Can You Achieve Better Sunlight Exposure with East-West Split Solar Arrays?

Understanding Solar Panel Azimuth

When designing a solar array, the location’s solar path and surrounding environment play a crucial role in determining the optimal azimuth angle. East-west split arrays allow for a more even distribution of panels, enabling them to capture both direct and diffuse sunlight. This approach is particularly beneficial in areas with dense tree cover or nearby structures that cast shade on a traditional north-south array.

Calculating East-West Split Array Configuration

To determine the optimal east-west split configuration, consider the following factors: the site’s latitude, the tree or structure’s proximity and shadow pattern, and the desired energy production increase. As a general rule, split the array into two sections, with one section facing east (typically 90-120 degrees) and the other facing west (210-240 degrees). This configuration allows the panels to capture sunlight during both morning and afternoon hours. For example, if your site is at 40 degrees latitude, a 90-degree east-facing section and a 210-degree west-facing section would be suitable.

Implementing East-West Split Arrays in Practice

When implementing an east-west split solar array, ensure that the panels are installed at the correct tilt angle and pitch. Typically, a 30-degree tilt angle and a 10-15 degree pitch for the east-facing section and a 10-15 degree pitch for the west-facing section would be suitable. Additionally, consider using adjustable mounting systems to accommodate changes in the sun’s path throughout the year.