Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive Search

United Arab Emirates

United Arab Emirates, Dubai - ae/21


Dubai Electricity and Water Authority (Dewa), awarded the Strabag Dubai LLC, Strabag AG, Andritz Hydro (Austria) and Ozkar Insaat (Turkie) consortium the EUR340 million (AED1.437 bn) design, build and commission contract for the Hatta pumped storage power plant, located in the Hajar Mountains, 140 km southeast of the city of Dubai.

The project includes:

-              a turbine shaft with a diameter of approximately 36 m and a depth of almost 70 m to house two Francis turbines with a power output of 250 MW;

-              a 1.2 km long pressure tunnel connecting the existing lower reservoir, to be upgraded, to the new upper reservoir.

-              the upper reservoir to be constructed with two roller-compacted concrete dams with a height of approximately 35 m and 70 m.

-              two road tunnels, length 470 m and 440 m, to be built by drill & blast.

-              the reinforced concrete outflow and intake structures;

-              several ancillary buildings as well as their extension and E&M systems.

The project, the first of its kind in the region, will generate 250 MW and it is scheduled to be commissioned by February 2024. Visit https://www.strabag.com, https://www.andritz.com/ and http://www.ozkarins.com.tr/Default.aspx. 40/19.