Wind turbine blade with a deicing system

A wind turbine blade (10) having a suction side shell portion (38) and a pressure side shell portion (36), each shell portion extending between a leading edge (18) of the wind turbine blade and a trailing edge (20) of the wind turbine blade, the wind turbine blade extending along a longitudinal axis (L) from a root end (30) of the wind turbine blade to a tip end (15) of the wind turbine blade, the wind turbine blade comprising:

• a leading-edge heating element (19) extending along at least a portion of the leading edge of the wind turbine blade, the leading-edge heating element being configured for deicing a corresponding portion of an exterior surface of the leading edge,
• a first plurality of heating strips (401-405, 801-804), each heating strip of the first plurality of heating strips extending in a substantially spanwise direction of the wind turbine blade, the first plurality of heating strips forming part of a first shell portion of the wind turbine blade, the first plurality of heating strips being embedded inside the first shell portion or positioned such that they are exposed to an inside of the wind turbine blade, wherein the first shell portion is the pressure side shell portion or the suction side shell portion, the first plurality of heating strips being spaced apart from one another and from the leading-edge heating strip in a chordwise direction, each heating strip having a first end and a second end, the first end being closer to the tip end than the second end, each heating strip comprising carbon-fibre yarn and/or tow material (1001, 1101), and
• a power source configured to provide electrical power to each of the first plurality of heating strips in order to generate heating in said each strip, said heating being generated by the carbon-fibre yarn and/or tow material.