WAPDA plans upgrading 1000MW Mangla Power Station

Lahore: Water & Power Development Authority WAPDA awarded contract to carry out feasibility study for up-gradation of 1000MW Mangla Power Station for optimal utilization of the country’s hydropower resources.

A Rs 164 million contract, awarded to joint venture of two renowned consulting firms MWH USA & NESPAK Pakistan, aims at assessing existing operating conditions, studying various options for refurbishment of electro-mechanical equipment and recommending most viable option for up-gradation of power station. Study will be completed in October 2011.

Mangla Power Station up-gradation is part of two-pronged strategy being implemented by WAPDA on priority to overcome energy shortage in the country and maximize ratio of low-cost hydel electricity in national grid. WAPDA is not only constructing number of mega projects but also in up-gradation, rehabilitation of its aged power stations, says a press release.

Mangla Dam Project, completed in 1967, is located on river Jhelum about 120km from Islamabad. It’s Power House, comprising 10 generating units of 100MW each was completed in four stages.

Initial phase consisting of 4 units was completed in 1967-69. First extension materialized in 1974 with addition of units 5&6 and second extension of two more units 7&8 in 1981. Power House attained its maximum capacity of 1000MW with final extension of Units 9&10 in 1993-94. During high reservoir level period, Mangla Power House is able to generate 1150MW against rated capacity of 1000MW due to permissible overloading of 15%.

WAPDA planned up-gradation of existing Mangla Power House is due to aging factor of electro-mechanical equipment and more water availability as a result of raised Mangla Dam whose infrastructure was raised by another 30 feet. It made 2.9 million acre feet additional water available in reservoir for irrigation-cum-generation. Based on preliminary studies, generation capacity of Mangla Power Station is likely to increase by about 200MW. The 22MW Jabban Power House is also being rehabilitated at cost of Rs 3.7 billion. Contract for rehabilitation, up-gradation of 243MW Warsak Power House will also be finalized soon.

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