HPP Nurek, Tajikistan
Grand official ceremony for the start of rehabilitation program of the largest hydropower plant in Central Asia
In the presence of local authorities and the ANDRITZ management, Dr. Wolfgang Leitner, President and CEO of ANDRITZ AG and Wolfgang Semper, Member of the Managing Board ANDRITZ HYDRO GmbH, the rehabilitation project of the Nurek hydropower plant was officially opened by H.E. the President of Tajikistan, Emomali Rakhmon on March 20, 2019.
During the grand ceremony, the draft overhaul of the entire hydropower plant as well as the process of reconstruction of the units was presented. After the presentation, the president of Tajikistan gave specific instructions to the Ministry of Energy and Water Resources of the Republic to monitor the quality of work. The head of state expressed his strong wish to the contracting company of the project - ANDRITZ Hydro, the project consultant, the Swiss company Stucky Ltd., and the subcontractor of the project, the domestic company" Tajik SGEM " for the timely implementation of the project.
According to the press service of the President of Tajikistan, the station operates currently at about 2,600 MW capacity due to the obsolescence of the main equipment. The project “Rehabilitation of the Nurek Hydroelectric Power Plant” will lead that the plant’s design capacity will be increased from 3,000 to 3,300 MW. In total, the capacity of the power generation station will be boosted by about 700 MW. It will provide renewable and sustainable clean energy to the whole country.
In 2018, ANDRITZ Hydro received a contract from Barqi Tojik, Tajikistan, for rehabilitation and modernization of the entire electro-mechanical equipment for HPP Nurek, including inspection and repair the penstocks. The scope of supply comprises comprehensive modernization of the existing nine generating units by supplying and installing new 380 MW Francis turbines and generators, including new transformers, as well as the electrical and mechanical auxiliary equipment within the power house.
The rehabilitation work will be executed in two phases. In the first stage, three units with their auxiliary equipment and the transformers will be replaced as well as the dam safety improved. The implementation period of this phase is planned for five years from 2019 - 2023.
The second phase of the project covers the reconstruction of six remaining units and auxiliary equipment of the station, and will be implemented over five years from 2024 - 2028.
The design of the new units takes account of the plant’s annual storage operations and will, therefore be suitable for operation with a wide range of heads. Together with the Rogun hydropower plant, which is under construction and located upstream of the Nurek reservoir, this project will optimize water storage management on the Vaksh river cascade, ensuring a significant increase in electrical energy production by the Nurek hydropower station as well as meeting the changing grid demands. The contract also stipulates that environmental conservation measures and water management requirements must be incorporated.
The rehabilitation of Nurek will safeguard the electrical energy supply in the Republic of Tajikistan and make an important contribution towards the strategic use of renewable energy from hydropower in Central Asia. It also offers interesting opportunities for exporting energy to neighboring countries, with the related economic benefits for the countries concerned.
The award of this contract further strengthens ANDRITZ’s market position in the important region of Central Asia.