Frequently Asked Questions About Solar Panels – Expert Answers

Many people wonder how the weather affects the performance of solar panels, and is it even possible to optimize them in different weather conditions?

Solar systems are becoming increasingly popular as sustainable energy sources these days, but their performance can be affected by many factors. We all know that solar panels are at their most efficient when the weather is sunny. The electrons generated by the radiation from the sun are converted into electricity, which can be used in household systems with the help of an inverter. In cloudy, rainy, and windy weather, the efficiency of solar panels may decrease, but is it worth it?

Yes. Despite the fact that the sun shines less in winter and the weather is often foggy, solar panels can produce efficiently even in winter. Although their overall efficiency is lower than in the summer months, they still contribute significantly to the annual production.

What is worth paying attention to then?

In winter, thick layers of snow or ice can cover the panels, blocking the penetration of sunlight, but typically (primarily due to the angle of the roof) the layer of snow slides off the solar panels first.

Rain can temporarily reduce the efficiency of a solar panel as water droplets can capture and scatter sunlight, however after rain the panels usually clean themselves and regain their efficiency.
The effect of wind on the operation of solar panels is usually minimal.

How does temperature affect efficiency?

Solar systems achieve their best performance at around 25 °C, so extremely high summer temperatures can reduce their efficiency, which is compensated by the number of hours of sunshine. In contrast, in winter, due to the direct heating of the sun, the temperature is closer to the optimal value, so it can be operated with optimal efficiency even in winter.

What can we do for maximum performance?

Optimal placement is key. The solar panels should preferably be installed in a place where wind shadows are minimal and where there is the most sunlight during the day. This ensures that the solar panels can produce as much energy as possible.

Inverters also play a decisive role in terms of performance. Their task is to convert the direct current they produce into alternating current. Choosing the right size and quality inverter is essential for efficient energy conversion.

Thanks to advanced technology, the efficiency of solar panel systems can be optimized even in changing weather conditions. Proper design, installation and maintenance can ensure that your solar panels perform at their best, whether the sky is sunny or cloudy. Using solar energy is one of the most sustainable ways to generate energy, and with the right care, it can become a profitable investment in the long term.