Blog | Oakray Rewewables

A guide to recycling solar panels

Written by Oakray Renewables | Apr 22, 2025 8:26:09 AM

Solar power has changed the way we generate electricity, providing homes and businesses with clean, renewable energy. But what happens when solar panels reach the end of their lifespan? Just like any technology, they don’t last forever, but that doesn’t mean they should end up in landfill. Solar panel recycling is key to ensuring that these panels continue to contribute to sustainability, even after they stop producing electricity efficiently.

If you're wondering how solar panels are recycled, why it matters, and what you should do with your old panels, this guide will walk you through everything you need to know.

The lifecycle of a solar panel

Solar panels are built to last. Typically, they have a lifespan of 25 to 30 years, generating reliable electricity throughout that time. However, this doesn’t mean they suddenly stop working when they hit the 30-year mark. Many panels continue producing power, just at a lower efficiency.

At some point, though, they’ll need to be replaced, either because they no longer generate enough electricity or because newer, more efficient technology has become available. When that time comes, recycling is the best way to ensure they’re disposed of responsibly.

What happens when a solar panel reaches the end of its useful life?

Unlike many household items, solar panels aren’t something you can just throw in a skip. They contain valuable materials like silicon, glass, aluminium and even small amounts of rare metals. Sending them to landfill is a waste of these resources, not to mention harmful to the environment.

Instead, panels can be recycled, repurposed or even refurbished for further use. Some panels that are still functional, just less efficient, are reused for smaller-scale projects, while others are broken down into raw materials to be used in new solar panels or other products.

How are solar panels recycled? 

Recycling solar panels is a multi-step process designed to extract as many usable materials as possible.

  1. Collection and transport: Old panels are removed from homes, businesses, or solar farms and sent to a recycling facility.
  2. Disassembly: The aluminium frame, wiring and other external parts are removed and recycled separately.
  3. Glass recovery: Since around 75% of a solar panel is glass, this is one of the most reusable components, often repurposed for new panels or other glass products.
  4. Silicon extraction: The photovoltaic (PV) cells, which contain silicon, are carefully processed to recover and refine the silicon for reuse.
  5. Metal separation: Materials like silver, copper, and tin are extracted and can be used in new electronics or solar panels.

Why is recycling solar panels important?

Recycling solar panels is an essential part of making solar energy as sustainable as possible. While solar panels dramatically reduce carbon emissions compared to fossil fuels, they do contain materials that need to be disposed of properly. Recycling is a way to ensure this through a circular approach. 

  • Reduce landfill waste: Solar panels contain materials that don’t break down easily. Recycling ensures they don’t pile up in landfills.
  • Recover valuable resources: Aluminium, silicon and precious metals can be reused in new panels, reducing the need for new mining. 
  • Lower the carbon footprint of solar technology:  Manufacturing new panels requires energy and raw materials. Recycling reduces the need for fresh extraction, making the whole industry greener.

Make your solar system even more sustainable

Solar power is already a game-changer for renewable energy, but making sure that panels are responsibly disposed of is just as important as installing them in the first place. Whether you’re upgrading your system or replacing old panels, solar panel recycling is the best way to minimise waste and keep materials in use for longer.

If you’re unsure about the best way to recycle your panels, check with your installer, local council or a specialist recycling service. The more we embrace responsible disposal, the more we ensure that solar energy remains a truly sustainable solution for the future.

Thinking of upgrading your solar panels? At Oakray Renewables, we’re here to help. Whether it’s replacing your old panels or advising on the best recycling options, we’ve got you covered. Download our guide below to find out more and let’s keep your energy green from start to finish.