Solar panels have become increasingly popular as an environmentally-friendly energy solution, thanks to technological advancements and reduced costs. As homeowners invest in this renewable energy source, ensuring the longevity of their solar panels is a top priority. In a recent interview with CNET, Chris Deline, a research engineer at the National Renewable Energy Laboratory, shared insights on how to maximise the lifespan of solar panels, which typically last over 25 years.
According to Deline, solar panels are robust, with most designed to last decades and backed by warranties of 25 years or more. The key to longevity, however, lies in selecting a reputable installer and maintaining the panels properly. Solar panels degrade slowly, with experts estimating a 0.5% degradation per year under normal conditions. After 20 years, a panel should still function at 90% of its original capacity.
Choosing the right installer is crucial for the long-term performance of a solar system. Deline recommends researching and getting quotes from several companies before making a decision. A trustworthy installer will conduct a thorough inspection of the roof to ensure it can support the solar panels and their associated weight.
Deline explains that there is little differentiation between solar panels from various manufacturers. The primary difference lies in the quality control and manufacturing technology employed by each company. Therefore, the installer’s reputation and experience are paramount for ensuring a long-lasting solar panel system.
You can take several steps to maintain their solar panels and extend their lifespan. First, monitor energy generation regularly to ensure the system is functioning optimally. Deline shared a personal anecdote where his solar system’s shut-off switch was accidentally flipped by his child, causing a loss of generation for an extended period.
Keeping solar panels clean is another essential maintenance task. Depending on the location, different types of build-up, such as dirt, soil, or snow, can accumulate on the panels, reducing their efficiency. Cleaning the panels using a push broom or a hose can help maintain optimal performance. However, it is crucial to avoid walking on the panels as this can damage them.
