RENEWABLE AND SUSTAINABLE ENERGY SYSTEMS FOR A LOW-CARBON FUTURE: SOURCES, SUSTAINABILITY DIMENSIONS, AND FUTURE CHALLENGES

Abstract

Renewable and sustainable energy systems are essential for addressing global challenges such as climate change, energy insecurity, and environmental degradation while enabling a transition to a low-carbon future. Renewable energy refers to energy derived from naturally replenished resources, including solar, wind, hydropower, biomass, and geothermal energy. Sustainable energy extends this concept by emphasizing the efficient, equitable, and environmentally responsible production and use of energy to meet present needs without compromising the ability of future generations to meet their own. This study provides a comprehensive overview of major renewable energy sources and examines their environmental, economic, and social benefits within the broader framework of sustainability dimensions. It further analyzes key challenges associated with large-scale deployment, including resource intermittency, storage limitations, lifecycle impacts, policy constraints, and market barriers. In addition, a case example from Pakistan the Noriabad Jamshoro Wind Power Project is highlighted to demonstrate the practical application and benefits of renewable energy in a developing country context. The study concludes that advancements in technology, supportive policies, and global cooperation are accelerating the adoption of clean energy systems. Ultimately, transitioning to renewable and sustainable energy is critical for reducing greenhouse gas emissions, strengthening energy security, promoting inclusive economic growth, and achieving long-term sustainable development goals.