One alternative to power generation utilizing coal or petroleum fuels is the hydroelectric power plant. This facility utilizes the energy of rapidly moving water to turn the turbines of its generators and produce electricity. In locations where a source of moving water is available, hydro plants offer a clean, safe alternative to coal, petroleum, and nuclear power generation. Hydro plants have their own set of environmental dangers, however. The disruption of a river's normal flow and the massive flooding of the land behind the facility's dam can destroy the habitat of the wildlife inhabiting the river basin.