What Angle Should A Solar Panel Be Mounted?

First and foremost, it is essential to understand the solar radiation levels in your specific region. This involves reviewing local meteorological data and identifying the monthly average daily solar radiation on a horizontal surface. By accounting for both the lowest and highest solar radiation values, you can optimize the panel orientation to maximize sunlight capture and enhance the overall efficiency of your solar energy system.

Another critical consideration is the variation in peak solar irradiation across different seasons, times of day, and directions. During hot summers and cold winters, the angle and intensity of sunlight differ significantly. Therefore, it is important to adjust the installation approach seasonally. Additionally, to make the most efficient use of space and avoid obstructions during sunlight exposure, solar panels should be installed away from tall buildings or other structures that may cast shadows.

Finally, selecting the appropriate installation direction and tilt angle is key to maximizing energy generation.

• Direction: For optimal sunlight exposure, panels should face true north in the Southern Hemisphere and true south in the Northern Hemisphere. This ensures that the panels receive direct sunlight for the longest duration each day.
• Tilt Angle: The tilt angle of the panels should be adjusted to capture as much solar energy as possible. The ideal angle depends on your geographical latitude.

Generally, the higher the latitude, the more significantly the tilt angle affects energy production. The following figures illustrate how the power output varies with tilt angles ranging from 0° to 90° at different latitudes: