Quick Answer
Budget solar panels degrade faster over time due to lower quality materials and manufacturing processes. This can lead to a reduction in efficiency and overall lifespan. Polycrystalline panels, in particular, tend to degrade faster than monocrystalline panels.
Polycrystalline Panels and Degradation
Polycrystalline solar panels are made from multiple crystal structures, which can affect their performance and lifespan. While they are less expensive than monocrystalline panels, they tend to degrade faster due to the varying crystal structures. According to the International Energy Agency (IEA), polycrystalline panels can lose up to 0.5% of their efficiency per year, compared to 0.3% for monocrystalline panels.
Factors Affecting Degradation
Several factors contribute to the degradation of solar panels, including temperature, humidity, and exposure to light. Polycrystalline panels are more susceptible to degradation due to the presence of defects and impurities in the crystal structures. To minimize degradation, it’s essential to follow proper installation and maintenance procedures, including keeping the panels clean and shaded.
Choosing the Right Panel
When selecting a solar panel, consider the trade-off between cost and lifespan. While budget polycrystalline panels may be more affordable upfront, they may require replacement sooner, leading to higher long-term costs. Monocrystalline panels, on the other hand, offer higher efficiency and longer lifespan, but come at a higher upfront cost. To maximize the lifespan of your solar panel, look for high-quality panels with a warranty of 25 years or more.
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