Hydroelectric-cons

= Hydroelectric-Disadvantages =

By: Courtney Casey
====[|Hydroelectricity] is making electricity from the energy of falling water or any other water sources. One disadvantage of hydroelectricity is dependent it is on the source of the water. First, there needs to be a water source that is sizable and runs quickly. If you have a smaller turbine you want to make sure the water is moving quickly. Also Run-of-the-River plants impact mobility of fish and other river life. It limits them from moving into their natural habitats. Run-on-the-River means no large dammed areas and large bodies of water stored behind dams. The energy is derived from naturally flowing water which has a pressure head simply by virtue of the terrain over which the river is flowing. Steeper the terrain and larger the flow of water the larger the kinetic potential energy available to be passed through a series of turbines.[| Run-on-the-River] ====

[[image:http://hydropower.inel.gov/hydrofacts/images/howworks.jpg width="477" height="293" align="right" caption="This is a photgraph of a Run-on-the-River plant."]]
=== This is a photograph of the Lowell Mill; The Lowell Mill was ran by girls and was a factory for certain kind of manufacture, as paper, steel, or textiles. [|Mill] ===