Waterwheel Designs from Ancient Times – Waterpower in Other Parts of the World in Antiquity – Waterpower’s Contribution to the Industrial Revolution – Waterwheel to Water Turbine – Hydroelectricity – Size Classification – Drivers of and Deterrents to Hydropower Development – Climate Change – Hydropower for Energy Access – Notes – References – Chapter Basics of Hydropower – Hydropower Types and Their Components – Power Output from Hydroelectric Power Plants – Types and Components of Hydropower – Waterways – Dam or Diversion Weir – Intake and Headworks – Headrace – Gravel Trap and Settling Basin – Spillway – Crossings – Forebay – Penstock Pipe – Anchor Block – Support Pier – Powerhouse – Inside the Powerhouse – Storage Type Hydroelectric Plants – Chapter Site Selection and Feasibility Study for Hydropower Projects – Overview – Measurement of Head – Level Machines, Theodolites, or Total Stations – Global Positioning System (GPS) – Abney Level – Measurement Procedure – Measurement of River Flows – Flow Measurements Using a Conductivity Meter – Measurement Procedure – Discharge Measurement – Determination of K Value .