Chit Lom Electricity Terminal Station and Transmission Line Tunnel

Client : Metropolitan Electricity Authority (MEA)

Services :  Detailed Design and Construction Supervision

TEAM GROUP was entrusted with the design and construction supervision of the Chit Lom electricity terminal station, along with a transmission tunnel connecting Bang Kapi and Chit Lom stations. This project was initiated to enhance the electricity distribution efficiency of MEA in order to meet the increasing demand for electricity in Bangkok’s business areas.


The Chit Lom station was first constructed in 1980 to transmit electricity from Bang Kapi station to the areas of Ratchaprasong, Phloen Chit, Sukhumvit, Silom and Pathumwan. However, oil leakage from the underground and time-worn oil-filled transmission lines caused frequent short circuits, affecting the security of the distribution system. The MEA thus decided to construct a large new terminal station and underground conduit.


The new station is housed in a reinforced concrete 10- story structure with a total functional area of 8,500 m2, designed for the installation of three 230/69 kV 300 MVA transformers (two are currently installed), SCADA system, oil tanks for the oil-filled cables, and other control systems.