Hydropower
Hydropower
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Undershot water wheels on the Orontes River in Hama, Syria
Saint Anthony Falls
Energy Portal
Hydropower is the capture of the energy of moving water for some useful purpose. Prior to the widespread availability of commercial electric power, hydropower was used for irrigation, milling of grain, textile manufacture, and the operation of sawmills. The energy of moving water has been exploited for centuries; in Imperial Rome, water powered mills produced flour from grain, and in China and the rest of the Far East, hydraulically operated "pot wheel" pumps raised water into irrigation canals. In the 1830s, at the peak of the canal-building era, hydropower was used to transport barge traffic up and down steep hills using inclined plane railroads. Direct mechanical power transmission required that industries using hydropower had to locate near the waterfall. For example, during the last half of the 19th century, many grist mills were built at Saint Anthony Falls, utilizing the 50 foot (15 metre) drop in the Mississippi River. The mills contributed to the growth of Minneapolis. Today the largest use of hydropower is for electric power generation, which allows low cost energy to be used at long distances from the watercourse.
Contents
[hide]
1 Types of water power
o 1.1 Hydroelectric power
o 1.2 Tidal power
1.2.1 Tidal stream power
o 1.3 Wave power
2 Physics
3 Small scale hydro power
4 See also
5 References
6 External links
[edit] Types of water power
There are many forms of water power:
Waterwheels , used for hundreds of years to power mills and machinery
Hydroelectric energy, a term usually reserved for hydroelectric...
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