The article "Pathway to Sustainability: An Overview of Renewable Energy Integration in Building Systems" by Vennapusa Jagadeeswara Reddy, N. P. Hariram, Mohd Fairusham Ghazali, and Sudhakar Kumarasamy, focuses on the critical need to decarbonize the building sector to mitigate climate change and reduce carbon emissions. The authors explore key design principles and strategies for enhancing energy savings and integrating renewable energy sources (RES) such as solar, wind, geothermal, and biomass. They also examine recent developments in hybrid renewable energy systems, energy storage solutions, and AI-based technological innovations. The introduction highlights the finite nature of traditional energy sources and the urgent need to transition to sustainable alternatives. The building sector, which accounts for a significant portion of global energy consumption and greenhouse gas emissions, is a primary focus. The article outlines the challenges and opportunities in integrating renewable energy technologies into various building systems, emphasizing the importance of sustainable practices and the Paris Agreement's targets for net-zero emissions. The research aims to fill gaps in existing literature by exploring evolving technologies and materials that enhance energy collection, storage, and distribution. It provides valuable insights and practical recommendations for achieving regenerative, carbon-neutral buildings that align with global sustainability goals. The article is structured into several sections, including an overview of decarbonizing strategies, energy efficiency measures, energy monitoring and management, and onsite renewable energy generation. It discusses the integration of solar, wind, biogas, geothermal, and hybrid systems into building systems, highlighting the benefits and challenges of each technology. The authors emphasize the importance of sustainable building practices, advanced architectural and engineering practices, and the role of automation and intelligent technology in optimizing energy usage. The article concludes with a comprehensive analysis of various case studies and future prospects, providing actionable recommendations for policymakers, builders, and stakeholders to contribute to a greener and more energy-efficient future.The article "Pathway to Sustainability: An Overview of Renewable Energy Integration in Building Systems" by Vennapusa Jagadeeswara Reddy, N. P. Hariram, Mohd Fairusham Ghazali, and Sudhakar Kumarasamy, focuses on the critical need to decarbonize the building sector to mitigate climate change and reduce carbon emissions. The authors explore key design principles and strategies for enhancing energy savings and integrating renewable energy sources (RES) such as solar, wind, geothermal, and biomass. They also examine recent developments in hybrid renewable energy systems, energy storage solutions, and AI-based technological innovations. The introduction highlights the finite nature of traditional energy sources and the urgent need to transition to sustainable alternatives. The building sector, which accounts for a significant portion of global energy consumption and greenhouse gas emissions, is a primary focus. The article outlines the challenges and opportunities in integrating renewable energy technologies into various building systems, emphasizing the importance of sustainable practices and the Paris Agreement's targets for net-zero emissions. The research aims to fill gaps in existing literature by exploring evolving technologies and materials that enhance energy collection, storage, and distribution. It provides valuable insights and practical recommendations for achieving regenerative, carbon-neutral buildings that align with global sustainability goals. The article is structured into several sections, including an overview of decarbonizing strategies, energy efficiency measures, energy monitoring and management, and onsite renewable energy generation. It discusses the integration of solar, wind, biogas, geothermal, and hybrid systems into building systems, highlighting the benefits and challenges of each technology. The authors emphasize the importance of sustainable building practices, advanced architectural and engineering practices, and the role of automation and intelligent technology in optimizing energy usage. The article concludes with a comprehensive analysis of various case studies and future prospects, providing actionable recommendations for policymakers, builders, and stakeholders to contribute to a greener and more energy-efficient future.