This homemade water turbine is beautiful, and functional and would be great for an off grid homestead. It shows what can be done with a little creative thinking. This video is very well done and is definitely worth your time. http://www.thegoodsurvivalist.com/beautiful-homemade-off-grid-water-turbine-made-from-a-bike-wheel-and-pvc-cups/
Hydroelectric Power Plant The most common type of hydroelectric power plant is an impoundment facility. An impoundment facility typically a large hydropower system uses a dam to store river water in a reservoir. Water released from the reservoir flows through a turbine spinning it which in turn activates a generator to produce electricity. The water may be released either to meet changing electricity needs or to maintain a constant reservoir level. Electrical Info Mechanics
Norfolk-St Benet's Mill was a level drainage mill and stood on Horning marshes on the opposite side of the River Thurne to the white Thurne drainage mill. The mill was originallly built around 1775 with common sails.