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Prototype of the E 138 EP3 E2Enercon has installed the prototype of the E-138 EP3 E2 wind turbine the Janneby site in Schleswig-Holstein, Germany. The E2’s nominal power is increased from 3.5 to 4.2MW compared to the E-138 EP3 E1. The developers anticipate an additional yield of approximately 1.5 million kWh every year, equating to an increase of 10%.
 
The rotor head is fully plug-and-play enabled. The rotor head is fully assembled and tested at the factory and then shipped as one delivery unit to the construction site. When the wind turbine is installed, the rotor head can be hoisted by the crane without requiring any turning operations or complex additional equipment. The company also developped a new installation method for the rotor blades. The new method does not require a ballast arm, and the rotor head of the wind turbine is turned using just the installation crane.
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