Window unit for a building or structure

A window unit for a building or structure, the window unit comprising:

• a first panel having an area transparent for at least a portion of visible light, the first panel comprising first and second component panel portions, the first component panel portion having a first major surface which is parallel to a first major surface of the second component panel portion, the first major surface of the second component panel portion having a surface area smaller than an area of the first major surface of the first component panel portion, whereby the first and second component panel portions are arranged such that a projection of the first component panel portion along a surface normal of the first component panel portion extends beyond a circumference of the second component panel portion;
• a second panel having an area transparent for at least a portion of visible light;
• at least one series of solar cells positioned between the first and second component panel portions;
• a spacer spacing the first panel from the second panel, the spacer surrounding a space between the first and second panels, a first edge area of the first panel extending beyond a projection of the circumference of the spacer in a direction of a surface normal of the first panel;
• a housing provided between the first and second panels, the housing incorporating at least one electric or electronic element which is indirectly or directly electrically coupled to at least one other electrical component positioned within the window unit;
• wherein the housing is positioned at or near the spacer and at least partially within a projection of the circumference of the first edge area of the first panel in the direction of the surface normal of the first panel;
• and
• wherein the first major surface of the second component panel portion faces the spacer, and wherein an electrical lead electrically connecting the at least one series of solar cells to one or more of the at least one electric or electronic element incorporated in the housing is directable around an edge of the second component panel portion.