Sproat Lake, Vancouver Island, BC

Portrait or landscape?

Portrait or landscape?

Which is the Easiest Method of Installing Solar Panels?

  • Introduction
  • Foot Mounts
  • Rail Requirements

Introduction

Over the years, we’ve installed numerous solar panels in various orientations, sometimes in portrait, other times in landscape, and occasionally a combination of both when roof space was limited. While both methods have their place, I find that portrait orientation is generally the standard and most cost-effective approach. However, there are situations where landscape orientation is necessary, particularly when fitting panels into areas that wouldn’t otherwise accommodate them or for other specific reasons.

In most cases, I know that portrait orientation tends to be less expensive, which is why I usually prefer it. Of course, the final decision often comes down to the customer’s needs. Interestingly, not all customers are primarily concerned with cost. I’ve encountered many who prioritize having the panels installed in a particular way or who want the highest quality available system and not concerned of panel orientation, regardless of the price. So, while cost is often a significant factor, it’s not always the deciding one.

While both orientations have their advantages, the decision often hinges on factors like roof dimensions, available space, and the overall design of the solar panel system.

One important aspect that varies significantly between portrait and landscape installations is the number of rails required to support the panels. Portrait orientation typically requires fewer rails, making it a more straightforward and cost-effective option in many cases. On the other hand, landscape orientation, while sometimes better suited for wider roofs, generally necessitates more rails to ensure stability, which can increase both material costs and installation time.

Understanding these differences is crucial for optimizing the installation process and achieving the best possible outcome for a solar energy project.

Foot Mounts

Foot mounts are essential components that secure solar panel rails to various roof types, providing the necessary stability for solar arrays. Whether using L-foot, standoff, or ballasted mounts, they elevate and support the rails, ensuring proper panel alignment and airflow. In both portrait and landscape orientations, the type and number of foot mounts required may vary based on the weight distribution, panel size, and roof structure. Portrait orientation generally requires fewer mounts as the rails span the shorter side of the panels, whereas landscape orientation may need more mounts to support the longer rail span and maintain system stability.

Rail Requirements

Portrait Orientation:

  • Typically, each row of panels in portrait orientation is supported by two horizontal rails.
  • The rails are mounted parallel to the roof’s slope, and the panels are installed vertically along these rails.
  • Fewer rails are required because each panel is taller than it is wide, covering more vertical space with each panel.

Landscape Orientation:

  • In landscape orientation, the panels are wider and shorter, so they require additional support across their longer edge.
  • This often means more rails are needed to support the same number of panels. You might need three or more horizontal rails per row to ensure the panels are securely attached, depending on the length of the panels.
  • The increased number of rails can add to the installation time and material cost.

Conclusion

The decision between portrait and landscape orientation for solar panel installation is not just a matter of preference but a strategic choice that affects both the functionality and economics of the project. Portrait orientation offers a more efficient use of rails, which can reduce costs and simplify the installation, especially on roofs with limited vertical space. Conversely, landscape orientation may be more suitable for wider roofs but typically requires additional rails, potentially increasing the complexity and expense of the installation.

By carefully considering the specific characteristics of the roof and the desired outcomes of the solar energy project, installers can choose the orientation that best balances aesthetics, cost, and efficiency, ultimately leading to a more effective and sustainable solar power solution.

For individuals seeking consultation, education, or assistance in system designs related to off-grid solar applications, IOTG Solar stands ready to help. Our team is available to address questions, provide valuable insights, and offer support at every stage of the solar energy journey. Feel free to reach out to  IOTG Solar  anytime for expert assistance and comprehensive solutions tailored to your specific needs.

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