Kotmale Dam | |
---|---|
Country | Sri Lanka |
Location | Kotmale |
Coordinates | 07°03′39″N80°35′50″E / 7.06083°N 80.59722°E |
Purpose | Power |
Status | Operational |
Construction began | February 1979 |
Opening date | August 1985 |
Owner(s) | Mahaweli Authority |
Dam and spillways | |
Type of dam | Embankment dam |
Impounds | Kotmale Oya |
Height (foundation) | 87 m (285 ft) |
Length | 600 m (1,969 ft) |
Spillways | 3 |
Reservoir | |
Creates | Gamini Dissanayake Reservoir |
Kotmale Power Station | |
Coordinates | 07°07′41″N80°34′42″E / 7.12806°N 80.57833°E |
Operator(s) | Ceylon Electricity Board |
Turbines | 3 × 67 MW |
Installed capacity | 201 MW |
Annual generation | 450 GWh |
Website https://www.mahawelicomplex.lk/power-stations/kot/ |
The Kotmale Dam is a large hydroelectric and irrigation dam in Kotmale, Sri Lanka. The dam generates power from three 67 MW turbines, with a total installed capacity to 201 MW, making it the second largest hydroelectric power station in Sri Lanka. Construction on the dam began in August 1979 and was ceremonially completed in February 1985. [1] The dam forms the Kotmale Reservoir, which was renamed to Gamini Dissanayake Reservoir on 11 April 2003 following a request by Prime Minister Ranil Wickramasinghe. [2] [3]
Dissanayake Mudiyanse Ralahamilage Lionel Gamini Dissanayake, PC was a prominent Sri Lankan politician, a powerful minister of the United National Party, and Leader of the Opposition. He was designated as the UNP candidate in the 1994 presidential election, but was then assassinated by the Liberation Tigers of Tamil Eelam (LTTE).
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 honour of Queen Victoria of the United Kingdom.
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.
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.
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 downstream.
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.
The Bowatenna Dam is a 100 ft (30 m) high gravity dam at Bowatenna, in 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.
The Castlereigh Dam is a gravity dam built across the Kehelgamu Oya, a major tributary to the Kelani River, approximately 3 km (1.9 mi) south-west of Hatton, in the Central Province of Sri Lanka. The dam is a popular location for both locals and tourists.
The Norton Dam is the gravity dam built across the Kehelgamu Oya, which is a main tributary to the Kelani River. The dam is built at Norton Bridge, in the Central Province of Sri Lanka.
The Canyon Dam is a large arch-gravity dam built across the Maskeliya Oya, 4.5 km (2.8 mi) upstream of the iconic Laxapana Falls, in the Central Province of Sri Lanka. The associated power station plays a major role in the national power grid, due to its significant output. The dam is surrounded by steel structures of the substation.
The Laxapana Dam is a gravity dam built across the Maskeliya Oya, 2.8 km (1.7 mi) downstream of the Laxapana Falls, in the Central Province of Sri Lanka.
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 dam feeds an underground hydroelectric power station located approximately 5 kilometres (3.1 mi) away, via tunnel.
The Udawalawe Dam is a large irrigation dam in Udawalawe, in the Southern Province of Sri Lanka. The dam consists of an embankment section and a gravity section, combining the total dam length to approximately 3.9 km (2.4 mi). The dam is also used for hydroelectric power generation, powering two 2 MW units, commissioned in April 1969.
The Gal Oya Dam is an embankment dam in the Uva Province of Sri Lanka. The dam creates one of the largest reservoirs in the country, the Gal Oya Reservoir. Water from the reservoir is used primarily for irrigation in the Uva and Eastern provinces, in addition to powering a small hydroelectric power station. Construction of the dam and reservoir began in August 24, 1949, completing four years later in 1953.
The Nilambe Dam is a small hydroelectric dam build across the Nilambe River, measuring approximately 70 m (230 ft) in length. Water from the Nilambe Dam is transferred to the 3.2-megawatt Nilambe Power Station through a 2.8 km (1.7 mi) penstock. The power station consists of two 1.6 MW generating units, which were commissioned in July 1988.
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. Upon completion, the Moragolla Power Station would have a gross installed capacity of 30 megawatts from two francis turbines, capable of generating approximately 85 GWh annually.
Mudiyanselage Andrew Dissanayake was a Ceylonese businessman, landholder and politician.
Donald Jasen Ranaweera was a Sri Lankan plantation owner, press baron and politician. He was the Chairmen of the Times of Ceylon and served as the member of parliament from Maskeliya (1960) and Nuwara Eliya (1965-1970).