The USDA Rural Energy for America Program (REAP) offers grants and loan guarantees to help rural small businesses and agricultural producers invest in renewable energy and energy-efficient projects, covering up to 25% of total costs. Applicants must follow a detailed application process that includes preparing financial documentation, feasibility studies, and environmental reviews, while demonstrating the project's energy impact. Successful applications require thorough preparation, expert collaboration, and clear articulation of the project's benefits to obtain funding.