WEG Frequency Inverters & Soft Starters provide high efficiency and energy saving at Algerian desalination plant

The second largest country in Africa after Sudan, Algeria has 33 million inhabitants, and water is extremely scarce. The Sahara desert, the largest in the world, covers more than 90% of the national territory. This means that the area Algeria can set aside for crop cultivation is very limited; consequently, the country has to import more than half of the cereals which it consumes. Unfortunately, this situation is unlikely to improve; in fact estimates show that, in 30-years, the amount of water available per person in the north of Africa will be reduced to 80%, compared to today.

Planning ahead for this eventuality, the government of Algeria is making large investments in seawater desalination projects. Specifically, the construction of three large desalination plants, with a total production capacity of 400 cubic meters of water per day, which will benefit over 2- million people. Two of these plants have already been built and are operational, with the third, the Tlemcem-Honaine plant, presently under construction. Located near the city of Oran, close to the border with Morocco, the Tlemcem-Honaine plant will be one of the largest in the world. It will have a production capacity of 150 thousand cubic meters of water, enough to meet the direct needs of 750,000 people.

WEG’s role in this prestigious project is the supply of 17 soft Starters and 10 frequency inverters for the pumps that will extract water from the Mediterranean Sea at Honaine. The contract for the equipment was secured by WEG Iberia, Spain, through its distributor Flomitec, a company specializing in drives & controls for electric motors. The WEG equipment has been integrated into electrical control panels by Electricidad Tebar, a company that specializes in the assembly of electrical control panels for use in water sector infrastructures. The equipment has already been delivered to the Algerian Energy Company: it will provide soft starting and speed variation for the extraction pumps, which will result in higher efficiency, energy saving and improved reliability.

The construction of Tlemcem-Honaine began in the first semester of 2008, and will be concluded in 2010. The investment in the three plants totals US$ 400m. In an interview with the Algérie Presse Service, the Minister delegate to the State Minister of Interior and Local Communities of Algeria, Daho Ould Kablia,said that the country will invest US$ 19- billion in the water supply sector up to 2014, with the objective of expanding the supply of water per person to 165 liters per day. Today, the figure is 123 liters, which compares unfavorably with that for Brazil, at 300 liters per day.

In addition to desalination plants, further investments will be made in the construction of dams and for sanitation. According to Daho Ould Kablia: “With the new programme, the Algerian government intends to find a balance between the different regions of the country and provide a fair supply and distribution of water and the services related to it.”

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