Wind Energy

Wind power is a mature technology that has been harnessed by humans for millennia, offering numerous environmental advantages over the use of fossil fuels. This chapter on wind power focuses on horizontal axis technology, covering the technical operating principles, basic design of turbine blades, an analysis of wind as an energy resource, and aspects of turbine siting and wake effects in the design of on- and offshore wind-power plants. Additionally, the utilization of wind atlases is described, along with methodologies for estimating the capacity factor, defined as the proportion of a turbine’s theoretical annual production potential that can be captured in practice. The rapid growth in installed wind power is leading to a range of land and sea use impacts, underscoring the need for a more comprehensive understanding of the subsequent adverse effects on natural ecosystems and wildlife, as well as on local communities. It is possible to avoid and mitigate these negative impacts through the implementation of appropriate measures. The sustainable expansion of renewable energy production is built on the foundations of understanding and addressing these potentially harmful impacts. As with solar energy (Chap. 4), site selection and siting are crucial aspects for the sustainable large-scale implementation of wind power. Wind turbines require considerable spacing to reduce the wake effect, in contrast to solar panels which can be installed much closer together. The area required for installation and supporting infrastructure, such as maintenance roads, transmission lines, and grid connections, results in environmental changes that may lead to habitat loss, degradation, and fragmentation. Avoiding and minimizing environmental impacts, including impacts on wildlife, is also a matter of social acceptability. Indeed, concerns over nature have been identified as a growing source of opposition to and barrier for renewable energy development.