Solar cells have seen a considerable increase in efficiency in recent years. Modern solar cells utilize a larger proportion of solar energy and achieve efficiencies of up to 24% and more. The efficiency depends on the technology used. Monocrystalline solar cells offer the highest efficiency, followed by polycrystalline and thin-film solar cells. These advances make it possible to generate a significant amount of electricity even with less solar radiation.
Choosing the right solar cells plays a decisive role in the cost-effectiveness of the entire system. Monocrystalline solar cells are more expensive, but their higher efficiency means that they make better use of the available space on the roof. Polycrystalline solar cells are cheaper, but have a lower efficiency, which means that more space is required to generate the same amount of electricity.
Another aspect that influences efficiency is the environment. Dust, dirt and shade can reduce the energy yield. For this reason, it is important to clean the solar cells regularly and ensure that they are optimally aligned to capture the maximum amount of sunlight.
The continuous development of solar cell technology ensures that efficiency continues to improve. New materials and technologies such as multi-junction solar cells, which use different spectra of light, could enable even higher efficiency values in the future.
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