Updated data on installed solar capacity, expected photovoltaic waste, limits of the WEEE system, recoverable critical raw materials, and industrial delays in the recycling of photovoltaic panels in Europe

Author: Marco Arezio. Expert in circular economy, polymer recycling, and industrial processes for plastics. Founder of the rMIX platform, dedicated to the enhancement of recycled materials and the development of sustainable supply chains.

Date: March 26, 2026

Estimated reading time: 19 minutes

Europe has won the installation race, but not the end-of-life one

For years, European photovoltaics have been presented as one of the most concrete proofs of the energy transition. And indeed, the installed-capacity figures are impressive: the Union’s solar capacity rose to 272.5 GW in 2023, to 338 GW in 2024, and to 406 GW in 2025, surpassing the intermediate target of the European solar strategy, which aimed for more than 380 GW by 2025 and set at least 700 GW by 2030 as a benchmark.

This means that, in just a few years, Europe has built up an immense material stock of glass, aluminum, polymers, copper, silicon, and small but valuable quantities of silver, a growing share of which will exit the use cycle over the coming decades. The problem is that public narrative has focused almost entirely on the energy produced, and far less on the industrial management of what comes afterward.

This is the central point of the entire debate: photovoltaic waste will not surge because photovoltaics have failed, but precisely because they have succeeded. That is the European paradox. The faster the climate strategy accelerates, the closer the moment comes when the modules installed during the boom years will have to be collected, sorted, tested for possible reuse, disassembled, and recycled. This is neither a marginal nor a postponable issue, because large energy systems do not generate only electricity: they also generate future masses of technical waste that require plants, standards, logistics, capital, and end markets for secondary raw materials. The European Commission itself now presents solar power as a pillar of the transition, yet the picture of European WEEE shows that end-of-life management, taken as a whole, is still far from full industrial maturity.

Why an end-of-life photovoltaic panel is not a simple waste stream

A photovoltaic module is not just “a piece of glass with some metal,” as one may sometimes imagine. According to the average assumptions reported by Fraunhofer CSP for PV modules, the typical composition is around 70% glass, 13% aluminum, 10% plastics, 3% silicon, 0.5% copper, and 0.035% silver. At first glance, this might suggest simple, almost trivial recycling, because most of the weight consists of common materials. In reality, however, the industrial value of waste does not coincide with its weight: a large part of the mass is easy to recover, but the economically most interesting part is precisely the one that is hardest to extract cleanly and cost-effectively.

The module is in fact a layered composite, designed to withstand twenty or thirty years outdoors, not to be easily dismantled. Cells, encapsulants, backsheet, adhesives, frames, junction box, and metallic interconnections form an object that is robust in operation but complex in end-of-life treatment. The IEA PVPS design-for-recycling guidelines remind us that the composition of the backsheet is particularly important for recyclability: fluorinated polymers can generate fluorine-containing gases during thermal treatments, increase costs, and restrict process options, making pyrolysis more problematic. In other words, the issue is not only “how much material is inside,” but also “how it was assembled” and “through which process it can be separated without destroying the value of the components.”

This gap between mass recycling and quality recycling explains why photovoltaics cannot be approached with a purely weight-based logic. Recovering weight does not automatically mean recovering value. A plant may achieve high mass-recovery rates by focusing on glass and aluminum, and yet lose precisely the silicon and silver contained in the cells during the process. And this is where the end-of-life issue shifts from being an environmental topic to an industrial and geopolitical one: we are not talking only about waste to be disposed of properly, but also about materials that Europe should try to reinsert into its technological supply chains.

The numbers showing the gap between today’s flow and tomorrow’s

The current snapshot can even be misleading. The IEA PVPS report published in 2025, based on the most recent Eurostat data available at the time, indicates that in Europe, 48,395 tonnes of waste from photovoltaic modules were collected in 2022 across 18 countries. In the same framework, the data reported for 2022 show that Germany and Italy were already the two largest national flows recorded, with 16,430 and 21,493 tonnes collected respectively. These are real, significant volumes, but they are still small compared with the size of the installed stock and, above all, compared with what will arrive when the large plants built during the European expansion phase begin systematically leaving service.

Another recent analysis by the Joint Research Centre of the European Commission offers an even more explicit reading. For 2023, the JRC maps an EU photovoltaic capacity of 256,679 MW, PV waste collection equal to 88,665 tonnes, and identified recycling capacity of 169,608 tonnes per year, while the projected cumulative photovoltaic waste by 2050 reaches 36.23 million tonnes.

Industrial geography is also highly uneven: in the same table, the JRC assigns Germany 99,000 tonnes per year of recycling capacity, France 20,000, Spain 21,975, and Italy 5,600, despite the existence of very large installed parks. Even assuming these figures evolve rapidly, the message is clear: Europe already has a supply chain, but not yet a homogeneous, deep, and widespread network adequate to the future scale of the problem.

The expected scale jump is in fact the real element that breaks the apparent balance. According to the FutuRaM/WEEE Forum report, the flow of photovoltaic panels within European electronic waste rises from about 0.15 million tonnes in 2023 to 2.2 million tonnes in 2050. The same document emphasizes that photovoltaic panels are the WEEE stream expected to grow the most. If this forecast is placed alongside the recycling capacity currently mapped by the JRC, the order of magnitude of the mismatch becomes evident: the industrial levels available today are still calibrated to a present of relatively low volumes, whereas the future will require a much broader, continuous, and specialized machine.

More generally, IRENA and IEA PVPS have long reminded us that the major increase in photovoltaic waste will emerge around 2030 and that Europe will begin generating significant volumes before other regions precisely because of its early adoption of solar power. In their historical global scenario, cumulative module waste could reach 60–78 million tonnes by 2050. Even if forecasting methods vary, the direction is unambiguous: the peak is not a suggestion, but a structural passage already written into the installed stock.

European regulation exists, but that does not mean the system is ready

Europe has a real advantage: it is not starting from zero. The end-of-life of PV modules is included within the WEEE framework, based on extended producer responsibility, and the IEA PVPS report recalls that the European system imposes separate collection, traceability, financing obligations, and minimum targets: 65% collection relative to the average amount placed on the market in the previous three years or, alternatively, 85% of WEEE generated; in addition, 85% recovery and 80% recycling or preparation for reuse for collected waste. Legally speaking, therefore, Europe is ahead of many other areas of the world. But a good rule does not automatically coincide with good industrial performance.

Official European data show that the problem is not the lack of rules, but the difficulty of making them work in a homogeneous and credible way. Eurostat indicates that in 2023 the overall WEEE collection rate in the EU was 37.5%, far below the 65% set by the directive under the method based on products placed on the market; in the same year, only Bulgaria, Slovakia, and Latvia reached that target, while Poland was compliant under the alternative method based on 85% of WEEE generated. The European Commission, in its 2025 evaluation of the WEEE Directive, is even more explicit: almost half of the WEEE generated is not collected, the majority of Member States do not meet collection targets, and only around 23% of recycling plants in the EU apply high-quality treatment standards.

This matters enormously for photovoltaics, because panels do not exist in a system separate from the rest of electronic waste: they depend on national registers, EPR systems, collection centers, authorized plants, shipment controls, technical standards, reuse rules, and enforcement capacity. If the general engine of European WEEE still shows insufficient collection, uneven quality, and limited recovery of critical raw materials, it is difficult to argue that the photovoltaic subsystem is truly ready to withstand the coming two decades without disruption.

Recycling a lot does not mean recycling well

The most delicate point, often left unsaid, is that Europe today is better equipped for recycling “by weight” than for recycling “by value.” The JRC observes that the average photovoltaic recycling practice is still limited to recovering cables, aluminum frames, glass, and copper, while the more advanced processes are those able to separate the materials contained in the cells as well, such as metallic silicon and silver. Fraunhofer CSP goes in the same direction: at the current industrial stage, the materials recovered on an industrial scale are above all glass, aluminum, and copper, while silicon and silver are still often lost. This means that the European supply chain, although it exists, is not yet fully oriented toward high-value recovery of the most interesting materials.

Even the most advanced market, the German one, is described by IEA PVPS as a system in which the recycling of silicon modules still uses schemes partially adapted from other industries, especially from the mechanical recycling processes of flat glass. It is true that the report points to important developments, such as the commissioning in 2023 of the Reiling plant dedicated to silicon modules and the conversion in 2025 of a pilot line to recover silicon on an industrial scale, but these very advances show how much the sector is still in a phase of consolidation rather than one of widespread full maturity across the continent.

The design of the modules themselves further complicates the picture. The IEA guidelines on design for recycling underline that materials such as fluorinated backsheets increase the costs of thermal treatment or restrict the options available. In practical terms, this means that end-of-life quality is largely decided already at the design and purchasing stage. If the modules placed on the market today are not designed for disassembly, traceability, and recyclability, the European supply chain of 2040 will find itself handling waste that is intrinsically difficult. For this reason, the discussion on end of life cannot remain confined to the last link in the chain: it must enter ecodesign, product, and procurement policies.

The bottleneck is economic even before it is technological

The most common mistake is to think that the problem is only technical, as if it were enough to “invent a better machine.

” In reality, the bottleneck is also economic and logistical. IEA PVPS notes, in the German case, that one of the brakes on plant profitability has been the low and unstable inflow of end-of-life modules, a condition that makes the operation of recycling lines financially difficult. This is a typical contradiction of emerging supply chains: when waste volumes are still low, the scale needed for real investment is not reached; when waste volumes become large, the risk is discovering that too much time has been lost.

The JRC confirms this reading with a very frank analysis. In its review of the challenges of PV recycling in Europe, the most frequently cited weaknesses concern collection, the inefficiency of some technologies, fragmented EPR enforcement among Member States, economic difficulties due to today’s low volumes and high capital requirements, as well as still-fragile markets for recovered materials. Added to this is a risk that is often underestimated: the illegal export of defective or exhausted modules to countries with weaker environmental controls, a phenomenon that removes material from the formal European chain and weakens its economic sustainability.

The picture becomes even more delicate if one considers that the economic composition of modules is changing. The JRC itself identifies among the threats the decline in the content of precious or higher-value metals in more recent panels, a factor that can worsen recycling profitability. This is an interesting paradox: technologically more efficient modules, or modules more optimized in their use of metals, may be beneficial for electricity production, but can reduce the industrial margin available for end-of-life recovery if incentives and higher-quality standards are not built at the same time.

The real battle is over critical raw materials

When end-of-life panels are discussed, people still tend to think mainly of waste risk. In reality, there is also a risk of loss. For Europe, the strategic issue is not only to avoid landfill, dispersion, or improper treatment, but also not to let silicon, copper, aluminum, and silver leave the continent when they could be brought back, at least in part, into industrial supply chains. In its 2025 evaluation of the WEEE Directive, the Commission highlighted precisely this: low WEEE collection translates into a missed opportunity to recover critical raw materials, and current targets are not doing enough to incentivize the recovery of valuable secondary raw materials.

On this point, photovoltaics are emblematic. The JRC directly links the sector’s circularity to the need to recover critical materials and points out that current average recycling does not sufficiently valorize the materials in the cells, whereas more advanced processes could do so. Fraunhofer, for its part, shows that modules contain a small but strategic share of silver and a more substantial share of high-purity silicon, materials that do not weigh much in tonnage terms but can weigh enormously in terms of industrial value and supply security. If Europe wants an industrial policy for solar power and not only an installation policy for solar power, the recovery of these materials must become an explicit objective.

It is no coincidence that IRENA and IEA PVPS estimated years ago that the net benefits of including photovoltaic panels within the European WEEE framework could reach as much as €16.5 billion by 2050, precisely to the extent that high-value recycling succeeds in going beyond simple bulk pretreatment. That figure must be read with caution because it depends on scenario assumptions, but the message remains highly relevant: end of life is not merely a cost to be socialized; it can become an industrial supply chain capable of creating value, jobs, and material resilience.

What Europe should do now, before the peak really arrives

Saying that Europe is not ready does not mean saying that it is immobile. More precisely, it means that its system is still incomplete in relation to the scale of the problem coming. To close the gap, the first step should not simply be raising weight-based targets, but refining them: more targeted objectives are needed for the recovery of critical raw materials, not only for the overall weight recovered. The JRC identifies among the opportunities precisely the introduction of material-specific targets, incentives for high-value recycling, harmonization of rules among Member States, and strengthening of treatment standards.

The second step is traceability. The European supply chain needs to know with greater precision what is coming in, where it is located, in what condition, and with what composition. On this front, the European work on the “recyclability index” of modules, recalled by IEA PVPS within the framework of ecodesign expected for the European market, moves in the right direction: shifting the end-of-life issue from the last stage of the cycle to the moment of design, documentation, and market placement. Without product passports, dismantling standards, and reliable information on composition, industrial recycling will continue operating too often in the dark.

The third step is territorial. Europe cannot think of managing tens of millions of tonnes of future cumulative waste with just a few national poles or with capacities that are highly unbalanced among major markets. Regional hubs, logistics corridors, and simpler rules for cross-border transport to qualified plants are needed, as well as a much clearer distinction between modules suitable for second life, damaged modules to be sent immediately to recycling, and modules to be decommissioned במסגרת repowering or revamping. As long as reuse, testing, certification, and recycling remain mixed in a gray regulatory area, the European supply chain will continue to lose efficiency and credibility.

Conclusion: the risk is not the absence of rules, but industrial delay

In the end, the thesis is simple. Europe is not unprepared because it has failed to understand the problem. It is unprepared because it understood it earlier on the regulatory level than on the industrial one. It included panels in the WEEE framework, set targets, activated producer responsibility, launched research, ecodesign, and the first dedicated plants. But the data also show that the general WEEE system collects too little, that treatment quality is still highly uneven, that average photovoltaic recycling recovers above all the easiest fractions, that the recovery of critical raw materials remains limited, and that future volumes will rise by an order of magnitude such as to put the current infrastructure under strain.

For this reason, the real political title of the issue is not “how to dispose of panels,” but “how to prevent the energy transition from producing a new dependence on badly managed waste and lost materials.” If Europe uses the next five to ten years to build a supply chain capable of collecting well, sorting well, and recovering well, the boom in end-of-life modules will become an urban mine. If, instead, it continues to trust that existing rules and a few scattered plants are enough, it risks discovering too late that leadership in installation does not at all coincide with leadership in circularity.

FAQ

Why is it said that Europe is not ready for the end of life of photovoltaic panels?

Because Europe has built an advanced regulatory framework, but the real WEEE collection and treatment system is still insufficient. Official data show that in 2023 the average WEEE collection rate in the EU was only 37.5%, while the Commission found that almost half of the WEEE generated is not collected and that the majority of Member States do not meet the expected targets.

When will the “avalanche” of end-of-life photovoltaic panels really arrive?

It has already started in part, but the most critical scale jump will be between 2030 and 2050. According to FutuRaM, photovoltaic panels could rise from about 150,000 tonnes of waste in 2022 to 2.2 million tonnes in 2050, becoming one of the fastest-growing WEEE streams in Europe.

Are photovoltaic panels really recycled or not?

Yes, they are recycled, but not yet in the most efficient and valuable way possible. Today, industrial recovery is concentrated mainly on glass, aluminum, and copper, while the recovery of silicon and silver remains more complex and less widespread, even though these are highly relevant materials from a strategic standpoint.

What is the real limit of photovoltaic panel recycling?

The limit is not only technical, but also economic and organizational. The JRC points to critical issues linked to still-limited infrastructure, fragmented regulation among countries, uneven enforcement, uncertain markets for recovered materials, and difficulties in investing in specialized plants when current volumes still do not guarantee full economies of scale.

Why are European weight-based targets not enough?

Because recovering a lot of weight does not necessarily mean recovering a lot of value. The easiest fractions to recover are often glass and aluminum, but the European Commission has acknowledged that the WEEE system has so far had a limited impact on the recovery of critical raw materials, while technical reports show that the advanced processes needed to better recover silicon and silver are not yet spread uniformly.

How large is the gap today between expected waste and recycling capacity?

According to the JRC report, identified recycling capacity in the EU is around 169,608 tonnes per year, while cumulative projected photovoltaic waste by 2050 reaches 36.23 million tonnes. This does not mean that all of this mass will arrive at once, but it clearly indicates that the European industrial network will have to grow considerably in depth, reach, and quality.

What should Europe do immediately to avoid the problem?

It should act on four fronts: increase actual collection, better harmonize EPR systems among Member States, push high-value recycling plants to recover critical materials as well, and increasingly impose design-for-recycling criteria and module traceability. European and IEA sources converge precisely on these points.

Sources

European Commission, Solar Energy

Eurostat, Waste statistics on electrical and electronic equipment

European Commission, DG Environment, Evaluation of the WEEE Directive

Joint Research Centre (JRC), There’s new waste coming from the transition to renewables – how to reuse and recycle it

Joint Research Centre (JRC), Deep Dive – Solar PV Circularity and Recycling Capacities in Europe

IEA PVPS Task 12, Status of PV Module Recycling (2025)

IEA PVPS Task 12, PV Module Design for Recycling Guidelines

Fraunhofer CSP, Prospects of PV Recycling in Germany

FutuRaM / WEEE Forum, 2050 Critical Raw Materials Outlook

IRENA / IEA PVPS, End-of-Life Management: Solar Photovoltaic Panels

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