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1,746 bytes removed, 15:21, 21 March 2013
moved "Small hydropower plants" section to hydroelectricity
Note that the top 4 energy conversion systems are '''ocean energy conversion systems'''' (use in open sea), the osmotic power plant is used where sweetwater and saltwater converges (ie river mouths ending into the sea) and the lower 3 energy conversion systems are used in rivers, streams or on basins/ponds.
==Small hydropower plants==
===parameters for the determination of a project===
Today, to transform hydropower to electrical power, it is possible to construct very large but also small-sized plants. This article lists the parameters to determine small hydroelectric facilities. They have a place in the process of the development of small communities and in the process of [[sustainable development]] because of the economy in terms of CO²-emissions. See
===Vocabulary and definitions===
Classes of powerplants: The technical literature considers small power plants, those plants that generate a power output less than 2000kW or 2 MW. The small power plants are divided into mini power (maximum power output 500kW), micro-power (maximum power output of 100 kW) and pico-power (0.2 kw to 5kW). These powers outputs are to be considered as orders of magnitude because, depending on the country or region, different figures have been cited. The pico-plants have been installed mostly in Asia, Vietnam (120,000) and the Philippines.
{| border="1" cellpadding="5" cellspacing="0" style="text-align:left"
|Country|| Micro (kW)|| Mini (kW)|| Small (MW) || Source
|United States|| <100|| 100-1000 || 1-30|| Dragu, 2002
|China|| <500|| -|| 0,5-25|| Dragu, 2002
|Italy|| -|| -|| <3|| European Commission, 2000
|Portugal,Spain, Ireland, Greece, Belgium|| -|| -|| <10|| European Commission, 2000
|France|| 5-5000|| -|| <8|| European Commission, 2000
|India|| <100|| 101-1000||1-1,5|| Dragu,2002
|ESHA-European Small Hydropower Association|| <100|| 101-500|| 0,5-10|| ESHA,1998
<ref>[ Reference]</ref>
Category: plants can also be classified as “along the waterstream” or “other”. The first, "along the waterstream" receives water from the river or stream without accumulation infrastructure (dam, pool, pond ...). The volume of water available for the turbine depends on the instantaneous waterflow of the river. 

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