Colbún

2011

Janury
This month we started supplying the regulated consumption of Chilectra power distributor as a result of the enforcement of the contract awarded in 2007, which involves an annual supply of approximately 2,500 GWh.t

February…

2010

January
The first bond is emitted in international markets for US$ 500 million at a placement rate of 6,139 a year for a period of 10 years. The bond has a “bullet” structure with monthly…

2009

January
Begins the application of International financial information norms (NIIF) and the US dollar is adopted as functional currency.

In the frame of the distributing company’s tenders, Colbún is awarded with supply contracts with CGED for…

2008

January
Hornitos Hydroelectric Central enters service.

February
The first decree for electric rationing is promulgated for the year 2008.

July
Two projects are registered before the Clean Development of the United Nations Director’s Board: The hydroelectric centrals of Quilleco…

2007

May
Dual operation (natural gas and diesel oil) of Nehuenco II Central starts working.

June
Quilleco hydroelectric Central enters service.

The Corema of the Bío Bío region approves the Environmental Impact Study of the project “Santa María I…

2006

May
Tractebel sell their entire share in Colbún S.A.

In this sale Antarchile S.A. society, related to the Angelini Group, purchases a 9,53% of the property of Colbún S.A.

August
A society is created for the development of…

2005

August
Energy market: Matte contributes to Colbún US$ 750 Millions in active.

Santander Investment and Bear Stearn foresee that their patrimony will grow over 50% after their fusion with Minera Valparaíso.

August
Colbún becomes the second electric actor…

2004

May
Combined Cycle Thermal Central Nehuenco is operative.

2003

May
Colbún started phase one in Nehuenco Central II.

August
The company signs a contract for the supply of Conafe, that will be effective from May, 2005.

October
Conama council of ministers authorizes the Candelaria Central Project in the…

2002

June
Commercial operation of open cycle thermal central Nehuenco III starts.

2001

July
A supply agreement with Codelco is reached.

September
Corfo sells the major part of their stock in the local stock market and the company changes its name to Colbún S.A.

1999

April
Failures in Nehuenco I force stopping its operation for repair.

August
Central Nehuenco I is functioning again and is reconnected to the Interconnected Central System (SIC).

1998

April
Hydroelectric Central Rucúe enters service.

November
Combined Cycle Thermal Central Nehuenco I starts operating.

1996

October
Corfo stops controlling the company by selling 37% of their share in Colbún Machicura Electric Company S.A.

November
Hydroelectric Central San Ignacio starts working.

1993

March
Colbún signs the biggest contract in its history with Chilectra: US$ 300 Million for seven years.

1989

December
Corfo announces the sale of all its Colbún stock. The titles correspond to 99% of the hydroelectric company capital.

1987

November
Colbún Machicura S.A. inaugurates in the 7th region of Maule three great works destined to improve and secure the irrigation of 46 thousand hectare of farming soil (San Clemente Canal, Maitenes System and…

1986

April
Starting from the division of National Electric Company S.A., Endesa; Colbún Machicura Electric Company S.A. was created as a subsidiary of Corfo.

1985

June
Colbún-Machicura Complex starts delivering energy. Trial period.

July
The hydraulic centrals of Colbún and Machicura start working.

September
The hydraulic centrals of Colbún and Machicura are inaugurated.

1984

December
The giant Colbún-Machicura starts filling the reservoir. One thousand five hundred millions cubic meters of water will be accumulated until March 1st, 1985.

1983

April
The construction of Colbún –Machicura begins, constituted by Colbún and Machicura centrals.

1979

August
Endesa announces pre qualification for companies interested in building the Colbún-Machicura Complex. Tender was formalized at the beginning of 1980