Working in the solar panel industry, or in an industry related to solar panels, will clearly understand the benefits of solar energy to the world. Compared to other forms of energy production, clean, renewable energy boosts local economies, helps reduce greenhouse gas emissions, and requires little maintenance over the life of the investment.
For an industry that prides itself on sustainability, attention must be paid to recycling solar panels when they reach the end of their lifespan, so that landfills do not become full of panels. At this time, what you may consider is how long can the solar panels last? According to research, the service life of glass solar panels is about 30 years.
Over the lifetime of a photovoltaic panel, the power capacity may drop by 20%. Between the first 10 and 12 years, there is a maximum drop in efficiency of 10%, reaching a 20% drop in 25 years. This is confirmed by many solar panel manufacturers. Nevertheless, experience shows that, in practice, efficiency only drops by 6% to 8% after 25 years. As a result, solar panels may last much longer than officially stated. High-quality photovoltaic panels can even last up to 30 to 40 years, after which they can still be used, but with reduced efficiency.
So are solar panels recyclable? The answer is yes. Silicon solar photovoltaic modules are mainly composed of glass, aluminum alloy, plastic, cells, etc. These materials can be decomposed, but these materials need to be separated in advance. The following are the main steps to successfully recycle silicon solar modules:
Removable aluminum frame (100% reusable)
Separate glass along conveyor belt (95% reusable)
Heat treatment at 500 degrees Celsius (this allows evaporation of small plastic components, allowing for easier separation)
Etches away silicon wafers and melts them into reusable slabs (85% reusable)
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