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Ricobayo Dam
The Ricobayo Dam (in Spanish: presa de Ricobayo or salto de Ricobayo) is a hydroelectric engineering work built on the lower course of the Esla river. It is located less than 1 km from Ricobayo de Alba, in the province of Zamora, Castilla y León, Spain.
The section in which it is located is known as the arribes of Esla, a deep geographic depression caused by the millenary erosion of the river.
It is part of the Saltos del Duero system together with the infrastructures installed in Aldeadávila, Almendra, Castro, Saucelle and Villalcampo.
The first project dates from 1919, although the projected height and capacity of the reservoir were lower. Soon the engineers of the Sociedad Hispano Portuguesa de Transportes Eléctricos realized that the flows of the Esla river were capable of creating the largest reservoir in Europe at that time (1200 hm³) with a large regulating capacity that would allow winter water to be stored. This is why in the Agreement of August 11, 1927, signed between Spain and Portugal to regulate the hydroelectric exploitation of the international section of the Douro River, Article 11 stipulates: "The works to be carried out in Spanish territory, directly aimed at the regulation of the Douro in its international section, referred to in Article 10 of the Royal Decree-Law of August 23, 1926, will begin with the construction, on the Esla River, of the dam called Ricobayo, province of Zamora".
Work began in May 1929. The new Ricobayo Dam will regulate the flow of the Esla River and supply electricity to the north of Spain. It was put into operation in January 1934 with an installed power of 100 MW, which in 1947 will be increased to 133 MW. Notwithstanding the above, the official date of the start of operation is February 4, 1935, which is the date recorded by the Government in official documents.
During the construction of the dam, the village of Salto del Esla was built to house the workers who participated in its construction. Some of these houses are still inhabited.
Its construction led to the stone by stone transfer of the Visigothic temple of San Pedro de la Nave to the town of El Campillo.
It was granted a concession period of 75 years from 1935 when it began to operate, so that in 2010 the infrastructure should be handed over to the State. In 1990, Iberdrola presented a new reform and expansion plan that would add to the existing plant, Ricobayo I, another new plant, Ricobayo II, with 151 MW. With this investment of 7651 million pesetas, the Government extended by 30 years the date on which Iberdrola would have to return the reservoir to the State, in 2040, so that it would enjoy its use for a total of 108 years, until 2040.
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Ricobayo Dam
The Ricobayo Dam (in Spanish: presa de Ricobayo or salto de Ricobayo) is a hydroelectric engineering work built on the lower course of the Esla river. It is located less than 1 km from Ricobayo de Alba, in the province of Zamora, Castilla y León, Spain.
The section in which it is located is known as the arribes of Esla, a deep geographic depression caused by the millenary erosion of the river.
It is part of the Saltos del Duero system together with the infrastructures installed in Aldeadávila, Almendra, Castro, Saucelle and Villalcampo.
The first project dates from 1919, although the projected height and capacity of the reservoir were lower. Soon the engineers of the Sociedad Hispano Portuguesa de Transportes Eléctricos realized that the flows of the Esla river were capable of creating the largest reservoir in Europe at that time (1200 hm³) with a large regulating capacity that would allow winter water to be stored. This is why in the Agreement of August 11, 1927, signed between Spain and Portugal to regulate the hydroelectric exploitation of the international section of the Douro River, Article 11 stipulates: "The works to be carried out in Spanish territory, directly aimed at the regulation of the Douro in its international section, referred to in Article 10 of the Royal Decree-Law of August 23, 1926, will begin with the construction, on the Esla River, of the dam called Ricobayo, province of Zamora".
Work began in May 1929. The new Ricobayo Dam will regulate the flow of the Esla River and supply electricity to the north of Spain. It was put into operation in January 1934 with an installed power of 100 MW, which in 1947 will be increased to 133 MW. Notwithstanding the above, the official date of the start of operation is February 4, 1935, which is the date recorded by the Government in official documents.
During the construction of the dam, the village of Salto del Esla was built to house the workers who participated in its construction. Some of these houses are still inhabited.
Its construction led to the stone by stone transfer of the Visigothic temple of San Pedro de la Nave to the town of El Campillo.
It was granted a concession period of 75 years from 1935 when it began to operate, so that in 2010 the infrastructure should be handed over to the State. In 1990, Iberdrola presented a new reform and expansion plan that would add to the existing plant, Ricobayo I, another new plant, Ricobayo II, with 151 MW. With this investment of 7651 million pesetas, the Government extended by 30 years the date on which Iberdrola would have to return the reservoir to the State, in 2040, so that it would enjoy its use for a total of 108 years, until 2040.