The following pdf was written by European Small Hydropower Association (ESHA) and summarizes the main aspects regarding the development of small hydropower plants. It contains the following chapters:
 Chapter 1: Introduction
  Chapter 2: Fundamental of Hydraulic Engineering
  Chapter 3: Evaluating Stream Flow
  Chapter 4: Site Evaluation Methodologies
  Chapter 5: Hydraulic Structures
  Chapter 6: Electromechanical Equipment
  Chapter 7: Environmental impact and its mitigation
  Chapter 8: Economic analysis
  Chapter 9: Administrative procedures
 
 The file can be found here at ESHA’s site:
http://www.esha.be/index.php?id=39
Read more at source
http://www.myengineeringworld.net/2011/05/how-to-develop-small-hydropower-site.html
 

