Top-of-Pole Solar Panel Mount
The top-of-pole mount is a highly functional solution designed to optimize the performance of your solar panel by maximizing its exposure to sunlight. For optimal power output, solar panels should be as close to perpendicular to the sun's rays as possible. This means that adjusting both the tilt and rotation of the panel is essential. Based on my experience, repositioning an 85-watt panel 3-4 times a day can yield up to 40 amp-hours of power on a clear day on the Great Lakes.
Our top-of-pole mount is designed for easy adjustment without tools. With 13 tilt positions, the mount allows you to change the panel’s angle by simply pulling a pin, adjusting the tilt, and reinserting the pin. Additionally, the mount provides full 360-degree rotation, allowing you to track the sun throughout the day. We’ve included a pole-locking mechanism to secure the panel in windy conditions, which also acts as a brake to control rotation.
As shown in the picture, we’ve positioned the pole on the stern rail, away from the boom, ensuring the panel is free from shadows that would reduce its efficiency. The pole is high enough to clear the bimini but still within reach for easy adjustments.
For practical use, we recommend a maximum panel size of around 120 watts (31" x 48") for a top-of-pole mount like ours. Larger panels may require additional support, as the stability of the stern rails alone may not suffice. If you’re considering larger panels, mounting them on a bimini frame, dinghy davits, or directly to the stern rail with extra bracing is recommended.
Pros and Cons of Different Mounting Options
Top-of-Pole Mount
- Pros: Easily adjusted for optimal sun angle, free from shadows, minimal deck space usage.
- Cons: Limited to smaller panel sizes due to stability constraints.
Bimini Frame Mount
- Pros: Can accommodate larger panels, keeps deck space clear.
- Cons: Limited adjustability for sun tracking, may be affected by shadows from the boom, backstay, or topping lift.