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Umesh Kumar, Pravesh Kumar Singh

Kenya faces problems in increasing the share of wind energy in the state’s electricity mix. It is difficult to add more Horizontal Axis Wind Turbines (HAWTs) to wind farms because of the negative impacts they create for each other when placed too close together. It is also increasingly expensive to permit, buy land, build roads and provide transmission lines for new wind farms. Further, large HAWTs pose threats to migratory and native bird populations, resulting in additional costs and difficulties in obtaining permits and developing environmental impact mitigation plans. The use of Vertical Axis Wind Turbines (VAWTs) as a solution to these problems has not yet been investigated, due to lack utility scale VAWTS and data on their impacts to neighboring HAWTs and wildlife. Before wind farm owners will allow the large-scale deployment of VAWTs near HAWTs, field research must demonstrate that wakes produced by VAWTs have neutral or positive effects on the energy production and maintenance of nearby HAWTs. Before permits can be obtained for installation of VAWTs in most Kenya wind farms, research must demonstrate that the turbines do not negatively impact bird populations. The technical and economic feasibility of Vertical Axis Wind Turbines [VAWTs] has also been largly unexplored to dae, but the inhere nt advantages of VAWT suggests a transformational opportunity to allow access to vast wind resource sites such as off the Eastcoast of Kenya and north part of Kenya.