Doubly fed electrical generators are similar to AC electrical generators, but have additional features which allow them to run at speeds slightly above or below their natural synchronous speed. This is useful for large variable speed wind turbines, because wind speed can change.
The small wind turbine market, valued at $117. 3 million in 2025, is projected to experience robust growth, exhibiting a Compound Annual Growth Rate (CAGR) of 18% from 2025 to 2033. This expansion is fueled by several key drivers.
Wind generators convert wind into electricity, offering a renewable energy source. Initial investment ranges from $4,000 to $15,000. Compared to grid and solar energy, wind generation can be more economical.
The United States Wind Turbine Database (USWTDB) provides the locations of land-based and offshore wind turbines in the United States, corresponding wind project information, and turbine technical specifications.
Wind turbines use blades to collect the wind's kinetic energy. Wind flows over the blades creating lift (similar to the effect on airplane wings), which causes the blades to turn.