When solar panels reach the end of their operational life, or are displaced by a repowering project, asset owners face a choice that has significant implications for project economics, environmental outcomes, and ESG reporting. The three main options are recycling, reuse, and resale. Each has a different cost and value profile, and the right choice depends on the condition of the panels, the volumes involved, and the priorities of the organisation.
This guide sets out the key differences between each option so you can make an informed decision.
Option 1: Resale into second-life markets
For panels that are physically undamaged and electrically functional, resale to a specialist second-life procurement company is typically the best outcome across all three dimensions: financial, environmental, and social.
Second-life buyers purchase panels in bulk for deployment in emerging markets where demand for affordable solar power is strong. A panel displaced from a European repowering project can provide electricity to a home, school, or small business in West Africa or Southeast Asia, markets where grid electricity is expensive, unreliable, or simply unavailable.
From a financial perspective, resale generates revenue rather than cost. Depending on panel condition, make, model, and quantity, sellers can expect anywhere from £5 to £50 per panel, with logistics either deducted from the price or handled separately depending on the agreement.
The ESG narrative for resale is the strongest of the three options. Rather than recovering materials from destroyed panels, resale extends the useful life of the panel and delivers energy access to communities that need it. For corporate sellers with sustainability reporting obligations, this is a meaningfully better story than recycling.
When resale is the right choice
- Panels are physically intact with no cracked glass or broken frames
- Output is above 50% of original rated capacity
- Quantity is 1,000 panels or more
- Project timeline allows for a planned buyer engagement process
Option 2: Domestic reuse
Photo: Pexels
Domestic reuse refers to panels being repurposed within the same market, typically for smaller commercial or residential solar installations where price sensitivity makes second-hand panels attractive. This market is relatively small compared to international second-life demand, but it exists.
The challenge with domestic reuse is matching supply and demand at the right scale. A solar farm decommissioning generates tens of thousands of panels at once, while domestic reuse buyers typically want smaller quantities. Aggregating demand from multiple small buyers is logistically complex and time-consuming.
Domestic reuse is most practical for smaller quantities, typically under 500 panels, and for newer or higher-specification panels that command a premium in the secondary market. For the large volumes generated by utility-scale decommissioning, international second-life resale is usually a more practical route.
Option 3: Recycling
Recycling is the appropriate option when panels cannot be reused, either because of physical damage, severe electrical degradation, or when no viable buyer or reuse route can be identified. It is not the ideal first choice, but it is the responsible option when reuse is not viable.
Solar panels contain recoverable materials including aluminium frames, glass, copper wiring, and silicon. Modern recycling processes can recover a high proportion of these materials for reprocessing into new products. Under the WEEE Directive in the UK and EU, solar panels are classified as specialist waste and must be handled by a licensed waste carrier, whether they are being recycled or sold.
Recycling has a cost. In the UK, disposal costs typically range from £10 to £25 per panel depending on volume, location, and the specific recycler. This cost needs to be factored into project economics from the outset, as it can represent a significant overhead on a large decommissioning project.
When recycling is the right choice
- Panels have cracked glass, broken frames, or severe delamination
- Output has degraded below 50% of original rated capacity
- No viable buyer can be found within the project timeline
- Panel technology is obsolete and has no secondary market value
Making the right decision for your project
In practice, most large decommissioning or repowering projects will involve a combination of all three options. A proportion of panels will be suitable for second-life resale, some may have minor damage that makes them recycling candidates, and a small number might find a domestic reuse home.
The key is to assess the inventory before committing to a single route, understand the condition distribution across the lot, and engage potential buyers early so that the resale option is properly explored before defaulting to recycling.
Early engagement with a specialist buyer also allows for a more accurate assessment of project economics. If you know upfront that 80% of your panels will generate £15 per panel through resale and 20% will cost £15 per panel to recycle, you can model the net position accurately and avoid surprises.
Getting a valuation
If you have a panel inventory coming available and want to understand which option is right for your specific situation, Solagix can provide a no-obligation assessment and valuation within 48 hours.
We specialise in bulk procurement for second-life deployment, and we can give you a clear view of which panels in your inventory have resale value and at what price, helping you maximise the financial and ESG outcome from your decommissioning project.
Submit your inventory details here to get started.