WindEnercon 4.3MW onshore wind turbine prototype obtains TÜV Nord type certificateThe E-138 EP3 E3 turbine’s loads, power curve, and sound power levels were successfully measured at a testing site in Staphorst, Netherlands.Enercon E-138 EP3 onshore wind turbine.Photo: EnerconRichard KesslerNorth American Editor, Recharge