What does the term "tilt angle" refer to in solar panel installation?

The term "tilt angle" refers specifically to the angle at which solar panels are mounted relative to the ground. This angle is crucial because it can significantly impact the efficiency of the solar panels in capturing sunlight. By optimizing the tilt angle, installers can maximize the solar energy absorption throughout the day and across different seasons.

When solar panels are tilted at the correct angle, they can receive sunlight more directly than if they were flat. This angle is typically adjusted based on geographic location, seasonal variations, and the specific orientation of the solar installation. A properly chosen tilt angle can enhance the overall performance and energy production of a solar power system.

Other options discuss related concepts but do not define tilt angle accurately. The angle of sunlight hitting the panels is influenced by the position of the sun, while the angle of the solar inverter and shadowing considerations are separate factors that do not directly define tilt angle in the context of panel installation.