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Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. A PSH system stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power.
The British Columbia Hydro and Power Authority, operating as BC Hydro, is a Canadian electric utility in the province of British Columbia. It is the main electricity distributor, serving more than 4 million customers in most areas, with the exception of the City of New Westminster, where the city runs its own electrical department and portions of the West Kootenay, Okanagan, the Boundary Country and Similkameen regions, where FortisBC, a subsidiary of Fortis Inc. directly provides electric service to 213,000 customers and supplies municipally owned utilities in the same area. As a provincial Crown corporation, BC Hydro reports to the BC Ministry of Energy, Mines and Low Carbon Innovation, and is regulated by the British Columbia Utilities Commission (BCUC). Its mandate is to generate, purchase, distribute and sell electricity.
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.
Jog Falls is a waterfall on the Sharavati river located in Siddapur taluk of Uttara Kannada district and its view point in Kargal town of Shimoga district, Karnataka, India. It is the second highest plunge waterfall in India. It is a segmented waterfall which depends on rain and season to become a plunge waterfall. The falls are major attractions for tourists and is ranked 36th in the list of free-falling waterfalls, 490th in the world by list of waterfalls by total height, 128th in the list of single-drop waterfalls in the World by the waterfall database.
The electricity sector in Canada has played a significant role in the economic and political life of the country since the late 19th century. The sector is organized along provincial and territorial lines. In a majority of provinces, large government-owned integrated public utilities play a leading role in the generation, transmission, and distribution of electricity. Ontario and Alberta have created electricity markets in the last decade to increase investment and competition in this sector of the economy.
The Jalaput Dam is a hydroelectric dam built on the Machkund River, a tributary of the Godavari River in India which rises in the Mudugal hills of Alluri Sitharama Raju district and near Ondra Gadda it becomes the boundary between the states of Andhra Pradesh and Odisha. This dam is the most ignored one in India, and currently it is in dilapidated condition.
The Godavari River has its catchment area in seven states of India: Maharashtra, Telangana, Chhattisgarh, Madhya Pradesh, Andhra Pradesh, Karnataka and Odisha. The number of dams constructed in Godavari basin is the highest among all the river basins in India. Nearly 350 major and medium dams and barrages had been constructed in the river basin by the year 2012.
The Balimela Reservoir is located in Malkangiri district, Odisha, India on the river Sileru which is a tributary of the Godavari river. The gross storage capacity of Balimela reservoir is 3610 million cubic meters.
Malkangiri, historically known as Malikamardhangiri, is a town and municipality in Malkangiri district in the Indian state of Odisha. It is the headquarter of the Malkangiri district. Malkangiri has been the new home of the East Bengali refugees from erstwhile East Pakistan, who have been rehabilitated since 1965 under the Dandakaranya Project. Some Sri Lankan Tamil refugees were also rehabilitated in the town, following the armed struggle of the Liberation Tigers of Tamil Eelam (LTTE) in the early 1990s, although most of them have now returned to their country. Currently, it is one of the most naxalite-affected areas of the state, and is a part of the Red Corridor.
Hirakud Dam is built across the Mahanadi River, about 10 kilometres (6.2 mi) from Sambalpur in the state of Odisha in India. It is the longest earthen dam in the world. Behind the dam extends a 55 km (34 mi) long lake, Hirakud Reservoir. It is one of the first major multipurpose river valley projects started after India's independence. Hirakud Reservoir was declared a Ramsar site on 12 October 2021.
Damodar Valley Corporation (DVC) is a statutory body which operates in the Damodar River area of West Bengal and Jharkhand states of India to handle the Damodar Valley Project, the first multipurpose river valley project of independent India. Indian Astrophysicist Meghnad Saha, the former chief architect of river planning in India, prepared the original plan for the Damodar Valley Project. It operates both thermal power stations and hydel power stations under the ownership of Ministry of Power, Government of India. DVC is headquartered in the Kolkata city of West Bengal, India.
Sabari River is one of the main tributaries of Godavari. It originates from the western slopes of Eastern Ghats in Odisha state from Sinkaram hill ranges at 1374 m MSL. It is known as Kolab River in Odisha. The Sabari river basin receives nearly 1250 mm annual average rainfall. It forms common boundary between Chhattisgarh and Odisha states. It later enters into Andhra Pradesh to merge with River Godavari. Upper Kolab project, located in Odisha across the Sabari is a major dam project supplying water for irrigation and Hydro power generation.
Sileru River is a tributary of Sabari River in southern India. It originates in Andhra Pradesh and also flows through Odisha before merging with Sabari. Sabari river crosses the border into Andhra Pradesh to merge with Godavari river. Sileru river joins Sabari river tri-junction boundary point of Andhra Pradesh, Chhattisgarh and Odisha.
The electricity sector in Sri Lanka has a national grid which is primarily powered by hydroelectric power and thermal power, with sources such as photovoltaics and wind power in early stages of deployment. Although potential sites are being identified, other power sources such as geothermal, nuclear, solar thermal and wave power are not used in the power generation process for the national grid.
NTPC Limited, formerly known as National Thermal Power Corporation, is an Indian central Public Sector Undertaking (PSU) under the ownership of the Ministry of Power and the Government of India, who is engaged in the generation of electricity and other activities. The headquarters of the PSU are situated at New Delhi. NTPC's core function is the generation and distribution of electricity to State Electricity Boards in India. The body also undertakes consultancy and turnkey project contracts that involve engineering, project management, construction management, and operation and management of power plants.
Chipilima Hydro Electric Project (CHEP) is a hydropower plant located at Chipilima, Sambalpur, Odisha, India.
Energy in Sudan describes energy and electricity production, consumption and imports in Sudan. The chief sources of energy in 2010 were wood and charcoal, hydroelectric power, and oil. Sudan is a net energy exporter. Primary energy use in Sudan was 179 TWh and 4 TWh per million persons in 2008.
The Odisha Construction Corporation or OCC is a premier Government of Odisha undertaking. Established in the year 1962 under the then Indian National Congress government of Biju Patnaik(fourth Chief Minister of Odisha) to undertake specialised civil and mechanical construction works hence creating an infrastructure base in the state of Odisha. The Odisha Construction Corporation is headed by the principal secretary to government, water resources as ex-officio chairman.
Kolab Dam is a gravity dam situated near Jeypore town in Koraput district of Odisha, India. The dam impounds Kolab river which is a tributary of Godavari river.
References
- ↑ Brief History and Background for Its Establishment
- ↑ Power Stations Archived 26 November 2010 at the Wayback Machine
- ↑ Under Construction & New Projects Archived 26 November 2010 at the Wayback Machine