this post was submitted on 27 Jun 2023
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Solar panels degrade and technology advances. Industry standard is 1% less ouput every year, but many are better then that. Combined with much better panels and having mounting systems and so forth in place already, it was often economically smart to replace old panels with new ones prodcuing much more power. However after 100years and 1% degredation, they still produce 36% of the old power. We have panels with 0.3% degredation annually. So after 100 years that 75% of the original power generation.
In the EU manufacturers have to gurantee a 95% recycling rate by weight for solar panels.