SWCC Certified Turbines - Medium: Compare Ratings

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SWCC certificates and summary reports are accessible below for certified medium turbines.

NOTE: For a listing of certified small wind turbines, see SWCC Certified Turbines-Small table. For a full listing of SWCC Applicants, including turbines with Conditional Temporary Certification and Pending Applications, and past milestone dates for Certified Turbines, see Applicant Turbines Status table.

Applicant Turbine SWCC
Certification Type1
Reference Annual Energy2 Reference Sound Pressure Level3 Reference Power4 Peak
Certification Number
Endurance Wind Power Inc.E-3120IEC 61400-11 & IEC 61400-12-1
117 MWh42.5 dB(A)56.8 kW @ 11.0 m/s67.5 kW @ 17.0 m/s


Expired 4/17/2016

GhrepowerFD21-50IEC 61400-11 & IEC 61400-12-1
128 MWh49.7 dB(A)61.2 kW @ 11.0 m/s65.6 kW @ 13.0 m/s

3/26/15 (P)

4/30/15 (A)

Renewal Pending


1 "Certification Type" designates to which Standard(s) the applicant is pursuing SWCC certification: IEC 61400-1 (Design), IEC 61400-12-1 (Power Performance) and/or IEC 61400-11 (Acoustics).

2 "Reference Annual Energy" is 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).

3 "Reference Sound Pressure Level" is the sound pressure level (dBA) not exceeded by the wind turbine 95% of the time at a distance of 60 meters from the rotor with an average wind speed of 5 m/s (11.2 mph).

4 "Reference Power" is the highest point on the certified power curve at or below 11 m/s (24.6 mph). Manufacturers may still describe or name their wind turbine models using a nominal power (e.g. 50 kW E-3120).

5 "Peak Power" is the highest point on the certified power curve.