Wind speed typically increases with height, as it is less affected by trees and surrounding topography. Putting wind turbines on top of buildings—especially tall buildings—should allow them to take advantage.
[pdf] Modern wind turbines fall into two basic groups: the horizontal-axis variety and the vertical axis design (Demirbas, 2006). Turbines that rotate around a horizontal axis are most common. Vertical axis turbines are less frequently used (Drewry and Georgiou, 2007).
[pdf] For the wind energy industry, wind direction sensors help optimize the performance of wind turbines. Knowing the wind direction helps operators turn the turbines to face the wind. This maximizes their power generation efficiency.
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