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When Renewables Are Not Renewable

Sure the wind and sun are renewable, but the collectors we build are not

Wind Turbines

Solar

Solar panels must be replaced every 30 to 40 years because solar panels degrade efficiency by about 1% per year. If we covered the entire state of Arizona with solar panels, they would produce enough electricity to power the world at our current level of demand — but they would have to be replaced every 30–40 years.

Wind

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