The Elements of Innovation Discovered
Metal Tech News – March 18, 2026
The International Renewable Energy Agency estimates that as much as 78 million metric tons of end-of-life solar panel waste could accumulate globally by 2050.
RZOLV Technologies’ solution fits into the middle leaching step of solar panel recycling. The next phase of testing will evaluate downstream purification, along with recycling its proprietary leaching solution.
From rooftop applications to grid-scale power plants, photovoltaic solar panels are essentially high-grade silver ore averaging more than half an ounce of silver per panel. Recent testing has demonstrated that RZOLV Technologies Inc.’s water-based solution can efficiently recover nearly 90% of the silver, pointing to a potentially efficient pathway for recycling a rapidly growing stream of solar waste.
In recent testing, end-of-life photovoltaic (PV) solar panels were crushed into fine concentrate with an average grade of 977 grams of silver per metric ton, which is considered exceptionally high-grade at modern silver mines. RZOLV’s proprietary leaching solution extracted 89.8% of the contained silver after just a few hours of stirring at 72 degrees Fahrenheit.
“These early results are encouraging because they show high silver recovery alongside materially improved kinetics under practical agitated conditions,” said RZOLV President and CEO Duane Nelson. “Photovoltaic recycling economics increasingly depend on recovering the highest-value fractions efficiently.”
Testing also highlighted the impact of solution concentration on reaction kinetics. While overall recovery reached 89.8%, a higher dosage dissolved silver significantly faster – extracting 82.2% within one hour, compared to 81.3% recovered over four hours using a standard concentration.
“While these are preliminary bench-scale results, the data support proceeding with structured follow-on work to define the operating window, quantify consumption behavior, and evaluate downstream recovery and solution recycle performance,” said Nelson.
RZOLV Technologies’ solution fits into the middle leaching step of solar panel recycling. The next phase of testing will evaluate downstream purification, along with recycling its proprietary leaching solution.
Developed as a potential alternative to more toxic leaching agents such as cyanide, RZOLV’s solution is being evaluated as a cleaner method for recovering metals from ores and electronic waste.
The timing of the company’s latest tests aligns with a rapidly approaching surge in end-of-life solar panels. The International Renewable Energy Agency estimates that as much as 78 million metric tons of PV waste could accumulate globally by 2050.
At an estimated 19 ounces of silver per metric ton of installed panels, that waste stream could contain roughly 1.5 billion ounces of silver, valued at more than $110 billion at current prices. Recovering even a portion of that metal could help offset growing demand pressures on primary silver supply chains tied to both industrial applications and energy transition technologies.
The amount of solar panels expected to reach the end of their life over the coming two decades has been likened to a tsunami that will overwhelm PV solar recycling infrastructure.
RZOLV’s testing suggests its leaching approach could offer an efficient and cleaner method of returning silver from end-of-life solar panels back into the global supply chain.
With more than 18 years of covering mining, Shane is renowned for his insights and in-depth analysis of mining, mineral exploration, and technology metals.
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