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Mini-Hydel Power Plant
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Mini-Hydro Power• Hydropower is energy from water sources
such as the ocean, rivers and waterfalls.
• “Mini hydro” or “Mini Hydel” means whichcan apply to sites
ranging from a tiny scheme
to electrify a single home, to a few hundredkilowatts for
selling into the National rid.
• !mall-scale hydropower is one of the most
cost-e"ective and relia#le energytechnologies to #e considered
for providingclean electricity generation
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$he key advantages of small hydro are%
• High e&ciency '() - *)+, #y far the #est of all energy
technologies
• High capacity factor 'typically )+
• High level of predicta#ility, varying with annual rainfall
patterns
• !low rate of change/ the output power varies onlygradually
from day to day 'not from minute to minute
• 0 good correlation with demand i.e. output is ma1imumin
winter
• 2t is a long-lasting and ro#ust technology/ systems canreadily
#e engineered to last for ) years or more.
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• !mall hydro is in most cases “run-of-river”/ in other words
any dam or #arrage
is 3uite small, usually 4ust a weir, and littleor no water is
stored
• $herefore run-of-river installations do nothave the same kinds
of adverse e"ect onthe local environment as large-scalehydro.
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Small Hydro Power (SHP)
Small Hydro Power (SHP) is hydro plant withpower under 10
MW as defined by United Nations
ndustrial !e"elopment #r$ani%ation (UN!#)&
' Miro hydro plants P 100 *W ' Mini hydro plants P
1000 *W
' Small hydro plants P 10000 *W
P+ Power plant
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Scale of Hydropower Projects• ,ar$e-hydro
' More than 100 MW feedin$ into a lar$e eletriity $rid•
Medium-hydro
' 1./ - 100 MW usually feedin$ a $rid (/10)•
Small-hydro
' 1 ' 1./ MW - usually feedin$ into a $rid (/10)•
Mini-hydro
' Above 100 !" b#t below 1 M! ' $ither stand alone
schemes or more often feedin% into the %rid
• Miro-hydro ' rom .*W up to 100 *W (/0) ' Usually
pro"ided power for a small ommunity or rural industry in remote
areas away from the $rid2
• Pio-hydro ' rom a few hundred watts up to .*W '
3emote areas away from the $rid2
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Hydro project schematic
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urasyar Mini Hydel Power in 5adgam, 6 7 8
