Factors That Affect The Voltage Output Of A Solar Panel

Electricity output of a typical solar panel.

Factors that affect the voltage output of a solar panel.

Ideally you would want to adjust the tilt of your panels throughout the year because the sun is higher in the summer and lower in the winter. As the sunshine and temperature change the output voltage of the solar panels changes accordingly and the output power of the pv array will change as well. A panel rated at 250 watts will likely only produce 186 7w of electricity per hour of sunlight. The electricity generated by a solar pv system is governed by its rated power output but it s also dependent on other factors such as panel efficiency and temperature sensitivity as well as the degree of shading that the system experiences and the tilt angle and azimuth of the roof on which it s installed.

Before getting into the external stuff let s take a moment to reinforce the importance of solar panel efficiency. There are several other factors that affect solar panel efficiency and the ability to convert sunlight into energy for use in our homes and businesses. The amount of sunlight that hits the panel the size of the panel and the efficiency of the panel at converting sunlight into electricity. Solar energy output is also affected by weather and seasonal variations.

The tilt of your solar panels can have a major impact on the overall output of your system. Each of these efficiency losses and de ratings are included in the calculation of output for a solar panel. Believe it or not warmer temperatures actually have an adverse effect on the production of solar panels. The infographic below shows the effect of efficiency factors on panel output.

Going back to what we mentioned in the beginning the three factors that affect solar panel output are. A solar panel with 18 efficiency converts more light to electricity than a solar panel with 12 efficiency. To design a home pv system with optimal solar power output professional contractors need to consider a number of factors. Besides solar panels efficiency and size there are other factors that affect how much power your solar panels will create.

The tilt of solar panels and the effect on solar panel production. Solar panels and temperature. This is pretty straightforward. Living in arizona will get more solar radiation than someone who lives in the mid west.