Will rainwater pooling affect solar array performance?

Understanding the Impact of Rainwater Pooling

Rainwater pooling around a solar array, typically on flat ground mounts, can lead to reduced performance. The pooling can attract dirt and debris, which accumulate on the panels and create micro-crystalline films that scatter sunlight. This scattering reduces the amount of direct sunlight that reaches the panels, resulting in a decrease in energy production.

Mitigation Strategies

To minimize the impact of rainwater pooling, consider the following techniques:

• Install a slight incline (1-2%) on the ground mount to direct water away from the panels.
• Use a drainage system, such as a French drain or a trench drain, to efficiently direct water away from the array.
• Consider installing a solar panel tracking system, which can maintain optimal angles for energy production even in the presence of pooling.
• Regularly inspect and clean the panels to prevent dirt and debris buildup.

Best Practices for Ground Mount Installation

When designing a ground mount solar array, consider the following best practices to minimize the impact of rainwater pooling:

• Install the array on a slight incline (1-2%) to direct water away from the panels.
• Use a durable, weather-resistant coating on the ground mount to prevent corrosion and ensure structural integrity.
• Ensure adequate drainage around the array to prevent water from accumulating.
• Regularly inspect and maintain the array to prevent damage and ensure optimal performance.