16.5 kW Triangle Solar Mounting Project in Chile
A rooftop fixed-tilt mounting project developed for 60 × 275 W PV modules using a 20° foldable triangle structure, aluminum rails, module clamps and mechanically attached L-foot roof connections.
Chile Rooftop Triangle Mounting Configuration
The project documents define a 60-module rooftop PV package using 275 W polycrystalline modules and a repeatable 6 × 1 triangle-table geometry at 20° tilt.
Repeatable 6 × 1 Fixed-Tilt Tables
The engineering drawing shows six modules in one row on a fixed 20° support frame. The table length is approximately 6.4 m, with repeated triangle supports beneath the rail system.
Wide rooftop project view showing the array scale, roof context and repeated triangle mounting rows.
What the engineering plan establishes
- Modules per table: 6
- Layout: 6 × 1
- Fixed tilt: 20°
- Table length: ~6.4 m
- Support concept: Triangle frame
- Assembly: Pre-assembled angle aluminum
20° Foldable Support for a Defined Module Tilt
Instead of following the existing roof slope alone, the foldable triangle frame creates a defined 20° module angle. The engineering drawing explicitly notes pre-assembly using angle aluminum.
Side view showing the foldable triangle frame, 20° module angle and aluminum rail support.
Why a pre-assembled triangle matters
A foldable triangle frame can reduce the number of loose structural pieces that installers must assemble on the roof. It also helps keep the designed tilt repeatable from table to table.
The triangle should still be treated as part of the complete load path, not as a stand-alone accessory. Roof attachment, rail support, clamps and the supporting roof structure need to work together.
From the PV Module to the Roof Structure
The project uses a mechanically attached roof-mounting architecture. The foldable tripod sets the tilt, while L feet and self-tapping roof fasteners form the primary interface with the supporting roof.
Mechanically attached roof interface
The project package documents L feet with self-tapping screws. The L-foot assembly is specified with AL6005-T5 aluminum, SUS304 stainless steel and EPDM.
Rail and module connection
The mounting package includes aluminum roof rails, rail splice components, mid clamps and end clamps for framed PV modules.
Mounting Hardware, Modules and PV Cable
The project documents show a complete delivery scope combining the rooftop triangle mounting structure with the PV modules and DC cable required for the system.
Mounting Scope
- Roof mounting rails
- Rail splice / union components
- 20° foldable triangle supports
- Mid clamps and end clamps
- L feet with self-tapping roof fasteners
- AL6005-T5 / SUS304 / EPDM documented for the roof-attachment assembly
PV Package
- 60 × 275 W polycrystalline PV modules
- 4 mm² red PV cable
- 4 mm² black PV cable
- Project delivery documentation prepared for Chile
What This Chile Project Shows
PV Capacity and Structural Geometry Must Match
The 60-module electrical package and 6 × 1 structural table concept need to be coordinated so the rail, clamp and triangle arrangement remains consistent across the roof.
Pre-Assembly Can Reduce Roof Work
The engineering plan calls for pre-assembled angle-aluminum triangle supports, reducing the amount of loose-frame assembly required on the rooftop.
The Roof Attachment Still Governs the Final Load Path
A 20° triangle frame creates the module angle, but project suitability still depends on how the L feet, fasteners and roof structure receive the resulting wind, gravity and service loads.
What Should Be Checked for a Similar Triangle Roof Project?
| Project Input | Why It Matters |
|---|---|
| Module datasheet and frame | Defines module dimensions, clamp zone and rail/support geometry. |
| Roof profile and structural support | Determines the correct L-foot or other primary attachment method. |
| Required tilt | Sets triangle geometry and affects wind, spacing and array height. |
| Wind and snow requirements | Influence rail span, triangle spacing, fasteners and the supporting roof structure. |
| Roof waterproofing detail | Needs to remain compatible with the selected mechanical attachment. |
| Array layout | Determines the number of tables, rails, clamps and roof attachment points. |
About This Chile 16.5 kW Triangle Solar Mounting Project
How is the 16.5 kW capacity calculated?
The project documents list 60 PV modules rated at 275 W each. 60 × 275 W = 16,500 W, or 16.5 kW nominal DC capacity.
What tilt angle was used?
The engineering drawing and foldable tripod specification both identify a 20° fixed tilt.
What module table is shown in the plan?
The engineering plan shows a 6 × 1 table with six modules arranged in one row on repeated triangle supports.
Is this a ballasted system?
No. The documented package includes L feet with self-tapping roof fasteners, so this reference is treated as a mechanically attached triangle roof-mounting system.
Why use foldable triangle supports?
They create a repeatable fixed tilt and can reduce on-site frame assembly when supplied pre-assembled.
Can the same configuration be reused on a new project?
Not automatically. A new project should be checked against its module, roof structure, attachment condition, required tilt, wind and snow loads, corrosion environment and local structural requirements.
Need a Triangle Solar Mounting Configuration?
Send the module datasheet, roof profile and structure, preferred tilt, array layout, wind and snow requirements, and available roof drawings or photos. We can use them to match the triangle frame, rail, clamp and roof-attachment configuration.