Structure following roof mounted photovoltaic system
An adjustable photovoltaic panel mounting system that allows for variations in roofs and roof elements, while still maintaining a rigid and secure assembly. The specific location for supporting feet and structural elements of the mounting system may be varied to allow for variations in roof features and different panel configurations. The mounting mechanisms are adjustable in both a North/South and a East/West direction to provide for maximum layout flexibility.
1. A photovoltaic panel mounting system comprising:
a panel assembly comprising:
at least one photovoltaic panel;
a first spar connected to a first edge of the panel; and
a second spar oriented parallel to the first spar and connected to a second edge of the panel; and
wherein each spar comprises a slot along a length of the spar;
a mounting sub-structure comprising:
a plurality of feet assemblies; and
a plurality of longitudinal beams, each longitudinal beam oriented perpendicular to the first and second spars, each longitudinal beam connecting at least two feet together in a column, the feet assemblies and longitudinal beams forming at least two separate columns;
wherein each longitudinal beam comprises a slot along a length of the longitudinal beam;
a plurality of yokes comprising:
a bottom channel, the bottom channel configured to slide along a longitudinal beam in a first direction, but grasp and hold the longitudinal beam in a second direction;
a plurality of pivot blocks connected to the first spar to connect the first edge of the panel assembly to corresponding yokes on the longitudinal beams, the pivot blocks formed to slide along the slot in a spar in order to align the pivot blocks to a corresponding yoke on a longitudinal beam; and
a plurality of angle struts connected to the second spar to connect the second edge of the panel assembly to corresponding yokes on the longitudinal beams, each angle strut connecting to the second spar with a sliding attachment mechanism.
2. The photovoltaic panel mounting system of claim 1 , further comprising:
a lateral link connecting a first panel assembly to a second panel assembly.
3. The photovoltaic panel mounting system of claim 1 , further comprising:
at least one wind deflector on one edge of the panel assembly.
4. The photovoltaic panel mounting system of claim 1 , further comprising:
at least two panel assemblies mounted to the sub-structure.
5. The photovoltaic panel mounting system of claim 4 , further comprising:
at least one foot assembly connected to a first spar of one panel assembly and a second spar of a second panel assembly at a position intermediate to two columns of longitudinal beams.
6. The photovoltaic panel mounting system of claim 1 , further comprising a plurality of “t-bolt” fasteners, wherein the slot in each spar is a “t-shaped” slot configured to receive the “t-bolt” fasteners, wherein each “t-bolt” fastener slides along the slot to allow for adjustable positioning of the panel assemblies and sub-structure.
7. The photovoltaic panel mounting system of claim 6 , wherein the slot in each longitudinal beam is a “t-shaped” slot configured to receive a “t-bolt” fastener, to secure a yoke to a longitudinal beam.
8. The photovoltaic panel mounting system of claim 1 , wherein each foot assembly comprises:
an elastomeric foot; and
two foot brackets having mounting slots;
wherein the two foot brackets attach two longitudinal beams together, and the mounting slots allow for variations in alignment of the longitudinal beams.
9. The photovoltaic panel mounting system of claim 1 , wherein the angle strut and pivot blocks are connected to the yokes with pinned connections to allow for quick panel tilt up.
10. The photovoltaic panel mounting system of claim 1 , wherein the angle strut is connected to the spar with an angle strut bracket having a lip.
11. The photovoltaic panel mounting system of claim 1 , wherein the pivot block is shaped with an open slot to engage a pin in a yoke, allowing the panel assembly to rotate into position for assembly to the sub-structure.
12. The photovoltaic panel mounting system of claim 1 , further comprising at least one ballast assembly attached to a longitudinal beam.
13. The photovoltaic panel mounting system of claim 1 , further comprising at least one roof connector assembly attached to a longitudinal beam to secure the mounting system to a roof.
14. A photovoltaic panel mounting system comprising:
a plurality of panel assemblies, each panel assembly comprising:
a plurality of photovoltaic panels;
a first spar connected to a first edge of each panel; and
a second spar connected to a second edge of each panel;
wherein each spar comprises a t-slot along a length of the spar;
a mounting sub-structure comprising:
a plurality of feet assemblies; and
a plurality of longitudinal beams, each longitudinal beam connecting at least two feet together in a column, the feet assemblies and longitudinal beams forming at least two separate columns;
wherein each longitudinal beam comprises a t-slot along a length of the longitudinal beam;
a plurality of yokes comprising:
a bottom channel, the bottom channel configured to slide along a longitudinal beam in a first direction, but grasp and hold the longitudinal beam in a second direction; and
a t-bolt to secure the yoke to the longitudinal beam, a head of the t-bolt sliding in the t-slot of a longitudinal beam;
a plurality of pivot blocks connected to the t-slot in the first spar with a t-bolt, in order to connect the first edge of the panel assembly to corresponding yokes on the longitudinal beams, the pivot blocks formed to slide along the slot in a spar in order to align the pivot blocks to a corresponding yoke on a longitudinal beam; and
a plurality of angle struts connected to the t-slot in the second spar with a t-bolt, each angle strut connects the second edge of the panel assembly to corresponding yokes on the longitudinal beams.
15. The photovoltaic panel mounting system of claim 14 , further comprising:
a lateral link connecting a first panel assembly to a second panel assembly.
16. The photovoltaic panel mounting system of claim 14 , further comprising:
at least one wind deflector on one edge of the panel assembly.
17. The photovoltaic panel mounting system of claim 14 , further comprising:
at least one foot assembly connected to a first spar of one panel assembly and a second spar of a second panel assembly at a position intermediate to two columns of longitudinal beams.
18. The photovoltaic panel mounting system of claim 14 , wherein each foot assembly comprises:
an elastomeric foot; and
two foot brackets having mounting slots;
wherein the two foot brackets attach two longitudinal beams together, and the mounting slots allow for variations in alignment of the longitudinal beams.
19. The photovoltaic panel mounting system of claim 14 , wherein the angle strut and pivot blocks are connected to the yokes with pinned connections to allow for quick panel tilt up.
20. The photovoltaic panel mounting system of claim 14 , wherein the angle strut is connected to the spar with an angle strut bracket having a lip.
21. The photovoltaic panel mounting system of claim 14 , wherein the pivot block is shaped with an open slot to engage a pin in a yoke, allowing the panel assembly to rotate into position for assembly to the sub-structure.
22. The photovoltaic panel mounting system of claim 14 , further comprising at least one ballast assembly attached to a longitudinal beam.
23. The photovoltaic panel mounting system of claim 14 , further comprising at least one roof connector assembly attached to a longitudinal beam to secure the mounting system to a roof.