Wall section for a wind turbine tower and wind turbine tower

A wind turbine tower, comprising:

• a tower wall portion;
• and
• a wall section comprising
• an inner edge surrounding an opening of the wall section, the inner edge including an inner top edge and an inner bottom edge;
• an outer edge including a top edge portion, a bottom edge portion, a first side edge portion and a second side edge portion;
• and
• a plurality of protrusions each protruding in a thickness direction of the wall section and extending transverse to the thickness direction, the plurality of protrusion includes a first protrusion and a second protrusion,
• wherein the first protrusion extends longitudinally and is arranged between the top edge portion and the inner to edge such that the first protrusion is above the opening,
• wherein the second protrusion extends longitudinally and is arranged between the bottom edge portion and the inner bottom edge such that the second protrusion is below the opening, and
• wherein each of the plurality of protrusions is adapted to compensate for a reduction of a stiffness in the wall section due to the opening in the wall section,
• wherein the wall section is connected to the tower wall portion at least at a portion of an outer edge of the wall section.