What do the SWCC ratings mean?

For small wind turbines, SWCC consumer labels report AWEA Rated Annual Energy, the calculated total energy that would be produced during a one-year period with an average wind speed of 5 m/s (11.2 mph); AWEA Rated Sound Level, the sound pressure level (dBA) not exceeded by the wind turbine 95% of time at a distance of 60 meters from rotor with a hub height annual average wind speed of 5 m/s (11.2 mph); and AWEA Rated Power, the wind turbine’s power output at 11 m/s (24.6 mph).

For medium wind turbines, SWCC reports the wind turbine’s power output at 11 m/s (24.6 mph).

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