A solar panel installed this spring will likely still be generating electricity when today’s kindergartners graduate from college. Panels are built to last 25 to 30 years, and the earliest rooftop and utility installations from the 2000s solar boom are now reaching the end of that run.

That first wave of end-of-life panels is the leading edge of a much larger, ongoing challenge, to recover and reuse the materials that convert the sun’s energy into electricity. Nearly everything inside those panels can be recovered and sold back into the supply chain. Today, very little of it is. The International Renewable Energy Agency (IRENA) projects that global solar panel waste could reach 78 million tons by 2050.

The U.S. Environmental Protection Agency expects the United States to generate as much as one million tons of panel waste by 2030 and up to 10 million tons by 2050, the second-largest national total in the world. IRENA estimated in 2016 that the raw materials reclaimable from end-of-life panels will be worth about $450 million globally by 2030 — enough to build some 60 million new panels — and will grow to $15 billion and roughly 2 billion panels’ worth of material by 2050.

What’s In a Solar Panel

Strip a crystalline-silicon module, the type that dominates the solar panel market, down to its components and most of what you find is glass. A panel is roughly 75 percent glass by weight, framed in aluminum and built with copper wiring, polymer layers, a plastic backsheet, the silicon cells themselves, and a junction box. The greatest value sits in the small fraction of these materials: silver, copper, high-purity silicon, plus tin and antimony, and in thin-film panels, tellurium and indium.

Older panels also carry trace lead in their solder, which the reason some are classified as hazardous waste when they break down, as Inside Climate News has reported. Thin-film modules from First Solar and a few others use cadmium telluride, which is stable in the panel but adds its own end-of-life handling requirements. Thin-film remains a small share of the market, under 5 percent globally, so crystalline silicon is the focus of most recycling efforts.

Recovering these materials matters well beyond saving landfill space. Recycled aluminum takes roughly 95 percent less energy to produce than aluminum smelted from ore, and recovered silver and silicon reduce the mining and refining that go into every new panel.

Several of those metals also sit on the U.S. critical-minerals list. The EPA notes that panels can contain aluminum, tin, tellurium, and antimony, with gallium and indium in some thin-film modules, much of which the country currently imports. Recovering them at home converts a disposal headache into a small but genuine piece of supply-chain resilience, and it does so close to where new panels are increasingly being manufactured.

Why So Few Panels Actually Get Recycled

The first obstacle is economics. Sending a panel to a landfill costs about $1 to $5; recycling the same panel runs roughly $15 to $45, according to National Renewable Energy Laboratory figures cited by Chemical & Engineering News (C&EN). Arizona State University researcher Meng Tao, who studies PV recycling, has put the gap plainly to MIT Climate: recycling a panel costs around $20 and yields about $10 to $12 in recovered materials. For a single rooftop system, the math today rarely favors recycling without subsidies.

The technical challenge compounds the financial one. The EPA describes recycling as three escalating steps: remove the aluminum frame and junction box; separate the glass from the silicon wafer using thermal, mechanical, or chemical methods; then purify the silver, silicon, copper, and other metals. Removing the frame is straightforward, and a lot of recycling stops there and the rest gets shredded and sold as low-value glass cullet, C&EN notes. Teasing the glass from the cells and then separating the silver and silicon is far harder, and no single commercial process yet recovers all of it cleanly.

Consequently, the United States currently recycles only about 10 percent of decommissioned panels, while the European Union recovers around 85 percent, according to Public Citizen. The encouraging counter-trend is the rapidly decreasing cost of panel recycling: one industry analysis from Solar Power World reports that the true-recycling costs declined by 42 percent over the past three years, and the most advanced facilities now recover up to 95 percent of a panel’s value.

Reuse offers a partial release valve. Panels that fail early or get swapped out during a system upgrade often still work, and a growing secondhand market resells them at a discount for off-grid, agricultural, and overseas projects. Keeping a working panel in service, or passing it to someone who will, sidesteps the cost-and-complexity problem entirely, which is why reuse remains a bigger share of outcomes compared to recycling.

Public investment is starting to bend the curve, too. The U.S. Department of Energy has funded a slate of PV recycling projects aimed at closing the gap, even as the National Renewable Energy Laboratory has projected that, without faster action, the country would still recycle only about a tenth of its panels by mid-century. The first matters because the second is not inevitable.

The Companies Building a Recycling Industry

A recent market map from MarketsandMarkets lists more than a dozen leading players in solar panel recycling, and reading it closely shows how young and mixed the field still is. It blends three kinds of company: panel manufacturers with their own take-back programs, dedicated PV recyclers, and global waste-management firms moving into the category.

First Solar anchors the first group. The U.S. thin-film manufacturer has run a closed-loop process since 2005, recovering more than 90 percent of each module’s materials in its panels, including the semiconductor itself, for reuse.

Among dedicated recyclers, SOLARCYCLE opened a high-throughput facility in Georgia in 2026 that recovers about 96 percent of a panel’s value — silver, copper, aluminum, and glass — and is scaling toward processing up to 5 gigawatts of panels a year, Solar Washington reports. We Recycle Solar runs a utility-scale plant in Yuma, Arizona, and plans to roughly quadruple its capacity by 2028. In Europe, ROSI, a French company, uses a thermal-and-chemical process to recover high-purity silicon and silver — the toughest materials to reclaim — and recently raised more than $20 million to build a 10,000-ton-per-year facility in Spain. Veolia and Germany’s Reiling round out the European side as larger waste and glass recyclers expanding into PV.

The arrival of so many well-capitalized firms signals that the waste stream is finally large enough to support an industry. The catch is that most of this capacity sits in Europe or at the utility scale, where project owners can absorb the cost, which leaves rooftop owners with fewer easy options for now.

Solar Recycling Companies in 2026

The Policy Gap

Much of the distance between 10 percent and 85 percent comes down to rules. The EU’s Waste Electrical and Electronic Equipment (WEEE) directive requires panel producers to finance the collection and recycling of every panel they sell in Europe. The United States has no equivalent federal framework.

That is beginning to change, slowly. In October 2023, the EPA announced it would add retired solar panels to its “universal waste” rules, a streamlined category for widely generated hazardous materials such as batteries and pesticides. The proposed rule was originally due in 2025; the agency’s current timeline pushed the proposal to February 2026 and a final rule to August 2027. Until it takes effect, panels can be landfilled as ordinary trash in most states.

A handful of states have moved on their own. Washington created a manufacturer-funded stewardship program that requires producers to take back panels at no cost to the owner, and California classifies end-of-life panels as universal waste requiring specialized handling, as Earth911 has documented. Texas and North Carolina have begun restricting panel disposal as well. For now, what happens to a retired panel depends heavily on where it was installed.

Federal law already reaches panels through the Resource Conservation and Recovery Act. Whoever discards one is technically responsible for determining whether it qualifies as hazardous waste — a determination that hinges on whether metals such as lead leach above regulatory limits in a standardized test. Many intact silicon panels pass and are not hazardous; some, especially older modules with lead-based solder, do not.

For a homeowner, the EPA’s guidance is more straightforward in the meantime: contact your installer or state environmental agency rather than guess.

What You Can Do

Whether you own a single rooftop array or manage a portfolio of sites, end-of-life options are improving. A few practical steps:

For homeowners and individuals

• Keep panels in service as long as they perform. Most modules keep producing well past their warranty period; replacing them early creates waste with little benefit.
• Reuse or resell working panels. A secondhand market exists for functioning modules, often sold at a discount. Reuse outperforms recycling on both cost and environmental impact.
• Let your installer handle logistics. If you are replacing panels, ask whether your installer offers take-back; many will palletize and ship modules to a recycler.
• Find a qualified recycler. Look for a dedicated PV recycler or an electronics recycler certified to the R2 or e-Stewards standard, which the EPA recommends.
• Know your state’s rules. Washington and California have formal programs; elsewhere, contact your state environmental agency before disposing of panels.

For businesses, installers, and project owners

• Build decommissioning and recycling into project contracts and budgets from the start, rather than treating end-of-life as an afterthought.
• Choose recyclers certified to SERI’s R2 or e-Stewards standards, and favor those that recover high-value materials over operations that simply downcycle the glass.

For communities and policymakers

• Support extended producer responsibility and universal-waste rules, and weigh in during the EPA’s public comment period on its proposed solar panel rule.

The materials inside a solar panel were mined, refined, and assembled at a real environmental cost. Recovering them closes the loop on an energy source designed to be clean from start to finish, and the infrastructure, companies, and rules to do it are finally catching up to the wave.

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• Source: https://earth911.com/how-to-recycle/recycling-solar-panels-in-2026-investments-paying-off/