I need help creating an outline for a research paper on the economic impact of renewable energy. The outline should have 4 sections, and each section should be marked with "SECTION" X, where X is the section number. The outline should also include a postscript starting with "P.S." that mentions the importance of renewable energy. Here are the topics for each section: 
SECTION 1: Introduction to Renewable Energy
SECTION 2: Economic Benefits of Renewable Energy
SECTION 3: Challenges and Costs of Implementing Renewable Energy
SECTION 4: Future Prospects and Government Policies
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