Quick Answer
Single-axis trackers can be challenging to install due to their complex mechanical design and the need for precise leveling and alignment, requiring specialized tools and expertise to ensure optimal performance and durability.
Installation Requirements
Installing single-axis trackers demands careful planning and execution to ensure smooth operation. Typically, a 2-3 person team is required for a single-axis tracker installation, consisting of an electrician, a mechanic, and a rigger. A 10-15 ton crane is often necessary for the heavier components, such as the tracker itself and the mounting system.
Site Preparation and Groundwork
Before installing a single-axis tracker, the site must be thoroughly prepared, including clearing the area of any debris, leveling the ground, and ensuring a stable foundation. A 10’ x 10’ area is typically required for the tracker’s footprint, with a recommended 20-30% slope to facilitate water runoff. Proper anchoring and grouting are also crucial to prevent foundation damage and tracker misalignment.
Alignment and Leveling Techniques
Accurate alignment and leveling are critical to the tracker’s performance, as even minor errors can lead to reduced energy output and premature wear. Using GPS and laser leveling tools can help achieve precise alignment, while a string alignment technique can be employed to ensure the tracker’s rails are properly aligned with the solar array.
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