Of the renewable energy sources that generate electricity, hydropower is the most often used.
The energy from the movement of fresh water. When it rains in the hills and mountains , the water concentrates on rivers, streams and currents moving into the sea. The energy is produced through the use of hydraulic potential existing in rivers, using natural gaps, such as falls of water, or artificial, prod
uced by the sheer original of the river.
Prior to the widespread availability of commercial electric power, hydropower was used for irrigation, and operation of various machines, such as watermills, textile machines, sawmills, dock cranes, and domestic lifts.
The production of this type of energy is mainly conducted through hydroelectric of greater or smaller (the largest are often called hydroelectric dams and smaller ones are generally called small scale hydro power), producing electricity that is then distributed through the electricity grid. It is one of the oldest sources of energy and was used thousands of years ago to turn a paddle wheel for purposes such as grinding grain.
The Alqueva Dam is the largest Portuguese dam, located in the Guadiana River.The installed capacity of electric power is 240 MW. The lake reaches, the maximum quota, and is the largest artificial lake in Europe
This type of energy gives low noise and vibration and can have very low environmental impact. It’s considered the most efficient processes and the less polluting, at least in the case of small hydropower plants, where the inconvenience caused to the environment is almost summarize the construction phase.
The energy from the movement of fresh water. When it rains in the hills and mountains , the water concentrates on rivers, streams and currents moving into the sea. The energy is produced through the use of hydraulic potential existing in rivers, using natural gaps, such as falls of water, or artificial, prod
uced by the sheer original of the river.Prior to the widespread availability of commercial electric power, hydropower was used for irrigation, and operation of various machines, such as watermills, textile machines, sawmills, dock cranes, and domestic lifts.
The production of this type of energy is mainly conducted through hydroelectric of greater or smaller (the largest are often called hydroelectric dams and smaller ones are generally called small scale hydro power), producing electricity that is then distributed through the electricity grid. It is one of the oldest sources of energy and was used thousands of years ago to turn a paddle wheel for purposes such as grinding grain.
The Alqueva Dam is the largest Portuguese dam, located in the Guadiana River.The installed capacity of electric power is 240 MW. The lake reaches, the maximum quota, and is the largest artificial lake in Europe
This type of energy gives low noise and vibration and can have very low environmental impact. It’s considered the most efficient processes and the less polluting, at least in the case of small hydropower plants, where the inconvenience caused to the environment is almost summarize the construction phase.
http://www.niwa.cri.nz/__data/assets/image/0015/50532/hydropower2_large.jpg
http://www.eia.doe.gov/kids/energyfacts/sources/renewable/water.html
http://agueda_criativa_agueda.blogs.sapo.pt/2510.html
http://en.wikipedia.org/wiki/Hydropower
http://www.eia.doe.gov/kids/energyfacts/sources/renewable/water.html
http://agueda_criativa_agueda.blogs.sapo.pt/2510.html
http://en.wikipedia.org/wiki/Hydropower
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