Kumho E&C said on the 1st that it won the contract for "Pyeongtaek-area power supply facilities power duct construction (New Pyeongtaek–Godeok #3) section 2," ordered by Korea Electric Power Corporation (KEPCO).
The project will build an underground power tunnel (power duct) over a total length of about 5.4 km connecting Suksong-ri in Oseong-myeon and Godeok-dong in Pyeongtaek, Gyeonggi Province. It is a core power infrastructure project essential to improving power supply stability for industrial complexes in the Pyeongtaek area, including the Samsung Electronics Pyeongtaek Campus phase 2 complex, and it has been pursued under the high-difficulty comprehensive evaluation bidding method.
The total project cost is 218 billion won. Kumho E&C will participate as the lead company of the consortium with an 80% equity stake (174.4 billion won), and the construction period is 49 months from the groundbreaking date.
The total length of the power duct will be 5,423 meters. Of that, about 5,310 meters will be built using a deep excavation method with a shield TBM (shield tunnel boring machine). The shield TBM is a high-difficulty method that requires precise control of ground pressure and the excavation face, and it demands advanced technology and experience to ensure stable construction in urban areas and complex ground conditions. The method enables precise excavation deep underground, making it effective for building large power ducts while minimizing noise, vibration, and ground disturbance.
At the same time, a 113-meter section will be built using the cut-and-cover method, which excavates from the surface down, and four vertical shafts—essential structures that connect the underground power duct with aboveground facilities—will also be installed.
Once the project is completed, a more stable power supply will be possible not only for the Samsung Electronics Pyeongtaek Campus but also for industrial complexes and the local community across Pyeongtaek, which is expected to contribute to revitalizing the regional economy and strengthening the competitiveness of energy infrastructure.
A Kumho E&C official said, "We will successfully carry out this project based on our experience with high-difficulty shield TBM methods and large-scale power duct construction," adding, "We will do our best to ensure stable power is supplied to the region and industrial complexes."