SunRail SR3 Bifacial™
SunRail SR3 Bifacial Flat Roof Solar PV Racking System
Max Snow Loads
Max Wind Loads
PV Panel Orientation
Hydrid (ballasted & Anchored)
Dead Loads on roof (Ballasted)
Dead Loads on roof (Anchored)
PV Panel height from roof
Roof Type Compatibility
Typical Bifacial Gains Observed
Designed to boost performance of Bifacial PVs
New 2021 optimized aluminum skeleton uses less aluminum and is lower cost. Opsun's Sunrail SR3 racking is so strong, it does not need a wind deflector. High tilt and high elevation possible, extra long interrow distance possible. All rails on the edge of the PVs, not under them. The Opsun SunRail SR3 Bifacial™ can be adapted to maximize the amount of light the backside of the panels receive. Optimal for fully anchored system, for maximum irradiation of the backside of bifacial PVs.
Freedom of design
Opsun SunRail SR3 Bifacial™ is a versatile platform, not a fixed product : we can design a rack at any tilt, any height, any interrow distance, with any PV module, framed or frameless, landscape or portrait. No wind deflector! It is faster to install, solar panels operate at a cooler temperature, and the open design allows for easy roof access, for maintenance.
MESH™ Technology Next-gen Engineering
Opsun's unique MESH™ engineering gives us a detailed understanding of the forces applied to the racking. For our customers, it means less ballasts, a lower costs and a much more solid and durable solution. Our experts will support your project, offer expert advices on how to get maximum performance from bifacial PVs, help optimize layout, tilt angle and panels elevation from roof. We can find solutions to most construction challenges, and design custom solution for almost any building, of any shape and height.
Great for High Rise Buildings
Fewer ballasts and anchors per PV
Better Panel Protection
Perfectly Safe for the roof
Full Aluminum Design
Fully Adjustable System On-Site
Highest Standard for Engineering & Support
Our engineers use only the safest methods of calculation, to assure maximum solidity and durability of the structures. We have proprietary, recent wind tunnel tests with Western University, and we design using the latest Building Codes (ASCE-7-16, NBCC 2016, IBC 2018), as well as SEAOC PV2 notions of array size versus roof size to account for extraordinary vortices. Minimal deflection allowed on rails, and finite element analysis done with high-end 3D engineering software. Each zone ballast & anchors calculated individually. We find solutions to each unique challenge, and we react quickly if unforeseen events happen during construction (such as unmarked drains, roof equipments obstruction and last minute changes).
Project-Specific Building Permit Plans & P.Eng stamp with each project
Custom, project-specific building permit plans, stamped by a local P. Eng., are provided for each job, describing step-by-step where each component goes, on the exact project site, with markups, details and explanations custom to each project's specific difficulties.
Documents & Specifications
OPSUN Total Engineeringtm Support
Opsun's racking is not a single product : it is instead a large library of rails, components and configurations that we can adapt to match any client's requirements.
Full engineering Support
Opsun experts takes care of all the mechanical aspects of your solar PV project and we deliver detailed, project-specific set of engineering plans to help accelerate installation time.
Opsun is your solution finder to a wide array of challenges, such as limited roof capacity, directly attached or hybrid (both ballasted & anchored) systems.
Opsun On-Site Support allows your installation team to benefit from the instructions and supervision of an expert from Opsun's team, with 15 years of experience.