hydropower professor stephen lawrence leeds school of business university colorado boulder co course outline renewable hydro power wind energy oceanic solar geothermal biomass sustainable hydrogen & fuel cells nuclear fossil innovation exotic technologies integration distributed generation hydrologic cycle to electric in context sources us world trends production major producers s largest dams three gorges dam china location map itaip brazil paraguay site guri venezuela grand coulee statistics uses by state percent history early irrigation waterwheel roman water mill norse fourneyron turbine design terminology jargon head must fall from a higher elevation lower one release its stored the difference between these elevations levels forebay and tailbay is called categories high 800 or more feet medium 100 low less than
