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Dubai's M-Station expansion logs 19.5 million safe man-hours

Work on the Dewa project in Jebel Ali, for which Siemens and Mott MacDonald are employed, is 98% complete

The expansion of Dewa's Jebel Ali M-Station in Dubai is 98% complete.
© Wam
The expansion of Dewa's Jebel Ali M-Station in Dubai is 98% complete.

Dubai’s expansion of the Jebel Ali M-Station power and desalination plant is 98% complete, with more than 19.5 million safe man-hours completed for the scheme.

Mott MacDonald is engaged as project consultant for M-Station, which has a total construction and expansion cost of $3.1bn (AED11.5bn). This $3bn figure also includes the cost of smart devices and heavy-duty tech systems installed in the project.

Siemens is working on the Dubai Electricity and Water Authority (Dewa) project, which currently has a capacity of 2,185 megawatts (MW) of power and 140 million imperial gallons (MIGD) of water per day.

The expansion of M-Station includes the addition of 700 MW capacity through new power generation units, as well as two dual-fuel gas turbine generators, two heat-recovery steam boilers, and a steam turbine. The turbine’s fuel efficiency is pegged at 90%, and M-Station’s overall thermal efficiency is expected to reach 85.8% from 82.4%.

Dewa said that, upon completion, M-Station’s total capacity will be 2,885MW, with the plant also becoming one of the world’s most thermally efficient facilities of its kind.

M-Station was built at a cost of $2.7bn (AED10.15bn), with another $1.7bn (AED6.2bn) later invested to generate its current production capacity of 2,185 MW. The power generation process is implemented using six Siemens F-model gas turbines that each have a capacity of 255 MW; six waste-heat recovery boilers; and three steam turbines with the capacity of 218 MW apiece.

Meanwhile, M-Station’s water infrastructure, worth $1bn (AED3.95bn), includes eight desalination units that deploy multi-stage flash distillation technology, each with a capacity of 17.5 MIGD. Two dual fuel-fired auxiliary boilers, each with a capacity of 390 tonnes per hour, are also included in the water desalination system, as are 16 fuel-oil storage tanks with individual capacity of 20,000m3.

Dewa’s total production capacity currently equals 10,927 MW of electricity and 470 MIGD, according to a report by the UAE state news agency, Wam.

These details were revealed during a tour of the M-Station site recently conducted by Dewa’s managing director and chief executive officer, Saeed Mohammed Al Tayer. Accompanying him on the tour were other senior Dewa officials, such as executive vice president of generation, Nasser Lootah; vice president for projects, Mansoor Al Suwaidi; vice president of commissioning, Dr Maan Alafeefi; and project manager Masoud Kamali.  

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Construction Week - Issue 754
Nov 23, 2019