Central-South HVDC Link
- Contractor
- Hyundai Engineering & Construction
- Location
- Central and Southern regions, KSA
- Voltage
- 500 kV HVDC
- Line length
- 367 km
- Project reference
- PTS-23KO004
- Services
- Power and transmission
About the project
Portion 1 of the 500 kV high-voltage direct current (HVDC) overhead transmission line for the COA-SOA interconnection, which links the Central and Southern operating areas of the Saudi power grid. At 367 km, it is the longest single section in SDEC's current transmission portfolio. HVDC links of this kind carry large blocks of power between regions over long distances, with lower losses than conventional AC lines.
Scope of work
SDEC provided engineering design for this 367 km portion of the line, working with Hyundai Engineering & Construction as the construction contractor. SDEC's overhead transmission line services cover line layouts, tower structures, foundations and coordinated design verification.


