: To reduce greenhouse gas emissions and incentivize the development of clean energy markets.

: Utilities often earn or purchase Renewable Energy Certificates (RECs) to prove compliance.

A is a regulatory mandate requiring electric utilities to source a minimum percentage of their electricity from renewable resources like wind, solar, and geothermal.

In aerospace, refers to "nuclear batteries" that convert heat from the natural decay of plutonium-238 into electricity. Renewables Portfolio Standard - RPS

: While common in the U.S. (e.g., California’s goal of 50% by 2030), similar frameworks exist internationally, such as the Renewables Obligation in the UK. 2. Radioisotope Power Systems (Space Exploration)

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