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 produced from hydropower. In 2020 hydropower generated one sixth of the world's electricity, almost 4500 TWh, which was more than all other renewables combined and also more than nuclear power.
The James Bay Project refers to the construction of a series of hydroelectric power stations on the La Grande River in northwestern Quebec, Canada by state-owned utility Hydro-Québec, and the diversion of neighbouring rivers into the La Grande watershed. It is located between James Bay to the west and Labrador to the east, and its waters flow from the Laurentian Plateau of the Canadian Shield. The project covers an area the size of New York State and is one of the largest hydroelectric systems in the world. It has cost upwards of US$20 billion to build and has an installed generating capacity of 16,527 megawatts. If fully expanded to include all of the original planned dams, as well as the additional James Bay II projects, the system would generate a total of 27,000 MW, making it the largest hydroelectric system in the world. It has been built since 1974 by James Bay Energy (SDBJ) for Hydro-Québec.
The Manitoba Hydro-Electric Board, operating as Manitoba Hydro, is the electric power and natural gas utility in the province of Manitoba, Canada. Founded in 1961, it is a provincial Crown Corporation, governed by the Manitoba Hydro-Electric Board and the Manitoba Hydro Act. Today the company operates 15 interconnected generating stations. It has more than 527,000 electric power customers and more than 263,000 natural gas customers. Since most of the electrical energy is provided by hydroelectric power, the utility has low electricity rates. Stations in Northern Manitoba are connected by a HVDC system, the Nelson River Bipole, to customers in the south. The internal staff are members of the Canadian Union of Public Employees Local 998 while the outside workers are members of the International Brotherhood of Electrical Workers Local 2034.
Waddamana Hydro-Electric power station was the first hydro-electric power plant ever operated by the Tasmanian Hydro-Electric Department, opened in 1916.
Newfoundland and Labrador Hydro, commonly known as Hydro, is a provincial Crown corporation that generates and delivers electricity for Newfoundland and Labrador, as well as portions of Quebec and the north-eastern areas of the United States. Since 2007, Hydro has been a subsidiary of the provincial Crown-owned energy holding company Nalcor Energy.
The Bay D'Espoir Hydroelectric Development, built by the Newfoundland and Labrador Power Commission is located on the south coast of Newfoundland near the rural community of Bay d'Espoir. It was the second major hydroelectric project undertaken on Newfoundland.
The Upper Salmon Hydro Development, a hydroelectric plant in Newfoundland and Labrador. It utilises a portion of the residual head between Meelpaeg Lake Reservoir and Round Pond within the watershed of the Bay d'Espoir Hydroelectric Development.
The Paradise River Hydroelectric Generating Station is a hydroelectric generating plant located near the mouth of the Paradise River in Newfoundland and Labrador. The plant is owned by Newfoundland and Labrador Hydro, and was first synchronized in 1989. It operates with an average rated flow of 25 m3/s to generate 8 MW of electrical power, with an average annual production of 37 GWh. The unit is equipped with a Francis runner. The project, which operates under a run-of-river philosophy, has a 43m high concrete arch dam with an overflow spillway, the largest structure of this design in Eastern North America.
The Granite Canal Hydroelectric Generating Station is a component of the Newfoundland and Labrador Hydro Corporation's Bay d’Espoir Hydro Electric Development system. The generating station has a rated capacity of 40 MW with an annual average energy production of 224 gigawatt hours (GWh). The generating unit at Granite Canal utilizes approximately 37 metres of head with a rated plant flow of 122.4 cubic metres per second. The unit is equipped with a Kaplan turbine and was first synchronized on May 26, 2003.
Newfoundland Power Inc. is an electric utility owned by Fortis Inc. which is the primary retailer of electric power in the Canadian province of Newfoundland and Labrador. The company was formed by the Royal Securities Corporation of Montreal in 1924 as the Newfoundland Light & Power Company.
The Petty Harbour Hydro Electric Generating Station is a hydroelectric generating station in Petty Harbour–Maddox Cove, Newfoundland and Labrador. It was constructed in 1898 and it was the first hydroelectric generating station in Newfoundland. It was built by the St. John's Street Railway Company, a company established by Robert Reid. Operation commenced on 19 April 1900.
The Robert-Bourassa generating station, formerly known as La Grande-2 (LG-2), is a hydroelectric power station on the La Grande River that is part of Hydro-Québec's James Bay Project in Canada. The station can generate 5,616 MW and its 16 units were gradually commissioned between 1979 and 1981. Annual generation is in the vicinity of 26500 GWh.
St. Alban's is a town of approximately 1,200 located in the Bay d'Espoir estuary on the south coast of Newfoundland, Canada. St. Alban's is the largest community in Bay d'Espoir. The town is 180 km south of Grand Falls-Windsor.
The Nelson River Hydroelectric Project refers to the construction of a series of dams and hydroelectric power plants on the Nelson River in Northern Manitoba, Canada. The project began to take shape in the late 1950s, with the planning and construction of the Kelsey dam and hydroelectric power station, and later was expanded to include the diversion of the upper Churchill River into the Nelson River and the transformation of Lake Winnipeg, the world's 11th largest freshwater lake, into a hydroelectric reservoir. The project is owned and operated by Manitoba Hydro, the electrical utility in the province.
The McCormick generating station is a dam and power station built on the Manicouagan river by the Quebec & Ontario Paper Company and the Canadian British Aluminium Company 3 km (1.9 mi) west of Baie-Comeau, Quebec, Canada. It is named after colonel Robert R. McCormick (1880–1955), who owned and published the Chicago Tribune.
The Churchill Falls Generating Station is a hydroelectric underground power station in Labrador. At 5,428 MW, it is the tenth largest in the world, and the second-largest in Canada, after the Robert-Bourassa generating station in northwestern Quebec.
The Menihek Hydroelectric Generating Station is a conventional hydroelectric generating station at Menihek Lake in Labrador. The dam and powerhouse are located in the Canadian province of Newfoundland and Labrador, 40 km (25 mi) south of the isolated town of Schefferville, Quebec and two First Nations communities: Matimekosh-Lac-John and Kawawachikamach. The generating station, two 69 kV power lines and the distribution networks in each community form an independent electricity network, off the main North American grid.
