Renewables as extractive industries: Renewable energy sources like wind and solar are extractive industries that depend on the “grade” of the natural resource to achieve sustainability, a three-dimensional concept that includes economics, social acceptance, and environmental considerations.
The problem of low-grade resources: Deploying renewables in areas where the resource grade is too low imposes macro-level costs on the electrical system and reduces its economic and environmental sustainability through the inefficient deployment of limited resources.
The problem of high-grade resources: Deploying too many renewables in areas where the resource grade is high causes value deflation, lowers the revenue of the projects, and impairs micro-level sustainability.
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