstand 70m/s 3-sec gust). Also, turbulence intensity
of the site will also affect the choice of wind turbine.
If a wind turbine is to be developed by an organization other than
an electic utility company, the utility company should be consulted
concerning the grid connection requirements.
Take note of the requirements on the access road (width, turning
radius) to the site, because of the need to transport the long turbine
blades and heavy parts to the site, and also to transport the hoisting
crane to the site.
Take note of overhead line or electric cable routing requirements,
from the wind turbine site to the nearest grid connection point.
Take note of Aircraft Height Restriction requirements.
Take note of Environmental Impact Assessment requirements.
Take note of land acquisition requirements.
Take note of aviation marking and warning light requirements.
Take note of radars and other civil aviation and marine navigation