Photovoltaic systems and weather

Many people wonder how the weather affects the performance of photovoltaic panels, and is it even possible to optimize the performance of the system under different weather conditions?

Photovoltaic systems are now becoming increasingly popular as sustainable energy sources, but many factors can affect their performance. We all know that solar panels are most efficient when it is sunny. The electrons created by the sun's rays are converted into electricity, which, with the help of an inverter, can be used in home installations. When the weather is cloudy, rainy and windy, the efficiency of photovoltaic panels may drop, but is it worth the investment?

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

What then is worth paying attention to?

In winter, thick layers of snow or ice can cover the panels, blocking the penetration of sunlight, but usually (mainly due to the angle of the roof) the snow layer slides off the photovoltaic panels first.
Rain can temporarily reduce the efficiency of a solar panel because water droplets can capture and scatter sunlight, but after rain, the panels usually clean themselves and regain their efficiency. The effect of wind on the operation of photovoltaic panels is usually minimal.

How does temperature affect performance?

Photovoltaic systems achieve their best performance at around 25°C, so extremely high temperatures in summer can reduce their efficiency, which is compensated for by the number of hours of sunshine. In winter, on the other hand, the temperature is closer to the optimum value due to the direct heating of the sun, so you can work with optimum efficiency during the winter season.

What can we do to get maximum efficiency?

Optimal placement is key. Photovoltaic panels are best installed in a location where shading is minimal and where there is the most sunlight during the day. This will ensure that the solar panels are able to produce as much energy as possible.

Inverters also play a critical role in terms of efficiency. Their task is to convert the direct current they produce into alternating current. Optimal selection of an inverter in terms of power and quality is essential for stable operation for many years.

Thanks to advanced technology, the performance of photovoltaic systems can be optimized even in changing weather conditions. Proper design, installation and maintenance can ensure the best performance of solar panels, whether the sky is sunny or cloudy. The use of solar energy is one of the most sustainable ways to generate energy, and with proper care can become a profitable investment in the long run.