4 Major Factors That Determine The Efficiency of Your Solar PV System
One of the major concerns of most homeowners who install solar power system on their roofs is the actual efficiency of the panels in generating the kind of energy they require. After all, when you invest a handsome amount in purchasing and installing equipment, you really are looking at the long term utility and feasibility of the project. That is why it would be helpful to have an understanding of the various elements that can potentially upgrade or degrade your PV system’s output. Here are the major factors that typically influence the efficiency of your solar PV system.
Pitch and orientation of Solar PV
The angle at which your Solar PV system is oriented with respect to the sun is one of the most critical factors in determining its output efficiency. For instance, during the summer months when the sun is at its highest, you must tilt the head of your panel at a lower angle to catch the maximum sunlight. On the other hand, you must adjust the panel at a higher angle for maximum efficiency during the winter months when the sun is at a lower angle in the sky.
Studied indicate that solar cells perform best in colder climates as compared to regions that experience prolonged spells of high temperatures. The solar panels are typically rated at a standard temperature of 25 degree C, which implies that any deviation in the surrounding temperature will essentially lower the PV system’s efficiency. Since in some regions the hot summer days can report temperatures of up to 70 degree C, the panels are likely to produce 25% lesser amount of energy as it would at the standard 25 degree C.
We all know that solar PV systems work by absorbing solar energy from the sunlight and converting it into electricity. This would imply that the more your panel is exposed to the direct sunlight, the more efficiently it would operate. Since the orientation of the sun in the sky keeps changing throughout the year, you might consider any tall buildings or trees that might end up causing shading issues in the different seasons. The idea is to minimize all shading, especially during the peak hours of sunlight for achieving maximum output from your solar Panel system.
Since the fundamental premise of a solar power system’s operation is prolonged exposure to sunlight, any kind of dust, debris or dirt that collects on the panels will inevitably inhibit the performance of the solar cells. Since soiling blocks the direct sunlight from reaching the solar cells, you must stick to a proper maintenance schedule to keep the panels clean and promote higher efficiency of your solar PV system.