Frequently Asked Questions

 

What are the advantages of the new Sharp OnEnergy™ solar system?
The OnEnergy system uses a simplified, flexible mounting system to improve both the speed of installation and aesthetics. Each system can be easily configured online and shipped to you all at once. This innovative new solution for residential and light commercial installations uses a shared rail system that requires 30% less rail than conventional systems. Subtle features make the installation easier and more ergonomic. For instance, when installing the system all bolts are easily accessible. No need to lean over the modules and stretch to tighten that last bolt.

How is grounding simplified with the OnEnergy solar system?
Full UL testing as a complete system means that row-by-row integrated grounding is standard. Modules are bonded to the rails when installed, so fewer ground lugs and wire are needed during installation. UL-listed single point integrated grounding is also available by purchasing the optional grounding clip, further reducing installation time and complexity.

What is the OnEnergy system's track record?
The OnEnergy system is one of the most widely used installations in the world today. In Japan alone, there are 200 megawatts created from the 50,000 OnEnergy system installations. In fact, the Sharp Kameyama manufacturing plant utilizes the OnEnergy system, making the 5.2 megawatt system the largest solar rooftop installation in the world.

What types of roofs are compatible with OnEnergy?
The OnEnergy system can now be installed on just about any roof including asphalt shingles, curved Spanish tiles and flat concrete tiles.

How high off the roof is the OnEnergy solar system?
The OnEnergy solar system is installed with the plane of the roof. From the top of the module to the roof deck the system is less than 5” off the roof. From the bottom of the module to the roof deck the height varies with the type of mount you choose, low profile mount for asphalt, flashed mount for asphalt, or tile attachment. The low-profile OnEnergy system rests 2 inches off the asphalt roof, 3 inches with flashing or tile attachment.

What do I do on uneven roof surfaces?
Sharp has optional shims that allow you to level the array up to 2 inches of uneven roof.
Shim Technical Bulletin

What about wire management?
Sharp provides optional wire management parts that make installation even easier and more reliable. Steel wire clips hold module cables to the module frame and off the roof, while cable support bars keep intermodule wiring tucked up and out of the way under the rail.
Wire Management Technical Bulletin

What is covered under the warranty?
Sharp backs our solar modules with a 25-year limited warranty, and the racking system in OnEnergy has a 10-year limited warranty. That is years and years of no worries with a warranty from Sharp, the company that’s been in the solar business for 50 years.

How are roof penetrations sealed?
Adjustable sliders are equipped with butyl sealant pads that instantly create a waterproof seal at all roof penetrations. Installers also use a black silicone caulking for additional protection.

Why is this system made of steel instead of aluminum?
Steel is used in many solar mounting applications including large field arrays and single axis trackers. The OnEnergy system mounting hardware is made of steel because it’s structurally superior to aluminum. Steel is denser, harder and has lower potential for galvanic corrosion. The SuperDyma® coating allows six times more corrosion resistance than galvanized steel and is so effective, it’s used throughout the automotive industry.