Efficiency Of Solar Panels At Different Angles

If it s standing upright perpendicular to the ground it is at a 90 angle.

Efficiency of solar panels at different angles. When a solar system is level with the ground it has no tilt. You can visualize this by shining a flashlight on a piece of paper. This is because the average intensity of the light incident on a flat surface area decreases as the angle decreases from 90 degrees. Solar panels have been consistently increasing in efficiency at about 5 annually since 2010.

The solar panel angle can affect the amount of solar electricity you generate and is based on two factors. If you have the option to place the panels in more of a north east or north west direction it is recommended. Factors that affect solar panel efficiency. The effect of an array s tilt angle on solar pv energy output may be up to 20 compared to that of flat installations.

The highest efficiency solar panels on the market today can reach almost 23 percent efficiency. The optimum tilt angle is calculated by adding 15 degrees to your latitude during winter and subtracting 15 degrees from your latitude during summer. The summer optimum tilt angle on the other hand will be 34 15 19. Solar panel angle is another way of describing the vertical tilt of your pv system.

For instance if your latitude is 34 the optimum tilt angle for your solar panels during winter will be 34 15 49. Depending on your location and roof pitch you re going to lose somewhere between 10 20 efficiency as a result of not having panels facing in a due north direction.