The efficiency of a turbine varies based on several factors, including wind speed, turbine design, location, and grid integration. Despite these fluctuations. . A wind turbine, often known as a windmill, is a mechanism that harnesses the kinetic energy of wind to power mechanical devices. But, the question is, “how efficient are wind turbines for producing electricity? The. . Alternative energies include 1) renewable power sources (such as solar, tidal, wind, biofuel, hydroelectric, and geothermal) and 2) nonrenewable nuclear power (considered alternative but not renewable because it relies on uranium, a finite resource not easily replenished). As a result, it is a popular choice for both onshore and offshore applications.