Moragolla Dam

Last updated
Moragolla Dam
Country Sri Lanka
Location Moragolla
Purpose Hydroelectricity
StatusPlanned
Opening date2021
Owner(s)Mahaweli Authority
Dam and spillways
Type of dam Gravity dam
Impounds Mahaweli River
Height (foundation)35 m (115 ft)
Spillways 5
Reservoir
CreatesMoragolla Reservoir
Total capacity1,980,000 m3 (70,000,000 cu ft)
Moragolla Power Station
Operator(s) Ceylon Electricity Board
Type Conventional
Turbines 2 × 15 MW
Installed capacity 30 MW
Annual generation 85 GWh

The Moragolla Dam is a planned hydroelectric dam in Moragolla, Sri Lanka. The dam is to be 35 m (115 ft) high and is planned to create the 1,980,000 m3 (70,000,000 cu ft) Moragolla Reservoir with a maximum supply level at 548 m (1,798 ft) MSL. [1] Upon completion, the Moragolla Power Station would have a gross installed capacity of 30 megawatts from two francis turbines, [2] capable of generating approximately 85 GWh annually. [3]

Contents

Preliminary assessments and feasibility studies of the hydroelectric dam and power station began on 24 September 2012, [3] with an estimated commissioning date in 2021. [2] The dam is planned to impound the Mahaweli River at Weliganga and have five spillways, [1] with the powerhouse located approximately 500 m (1,600 ft) from the tailrace discharge of the Kotmale Power Station. [4]

Environmental impact

The construction of the Moragolla Dam and underground penstocks posed significant threats to the endangered green labeo fish species in the project site. This has caused many delays and added cost to the development of the hydropower facility. [1]

Energy

Moragolla is the last major Hydro Power Plant in Mahaweli Ganga Hydro Power Scheme. The project site is located on the upper reaches of the Mahaweli Ganga in the Central Highlands, approximately 22 km south of Kandy City close to the village of Ulapane in the Kandy district and about 130 km North-East of Colombo.

Green Power Development & Energy Efficiency Improvement Investment Programme of Ceylon Electricity Board funded by Asian Development Bank with the Project Consultancy of Nippon Koei Co. Limited, Japan and Fitchner GmbH, Germany formulated this 30 MW Hydro Power Project.

Minel Lanka [5] is the Bid Consultant for China Gezhouba Group Co. Limited, China in Project Lot A2 - Main Civil Construction Works to become the First Chinese EPC company to win a Power Generation Project in Sri Lanka under International Competitive Bidding and Financing.

Moragolla Hydro Power Plant consists of 37 m high dam with five spillway gates, intake, head race tunnel, surge tank, penstock tunnel and shaft, power house with switchyard, relocation of irrigation and access roads.

See also

Related Research Articles

Tarbela Dam Dam in Swabi, Khyber Pakhtunkhwa, Pakistan

Tarbela Dam is an earth-filled dam along the Indus River in Pakistan's Khyber Pakhtunkhwa province. Located in the Swabi mainly and in some area of Haripur District of the province, The dam is about 30 km (20 mi) from the city of Swabi, 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).

Xiaowan Dam

The Xiaowan Dam is an arch dam on the Lancang (Mekong) River in Nanjian County, Yunnan Province, southwest China. The primary purpose of the dam is hydroelectric power generation and it supports a 4,200 MW power station. Constructed between 2002 and 2010 by Huaneng Power International at a cost of ¥32 billion, it is the world's second highest arch dam at 292 m (958 ft). It is also third highest among dams of all types behind Jinping-I and Nurek and the third largest hydroelectric power station in China.

Victoria Dam (Sri Lanka) Dam in Teldeniya

Victoria Dam is an arch dam located 130 mi (209 km) upstream of the Mahaweli River's mouth and 4 mi (6 km) from Teldeniya. It is named in honor of Queen Victoria.

Samanala Dam Dam in Balangoda

The Samanala Dam is a dam primarily used for hydroelectric power generation in Sri Lanka. Commissioned in 1992, the Samanalawewa Project is the third-largest hydroelectric scheme in the country, producing 405 GWh of energy annually. It was built with financial support from Japan and the United Kingdom. It is notable for a large leak on its right bank. Power production continues as planned despite the leakage, and the water from the leak now provides two thirds of the water issued by the reservoir for agriculture in downstream areas.

Yeywa Dam Hydropower station in Myanmar

The Yeywa Hydropower Station, located on the Myitnge River, 52 kilometres (32 mi) southeast of Mandalay city, at Yeywa village in Kyaukse Township, Mandalay Region in central Myanmar, is the country's first roller-compacted concrete (RCC) dam, and the site of a 790-megawatt (1,060,000 hp) hydroelectric power plant, the largest in the country.

Upper Kotmale Dam Dam in Talawakele, Nuwara Eliya

The Upper Kotmale Dam is located in Talawakele, within the Nuwara Eliya District, in the Central Province of Sri Lanka. The dam feeds the third largest hydroelectric power station in the country.

Irganai Dam Dam in Untskul region

Irganai Dam is a hydroelectric dam in the Untskul region of Dagestan, Russia. It is located on the river Avar Koisu.

Moragolla is a village in Sri Lanka. It is located within Central Province.

Ruskin Dam and Powerhouse Dam in Ruskin, British Columbia

Ruskin Dam is a concrete gravity dam on the Stave River in Ruskin, British Columbia, Canada. The dam was completed in 1930 for the primary purpose of hydroelectric power generation. The dam created Hayward Lake, which supplies water to a 105 MW powerhouse and flooded the Stave's former lower canyon, which ended in a small waterfall approximately where the dam is today.

Dongfeng Dam Dam in Qingzhen

The Dongfeng Dam is an arch dam on the Wu River 65 km (40 mi) northwest of Qingzhen in Guizhou Province, China. The primary purpose of the dam is hydroelectric power generation and it supports a 570 MW power station. Construction on the dam began in 1989 and the first generator was operational in 1994, the last in 1995. The generators were up-rated between 2004 and 2005; bringing their capacity from 170 MW each to 190 MW.

Denis-Perron dam Dam in Sept-Rivières Regional County Municipality, Québec

Denis-Perron dam is a rockfill embankment dam spanning the Sainte-Marguerite River, a tributary of the lower Saint Lawrence River, in eastern Quebec, Canada. Standing 171 metres (561 ft) high and 378 metres (1,240 ft) long, the dam is the primary component of Hydro-Québec's Sainte-Marguerite 3 hydroelectric project. The dam is the second highest in Quebec and the hydraulic head afforded to its power plant is also the largest in the province.

Broadlands Dam Dam in Kitulgala

The Broadlands Dam is a 35 MW run-of-the-river hydroelectric complex currently under construction in Kitulgala, Sri Lanka. The project is expected to be completed in 2020, and will consist of two dams, and a power station further downstream.

Randenigala Dam Dam in Rantembe, Central Province

The Randenigala Dam is a large hydroelectric embankment dam at Rantembe, in the Central Province of Sri Lanka. Construction of the dam began in November 1982, and was completed in approximately 4 years. The dam and power station was ceremonially opened by then President J. R. Jayawardene in 1986.

Moragahakanda Dam Dam in Elahera, North Central Province

The Moragahakanda Dam, officially as Kulasinghe Reservoir, is a large gravity dam, and the main component of the larger and more complex Moragahakanda — Kalu Ganga Project, across the Amban River at Elahera, in the Matale District of Sri Lanka. Construction began on 25 January 2007 and was completed in 2018. The maiden waters of the dam was released in January 2017. Morgahakanda/Kaluganga project is the last of the Great Mahaveli project

Bowatenna Dam Dam in Bowatenna

The Bowatenna Dam is a 100 ft (30 m) high gravity dam at Bowatenna, in the Naula, Central Province of Sri Lanka. The dam was built in June 1981, and is used primarily for irrigation. A 40 MW power station is also constructed 5,800 ft (1,800 m) downstream, for hydroelectric power generation.

Polgolla Barrage Dam in Polgolla, Central Province

The Polgolla Barrage, is a barrage built across the Mahaweli River at Polgolla, in the Central Province of Sri Lanka. The barrage is used to increase the volume of water, for transfer to the hydroelectric power station located 8 km (5 mi) north, via penstock.

Kukule Ganga Dam

The Kukule Ganga Dam is a 110 m (360 ft) gravity dam built across the Kukule River in Kalawana, Sri Lanka. The run-of-river-type dam feeds an underground hydroelectric power station located approximately 5 kilometres (3.1 mi) away, via tunnel.

Kulekhani Reservoir Dam in Kulekhani, Makwanpur District, Narayani Zone

The Kulekhani Dam is a rock-fill dam on the Kulekhani River near Kulekhani in Makwanpur District of Narayani Zone, Nepal. The primary purpose of the dam is hydroelectric power generation and it supports the 60 MW Kulekhani I and 32 MW Kulekhani II Hydropower Stations. Construction began in 1977 and Kulekhani I was commissioned in 1982. Kulekhani II was commissioned in 1986 and a third power station, the 14 MW Kulekhani III was expected to be commissioned in May 2015 but is delayed due to issues with the builder. The project has not been completed until the year 2017 and is expected to generate electricity by the end of 2018. The US$117.84 million project received funding from the World Bank, Kuwait Fund, UNDP, Overseas Economic Cooperation Fund and OPEC Fund. It is owned by Nepal Electricity Authority.

References

  1. 1 2 3 Dissanayaka, Nisansala (16 March 2017). "Hydropower vs endangered fish: CEB's proposed hydropower project a threat to endangered species". Daily Mirror . Retrieved 2 July 2017.
  2. 1 2 "Mahaweli Hydro Power Complex". Mahaweli Hydro Power Complex. Retrieved 2 July 2017.
  3. 1 2 "Moragolla Hydropower". Ministry of Power and Renewable Energy . Retrieved 2 July 2017.
  4. "Sri Lanka seeks construction supervision of 30.2MW Moragolla hydropower project". Hydroworld.com. 10 October 2014. Retrieved 2 July 2017.
  5. "Minel Lanka Projects" . Retrieved 14 August 2021.