REHABILITATION OF MANGLA
HYDEL POWER STATION|
Mangla Dam Project completed
in1967 is located on River Jhelum at about 120 Km from Capital Islamabad. The
Power House was completed in four stages, the initial phase comprising of four
units of 100 MW each was completed in 1967-1969. The first extension of Units
5-6 (2x100 MW) was completed in 1974 while second extension comprising units 7-8
(2x100 MW) was completed in 1981. The project attained its maximum capacity of
1000MW with the final extension of units 9&10 (2x100 MW) in 1993-94. During high
reservoir level period, Mangla is able to generate 1150 MW against the rated
capacity of 1000MW due to permissible over loading of 15%.
Since the reservoir capacity had
reduced to 4.674 MAF from 5.88 MAF due to sediment deposition, raising of Mangla
Dam by 30 ft. was taken in hand which has now completed. The Project will
provide additional water storage of 2.88 MAF, increase water head by 30 ft and
power generation of 644 GWh per annum and further flood alleviation.
In the light of increase in
aforesaid parameters, WAPDA intends to carry out a Feasibility Study for
Up-gradation & Refurbishment of the old Generating Units and Allied Equipment of
Mangla Power Station to ensure their optimized, reliable and sustainable
operation in the Post Raised Mangla Dam Scenario. Electrical & Mechanical
Equipment of the existing units after having spent 30 years or more of their
useful lives have deteriorated due to aging effects resulting in reduction of
efficiency and dependability.
The intended Feasibility study
is aimed to assess the present operating conditions of existing Civil Structures
& Plant Machinery, Study of various options of Refurbishment of Electrical &
Mechanical Equipment and to recommend the most viable option for Up-gradation /
Refurbishment of Power House Generating Units for achieving optimum benefits as
a result of enhanced water availability ad increased head after Mangla Dam
Total cost of the project is
roughly estimated to be US $ 300 to 500 Million. However, better Cost Estimation
of the project will be available after completion of the above study. USAID and
JICA have shown interest to finance the subject Project.
i) Seven Consulting
Firms / JVs were short-listed on the basis of their EOIs, invited by WAPDA for
the above Task. Requested for Proposals (RFP) were issued to short-listed
Consulting Firms / JVs on 05-12-2009 with last date of submission as 17-02-2010.
Six Consulting Firms/JVs submitted their Proposals within due date. Initial
Technical Evaluation of the proposals were carried out and sent to Standing
Committee. Authority considered the final evaluation report of the Standing
Committee in its meeting on 10th November, 2010 and accorded approval for the
technical ranking. M/s MWH - NESPAK JV are the top ranked consulting firm
securing 87.33% marks.
ii) Financial Proposal of M/s
MWH - NESPAK JV was opened on 06-12-2010. The total offered read out price of
the firm is Rs. 199.4 Million. Evaluation of the Financial Proposal was carried
out by the Standing Committee and sent to G.M (CCC) for Negotiations with the
Consultants on various deviations regarding Man-months, Standard
Conditions, Cost etc.
iii) Negotiations with
MWH-NESPAK JV have been started on 06.01.2011. After settlement of all the
issues, Final Evaluation will be submitted by GM (CCC) for approval of