may include a pivoting or articulation system 50 that allows the turbine 40 to rotate from the normal working position as illustrated in fig5 to the position with the axis on the vertical as illustrated in fig6 thus allowing a 90 degree inclination around the pivoting axle this pivoting system 50 may be activated using conventional hydraulic or mechanical systems such as hydraulic cylinders or gears activated by electric motors in an embodiment the pivoting system 50 may be used during transport and or installation of the wind turbine system 10 when the height of wind turbine system 10 is not sufficient to prevent the blades 42 from touching the water or ground the pivoting system 50 can also be used for maintenance such as to repair the wind turbine system components wind turbine blades 42 or for decommissioning of the wind turbine system 10 in an embodiment and as illustrated in fig1 9 the extendable tower 30 can be made of a number of concentric cylinders 32 that might be extended or activated by various methods in an embodiment extendable tower 30 may include two or three concentric cylinders 32 but it may also include more depending on the desired configuration in an embodiment to facilitate the extension of the cylinders water may be injected in the annulus of the cylinders which may be dry and empty during transport in an alternative configuration the cylinder may be extended or activated by emptying the cylinder annulus which is initially flooded in any activating method the concentric cylinders are extended vertically and may further be connected structurally e g by welding or connecting and securing sections mechanically using bolts or other methods in order to.