USA Today Addressed this issue very well here: https://www.usatoday.com/story/news/investigations/2024/02/04/green-energy-fact-checked/72390472007/
Improved standards for solar panels and wind turbines mean both have much longer lifespans today than they did a decade ago. Panels typically last 30 to 35 years while turbines have a lifespan of about 30 years.
At that point, it’s true: They must be decommissioned and disposed of. But the trash this will eventually produce pales in comparison to that produced by households, coal ash and plastic waste.
Globally, municipal waste is expected to reach 70 billion metric tons by 2050, coal ash (the byproduct of burning coal) more than 45 billion metric tons and plastic waste 12 billion metric tons, a study published in the journal Nature Physics in October 2023 found.
In comparison, even in the worst-case scenario, waste from solar panels is expected to reach 160 million metric tons globally by 2050.
Most solar zoning codes require that the companies post bonds for decommissioning them at the end of their lifespans so that counties don’t have to deal with disposal.