Related Research Articles
Hydropower, also known as water power or water energy, is the use of falling or fast-running water to produce electricity or to power machines. This is achieved by converting the gravitational potential or kinetic energy of a water source to produce power. Hydropower is a method of sustainable energy production. Hydropower is now used principally for hydroelectric power generation, and is also applied as one half of an energy storage system known as pumped-storage hydroelectricity.
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. 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 kW), "pico" (<10 kW). In contrast many hydroelectric projects are of enormous size, such as the generating plant at the Three Gorges Dam at 22,500 megawatts or the vast multiple projects of the Tennessee Valley Authority.
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower. Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. However, when constructed in lowland rainforest areas, where part of the forest is inundated, substantial amounts of greenhouse gases may be emitted.
Shehu Usman Aliyu Shagari was a Nigerian politician who was the first democratically elected president of Nigeria, after the transfer of power by military head of state General Olusegun Obasanjo in 1979, which gave rise to the Second Nigerian Republic.
The Merowe Dam, also known as Merowe High Dam, Merowe Multi-Purpose Hydro Project or Hamdab Dam, is a large dam near Merowe Town in northern Sudan, about 350 kilometres (220 mi) north of the capital Khartoum. Its dimensions make it the largest contemporary hydropower project in Africa. It is situated on the river Nile, close to and inundating the 4th Cataract where the river divides into multiple smaller branches with large islands in between. Merowe is a city about 40 kilometres (25 mi) downstream from the construction site at Hamdab. The main purpose for building the dam was the generation of electricity.
Tarbela Dam is an earth-filled dam along the Indus River in Pakistan's Khyber Pakhtunkhwa province. It is mainly located in Haripur Tehsil. It is about 20 km (10 mi) from the city of Swabi KPK, 105 km (65 mi) northwest of Islamabad, and 125 km (80 mi) east of Peshawar. It is the largest earth-filled dam in the world. The dam is 143 metres (470 ft) high above the riverbed and its reservoir, Tarbela Lake, has a surface area of approximately 250 square kilometres (97 sq mi).
The Nam Ngum Dam is a hydroelectric dam on the Nam Ngum River, a major tributary of the Mekong River in Laos. It was the first hydropower dam built in the Lao PDR.
Run-of-river hydroelectricity (ROR) or run-of-the-river hydroelectricity is a type of hydroelectric generation plant whereby little or no water storage is provided. Run-of-the-river power plants may have no water storage at all or a limited amount of storage, in which case the storage reservoir is referred to as pondage. A plant without pondage is subject to seasonal river flows, so the plant will operate as an intermittent energy source. Conventional hydro uses reservoirs, which regulate water for flood control, dispatchable electrical power, and the provision of fresh water for agriculture.
The Baihetan Dam is a large hydroelectric dam on the Jinsha River, an upper stretch of the Yangtze River in Sichuan and Yunnan provinces, in southwest China. The dam is a 289-meter-tall double-curvature arch dam with a crest elevation of 827 m, and a width of 72 m at the base and 13 m at the crest. It is considered to be the last large hydropower project in China after a series of projects starting with the Three Gorges Dam. It is also the second largest hydropower plant in the world. The hydropower station is equipped with 16 hydro-generating units each having a capacity of 1 billion Watts, the world's largest turbines. All hydro-generating units of the Baihetan hydropower station became fully operational on 20 December 2022.
The Mount Coffee Hydropower Project is a hydroelectric project in the West African nation of Liberia on the Saint Paul River. Built in 1966 with additional phases completed later, the project has a maximum generating capacity of 88 MW. The Walter F. Walker Hydro Dam and generating facilities were extensively damaged during the First Liberian Civil War in 1990 and functioning was not restored until 2018.
The Kafin Zaki Dam is a controversial project to build a reservoir on the Jama'are River in Bauchi State in the Northeast of Nigeria.
The Challawa Gorge Dam is in Karaye Local Government Area of Kano State in the Northwest of Nigeria, about 90 km southwest of Kano city. It is a major reservoir on the Challawa River, a tributary of the Kano River, which is the main tributary of the Hadejia River.
The Zobe Dam is in Dutsin-Ma local government area of Katsina State in the north of Nigeria. It is an earth-fill structure with a height of 19 m and a total length of 2,750 m. The dam has a storage capacity of 179 Mca and irrigation potential of 8,000 hectares. Although the dam was completed in 1983, as of 2010, it was still not being used for water supply to Katsina city, for local irrigation or for power generation.
The Oyan River Dam is in Abeokuta North local government area of Ogun State in the West of Nigeria, about 20 km north west of the state capital Abeokuta. The dam crosses the Oyan River, a tributary of the Ogun River. It is used primarily to supply raw water to Lagos and Abeokuta, but has potential for use in irrigation and power generation.
The Grand Ethiopian Renaissance Dam, formerly known as the Millennium Dam and sometimes referred to as the Hidase Dam, is a gravity dam on the Blue Nile River in Ethiopia. The dam is in the Benishangul-Gumuz Region of Ethiopia, about 14 km (9 mi) east of the border with Sudan.
Energy in Bhutan has been a primary focus of development in the kingdom under its Five-Year Plans. In cooperation with India, Bhutan has undertaken several hydroelectric projects whose output is traded between the countries. Though Bhutan's many hydroelectric plants provide energy far in excess of its needs in the summer, dry winters and increased fuel demand makes the kingdom a marginal net importer of energy from India.
The Duber Khwar Hydropower Plant is located near the town of Pattan in Kohistan, Khyber Pakhtunkhwa, Pakistan on the Duber Khwar River, a right bank tributary of the Indus River. It is approximately 340 km NW from Islamabad, the federal capital of Pakistan.
Julius Nyerere Hydropower Station is a hydroelectric dam under construction and partially operational across the Rufiji River in eastern Tanzania. Although controversial, the government approved the plans in 2018. 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 power annually. As of July 2024, three of the nine turbines have been turned on, generating 662 megawatts. The project, power station and dam are owned by and will be managed by the government owned Tanzania Electric Supply Company (TANESCO). Construction began in 2019 and is expected to be completed by the end of 2024.
References
- ↑ L. Berga, ed. (2006). Dams and Reservoirs, Societies and Environment in the 21st Century: Proceedings of the International Symposium on Dams in the Societies of the 21st Century, 22nd International Congress on Large Dams (ICOLD), Barcelona, Spain, 18 June 2006. Taylor & Francis. p. 314. ISBN 0-415-40423-1.
- ↑ "Ikere Gorge Dam". Iseyinland. Retrieved 2010-05-23.[ permanent dead link ]
- ↑ Enplan Group (September 2004). "Review of The Public Sector Irrigation in Nigeria" (PDF). Federal Ministry of Water Resources / UN Food & Agricultural Organization. Archived from the original (PDF) on 2017-05-18. Retrieved 2010-05-21.
 | This article about a Nigerian building or structure related topic is a stub. You can help Wikipedia by expanding it. |