The answer ranges from hundreds of thousands to several million dollars per blade, depending on size, materials, and application. But the real cost story doesn't end there.
Hybridizing solar and wind power sources (min wind speed 4-6m/s) with storage batteries to replace periods when there is no sun or wind is a practical method of power generation. This is known as a wind solar hybrid system.
On average, therefore, wind turbines do not generate near their capacity. Industry estimates project an annual output of 30-40%, but real-world experience shows that annual outputs of 15-30% of capacity are more typical. With a 25% capacity factor, a 2-MW turbine would produce in.
According to The United States Department of Energy, most modern land-based wind turbines have blades of over 170 feet (52 meters). This means that their total rotor diameter is longer than a football field.
In general, a wind turbine system includes the turbine and blades, a charge controller, a battery bank (for off-grid systems), and an inverter. Correctly matching these components is critical for system efficiency.