Odyssey Land Development Group. Think Green - Green Energy.
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HORIZONTAL ACCESS WIND TURBINES:   

HAWT Advantages

Odyssey Land Development Group Bullet Variable blade pitch, which gives the turbine blades the optimum angle of attack. Allowing the angle of attack to be remotely adjusted gives greater control, so the turbine collects the maximum amount of wind energy for the time of day and season.

Odyssey Land Development Group Bullet The tall tower base allows access to stronger wind in sites with wind shear. In some wind shear sites, every ten meters up, the wind speed can increase by 20% and the power output by 34%.

Odyssey Land Development Group Bullet High efficiency, since the blades always move perpendicularly to the wind, receiving power through the whole rotation. In contrast, all vertical axis wind turbines, and most proposed airborne wind turbine designs, involve various types of reciprocating actions, requiring airfoil surfaces to backtrack against the wind for part of the cycle. Backtracking against the wind leads to inherently lower efficiency.

HAWT Disadvantages

Odyssey Land Development Group Bullet The tall towers and blades up to 90 meters long are difficult to transport. Transportation can reach 20% of equipment costs.

Odyssey Land Development Group Bullet Tall HAWTs are difficult to install, needing very tall and expensive cranes and skilled operators.

Odyssey Land Development Group Bullet Massive tower construction is required to support the heavy blades, gearbox, and generator.

Odyssey Land Development Group Bullet Reflections from tall HAWTs may affect side lobes of radar installations creating signal clutter, although filtering can suppress it.

Odyssey Land Development Group Bullet Their height makes them obtrusively visible across large areas, disrupting the appearance of the landscape and sometimes creating local opposition.

Odyssey Land Development Group Bullet Downwind variants suffer from fatigue and structural failure caused by turbulence when a blade passes through the tower's wind shadow (for this reason, the majority of HAWTs use an upwind design, with the rotor facing the wind in front of the tower).

Odyssey Land Development Group Bullet HAWTs require an additional yaw control mechanism to turn the blades toward the wind.

Odyssey Green and Renewable Energy Company

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