An integrated building photovoltaic apparatus for closing an opening on a building facade and generating electricity from a solar radiation which pass through the opening,



includes at least two panes that are at least partially transparent and joined to each other by an interposed spacer to form an internal chamber therebetween;
a blind arranged inside the internal chamber and having movable photovoltaic slats to vary the amount of the solar radiation passing through the opening; and
connection elements, configured to pull or push the photovoltaic slats. Each slat has a photovoltaic sheet with interconnection grooves which define thin film solar cells monolithically connected in series.




The solar cells include at least two coupling thin film solar cells (40′), each one



having a through hole and
a close-pattern isolation groove surrounding the through hole to define an inactive area of the coupling single thin film solar cell surrounding the through hole.