hydro power plant
16:39
Construction Of Hydroelectric Wheels From Drums
26:33
සුළඟින් විදුලිය - Making A Wind Turbine - Part 1 - Sinhala
22:23
Farmer Built 2.5 kW Hydro Electric Pelton Turbine
14:47
The Genius of Small Hydro Turbines
18:05
Denipalle Oya Hydro Power Station Sri Lanka - දෙනිපල්ල ඔය ජල විදුලි බලාගරය
13:58
Mini Hydroelectricity With 4 Extremely Powerful Water Outlets
13:23
[027] - විදුලිය නිපදවන අලුත් ක්රම - New ways of generating electricity
55:23