ABOUT THIS BOOKSmall wind turbines can contribute substantially to both a low-carbon energy system, as well as to the autarky and resilience of rural or remote communities and facilities. They can be deployed on building roofs as well as on the ground, and are a useful complement to photovoltaic systems, because they can generate power overnight or in cloudy weather. A range of technologies and designs are available, and suitability depends on the situation, so systematic modelling combined with collection of experience are necessary in making successful, efficient and cost-effective selection decisions.