Pitch tilt considerations in sizing of solar power plants
Pitch tilt is an essential factor in sizing a solar power plant. It is crucial to ensure that the solar panels are positioned at the right angle to maximize the energy output of the plant. Pitch tilt refers to the angle at which the solar panels are tilted, and it is measured in degrees from horizontal. A pitch angle of zero means that the solar panels are mounted flat on the ground, while a pitch angle of 90 degrees means that the panels are mounted vertically.
The pitch angle of a solar panel can significantly impact its energy output. For instance, if the angle is too steep, then the solar panels will receive less sunlight during the early morning and late afternoon hours. Conversely, if the angle is too flat, the solar panels will receive less sunlight during the middle of the day, when the sun is directly overhead. Therefore, it is essential to consider several criteria when determining the optimal pitch tilt for a solar power plant.
Criterion 1: Single Axis Tracker and Shadow Loss Due to Surrounding Objects
Single Axis Tracker (SAT) is a system that tracks the sun’s movement throughout the day, adjusting the angle of the solar panels to maintain maximum exposure to sunlight. However, shadow loss due to surrounding objects can significantly impact the energy output of SAT systems. Therefore, it is essential to optimize the inter-row pitch for minimum shading due to adjacent tables.
For instance, let’s consider a case study where a solar power plant has a pitch of 6.75m throughout its PV array area. The surrounding structures/objects may cause shadows on the solar panels, resulting in a decrease in energy output. In such a scenario, the revised PVSyst report and PR value shall be provided to ensure optimal energy output.
Criterion 2: Adequate Inter-Row Spacing for Cleaning of Modules
The solar panels require regular cleaning to maintain their optimal performance. Therefore, it is crucial to ensure that adequate inter-row spacing is maintained for cleaning of modules. The space between adjacent rows should be enough to allow access to cleaning equipment.
In conclusion, pitch tilt is a crucial factor in determining the energy output of a solar power plant. It is essential to consider several criteria, such as single-axis tracker, shadow loss due to surrounding objects, and adequate inter-row spacing for cleaning of modules, while determining the optimal pitch tilt for a solar power plant. By considering these criteria, we can maximize the energy output of a solar power plant, making it more efficient and cost-effective.