Micro Hydro Power in Pakistan: A Comprehensive Review of Development, Applications, Challenges, and Future Prospects

A mid Pakistan’s evolving energy landscape,characterized by 62.1% reliance on fossil fuels and micro hydropower (MHP) systems,providesa cost-effective and sustainable energy alternative. This review synthesizes technical, economic, and policy dimensions to assess the present and future role of MHP in Pakistan. It offers a detailed evaluation of turbine types (Pelton, Cross-flow, Kaplan, Turgo), their performance, and suitability under varying head and flow conditions. The study presents a comprehensive assessment of SHP/MHP potential, emphasizing turbine selection, feasibility, and implementation barriers. A key contribution is the development of a practical turbine selection framework comprising a decision-making flow diagram and efficiency table on empirical and field-validated data. Drawing on case studies from Khyber Pakhtunkhwa, Gilgit-Baltistan, and Punjab, the study addresses region-specific generation capacities, sedimentation, seasonal variability, and socio-economic impacts. It also reviews the institutional roles of WAPDA, AEDB, PEPCO, and IPPs, alongside policy frameworks under CPEC and the Alternative Energy Policy. By integrating civil, electrical, and social parameters, the study offers actionable insights for engineers, planners, and policymakers. Despite improvements in turbine efficiency and tariffs, Pakistan’s MHP capacity remains underexploited. Modular designs, smart grids, and rural incentives could bridge energy access gaps and support 2030 renewable energy goals.