How do small turbine costs compare to the costs of other alternatives?
Small wind turbines (ranging in size from 250 watts to 50 kW) are often the least expensive source of power for remote sites that are not connected to the utility system.A study by the Congressional Office of Technology Assessment found wind to be cheaper for meeting remote loads (loads not connected to a utility system) than diesel generators, photovoltaics, or utility transmission line extensions. (Micro-hydro also was found to be less expensive in many locations.)Hybrid systems — wind/photovoltaic, wind/diesel, and other combinations — can often provide the most efficient and cost-effective option for rural electrification. Photovoltaic (PV) solar cells, which convert sunlight directly into electricity — are often used to supplement wind power since PV tends to operate best in low wind months. Diesel generators or batteries can be used for backup power and to maintain power production during low wind seasons.One study of an Arctic community with annual average wind speeds of 15 m
