Thermal power plants unable to run at full capacity: Pepco
ISLAMABAD (June 14 2008): The Pakistan Electric Power Company (Pepco) has conveyed to the federal government that Kot Adu (Kapco) and Guddu thermal power plants can not be operated on full utilisation until the required quantity of fuel is made available to them, sources in Petroleum Ministry told Business Recorder.
They said total present generation capacity of Genco-III power plants is 1530 mw, which they are not contributing to their role in Pepco's generation system due to lack of fuel.
With regard to TPS Muzaffargarh, sources said that average daily gas requirement of the 130 mw plant was 200 mmcfd but SNGPL was supplying 150 mmcfd gas round the year to the power station in 2003-04 which has decreased gradually and at present only 15 mmcfd gas was being supplied by the gas company.
All the 6 units of the power station could operate on dual fuel ie gas and furnace oil but due to very nominal gas supplies by SNGPL coupled with financial constraints faced by Pepco, furnace oil stocks at the power station were low and at times were almost completely depleted.
Presently, 2 out of 6 units were under forced shutdown due to non-availability of fuel. Maximum generation from the power station remained only 675 mw and the management was left with 9000 metric tons furnace oil stocks as of June, 2008.
Average daily furnace oil requirement of the power station is 6000 metric tons. In the present circumstances, neither of the oil marketing companies (OMCs) could supply the requisite quantities to the power station nor can the said quantities be handled (decanted) due to limitations of fuel decantation station, sources added.
For complete restoration of power generation capacity of the power station, 100 mmcfd gas would therefore essentially be required, sources said. They said that machines of GTPS Faisalabad were gas-based. Hence, furnace oil could be used. Units of SPS Faisalabad are on dual fuel ie gas and furnace oil. As per Gas Sale Agreement (GSA), gas allocation for GTPS and SFS Faisalabad was 26 mmcfd and 5 mmcfd respectively.
However, SNGPL was not delivering the committed volumes. Machines of GTPS Faisalabad having generation capacity of 210 MW remain mostly idle due to non-supply of gas by SNGPL. On the other hand, machines of SPS Faisalabad were operated on costlier furnace oil, burning of which also results in increased maintenance of boilers and allied equipment.
They said that 60 mmcfd gas for GTPS Faisalabad machines and 25 mmcfd gas for mixed FO and gas firing in the boilers of SPS Faisalabad machines was necessarily required so that the power station may operate at maximum load. Total gas requirement of the power station is 85 mmcfd.
They said that present generation capacity of NGPS Multan was 60 MW. The machines of NGPS Multan could be operated on dual fuel. As per terms and conditions of the GSA, SNGPL has to supply 17 mmcfd gas to the power plant. However, 2 -3 mmcfd average gas was being supplied by the gas company in the current fiscal year.
Resultantly, machines were operated on expensive furnace oil which has also increased maintenance of the power plant. The power plant needs to be supplied average quantity of 10 mmcfd gas.
Four machines of GTPS Shahdara are open cycle gas turbines with present generation capacity of 30 mw. These units are gas based. Due to non-availability of gas by SNGPL, the power plant has mostly remained inoperative in the current fiscal year. At least 5 mmcfd gas is required to keep the machines in generation circuit.
For Kapco complex, costly imported LSFO was being consumed for generation. Besides, two units--3 and 4--can run only on gas or alternatively on HSD which is very expensive fuel. Hence, SNGPL should use its best endeavours to supply maximum gas to the power complex. However, minimum 70 mmcfd is essentially required for Kapco. Sources said that the gas company has been asked to provide gas to the power generating units on priority basis.
Business Recorder [Pakistan's First Financial Daily]