A wind turbine tower is made of reinforced concrete with fiber rovings as reinforcements, wherein the fiber rovings are basalt fiber rovings. In one embodiment, the basalt fiber rovings may include, for example, a bundle of multiple parallel oriented basalt fibers forming a thin rope. In one embodiment, the tower is produced in a slip forming process or slip molding process, wherein the basalt fiber rovings are embedded in the concrete during the slip forming process.

Provided is a wind turbine blade, with a generally hollow blade body including half shells and webs, with each web including flanges with the first and second webs being supported via respective reinforcement structures relative to the respective half shell, which reinforcement structures are arranged between an outer and an inner layer of the upper and lower half shell of the shells and extend in the lengthwise direction of the blade, wherein the first and second reinforcement structures each include at least one stack composed of several pultruded composite strips including carbon fibers with the strips being fixed in the resin, wherein at least one stiffening element extending parallel to the reinforcement structures over at least a part of their length comprising at least one stack composed of several glass fiber layers infused with resin is arranged between the reinforcement structures.

The present disclosure provides a wind turbine blade with an improved trailing edge structure and a manufacturing method thereof. The wind turbine blade includes an upper shell, a lower shell, and a trailing edge, where a trailing edge bonding region enclosed by the upper shell, the lower shell and the trailing edge is filled with composite materials, and the composite materials are discontinuous in an airfoil chordwise direction. The manufacturing method includes the following steps: S1: manufacturing reinforcements with a same cross-sectional shape as the trailing edge filling region for composite materials; and S2: integrally molding the reinforcements, a fiber fabric and the upper shell, providing the lower shell, combining the upper shell and the lower shell, and performing heating for curing and molding. The discontinuous filling structure reduces usages of the adhesive and the reinforcements of the composite materials. The small web can improve a strength of the trailing edge region, and reduce a bonding width of the trailing edge. Therefore, the present disclosure realizes a light weight of the wind turbine blade.

A leading-edge protector element for protecting a leading-edge of a wind turbine blade is provided. The leading-edge protector element includes a film layer and a rubber layer, and is provided on a coiled-up roll. The leading-edge protector element has a thickness between a first edge, a second edge, a third edge, and a fourth edge. The thickness decreases along a transverse direction towards the third edge and towards the fourth edge. The leading-edge protector element for protecting a leading-edge of a wind turbine blade may alternatively only include a rubber layer and also be provided on a coiled-up roll.