The Opportunities of Solar Panel Recycling

January 29, 2019

January 29, 2019


This guest blog is courtesy of GreenMatch.


What Happens to PV Panels When Their Life Cycle Ends


The energy industry has been experiencing a radical change and the gradual shift towards renewable energy sourcing is more than evident. Nevertheless, not all that looks sustainable stays that way upon the end of its life cycle. At least that is the most common worry regarding photovoltaic (PV) solar panels. They are a sustainable source of energy, dependant only on solar radiation, and capable of delivering electricity to our homes. However, what happens to solar panels when they fail to perform efficiently? Explore their journey through the recycling process in the infographic below:

The Lifetime of Solar Panels


How long do solar panels last? A question that most people have in mind when considering solar panels. According to studies, the life expectancy of solar panels is about 30 years before decommissioning.


During the life of photovoltaic panels, a 20 per cent decrease in power capacity might occur. Between the first 10 to 12 years, the maximum decrease in efficiency is 10 per cent, and 20 per cent when reaching 25 years. These figures are guaranteed by the majority of manufacturers.


Still, experience shows that, in reality, the efficiency drops by merely 6 to 8 per cent after 25 years. The lifespan of solar panels may thus be much longer than officially stated. The lifespan of high quality PV panels may even reach 30 to 40 years, and be still functional afterwards, though with decreasing efficacy.


Disposal of Solar Panels


From a regulatory aspect, PV panel waste still falls under the general waste classification. A sole exception exists at EU-level, where PV panels are defined as e-waste in the Waste Electrical and Electronic Equipment (WEEE) Directive. The PV panel waste management is thus regulated by this directive, additionally to other legal frameworks.


The solar cells manufacturers are bound by law to fulfil specific legal requirements and recycling standards in order to make sure that solar panels do not become a burden to the environment. That is when technologies to recycle solar panels started emerging.

Photovoltaic producers collaborated with governmental institutions and have come up with a few ways to tackle solar waste.

Solar Panel Waste


In fact, if recycling processes were not put in place, there would be 60 million tons of PV panels waste lying in landfills by the year 2050; since all PV cells contain certain amount of toxic substances, that would truly become a not-so-sustainable way of sourcing energy.

In the following interactive map, you can check out which countries produce the most solar panel waste: https://www.google.com/maps/d/u/0/viewer?mid=1g4J5np6uhrHh-PmC-K4fB7QmJvU&femb=1&ll=19.76800158249233%2C15.953076499999966&z=2



The common belief of solar panels not being recyclable is, therefore, a myth. It is, however, a process that needs time to be widely implemented and requires further research to reach its full potential of adequately recycling all solar panel components. For that reason, it is necessary that designing and recycling units collaborate closely so that the ability to recycle is ensured by mindful eco-designs.


Solar Panel Recycling Processes


There are two main types of solar panels, requiring different recycling approaches. Both types—silicon based and thin-film based—can be recycled using distinct industrial processes. Currently, silicon based panels are more common, though that does not mean that there would not be great value in the materials of thin-film based cells.


Research studies conducted on the topic of recycling solar panels have resulted in numerous technologies. Some of them even reach an astonishing 96% recycling efficiency, but the aim is to raise the bar higher in the future.


Silicon Based Solar Panel Recycling


The recycling process of silicon-based PV panels starts with disassembling the actual product to separate aluminium and glass parts. Almost all (95%) of the glass can be reused, while all external metal parts are used for re-molding cell frames. The remainder materials are treated at 500°C in a thermal processing unit in order to ease up the binding between the cell elements. Due to the extreme heat, the encapsulating plastic evaporates, leaving the silicon cells ready to be further processed. The supporting technology ensures that not even this plastic is wasted, therefore it is reused as a heat source for further thermal processing.


After the thermal treatment, the green hardware is physically separated. 80% of these can readily be reused, while the remainder is further refined. Silicon particles—called wafers—are etched away using acid. Broken wafers are melted to be used again for manufacturing new silicon modules, resulting in 85% recycling rate of the silicon material.


Thin-Film Based Solar Panel Recycling


In comparison, thin-film based panels are processed more drastically. The first step is to put them in a shredder. Afterwards, a hammermill ensures that all particles are no larger than 4-5mm, which is the size where the lamination keeping the inside materials together breaks, and hence can be removed. Contrary to silicon-based PV panels, the remaining substance consists of both solid and liquid material. To separate these, a rotating screw is utilised, which basically keeps the solid parts rotating inside a tube, while the liquid drips into a container.


Liquids go through a precipitation and dewatering process to ensure purity. The resulting substance goes through metal processing to completely separate the different semiconductor materials. The latter step depends on the actual technology used when producing the panels; however, on average 95% of the semiconductor material is reused.


Solid matters are contaminated with so-called interlayer materials, which are lighter in mass and can be removed through a vibrating surface. Finally, the material goes through rinsing. What is left behind is pure glass, saving 90% of the glass elements for easy re-manufacturing.


The Future Benefits of Solar Waste Management


Now that we know that solar panels can be recycled, the question is what other benefits it brings to the economy—if any. Obviously, a proper solar panel recycling infrastructure will need to be established to manage the large volumes of PV modules that will be disposed in near future. Once that is in place, we’ll be witnessing several positive factors and new opportunities within the economy.


Not only will PV recycling create more green job opportunities but also approximately £11 billion in recoverable value by 2050. This influx will make it possible to produce 2 billion new panels without the need to invest in raw materials. This means that there will be the capacity of producing around 630 GW of energy just from reusing previously used materials.


Thanks to constant solar energy price drops, more and more households and businesses choose to invest in solar power systems. As a result, even more economic opportunities in the solar cell recycling sector will emerge.

The original blog can be viewed online.


Disclaimer: Guest blogs represent the opinion of the writers and may not reflect the policy or position of the Northeast Recycling Council, Inc.

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By Cole Rosengren October 15, 2025
Stress levels are high for CPG companies and packaging groups as extended producer responsibility programs unfold in multiple states. This was on display at three recent Boston events hosted by the Sustainable Packaging Coalition, How2Recycle and the Northeast Recycling Council, with questions flying about costs, policy harmonization and relationships with regulators. Paul Nowak, executive director of GreenBlue, adopted the role of support group leader for a room full of representatives from many of the world’s largest CPG companies in his opening talk at SPC Advance. He reminded them that “you are not alone” and urged them to take the long view on this major industry shift. “What you see at the end of the change is not what you see during the change,” said Nowak, drawing on examples from prior industry shifts as well as other major life events. “You are in this uncomfortable period right now where it’s not moving as rapidly as you would think and you don’t have the historic perspective yet of where it could go.” Sticker shock While CPGs are familiar with EPR costs from programs in other countries, the complexity and scale of the U.S. rollout in seven states is presenting its own unique challenges. Oregon is the only state that’s begun collecting fees, and already the costs are high. Circular Action Alliance, the producer responsibility organization selected for the majority of state programs to date, estimates a budget of $188 million in the program’s first year, with that figure growing in the years ahead. Charlie Schwarze, board chair for CAA and senior director of packaging stewardship at Keurig Dr Pepper, said the costs are starting to resonate with major companies. KDP, for example, has been working to sort out different aspects of its packaging in terms of licensing arrangements, private label manufacturing partnerships and other factors. This requires a close relationship with the company’s finance, R&D and procurement teams to gather data and make cost projections. “It’s been a bit of a slow-moving process because the dollars, at least in 2025, are not extremely notable. But they’re going to get bigger pretty quickly,” he said, citing Colorado and California’s programs on the horizon. Shane Buckingham, chief of staff at CAA, said it will be months until companies have a better sense of the true costs. The group set initial fees for California, which won’t be invoiced until August 2026, but those fee levels are expected to change once SB 54 regulations are finalized . “Please don’t take our early fee schedule of being indicative of what your cost will be in 2027, it’s just a drop in the bucket,” he said. “The fees are going to go up significantly in California because we have to fund a $500 million [plastic] mitigation fund, we’re going to have system funding to improve recycling, source reduction, reuse, refill.” SPC Director Olga Kachook encouraged attendees to think about these fees as motivation to innovate rather than a burden. In her view, avoided fees through ecomodulation could be viewed as “possible new investment capital” for covering the costs of material switches, R&D, MRF testing, consumer education campaigns and more. “We can innovate to those lower fees by switching to incentivized materials and formats and then we can reinvest the savings back into sustainable materials and infrastructure that seemed out of reach,” she said. Searching for harmony All three events also featured ample discussion about if or how aspects of current EPR programs could be better aligned. While regulators are working to align certain definitions where possible, they also noted that certain state programs were uniquely designed for a reason. David Allaway, senior policy analyst at the Oregon Department of Environmental Quality, said during NERC’s Rethink Resource Use Conference that he sees a potential benefit to harmonizing ecomodulation approaches in some cases. But at the same time, he said, “I fear that the push for harmonization will lead to a race to the bottom” by potentially limiting the ability for states to craft policies based on their respective needs. As for those who critique other unique aspects of Oregon’s law, such as responsible end market requirements , Allaway said “that’s not negotiable for us,” as market issues were a leading motivation for the law in the first place. Allaway said Oregon’s system was established based on specific regional priorities, such as putting an end to exporting certain types of material that led to dumping in other countries. The state’s approach to ecomodulation and life cycle analysis is also informed by years of work on greenhouse gas inventories and consumption-based accounting, which challenges many commonly held assumptions about recyclability . Each state has its own unique factors in terms of collection access and market infrastructure. Colorado, for example, has many areas that will be getting recycling service for the first time. Maine also has many rural areas that previously had access to recycling but lost it in recent years. Meanwhile, in Maryland, collection service may be more common but local end markets are lacking for certain commodities. Jason Bergquist, vice president of consulting firm RecycleMe, said during the NERC event that he hears concerns from clients about where this is all headed. “If we get to a couple years down the road and we’ve got, let’s just pretend, 25 states with EPR, with different deadlines, different [covered material] lists, different definitions, different ecomodulation — my concern as a fan of EPR is that the pushback will be so significant that it could get existential for the producers,” he said, in terms of costs and compliance management. At the same time, Bergquist said the experiences of packaging EPR in Europe and Canada show it may take years to get toward any kind of harmonized system. Back at SPC Advance and the co-located How2Recycle Summit, California loomed large throughout the week when it came to these questions. Karen Kayfetz, chief of CalRecycle’s product stewardship branch, said regulators from different EPR states try to talk to one another as much as possible but in some cases they’re limited by the statutes that created these programs. “We each have our own legal frameworks we have to work within,” she said. “So harmonization starts with the legislatures, and that is not our responsibility, but it is something that we could see change and evolve over the coming years.” As all of these complex questions get worked out, Kayfetz reminded attendees that CalRecycle may currently be “the face” of the program but that’s not the long-term goal. “What would make me the happiest is if you leave here thinking ‘let’s go talk more to CAA.’ Because EPR is a policy mechanism that is meant to be a public-private partnership where the public entity ... is overseeing the PRO,” she said. “They are your partner and we are their police.” In a separate session, CAA’s Buckingham described the work of ramping up different state fee and reporting programs as building a plane while flying it. The group is working to streamline its own reporting processes as much as possible, but they and others anticipate things will only get more complicated in the near term. “2026 will bring with it a new set of EPR laws and recycled content laws,” predicted KDP’s Schwarze, “and they’re going to be different than what we have right now.” Read on Packaging Dive.
September 17, 2025
The City of Medford won the 2025 Environmental Leadership Award for Outstanding Community presented by the Northeast Recycling Council, for its innovative work to reduce waste and create a more sustainable waste collection system through the City’s free curbside composting program. “I'm thankful to our team at City Hall, the Solid Waste Taskforce, our consultants Strategy Zero Waste and our volunteers for working so hard to launch our curbside composting program and making it such a meaningful success for our community,” Mayor Breanna Lungo-Koehn said. “This award shows that the work we’re doing in both composting and recycling is having real, transformative effects on how our community thinks about waste and the steps we’re taking to create a more sustainable environment for the future. We are honored to be recognized by the Northeast Recycling Council for these efforts.” Each year, NERC honors a community, an organization, and an individual for their outstanding contributions to recycling education and innovation. This year will mark the 9th annual Environmental Leadership Awards Ceremony, recognizing individuals and organizations who help further NERC’s waste and recycling goals. “Our committee is wholeheartedly impressed by the work of the City of Medford, and how important and impactful that work is for the community,” said Sophie Leone, Development and Program Manager at NERC. “It is a perfect representation of NERC’s mission to minimize waste, conserve natural resources, and advance a sustainable economy through facilitated collaboration and action and we are very excited to bestow the City of Medford with this award.” You can read more about the Environmental Leadership Awards here . And if you haven’t signed up for Medford’s free curbside composting program, you can do that at medfordcomposts.com . Read on MedfordMA.org.
By Resource Recycling September 10, 2025
In the Northeast, recycled commodity prices continued to decline in April-June, with MRFs experiencing an average decrease of nearly 6% compared to the first quarter of 2025, according to the Northeast Recycling Council’s (NERC) second-quarter MRF Values Survey Report. NERC’s 25th quarterly report analyzed data from 19 MRFs across 12 states, excluding two facilities from the average blended value “because they did not market enough commodities within Q2 to provide a representative comparison with other MRFs.” Compared to the previous quarter, the responding MRFs reported average values per ton for blended recyclables with residuals at $82.68, a decrease of 7.74%, or $96.21 per ton, a 5.99% decline without residuals. Thirteen of the 17 MRFs contributing to the weighted average were single-stream, while four operated on a dual-stream/source-separated basis. In the Northeast, dual-stream facilities reported a blended value of $99.74 without residuals and $86.52 including residuals, experiencing decreases of 7% and 7.16% from the previous quarter, respectively. Single-stream MRFs recorded blended values of $95.08 without residuals, down 5.7%, and $81.28,down 8.3%, with residuals. Factors such as tariffs and weak demand have led major waste haulers to adjust their forecasts, anticipating challenges due to economic uncertainty for the remainder of 2025. This dip in commodity prices was reflected in second-quarter earnings reports, with four companies reporting an average year-over-year decrease of 15% in commodity values. Houston-based WM projected a $15 million decline in earnings before interest, taxes, depreciation, and amortization due to softening demand. However, the emergence of new and upgraded polymer facilities is enhancing processing capabilities, driven by the expectation of high demand for recycled PET. A version of this story appeared in Resource Recycling on Sept 9. Read on Resource Recycling.