Corporate Responsibility
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San Carlos Hydroelectric Power Plant

With over 30 years of commercial operations, it is the power plant with the largest installed capacity in the country, with 1,240 MW (megawatts) distributed in eight units, each with 155 MW, and it has the infrastructure necessary to install two additional units. The first stage began operations in 1984 and the second in 1987.

This plant is located in the department of Antioquia, in the jurisdiction of the San Carlos municipality, near the El Jordán township.

The electricity generated by the San Carlos Power Plant is delivered to the National Transmission System (NTS) and then to the Grid's consumption centers through a substation at 230 kilovolts (kV).

The power plant is supervised by the National Dispatch Center (NDC), which carries out the functions of automatic generation control (AGC) when required.

The reservoir on the Guatapé River has an area of 3.4 square meters and a storage capacity of 72 million cubic meters. The Punchiná Dam is an earthfill gravity dam that is 70 meters high and 800 meters long.

See the Location of Our Power Stations

Corporate Governance

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ISAGEN adopts Corporate Governance principles, values and practices that recognize and respect stockholders' rights, guarantee transparency in the Company's management, and disclose information that should be known by the Company's stakeholders.

Financial Information

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ISAGEN publishes annual reports from recent years, quarterly results about the Company's corporate management and, in general, financial data of interest to the market.

Press Room

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Use this resource to find out about the latest Company news and ISAGEN in the media. The Press Room features photos, videos, press releases, graphics and news so that everyone can stay up-to-date about the Company's corporate management.

Switchboard +57 (4) 448 72 27    Fax +57 (4) 448 88 87     Address Carrera 30 No. 10C - 280     E-mail


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