When thinking of solar panels, most people picture them installed on rooftops or mounted on ground arrays. But what if roof space is limited or not ideally positioned? An alternative that’s gaining attention is vertical solar installation—mounting solar panels directly on a building’s wall.

Yes, it is entirely possible to install solar panels on a vertical wall, and in some cases, it can be a smart solution. This approach, often referred to as building-integrated photovoltaics (BIPV) or facade solar systems, allows property owners to make use of vertical surfaces for clean energy generation.

How Do Vertical Solar Installations Work?

Solar panels on a wall are mounted using specialized brackets or racking systems that anchor them securely to the structure. These systems are designed to hold the panels at either a fully vertical position or at a slight tilt to improve energy capture and reduce rain and dust buildup.

Wall-mounted panels operate similarly to roof-mounted ones. They connect to inverters, generate electricity, and contribute to the overall energy supply of the building. However, their performance can differ due to the angle of sunlight.

Energy Efficiency of Vertical Panels

Vertical solar panels generally receive less direct sunlight compared to roof-mounted panels, especially in winter months or in areas farther from the equator. But they still generate electricity, especially when facing the correct direction.

In the northern hemisphere, a south-facing wall is ideal. In the southern hemisphere, north-facing walls are preferable. Panels installed vertically may also benefit from reduced soiling and easier maintenance, as they are less likely to accumulate debris and snow.

Applications and Benefits

Wall-mounted solar systems are particularly useful when:

• Roof space is shaded, cluttered, or structurally limited

• Buildings have large, unobstructed exterior walls

• Solar panels are integrated into architectural designs

• Ground installations are restricted due to space or zoning

Apart from energy generation, vertical panels can serve as sunshades, thermal barriers, or aesthetic facade elements. In urban environments, they help maximize energy output from every available surface.

Mounting Systems for Vertical Solar Panels

Mounting panels on a wall requires robust brackets that can handle wind load and structural stress without compromising the building envelope. These brackets must also allow for proper spacing between the wall and panel for ventilation and cable management.

SIC Solar, a company that manufactures and sells PV mounting systems, provides specialized solutions for vertical solar installations. Their mounting brackets are designed to attach securely to building facades while supporting a variety of panel sizes and configurations.

SIC Solar systems are made from high-quality aluminum and stainless steel, ensuring durability in all weather conditions. The company also offers flexible designs that accommodate both framed and frameless modules, and their engineering team can assist with custom bracket designs for unique wall types or architectural requirements.

Vertical solar installations are not just functional—they can also contribute to modern, sustainable building design. With the right planning and mounting systems, walls can become powerful surfaces for generating clean energy.