frame structural difference between conventional pv vs. bipv module
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Frame Structural Differences
Conventional PV vs. BIPV Module
Presented by: I Made W. Nungrat. (PV Technologist)
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Conventional PV ModuleStructure
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Conventional PV ModuleMounting Style A - Direct-Mount (Bolts)
Modules must be mounted using the mounting holes located on the rear side of the long frame parts using appropriate size stainless steel bolts, nuts, and washers.
Courtesy: ldksolar
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Conventional PV ModuleMounting Style B – Top-Down Clamps
Modules must be fastened using clamps applied to the top side of the long frame parts. A clamp holds two modules except for the clamps at the beginning and end of a module row.
Courtesy: ldksolar
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Conventional PV ModuleMounting Style C – Frame Insertion
Module frames can be supported by insertion systems where the module frame rests inside of a channel. The channels are required to support the entire length of either both of the long frames or both of the short frames.
Courtesy: ldksolar
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Conventional PV ModuleOther Mounting Style
CLAMPING TO THE FRAME FLANGE AT THE CORNERS
CENTER CLAMPS
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G2G BIPV ModuleStructure
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G2G BIPV ModuleMounting Style A – Visible Frame Installation
BIPV Modules
Clamp Frame
Sealant
Bearing
Main Structure
Washers Module outline is distinct and regular Courtesy: yingli solar
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G2G BIPV ModuleMounting Style B – Invisible Frame Installation
BIPV Modules
Main Structure
Sealant Contact glue is placed between modules instead of clamp arm and screw to ensure a smooth surface
Courtesy: yingli solar
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G2G BIPV ModuleMounting Style C – Spot Strut Installation
Main Structure
Clamp Frame
BIPV ModulesClamp Arm
Sealant
Usage of this method simplifies the installation process, improves the safety and creates an elegant appearance.
Courtesy: yingli solar
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Main Differences
Conventional PV Modules• Using metal frame on each module• Non-direct attachment between module and main structure (bolts via
frame)
G2G BIPV Modules• Frameless• Commonly using sealant as glue and dampers• Direct attachment between modules and main structures
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Mounting MethodConventional & BIPV
In order to install PV modules on top of the roof, we need to find suitable frame structure to support the modules.