TSK will build, for the Federal Electricity Commission (CFE), the second phase of the Azufres III geothermal field. The plant, located in the province of Michoacan, 250 km from Mexico City, with a capacity of 25 MW, will have an average annual output reaching 200 Gigawatt hours per year.
This project was awarded through an international competitive bidding process organized by the CFE in which the offer presented by TSK was the winner with a total score of 99.76 points out of 100 possible.
Under the scope of this contract, TSK will perform the engineering, procurement of equipment, complete construction and commissioning of the geothermal plant, including the substation and connection thereof to the CFE 115 kV grid. The deadline for carrying out the project is 30 months. Work will start next January 2016.
Geothermal is a renewable source of energy with great present and future potential, using the energy from the heat inside the Earth. Specifically this project will extract steam from the Los Azufres Geothermal Field, the second geothermal reservoir of Mexico and one of the largest in the world. To capture the steam, extraction wells will be sunk to depths between 2 and 2.5 km.
The fluid reaching the surface from the geothermal reservoir is a steamliquid mixture flowing naturally with no need for artificial pumping. After a filtering process and separation of water, the steam enters the turbine at a temperature of approximately 170ºC. The geothermal steam drives the turbine coupled to the electric generator, producing electricity at 13.8 kV, which rises to 115 kV at the plant substation to be subsequently exported to the grid.
The steam flow exiting the turbine is condensed and subsequently cooled to a temperature of around 20ºC. At this temperature, the condensed steam and remaining geothermal fluid are reinjected into the geothermal reservoir to begin the cycle once more.
This project consolidates TSK’s presence in Mexico, where it has been carrying out projects since 2012, and at the same time reaffirms the company as a world leader in the field of renewable energies, in which it already holds a leading position in wind, hydro and solar technologies, due to the number of projects implemented as well as the company’s own technological solutions developed in numerous projects worldwide.
So far this year TSK has obtained important projects in Latin America, the Middle East and Africa, reaching a record figure for contracts of over 1,000 million euros.