By the PPA Funding team Last updated
At end of life, commercial solar panels are largely recyclable: the aluminium frame, glass and much of the silicon and metals can be recovered. In the UK, panels fall under WEEE electrical-waste rules, so producers and recyclers handle take-back and processing. Confirm current obligations with your installer or a licensed waste carrier.
Can commercial solar panels actually be recycled?
A standard silicon panel is mostly glass and an aluminium frame, both of which recycle through established streams. The laminate holds silicon cells, copper, silver and other metals that specialist recyclers can separate and recover. The share reclaimed keeps rising as dedicated panel-recycling plants come online across Europe.
The parts that are harder to process are the plastic backsheet and the encapsulant that bonds the layers. These are the focus of current recycling research, and recovery rates vary by facility. A panel reaching end of life is a manufactured product with real material value, not simple waste.
What are the UK rules on disposing of old panels?
Solar panels are classed as electrical equipment, so they come under the Waste Electrical and Electronic Equipment (WEEE) rules. In broad terms this places take-back and financing duties on producers, and requires waste to go to approved treatment facilities rather than landfill or general skips.
The detail of who is responsible, and how, depends on the product, the volume and the current version of the regulations. Do not treat this as legal advice. Confirm the obligations that apply to your site with your installer, your waste contractor, or the Environment Agency.
How does recycling affect the sustainability case?
Panels typically generate clean electricity for decades, and a high share of the materials can then be recovered. That combination strengthens the whole-life environmental case, which matters if you report on ESG or scope 2 emissions. It also reduces the raw materials needed for the next generation of panels.
Under a PPA the funder owns the system, so responsibility for removal and disposal usually sits with them, not you. Check the end-of-term clause so you know who handles decommissioning and recycling when the agreement finishes, especially if you take the system on through the £1 buyout.
This guide is general information, not financial or tax advice. Your circumstances determine what applies — please confirm with your accountant or advisor. Get a tailored proposal →
Frequently asked questions
Where do old solar panels go at the end of their life?
They go to an approved treatment facility, not landfill, where the glass, aluminium and metals are separated and recovered. A licensed waste carrier or the original producer usually arranges collection under WEEE rules. Ask your installer for their end-of-life process before you commit.
Who pays to remove the panels under a PPA?
Because the funder owns the system during the term, removal and recycling costs normally sit with them. If you take ownership at the end through the £1 buyout, future disposal becomes your responsibility. The contract's end-of-term clause should say so clearly, so read it before signing.
Related guides
- Rent Your Roof for Solar: How Building Owners Earn From Unused Roof Space
- On-Balance-Sheet vs Off-Balance-Sheet Solar: How the Funding Route Shows in Your Accounts
- Three-Phase vs Single-Phase Supply: How It Affects Commercial Solar
See our funding options, commercial solar and solar by industry pages.