What should I do if I notice seasonal shading changes affecting performance?

Assessing Shading Patterns

To mitigate the effects of seasonal shading changes, it’s crucial to understand the patterns and intensity of shading on your property. Use a solar pathfinder tool or consult with a solar installer to identify areas with significant shading, such as trees, buildings, or hills. Typically, shading from morning to afternoon can vary from 10-30% of the day, depending on the location and time of year.

Adjusting Panel Orientation

One strategy to combat seasonal shading is to adjust the solar panel’s orientation to maximize sunlight exposure during peak hours. For most regions, this means setting the panels to a southerly direction (between 180-240 degrees) with a tilt angle of 30-40 degrees. However, if shading from nearby objects is unavoidable, consider adjusting the panel’s orientation by 10-20 degrees to minimize the impact of shading during peak sun hours.

Upgrading to a Tracking System

For areas with extreme seasonal shading patterns or limited space, installing a solar panel tracking system can be an effective solution. These systems can rotate the panels to follow the sun’s movement, increasing energy output by up to 40% compared to fixed systems. Typically, a tracking system can be programmed to adjust its angle and direction to optimize energy production throughout the day, making it a worthwhile investment for properties with significant shading issues.