Pumped Storage – Al Hattawi Dam, Dubai

The Dubai Electricity and Water Authority (DEWA) will build the  first hydroelectric power station in the GCC.  DEWA will build a 250-MW pumped storage facility powered by solar PV.

HE Saeed Mohammed Al Tayer, MD and CEO of DEWA, announced the project.  HH Sheikh Mohammed bin Rashid Al Maktoum, Vice President and Prime Minister of the UAE and Ruler of Dubai was also present.  

In November 2015, His Highness announced the Dubai Clean Energy Strategy 2050.  The intent of that plan is to provide 75% of Dubai’s total power output from clean energy. The Al Hattawi Dam pumped storage project is a major project to diversify the energy mix of Dubai.

General Design Features

The power station will work by making use of two reservoirs at the Al Hattawi Dam.

  • This dam’s reservoir is 400 meters above sea level and its capacity is 1,716 million gallons.
  • DEWA will build the storage reservoir 700 meters above sea level.
  • The horizontal distance between the two reservoirs will be 3-4 kilometers with 300 metres difference in height.
  • DEWA will use solar energy during off-peak hours to pump water from the lower reservoir.
  • The speed of the waterfall from the upper reservoir will generate electricity for the DEWA grid.
  • The efficiency of the power station will 90%
  • The storage facility will be able to respond to power demand within 90 seconds.
  • The estimated cost of the project is $525MM.
  • The project is expected to be operational in 5 years.
  • The expected life of the project will be 60 years and could be as much as 80 years.

Other Benefits

The new facility is one of several new projects in the Hatta Comprehensive Development Plan.  DEWA says the project will create more than 2,000 jobs during the implementation phase.  Also, more than 200 permanent technical and administrative jobs will be created to oversee plant O&M.  The region will also see 300 jobs created for the Visitor and Tourist Centre, outdoor activities, and the accommodations and visiting facilities associated with the project.

Other benefits of the project beyond electricity supply include irrigation, flood control and drinking water supplies.

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