The main applications of wind power are the generation of electricity and water pumping (Table 10.1). Except for the installed capacity of wind farms, the other statistics are best estimates, as data are difficult to acquire. Applications for generation of electricity are classified as utility-scale wind farms, small wind turbines (both remote and stand-alone systems), distributed, community, wind–diesel, village power (generally hybrid systems), telecommunications (high-reliability hybrid systems), and street lighting. Some village power systems use only wind power. In some cases, village power includes diesel or gas backup systems. Stand-alone systems generally use batteries for storage.