E.ON Spain - History of E.ON España

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History of E.ON España

The company known today as E.ON España was founded on July 13, 1906.

Initially, the company’s plants and properties consisted of a hydoelectric plant located at Puente Viesgo in Cantabria, a 25 kilometer electric line that joined Puente Viesgo to Santander and a plant on Tantin Street in Santander.

During the first half of the twentieth century, important investments were made, including the construction of numerous plants, substations and electric lines to meet the growing energy demands and guarantee services.

Viesgo’s principal financial investments during the nineteen thirties took place through participation in the establishment of two companies: Barras Eléctricas Galaico-Asturianas, whose objective was supplying energy to the east of Asturia and in the province of Lugo, and Distribuidora Palentina de Electricidad, which supplied to a wide zone in the province of Palencia.

Throughout the following decade, the then Electra de Viesgo acquired practically all of the shares of the following distribution companies: Electra Pasiega, Electra Vasco Montañesa, Electra Salcedo, Compañía de Electricidad Montaña and Electra del Esva. Once this process of expansion was concluded, its current electric distribution market was practically configured, which covers four Autonomous Communities: Cantabria, Asturias, Castile and Leon (Palencia and Burgos) and Galicia (Lugo).

Aguayo was the last of the major efforts constructed by Viesgo. It is located in Cantabria, extending between the municipal districts of San Miguel de Aguayo and Bárcena de Pie de Concha and to the basin of the Torina river. It is a pumping plant that uses the unevenness created between water deposits that are joined together through penstock pipe with the hydroelectric plant inserted in its path. This also allows the use of the Alsa reservoir as part of the Ebro-Besaya transfer system. The plant is equipped with four reversible generator groups of 85,000 kW each that went into service successively in 1983 and 1984.

In 1983 the then Electra de Viesgo was acquired by Banco Santander, and then in 1991 it was integrated into Grupo Endesa until its sale in 2002 to the Italian electric group Enel.

E.ON, which has been in Spain since August, 2007, through E.ON Renovables, acquired Viesgo and the Los Barrios and Tarragona plants, which belonged to Endesa, on June 27, 2008, the date on which E.ON España was created as a market unit. Our company’s objective is to become the fourth largest operator in the country by the year 2010 with a 10% market share. Our plans are to increase generation capacity from 2.5GW to 4.5GW within the next two years, with a workforce of nearly 1,300 professionals who bring energy to more than 650,000 customers.