Hidropesac, Malaga's joint hydro venture with Emerging Power Developers S.A. (EPD) of Switzerland and Peru energy company Electrokraft S.A., brought the project's 450-kW horizontal and 150-kW vertical Pelton turbines fully on line in January. Stucky Ltd. of Switzerland assisted the development. Hidropesac invested more than US$3 million in the project.
The hydro project replaces a plant originally built in the 1950s that had an 800-kW installed capacity. (HNN 5/2/08) The renovated Pasto Bueno's two units operate under a head of 170 meters. The plant has a 22.9-kilovolt transmission line and two new 22.9-kilovolt/380-volt substations on the Huaura mining compound to supply an ore crushing plant and main mining galleries.
�The development of Pasto Bueno's hydroelectric potential will not only save the company a considerable amount of money, but will also allow it to reduce its emissions of greenhouse gases,� Malaga President Jean Martineau said. �Furthermore, Malaga is now 90 percent energy independent of the national power grid which will protect the company from any future increases in cost of energy.�
Malaga said construction of the hydro plant was financed through sale of carbon credits under the United Nations' Clean Development Mechanism. The project has led to a reduction of 4,000 tons of carbon dioxide emissions per year by displacing fossil fueled generation at the mine site.
Malaga said Hidropesac now is planning Phase 2 of developing the hydroelectric potential of the Pelagatos River. It said a second hydro plant is planned that would fully meet the mine's power needs and would allow sale of additional power to the national grid.