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 Chaz Miller January 5, 2026
2025 was not a good year for recycling markets. Prices went down for everything in your bin. The only real difference is how badly each material got hit and why. Let’s start with paper, the most important recyclable in terms of weight and volume. Old Corrugated Container (OCC, boxes) prices started rising in the spring of 2023, peaking for several months in the summer of 2024. A long slide then began and lasted for almost all of 2025. Prices for Residential Mixed Paper (RMP) did the same. Nationally, OCC is now at $46.88 per ton and RMP is $20.31 a ton. OCC went down by a third while RMP went down by half. The “good” news is that these prices have been lower in the last five years. RMP, after all, had a negative value early in 2020 and then for a few months in late 2022. (All prices in this article are national prices from RecyclingMarkets.net as of December 31). The 2023 rise and then fall of recycled paper prices was the result of increased capacity to use OCC and RMP as raw materials along with declining overall demand for boxes. New recycled content paper capacity started coming online in 2017, peaking in 2023 when five new mills opened. Those new mills, eager to build up supply lines, caused prices to go up. Existing capacity had no choice but to also pay more. At the same time, demand for new boxes was going down. In fact, box demand has been going down for four years. Something had to give. In 2025, nine existing paper mills announced they would be closing. Old, more expensive, and less efficient to operate, they couldn’t compete with the new mills. All four plastic resins lost value but the impact varied by resin. Natural HDPE, (mostly milk jugs) lost a third of its value. Polypropylene (mostly dairy products) went down by 40 percent. Color HDPE (consumer products such as detergent and shampoo) went down by 48 percent and PET beverage bottles went down by two thirds. Natural HDPE is 46.81 cents a pound. Even at the lower price, this resin remains in a good price range. PET and polypropylene are both 5.38 cents a pound. Recycled PET rose steadily from the summer of 2023 to the summer of 2024. Then it declined equally steadily until it reached a record low of 4.19 cents in early October of this year. Cheap recycled resin imports, too much domestic virgin PET resin and lower summer beverage demand gave prices nowhere to go but down. Recycled PET resin imports are now subject to tariffs, which may be responsible for its recent increase. Nonetheless, its price remains in the doldrums. Polypropylene generally has a low price except when new capacity is coming online and building up capacity. For 46 of the 72 months since January 2020, its price has been less than a dime a pound. For 17 months, it’s been at its current not very good price or less. Color HDPE is 2.81 cents a pound. This resin depends on construction markets because the color can’t be taken out of the resin. New housing starts have been in decline for four years. It also set a record low price in 2025. Aluminum and steel cans are recycling market’s happy place. Their prices went down by 9.3 and 8.7 percent. Aluminum cans have a national average price of 78.75 cents while steel cans go for $158.75 a ton. Over the last few years, the aluminum industry smartly expanded into non-alcoholic beverages such as water and fruit juices. Those new uses keep demand up. After sliding last year, steel can prices stabilized. As for glass, it’s price rarely changes. Clear glass bottles go for $38.56 a ton, brown for $27.19 and green for $10.31. Those prices all rose slightly in the spring of 2023. Mixed glass from single stream curbside collection has a “negative tipping fee” of $25.31 a ton. In other words, the MRF pays the end market to buy it. That price became slightly more negative this year. The glass industry has been in decline for some time, a victim of lighter weight aluminum cans and plastic bottles. In addition, Americans are drinking less alcohol. That’s the biggest user of glass bottles. Our beleaguered economy is hurting recycling markets. Recyclables are just raw materials looking for a buyer. Those buyers are purchasing managers making a bet on how much raw materials they will need for their companies’ products. This can be, say, aluminum cans, boxes to ship those empty cans to beverage companies or boxes to deliver filled cans to retail outlets. When buyers are optimistic, they buy more. In 2025, they were gloomy. Prices of all of these recyclables have been hurt by declining unit sales of consumer products and the resulting decline in box demand. We are in a “ K-shaped” economic recovery from the pandemic. This means the recovery’s impact varied by economic status. Wealthy households now account for half of consumer spending on goods and services. They spend more on “services” such as trips and entertainment than on goods. Lower income households, however, are squeezed between paying for necessities such as housing, health care, insurance and food before everything else. They are pinching their nickels and looking for bargains. Simply stated, due to the K-shaped recovery, sales are down and we need fewer packages and shipping boxes. So what will happen in 2026? The loss of so much older paper capacity is bringing demand and supply back into a better balance. Look for prices to rebound a bit. Plastic prices will remain soft barring a reversal of the K-shaped recovery. PET prices, have the most potential if beverage demand returns. Color HDPE, will remain in the doldrums until new housing construction increases. Natural HDPE will stay where it is or go up a bit. Polypropylene will probably stay where it is. As for glass, change isn’t likely. I realize that’s not optimistic. Given the projected rise in health, insurance and energy costs this year, Americans will still be pinching pennies. Box production will decline as unit sales fall. Our K-shaped economy needs to become a rising economic tide lifting all boats. Recyclables, afterall, are commodities subject to the economy’s ups and downs. When our economy truly rebounds, recycling markets will thrive again. Read on Waste360.
By Waste Dive December 9, 2025
MRFs in the Northeast United States reported a decrease in average prices for nearly all recycled commodities — with glass and bulky rigids providing the rare bright spot — during the third quarter of 2025, according to a report from the Northeast Recycling Council. This continues the downward trend reported in the region since Q2. In Q3, average blended commodity value without residuals was $75.14, a decrease of 21.9% from the previous quarter. When calculating the value with residuals, prices were $60.16, a decrease of 27.24%, says the quarterly MRF Commodity Values Survey Report. Single-stream MRFs saw values decrease sequentially by 23.32% without residuals and 28.86% with residuals. Dual-stream or source-separated MRFs saw decreases of 17.33% without residuals and 21.76% with residuals compared to last quarter. The report includes information from 19 MRFs representing 12 states: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and Virginia. The NERC report is meant to offer a regional look at price trends and is a part of the group’s ongoing work to promote and boost recycled commodity supply and demand in the Northeast. It surveys a variety of MRFs in numerous markets, including those in five states with beverage container deposit laws, which it says affect material flows into MRFs. NERC says its reports are not meant to be used as a price guide for MRF contracts because it “represents the diversity of operating conditions in these locations.” NERC adopted a new report format at the beginning of 2025 that now provides average prices for specific commodities in addition to aggregate values. According to the Q3 report, most commodity categories fell significantly, with the exception of glass and the “special case of bulky rigids.” The average price for bulky rigids in the quarter was $43.26, a 93% increase from the previous quarter. NERC did not offer insight into the increase. The average price for PET was $125.58 in the quarter, down 60%, while prices for Natural HDPE fetched about $955.31 a ton, down 46%. OCC saw an average price of about $86.23, down 10%, according to the report. Major publicly-traded waste companies echoed similar commodity trends during their Q3 earnings calls . Casella, which operates in the Northeast and mid-Atlantic, reported that its average recycled commodity revenue per ton was down 29% year over year in Q3. To reduce the impact from low commodity values, the company typically shares risk with customers by adjusting tip fees in down markets. Recent upgrades at a Connecticut MRF helped raise revenue for processing volumes in the quarter, executives said. Meanwhile, Republic Services is planning to build a polymer center for processing recycled plastic in Allentown, Pennsylvania, next year. During the Q3 earnings call in October, executives said they expect strong demand at such centers from both a pricing and volume standpoint, despite the decline in commodity prices. The company already has similar polymer centers in Indianapolis and Las Vegas, which consume curbside-collected plastics from Republic’s recycling centers and produce products such as clear, hot-wash PET flake and sorted bales of other plastics. Read on Waste Dive.
By Megan Fontes December 4, 2025
NERC’s Material Recovery Facilities (MRF) Commodity Values Survey Report for the period July - September 2025 showed a continued decline in the average commodity prices for Q3 2025. The average value of all commodities decreased by 21.90% without residuals to $75.14 and by 27.24% with residuals to $60.16, as compared to last quarter. Single stream decreased by 23.32% without residuals and 28.86% with residuals, while dual stream / source separated decreased by 17.33% without residuals and 21.76% with residuals compared to last quarter. Dual stream MRFs saw a slightly smaller decrease with residuals than single stream. Individual commodity price averages this quarter denote the decrease felt across all commodity categories apart from glass and the special case of bulky rigids.