• SUNY Fackbook
  • SUNY Linkedin
  • SUNY Youtube

Why is recycling solar panels difficult?

Recycling solar panels can be challenging for several reasons:

Complex composition: Solar panels are composed of a variety of materials, including glass, metals (such as aluminum and copper), plastics, and semiconductor materials (such as silicon). These components are often fused together, making it difficult to separate and recycle them efficiently.

Lack of standardization: There are currently no universal standards for the design and manufacture of solar panels. Different manufacturers use different materials and technologies, so developing a standardized recycling process for all types of solar panels is challenging.

Scrap Solar Panels

Limited infrastructure: The infrastructure for solar panel recycling is not as developed or extensive as in other recycling industries. Many regions lack dedicated recycling facilities and processes designed specifically for solar panels, making recycling solar panels logistically and economically challenging.

Volume and longevity: While demand for solar panels is increasing, the volume of end-of-life panels that can be recycled remains relatively low compared to other e-waste streams. In addition, solar panels have a long lifespan, often more than 25 years, which means that a large number of panels have not yet reached the end of their useful life.

Economic considerations: The cost-effectiveness of solar panel recycling is an important factor. Currently, the value of recovered material from recycled solar panels may not exceed the cost of collection, transportation and specialized recycling processes. As a result, the economic incentive to widely recycle solar panels may be limited.

As a professional solid waste recycling equipment manufacturer, SUNY GROUP has rich experience and technical equipment in solar panel recycling, and the focus of development is to develop more effective separation technologies, explore new recycling technologies and establish industry standards. If you have any questions about solar energy recycling, please feel free to contact us.


How are solar panels recycled?

Solar panels have become an increasingly common sight on rooftops as more homes and businesses embrace solar power. However, after 20-30 years of use, solar panels will eventually reach the end of their useful life and need to be replaced. This raises an important question – how are old solar panels recycled and disposed of at the end of their useful life?

The solar panel recycling process involves several key stages and techniques:

Collection and transportation

When removing solar panels during a roof replacement or system upgrade, they must first be carefully collected. Older panels are disconnected from the mounting system, and packaging is often placed on the panel to protect its glass side during shipping. The panels are loaded onto trucks and transported to a solar panel recycling facility. Proper handling at this stage can prevent damage that could compromise recovery rates.

Dismantling and classification

Solar panel recycling production line

Once at the recycling plant, the solar panels go through a disassembly process to separate out the different components. Workers first remove the aluminum frame around the solar cells using specialized frame removal equipment. Next, remove the junction box on the back of the panel so you can remove the wires.

Then, the glass on the solar panel is dusted, and the glass on the solar panel is completely removed by the solar non-glass removal equipment developed by SUNY GROUP.

Finally, the solar panels that have been removed from the glass are crushed, sorted and recycled to obtain the metals and non-metals inside.

Glass processing

By weight, the glass substrates that make up the majority of solar panels can be recycled into new glass products. Broken or damaged glass may first need to be broken into smaller pieces using a glass breaker. The glass shards are then melted in a high-temperature furnace at 1,292-1,832 degrees Fahrenheit.

The process separates out any non-glass contaminants, such as polymer backsheets or metal contacts, that float to the top of the molten glass in a process called refractory. The purified glass material can then be shaped or reshaped into new products such as fiberglass insulation, glass bottles or container glass. Some recycled glass can even be reused in new solar panels.

Recycled metal

The entire solar panel contains various precious and base metals, which have high recycling value. Recycled aluminum is recycled into new aluminum products. Electrical contacts made of silver, copper and other materials are further processed and refined to separate and recover their pure metal components. Metal requires more energy-intensive recycling than glass, but recycling metal from end-of-life panels helps conserve natural resources.

The complete set of solar panel recycling production line developed by SUNY GROUP can make almost all components of solar panels can be recycled, reused or used as fuel for power generation. A circular solar economy will facilitate greater adoption of renewable energy technologies while minimizing environmental impact throughout the life cycle.