Equation For Fixed Solar Panel Tilt Angle

For a precise method use the second formula on this page to calculate tilt angle.

Equation for fixed solar panel tilt angle.

Both of these angles require latitude degrees. Tilt the panels to your latitude plus 15. For instance qiu and riffat suggested the tilt angle of the solar collector set within the optimum tilt angle of 10 as an acceptable practice. There s a simple rule of thumb for calculating the best tilt angle for fixed mount solar panels.

Tilt the panels to your latitude minus 15. The optimum tilt angle is calculated by adding 15 degrees to your latitude during winter and subtracting 15 degrees from your latitude during summer. Tilt the panels to your latitude. Whatever your latitude is you can subtract 15 from it to calculate the angle for summer.

Various optimum tilt angle values were provided in the literature for fixed solar panels. There are two methods for calculating the tilt angle for solar panels. Similarly you can calculate the angle for winter by adding 15. If your latitude is outside this range see other situationsbelow.

The summer optimum tilt angle on the other hand will be 34 15 19. The tilt is 0 if solar panel parallel to horizon to design the tilt is 90 if the solar panel is vertical to design. For instance if your latitude is 34 the optimum tilt angle for your solar panels during winter will be 34 15 49. This table gives some examples.

Subtract 15 degrees from the latitude at your location during summer and add 15 degrees to your latitude during winter. The decision of azimuth. The best tilt angle for winter is the latitude times 0 875 plus 19 2 degrees. The tilt is included angle of horizon and solar panel.