The Qatar General Electricity & Water Corporation (Kahramaa) has signed contracts worth a total of QR7.7bn ($2.1bn) for phase 11 of its transmission system expansion plan.

The engineering, procurement and construction (EPC) contracts include the supply and commissioning of transmission lines and substations, and the dismantling of some overhead lines. The contracts include packages for stages 1 and 2 of phase 11 of the transmission programme.

The first stage of phase 11 will involve the commissioning of 32 substations, which includes 26 main substations and six framework substations. In addition, a total of 948.6-kilometre of cables will be laid and 43km overhead lines will be dismantled.

The second stage contracts will involve the commissioning of 20 substations, including 14 main substations and six framework substations. About 82km of cables will be laid and 54.5km of overhead lines will be dismantled.

The contracts of the first stage of phase 11 will facilitate commissioning of total 32 substations comprising 26 main substations and six framework substations. Apart from it, a total 948.6km (main and framework) cables will be laid and 43km of overhead lines will be dismantled.

The contractors which signed the contracts with Kahramaa are:

  • Elsewedy Cables (Egypt)
  • Galfar al-Misnad (local)
  • National Contracting Company (Saudi Arabia)
  • Siemens (Germany), Alstom (France)
  • Mott Macdonald (UK)
  • Larsen & Toubro (India)
  • ABB (Switzerland)
  • Energoprojeck Entel (Serbia)
  • ETA Star International (UAE)
  • Prysmian (Italy)
  • Taihan Electric wire (South Korea).

Siemen’s contract is worth QR290m and involves providing and installing nine substations in Doha, which will supply power to residences, businesses, hospitals, schools and shopping malls. The German firm will provide gas-insulated switchgears (GIS), which will include voltages of 220kV, 132kV and 66kV. The work is scheduled to take 26 months to complete.

Kahramaa has also signed a deal with the Qatar International Cable Company to provide cables for the second stage of phase 11.