Small hydro as green power

This paper addresses the issue of small hydro as green power, discusses the fundamental differences between small and large-scale hydro, and investigates small hydro implementation from the standpoint of its development philosophy, operational principles, construction features, the small hydro resource, and equipment maintenance and scheduling. General advantages and disadvantages of small hydro plants are reviewed, and the case for environmentally sensitive small hydro is made. Case studies of four small hydro installations are presented with an analysis of site-specific engineering details, constraints and environmental enhancements achieved.