When it comes to solar installations, most people think of roof-mounted or ground-mounted systems. But what if you don’t have the space for ground mounting, or your roof warranty discourages solar panels? That’s where a wall-mounted solar rack can shine. Here’s how I built my DIY wall-mounted solar system and why it might be the perfect solution for your solar needs.
My Wall-Mounted Solar Setup
I installed 13 100-watt solar panels on a sturdy wall-mounted solar rack. The panels’ cables are paralleled into a combiner box, outputting 12 volts to a transfer switch. This transfer switch gives me two options for directing the energy:
1. Selling Power to the Utility
One path connects to a 1000-watt micro grid-tied inverter, allowing me to sell excess power back to the utility grid. This helps offset my electricity bills while contributing to renewable energy production.
2. Charging a Backup Battery Bank
The other path leads to an MPPT (Maximum Power Point Tracking) controller, which charges a battery bank. This setup provides backup power for critical needs during outages, offering flexibility and energy independence.
Why Choose a Wall-Mounted Solar System?
Wall-mounted solar racks are an unconventional but highly practical choice for many homeowners. Here are some benefits:
• Space Efficiency: If you don’t have the yard space for a ground-mounted system, a wall mount makes use of vertical space that might otherwise go unused.
• Roof Warranty Preservation: Many roof warranties can be voided by solar installations due to drilling or added weight. Wall mounting avoids this issue entirely.
• Ease of Maintenance: Wall-mounted systems are more accessible for cleaning, repairs, and upgrades compared to roof installations.
• Better Orientation Options: If your roof doesn’t face the right direction for optimal sun exposure, a wall mount allows you to adjust the angle and direction of the panels to maximize efficiency.
• Wind Resistance: Wall-mounted systems are typically less exposed to strong winds compared to elevated roof systems, offering enhanced durability in storm-prone areas.
Things to Consider
While wall-mounted systems have many advantages, they may not work for every scenario. Here are a few points to keep in mind:
• Structural Integrity: Ensure the wall can handle the weight of the panels and mounting hardware. Reinforcement may be needed for older or less sturdy walls.
• Shading Issues: Wall-mounted systems need unobstructed sunlight. Evaluate potential shading from nearby buildings or trees before installation.
• Aesthetic Concerns: Some homeowners associations (HOAs) or local codes may have restrictions on visible installations. Check regulations in your area.
Final Thoughts
My DIY wall-mounted solar system has been a rewarding project. It offers a versatile way to generate renewable energy while addressing space, maintenance, and warranty concerns. Whether you’re looking to supplement your power needs, sell energy back to the grid, or create a reliable backup system, a wall-mounted solar installation could be a creative and practical solution.
If you’re considering going solar but don’t want to follow the traditional roof or ground-mounted path, give wall mounting a serious look. It’s a unique approach that might just suit your space and energy needs perfectly.