This work explores the transformative potential of renewable energy in driving sustainable economic growth and improving livelihoods, particularly in developing regions. By analyzing various renewable energy sources such as solar, wind, hydro, and biomass, this work highlights the significant role of clean energy in industrialization, modernization, and rural development. The study presents case studies of countries that have successfully harnessed renewable energy to boost economic activities, create jobs, and promote environmental sustainability. Moreover, it emphasizes the importance of tailored strategies for enhancing energy access in underserved areas and the critical role of policy, innovation, and financing in achieving widespread adoption of sustainable energy solutions. This comprehensive analysis underscores the need for an integrated, multidisciplinary approach to align energy access with economic development goals, showcasing how renewable energy can act as a catalyst for long-term growth and improved livelihoods. The work concludes with recommendations for overcoming the barriers to renewable energy adoption and ensuring equitable access to energy resources.