Abstract: A method for assembling a modular wind turbine rotor blade, includes aligning a first blade module and a second blade module such that a first receptacle of the first blade module and a second receptacle of the second blade module are co-axial; and forming a detachable mechanical connection between a first inlay of the first blade module and a second inlay of the second blade module using a threaded fastener that extends into the first receptacle and into the second receptacle.

Abstract: A method for assembling a modular wind turbine rotor blade, includes aligning a first blade module and a second blade module such that a first receptacle of the first blade module and a second receptacle of the second blade module are co-axial; and forming a detachable mechanical connection between a first inlay of the first blade module and a second inlay of the second blade module using a threaded fastener that extends into the first receptacle and into the second receptacle.

Abstract: A blade module of a modular rotor blade comprising a hollow fiber composite body which extends along a longitudinal blade axis and at least one inlay located at or near a longitudinal end of the fiber composite body is provided. The inlay includes a receptacle which is adapted to receive a threaded fastener and an anchoring portion anchored to the fiber composite body. Further, a modular wind turbine rotor blade which includes at least two blade modules and a method for assembling a modular wind turbine rotor blade are provided.

Abstract: A rotor blade for use in a wind energy system is disclosed. The rotor blade includes a rotor blade body comprising a tip; a down conductor extending along the rotor blade body; a conductive part including a conductive part body attached to the rotor blade body and connected to the down conductor, and an extension extending outward from the conductive part body and protruding out of the tip; a lightning receptor having a cavity for slidably receiving the extension; and a fastener removably fastening the lightning receptor to the extension.

Abstract: A blade module of a modular rotor blade comprising a hollow fiber composite body which extends along a longitudinal blade axis and at least one inlay located at or near a longitudinal end of the fiber composite body is provided. The inlay includes a receptacle which is adapted to receive a threaded fastener and an anchoring portion anchored to the fiber composite body. Further, a modular wind turbine rotor blade which includes at least two blade modules and a method for assembling a modular wind turbine rotor blade are provided.

Abstract: A rotor blade for use in a wind energy system is provided with the rotor blade having a rotor blade body comprising a rotor blade body tip; a rotor blade body cavity; and a lightning protection unit. The lightning protection unit includes a conductive part that is connected to a down conductor and positioned within the rotor blade body cavity close or at the rotor blade body tip, the conductive part having an extension protruding out of the rotor blade body for receiving a receptor. According to another aspect of the invention, a wind energy system is provided with at least one of such a rotor blade.