S. A. M. A. S. S. Perera's research primarily focuses on the fields of environmental science and sustainable development. His work often explores the impact of human activities on natural ecosystems and seeks to develop strategies for mitigating environmental degradation. Additionally, Perera investigates the role of renewable energy sources in promoting sustainability. His studies aim to identify effective methods for integrating these energy solutions into existing systems, thereby contributing to a more sustainable future for communities and ecosystems alike.