A new global study finds that solar panel recycling could recover billions of dollars in materials and cut emissions by 2060.
Solar panel recycling could turn a looming waste crisis into a global windfall, according to a sweeping new study. Researchers modeled 1,708 recycling scenarios across 32 regions worldwide. They found that recovered materials could generate nearly $1 trillion in economic benefits.
Global solar installations are growing rapidly, faster than almost any other energy source today. Some researchers expect photovoltaic power, known as PV, to become the dominant electricity source by 2050. That growth means millions of aging panels will soon need a destination.
The study, published in the journal Nature, projects between 297 and 402 million tonnes of discarded panels by 2060. Middle-income countries such as China are expected to generate much of that waste after 2040. Left unmanaged, this waste could pose serious environmental risks.
Today, most retired solar panels end up in landfills once they stop working. There, they can leak toxic metals such as lead and cadmium into soil and water. Proper solar panel recycling could prevent much of that pollution before it starts.
A few companies and countries are already testing what large-scale solutions look like. Veolia runs dedicated PV recycling facilities in France and Michigan. China, the world’s largest solar panel producer, now requires manufacturers to help collect and treat retired panels.
Several Chinese solar manufacturers have also launched their own pilot recycling projects. These early efforts show that industrial-scale solar panel recycling is technically possible today. Scaling that capacity worldwide remains the bigger challenge ahead.
Solar panels contain valuable materials, including silicon, silver, copper, and tellurium. These metals could be recovered and reused to build new panels. Silicon and silver hold the most value, though current technology struggles to recover either at high purity.
Recycling most panels today still costs more than the recovered materials are worth. The study estimates that global recycling will not break even before the mid-2030s. Even so, researchers project cumulative net benefits of $529 to $935 billion by 2060.
Beyond financial gains, better recycling could meaningfully shrink the industry’s carbon footprint. The study estimates emissions cuts of up to 3.3 billion tonnes of carbon dioxide equivalent. That reduction is more than two-thirds higher than sticking with current waste practices.
These benefits are not currently shared equally worldwide. Wealthier regions such as the European Union, United States, China, Japan, and South Korea already have strong recycling infrastructure. Many lower-income regions lack the technology and instead rely on outsourcing their waste.
Solar panel recycling could cut up to 3.3 billion tonnes of carbon dioxide equivalent compared to current waste practices, but the benefits remain unevenly distributed, with wealthier regions already equipped with strong recycling infrastructure while lower-income countries are left outsourcing their growing panel waste. Photo by Hoan Ngọc on Pexels.
Combining region-specific recycling technology with some outsourcing produces the largest global benefits overall. But outsourcing waste to places with cheaper technology can also widen existing inequality. A declining subsidy model, which phases out support as recycling matures, could help balance these outcomes.
The research team included scientists from universities in China, Australia, and Sweden. Their model tracked material prices, trade flows, and subsidy policies across every region studied. This broad approach let them compare dozens of possible futures rather than a single forecast.
Recovering materials through solar panel recycling could also ease pressure on global mineral supply chains. Silver, copper, and tellurium all face rising demand from other clean energy technologies. Reusing what already exists could reduce the need for new mining in sensitive landscapes.
Researchers point to international frameworks, including the Paris Agreement, as tools for spreading technology and funding to lower-income regions. Coordinated support could help more regions build their own solar panel recycling capacity instead of depending on others indefinitely.
Policymakers now have a clearer roadmap than before this study appeared. Investing early in recycling infrastructure could pay off well before most panels reach retirement age. That head start matters most for regions currently left out of the recycling economy.
Solar power’s rapid growth is already reshaping how the world generates electricity. Solar panel recycling could soon reshape what happens once those panels wear out. Planning for that shift now could turn tomorrow’s waste pile into today’s opportunity.
