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A pico hydro system made by the Sustainable Vision project from Baylor University [1]. Pico hydro is a term used for hydroelectric power generation of under 5 kW. These generators have proven to be useful in small, remote communities that require only a small amount of electricity – for example, to power one or two fluorescent light bulbs and a TV or radio in 50 or so homes. [2]
Hydroelectric projects can be disruptive to surrounding aquatic ecosystems both upstream and downstream of the plant site. Generation of hydroelectric power changes the downstream river environment. Water exiting a turbine usually contains very little suspended sediment, which can lead to scouring of river beds and loss of riverbanks. [48]
Small hydro is the development of hydroelectric power on a scale suitable for local community and industry, or to contribute to distributed generation in a regional electricity grid. [1] Exact definitions vary, but a "small hydro" project is less than 50 megawatts (MW), and can be further subdivide by scale into "mini" (<1MW), " micro " (<100 ...
Julius Nyerere Hydropower Station (JNHPP; JNHS; RHHP; Rufiji Hydroelectric Power Project; Stiegler's Gorge Dam) is a hydroelectric dam under construction and partially operational across the Rufiji River in eastern Tanzania. The power station is expected to have an installed capacity of 2,115 megawatts (2,836,000 hp) and to produce 5,920 GWh of ...
A screw turbine at a small hydro power plant in Goryn, Poland. The Archimedean screw is an ancient invention, attributed to Archimedes of Syracuse (287–212 BC.), and commonly used to raise water from a watercourse for irrigation purposes.
Most current hydroelectric projects use a large hydraulic head to power turbines to generate electricity. The hydraulic head either occurs naturally, such as a waterfall, or is created by constructing a dam in a river valley, creating a reservoir. Using a controlled release of water from the reservoir drives the turbines.
Construction began in 2008, [4] the dam's reservoir began to fill in July 2013 and the first generator was commissioned in December 2014. [5] [6] The fourth and final turbine became operational on 8 June 2015. [7] Concerns have been raised about the displacement of the Dayak people and the removal of rainforest due to the construction of the dam.
Zengamina is a small hydroelectric power generation plant near Kalene Hill, Ikelenge District in northwestern Zambia. It was built between 2004 and 2008 at a cost of about $3 million, or $4,285 per kilowatt of power. [1]