CHAIRMAN CLARIFIES KESC'S POSITION
KESC says its customers should not "expect (a) miracle within months but stay with fortitude and patience..."
By ENGR. SYED TANZEEM HUSSAIN NAQVI1.3 million K.E.S.C consumer may be facing a power crisis in the shape of load shedding or power failure and, of-course, KESC is obliged to a place crystal clear position before its valued customers as elucidated hereunder:
Jul 06 - 12, 1996
In any power supply system, there are four sectors which independently and collectively need renovation/or augmentation before a saturating point crops up. These four vital sectors are as under:
Power generation capacity
The maximum firm generating capacity of KESC's existing power stations is 1250 MW whereas the power demand has touched a figure of 1487 MW (15th April, 1996) thereby creating a shortfall of almost 250 MW. This shortfall can either be met with either by importing power from WAPDA/private generating units or KESC is forced to carry out load shedding till such time the generating capacity is improved.
As a matter of fact, KESC, in 1988-89 had submitted a complete Generating Plan covering future load demand and shortfall of power and requested the Government of Pakistan for immediate installation of Bin Qasim Unit No.6 and 2x210 MW units at West Wharf (City centre). It is also a fact and pitty that both these generation schemes could not be started and implemented before 1993 and the time, that was lost during the years from 1989 to 1993, was a 'Crucial' time. Had these generation schemes started in 1989-90, these could have been completed by the year 1992-93 (although provision of funds and necessary approval was available), then the present agony of load shedding carried out during the years 1994 to 1996 could have been averted.
Under the Prime Minister's Karachi Package, 210 MW capacity Bin Qasim Unit 6 at a cost of Rs. 5000 million is at final stages of completion and by the Grace of God, it would start Trial Operation by July-August, 1996. Besides this, 300 to 600 MW Hubco Power will be available to KESC/WAPDA resulting in improvement of generating capacity of KESC/WAPDA by the end of year 1996. A task force, under the Chairmanship of Mr. Shahid Hassan Khan was constituted by the Honourable Prime Minister of Pakistan to formulate Energy Policy which has resulted in private generating units added to WAPDA/KESC system. Accordingly, Gul Ahmed, Tri-Star, Wak Orient and Saba Shipyard have achieved Financial Close and is expected that 1023 MW capacity will be available upto the year 1997 which will be sufficient upto the year 2000.
High voltage transmission lines
The work of rehabilitation/laying of new 220 KV/132 KV High Voltage Transmission Lines under the Prime Minister's Karachi Package of 5th ADB Project Loan, amounting to US $ 372 Million was started in the year 1994. By the Grace of Allah, 30 k.m 220 KV Transmission Line from Korangi Thermal Power Station to Queens Road costing Rs. 470 million has since been completed giving stability/relief in the South-West region of Karachi. Similarly, 15 numbers 132 kv lines measuring 104 k.m have also been completely energised. These new/rehabilitated transmission lines have, not only, resulted in stable supply position with regard to transmission circuits but has also improved energy profile specially of the city centre and south-west part of the Karachi city. People of Karachi had witnessed many failures of transmission lines in Korangi, Queens Road and Defence areas during the summer of 1994-95 because of the fact that these transmission lines were very old and deteriorated. Re-inforcement of new lines of these areas have played a vital role in stabilizing the supply. The remaining rehabilitation work of transmission lines and completion of 220 KV RING around the whole city of Karachi is being established under 6th Power ADB Project Loan. Tenders were floated, evaluation carried out and at present the approval of ADB is awaited and by the grace of God, the remaining High Voltage Transmission Line improvement work will be started in the year 1996 and accomplished in the year 1998.
220 KV RING around the whole city of Karachi will not only stabilize the power flow of various grid stations but would also ensure prompt backfeeding of power to various grid stations in case of failure of any transmission line.
High voltage grid stations
There are 38 Highvoltage Grid Stations out of which 31 were either fully loaded or over-loaded during the year 1994 thus, resulting in power failure from the Grid Stations either due to over loading or due to load shedding being carried out at the Grid Stations to save power transformers from burning in over-loading condition. Special Crash Programme, under the directions of the Honourable Prime Minister of Pakistan, under Karachi Package was started from September 1994 and completed in January 1995. Under this Crash Programme new Power Transformers were added at Korangi West Grid Station. Valika Grid Station, Liaquatabad Grid Station, Export Processing Zone Grid Station, Civil Aviation Grid Station, Korangi Town, Old Town, RECP and Lyari Grid Stations at a cost of Rs. 150 million. With the installation and augmentation of above transformers, the supply position of Defence, Korangi, Old Town, SITE, Landhi, North Nazimabad, Shah Faisal Colony etc. has improved.
Augmentation of 24 numbers 40 MVA power transformers is being carried out at various grid stations under Prime Minister's Karachi Package of 5th ADB Project loan amounting to US $ 372 million. More than 50% augmentation work of Grid Stations has been completed and KESC has installed new transformers at Civil Aviation, Civic Centre, Defence, Dhabeji, Hub Chowki, Landhi (2 Nos) KEPZ, Clifton and the balance transformer will INSHALLAH be installed by the end of December 1996. Further more new grid stations at SITE II, Surjani Town, Garden East, Malir, Queens Road etc. are under construction. By the Grace of ALLAH all these grids will be completed by December 1997-98. It will be appreciated that almost 220 MVA capacity was added under Crash Programme and 720 MVA capacity is/will be added under 5th ADB Development Plan which will be sufficient for next 10 to 15 years.
It will be appreciated that in the year 1994 there were 477 11kv cable failures. KESC has therefore, started a major rehabilitation work of Distribution System under Prime Minister's Karachi Package through EXIM Bank loan of US $ 100 million to improve distribution position, voltage profile and reduction of losses. The programme was started in the month of October, 1995. Under this Crash Programme 66 numbers 11 KV feeders, 42 numbers HT link feeders and 109 LT cable feeders and 48 PMTs were installed at a cost of Rs. 674 million to stabilize the deteriorated Distribution System. Under this rehabilitation/extension plan of EXIM Bank loan, following works are being carried out:
(a) 1160 Nos.11kv Distribution Transformers.
(b) 4,75,000 meters of HT Cables 300 mm will be laid for new feeders as well as re-inforcement.
(c) 87,50,000 meters of 3/0 and 2 SWG conductor will be renovated.
(d) 220 numbers 11 kv ring-main units will be installed.
(e) 250 Nos. 11 kv sub-stations will be energised.
(f) 1260 LT cable circuits will be laid.
(g) 250 load breakers will be installed.
(h) 180 Nos. Indoor Switch Boards will be erected.
All the above material will be installed under the Renovation Programme and these works are expected to be completed by the end of year 1996.
From the above facts, it is crystal clear that KESC, under Prime Minister's Karachi Package has not only augmented/renovated High-voltage transmission lines, Grid Stations and Distribution System but has also fulfilled a long outstanding promise of rehabilitating the old and deteriorated system, to avoid major breakdowns in the city.
Our valued customers will also appreciate that there are more than 600 11 kv feeders and more than 6000 Pole Mounted Transformers installed in the city. If we consider 1% outage during the hot season, the break down would affect 20 to 30% area of Karachi. Similarly burning of PMTs at certain place does not mean major breakdown or system failure. It is called a routine failure which is possible during the hot summer spell or rainy season. Major renovation work is being carried out on distribution system and after the completion of the 5th ADB and 6th ADB Development Project by the year 1996 & 1998 the total transmission, distribution and grid stations system will be renovated, to cope with the additional load requirement of the system by the year 2000 onwards.
The Development Works being carried out under various Power Sectors are summarised as under:
With the commissioning of 210 MW Bin Qasim Unit 6 from July 1996 and private generation capacity likely to be added by the year 1997 the Generation capacity will be increased from July 1996. This added generating capacity will not only cover the shortfall of power but would also be sufficient to cater to the additional power demand upto the year 2000.
Renovation and installation of new Highvoltage Transmission Lines, already completed under 5th ADB project, has not only stabilized the voltage problem in the city but has also saved the System failure, which used to occur during the years 1994-95. Further more, with the installation of 220 KV Transmission lines RING around the Karachi City during the year 1996-98 will further stabilize transmission capacity of KESC which would be sufficient to cater to the needs upto 10 to 15 years onwards.
Augmentation of 24 numbers Grid Stations and installation of new Power Transformers at various Grid Stations of the city under Crash Programme, under 5th ADB Development Project, has also improved the loading condition of the Power Transformers at all the places of the city. It will be recalled that in the year 1994-95, as many as 31 Grid Stations (out of 38 Grid Stations), were running over loaded and thus creating the voltage problem. Now, under Crash Programme, these Grid Stations have either been upgraded or NEW TRANSFORMERS ADDED to cater to the over loading problem and also for the future load demand.
Under Crash Programme, executed under Prime Minister's Karachi Package, Rs. 970 million have already been spent to rehabilitate new feeders as well as Distribution System which has brought stability in the Distribution System throughout the city. It will also be recalled that in the year 1994 almost 350 Nos. 11 kv feeders out of 450 numbers feeders were over-loaded, resulting in outage/breakdowns for days together. Now by the Grace of God, we have already added more than 100 numbers 11 kv feeders and another 50/100 feeders are being installed during the current year 1996 to rehabilitate all the over loaded feeders which will be sufficient to cater to the load demand for next five/six years.
One will appreciate that KESC's System was running over-loaded even in the year 1988-89 and No Major Renovation/Augmentation work was carried out during the years 1989-1993. It is just obvious that the over loaded system which was neglected for years together as indicated above, cannot be rehabilitated in a year. Despite liquidity problems, KESC, by the Grace of God, has not only completed 50/60% T&D Renovation Work, but new Transmission Lines and feeders have also been installed to save the Karachi City from System Breakdowns.
It may be relevant to mention that Rehabilitation work of old deteriorated system is not only a time consuming factor but it also needs Local Currency Requirement. Therefore, KESC will beseech its valued customers not to expect miracle within months but stay with fortitude and patience by extending their patting hands for the Development works of T&D System of which phase I is likely to be completed by the year 1996 and phase II by the year 1998.