System comprising a plurality of superstructures (10a, ...) installed in a section (A) comprising at least one circulation area, each including structural elements (1a, ...) carrying a plurality of renewable energy means (5a, ...; 6a, ...) defining a respective energy envelope (2a, ...), said energy envelopes (2a, ...) at least substantially visible from, or in the proximity, or projecting at least partially above a circulation area, and disposed at a regular or variable distance apart, preferentially at a reduced distance apart relative to their respective length, more preferentially directly adjacent, along a circulation direction (x 1 , x 2 ) of a proximal circulation area, whereby said plurality of superstructures (10a, ...) is installed successively along the longitudinal direction (x) of said circulation area, and in that the overall construction of said superstructures (10a, ...) varies within said section (A), at least along said longitudinal direction (x) thereof, whereby each superstructure (10a, ...) presents one energy envelope (2a, ...) disposed in one elevated level (H 1 ), and at least the relative position or spatial orientation, at least in relation to a proximal circulation area or to a neighbouring energy envelope (2b, ...), is defined as a function of factors including the prevailing local solar and/ or wind directions, and the areas of direct light incident upon the circulation level (Ho) of the circulation area, including respective size, relative orientation, light intensity and glare, characterized in that several superstructures (10a, ...) vary within said section (A) in relation to any other superstructure (10a, ...) within said section (A), including as a result of variation at least of the construction materials of respective energy envelopes (2a, ...) comprising renewable energy means of different materials having different light transmission properties resulting in a variation of light and shadows being projected by each, including as perceived by people circulating along a circulation direction. whereby said plurality of superstructures (10a, ...) is installed successively along the longitudinal direction (x) of said circulation area, and in that the overall construction of said superstructures (10a, ...) varies within said section (A), at least along said longitudinal direction (x) thereof, whereby each superstructure (10a, ...) presents one energy envelope (2a, ...) disposed in one elevated level (H 1 ), and at least the relative position or spatial orientation, at least in relation to a proximal circulation area or to a neighbouring energy envelope (2b, ...), is defined as a function of factors including the prevailing local solar and/ or wind directions, and the areas of direct light incident upon the circulation level (Ho) of the circulation area, including respective size, relative orientation, light intensity and glare, characterized in that several superstructures (10a, ...) vary within said section (A) in relation to any other superstructure (10a, ...) within said section (A), including as a result of variation at least of the construction materials of respective energy envelopes (2a, ...) comprising renewable energy means of different materials having different light transmission properties resulting in a variation of light and shadows being projected by each, including as perceived by people circulating along a circulation direction. <EOS>