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So a graph of efficiency over time would have been too boring? Even just a little one in the corner to make the trend clear.
How long do they last, and what’s the environmental impact of creating and recycling them?
In general, it is estimated that a solar panel needs around three years to produce the energy required to offset the carbon dioxide emitted in its production. The lifetime of a solar panel system is around 30-40 years,
https://solarisrenewables.com/blog/carbon-footprint-of-solar-panel-manufacturing/
@Suoko @OsrsNeedsF2P
Can be less than 15 years life. Batteries 2 to 8 years.