Media

At the production site of the Khvoynoye Gold Processing Plant of the Polymetallic Holding Group Seligdar (hereinafter referred to as the Holding Group or Seligdar), the main works on the creation of a backup power centre for the Khvoynoye Gold Processing Plant have been completed.

Khvoynoye is the highest-capacity and the fourth gold processing plant of Seligdar. It is located in the Aldan District of Yakutia and is the largest facility of this type in the region. The design capacity of the plant is 3 million tonnes of ore per year.

The Khvoynoye Gold Processing Plant was officially commissioned in the summer of 2025 with the participation of the Head of the Sakha Republic (Yakutia) Aysen Nikolaev and was already connected to the main 110-kilovolt power grid. Construction of the backup power centre is a necessary condition for achieving the maximum declared production parameters and for ensuring stable operation without downtime. To address the task of creating reserve generation, the company engaged the specialists of Techexpo.

The main objective during the design and construction of the backup power centre was not only the selection of high-quality equipment for the stable operation of a large industrial continuous-cycle enterprise, but also continuous technical supervision and control of all construction stages. A distinctive feature of the project is the location of the facility in a territory with extreme weather conditions. In this regard, individual design solutions and adaptations to the severe climatic conditions of Yakutia were applied. The new power centre uses fully automated control algorithms, which make it possible to ensure uninterrupted operation of the gold processing plant, including without the participation of personnel.

Within the framework of the project for the Khvoynoye Gold Processing Plant, Techexpo specialists developed the working documentation, ensured the delivery of a large multi-component power complex with a total capacity of 10 megawatts, and also carried out construction, installation and commissioning works. The complex also includes a fuel and lubricants storage facility with above-ground and underground tanks. Four diesel power stations in fully welded container units with a capacity of 2.5 megawatts each were installed; the diesel generators are synchronised with the grid and with each other. The project covered the full life cycle, from design documentation to commissioning and testing.

“Khvoynoye is a strategically important project for us. During its construction we used only the most advanced technologies and equipment. We had the same requirements for the contractor when creating the backup power centre. According to the standard, the time required to switch to backup power must not exceed the time of automatic power restoration. The high-capacity energy complex delivered on a turnkey basis by Techexpo specialists will ensure stable operation of production,” said Sergey Tatarinov, Chief Executive Officer of Seligdar PJSC.

“The project has become one of the largest-scale and most technologically complex in the history of our company: from the first consultations to the system launch, more than two years passed, including one and a half years of detailed elaboration of technical solutions jointly with the customer and the design organisation. We were able to integrate a number of solutions ensuring guaranteed reliability in harsh climatic conditions. The system developed by Techexpo automatically starts the diesel power stations when voltage is lost in the main grid, and the installed equipment begins supplying power to the plant without personnel involvement and without stopping the technological process. This is one of the few projects of this kind in Russia with such a high level of automation and technological sophistication,” commented Philipp Vratskikh, Chief Executive Officer of Techexpo.