How to install photovoltaic vertical and horizontal panels

Should a solar panel be installed horizontal or vertical?

However, it is more efficient to have a consecutive block of solar panels installed using the same orientation— either vertical or horizontal. If there is a break in your roof, or you have room for one more solar panel, then your solar contractor can install the solar panel to fit the space.

Are solar panels horizontal or vertical?

You’ve probably seen some solar systems where the panels are installed in vertical orientation, and others in a horizontal orientation. This might leave you wondering, why are they different and does it matter if solar panels are horizontal or vertical? The orientation of your solar panels doesn’t affect the production of your system.

Can solar panels be installed vertically across a roof?

Solar panels can be installed vertically on a roof. This setup allows for a longer row of solar panels, enabling you to fit more into place while using fewer steel bolts on the roof rafters. However, it's still possible to install solar panels securely in this orientation.

How are solar panels installed on a roof?

Solar panels are mounted to the rafters on your roof using “rails.” Since panels are not as wide as they are tall, it takes fewer rails to install the panels in a vertical orientation than in a horizontal orientation. Less railing means less overall cost!

How do I choose a solar panel orientation?

Aesthetic Preferences: Choose the orientation that best complements the property's look and feel. When deciding between vertical and horizontal orientations for your solar panels, consider factors such as sunlight exposure, roof shape, potential shading, and aesthetics.

Does panel orientation affect the number of solar panels installed?

Panel orientation also has no effect on the number of panels that can be installed. Homeowners have the option to install them using differing orientations, depending on the shape of your roof. However, it is more efficient to have a consecutive block of solar panels installed using the same orientation— either vertical or horizontal.