Generation
Hydroelectric power is the generation of electric power from the movement of water. A hydroelectric facility requires a dependable flow of water and a reasonable height of fall of water, called the head. In a typical installation, water is fed from a reservoir through a channel or pipe into a turbine. The pressure of the flowing water on the turbine blades causes the shaft to rotate. The rotating shaft is connected to an electrical generator which converts the motion of the shaft into electrical energy.
Small hydro is often developed using existing dams or through development of new dams whose primary purpose is river and lake water-level control, or irrigation. Occasionally old, abandoned hydro sites may be purchased and re-developed, sometimes salvaging substantial parts of the installation such as penstocks and turbines, or sometimes just re-using the water rights associated with an abandoned site. Either of these cost saving advantages can make the ROI for a small hydro site well worth the use of existing site infrastructure & water rights.
Read more about this topic: Small Hydro
Famous quotes containing the word generation:
“Every generation rediscovers and re-evaluates the meaning of infancy and childhood.”
—Arnold Gesell (20th century)
“What makes this Generation of Vermin so very Prolifick, is the indefatigable Diligence with which they apply themselves to their Business. A Man does not undergo more watchings and fatigues in a Campaign, than in the Course of a vicious Amour. As it is said of some Men, that they make their Business their Pleasure, these Sons of Darkness may be said to make their Pleasure their Business. They might conquer their corrupt Inclinations with half the Pains they are at in gratifying them.”
—Joseph Addison (1672–1719)
“Doubtless, we are as slow to conceive of Paradise as of Heaven, of a perfect natural as of a perfect spiritual world. We see how past ages have loitered and erred. “Is perhaps our generation free from irrationality and error? Have we perhaps reached now the summit of human wisdom, and need no more to look out for mental or physical improvement?” Undoubtedly, we are never so visionary as to be prepared for what the next hour may bring forth.”
—Henry David Thoreau (1817–1862)