Imagine you are a financial consultant advising Amazon.com, Inc. on a proposed investment in sustainable infrastructure development. The project involves constructing solar panels at Amazon's fulfillment centers worldwide, with an initial investment of $100 million. The project is expected to generate annual savings of $20 million in electricity costs over the next 10 years. Additionally, the project aligns with Amazon's commitment to sustainability and could enhance its corporate image and brand reputation. Prepare a detailed investment proposal for Amazon's executive leadership team, outlining the project's financial feasibility, environmental benefits, and strategic value. Include financial projections, risk assessments, and recommendations for implementation and monitoring.