Perimeter block device and methods
Perimeter blocks for a PV array comprising fastener or component holes for anchoring the array bonding the array and protecting array cabling. Perimeter blocks provide a favorable aerodynamic shape to help deflect incoming wind, to channel rainwater over the array, and to protect the edge of the array. PV arrays having PV modules and perimeter blocks contacting native topography or a smoothed or substantially flat portion of the ground in an array and holding the array together and down are also disclosed.
1 . A utility-scale PV array comprising:
a group of PV modules on or contacting the ground in an array;
a plurality of perimeter blocks that have
a bottom that contacts the ground,
an upper side,
a horizontal portion,
an angled portion,
a module alignment hole,
wherein at least one of the plurality of perimeter blocks impedes water flow under the perimeter block and directs wind and water across the array;
and
a connecting cable disposed in the module alignment hole and passing through or along a PV module of the group of PV modules.
2 . The array of claim 1 , further comprising a plurality of connecting cables wherein at least one connecting cable passes through or along a plurality of the PV modules.
3 . The array of claim 2 , wherein the perimeter block is a freestanding body.
4 . The array of claim 3 , wherein the array is smoothed.
5 . The array of claim 4 further comprising a corner perimeter block.
6 . The array of claim 5 , wherein the perimeter block impedes water flow between itself and an adjacent perimeter block.
7 . The array of claim 1 , wherein one or more connecting cables pass through clips disposed between PV modules.
8 . A utility-scale PV array comprising:
a plurality of PV modules on or contacting the ground in an array,
perimeter blocks adjacent the PV modules that contact the ground, wherein at least one perimeter block has an upper side, a horizontal portion, and an angled portion and directs wind and water across the array,
the perimeter blocks comprise 1-30 corner perimeter blocks,
and
a connecting cable that passes through a module alignment hole in the perimeter blocks and that passes through at least some of the plurality of PV modules.
9 . The array of claim 8 , wherein at least one of the perimeter blocks impedes water flow under the perimeter block.
10 . The array of claim 9 , wherein one or more connecting cables pass through the plurality of PV modules.
11 . The array of claim 10 , wherein the perimeter blocks further comprise a bonding hole.
12 . The array of claim 9 , wherein one or more connecting cables pass through clips disposed between PV modules.
13 . The array of claim 8 , wherein the array is smoothed.
14 . A utility-scale PV assembly comprising:
PV modules on or contacting the ground in an array;
a structure adjacent the array that comprises a plurality of boundary blocks that direct wind and water across the array;
and
a connecting cable that passes through a module alignment hole in the boundary blocks and that passes through some of the PV modules in the assembly of PV modules.
15 . The assembly of claim 14 , wherein at least one of the boundary blocks impedes water flow under the boundary block.
16 . The assembly of claim 15 , wherein the boundary blocks comprise an upper side, a horizontal portion, and an angled portion.
17 . The assembly of claim 16 , wherein the structure further comprises corner boundary blocks.
18 . The assembly of claim 17 , wherein a plurality of the boundary blocks further comprises a bonding hole.
19 . The assembly of claim 18 , wherein the array is smoothed.
20 . The assembly of claim 14 , wherein
the structure further comprises corner boundary blocks
the boundary blocks comprise an upper side, a horizontal portion, an angled portion, and a bonding hole
at least one of the boundary blocks impedes water flow under the boundary block
and
the array is smoothed.