ISLAMABAD -  The government owned generation companies lost 15 billion units from 2014-16 over the allowed NEPRA losses.

The data provided by GENCOs presents a poor state of affairs at GENCO's power stations resulting from equipment deterioration, lack of scheduled & preventive maintenance, insufficient technical expertise and poor management. Hence, there is a need to improve the performance of GENCOs since they can contribute a significant share to the total energy requirements of the country, said performance evaluation report of public sector Gencos during year 2014-15 and 2015-16.

The report said that the GENCOs caused losses of 15159 million units because of excess auxiliary power, staying in standby mode and planned and unplanned outages.

The report highlights the performance of public sector GENCOs on the basis of parameters namely, Auxiliary Consumption, Standby Mode, Planned/Unplanned Outages, Availability Factor, Net Capacity Factor, Net Output Factor and Energy Availability Factor.

The report said that the data provided by generation companies reflects that during the years 2014-15 and 2015-16, all GENCOs consumed excess auxiliary power over the allowed limit with an energy loss of around 668 Mln.kWh during service mode.

It is pertinent to mention here that TPS Muzaffargarh (GENCO-III) contributed almost half of this loss.

The data provided by GENCOs shows that certain gas based power stations such as GTPS Kotri, GTPS Faisalabad and SPS Faisalabad remained on standby mode for most part during the years 2014-15 and 2015-16 thereby squandering the potential to generate significant amount of economically efficient energy. On top of that, the units/machines of GENCO-I, II &III have drawn around 382 Mln.kWh energy during standby mode under the head of auxiliary power consumption.

Almost 82% of the total energy consumption under standby mode was contributed by GTPS Faisalabad (GENCO-III).

Regarding Planned and Unplanned Outages, the report said that the data submitted by GENCOs for the period under review indicates that few units/machines of TPS Jamshoro (GENCO-I), TPS Guddu & Guddu 747 CCPP (GENCO-II) and TPS Muzaffargarh, GTPS Faisalabad, SPS Faisalabad& CCPP Nandipur (GENCO-III) have violated the allowed limit of total outages (planned/unplanned) as per their respective Power Purchase Agreements (PPAs) signed with the NTDC. Had this limit not been exceeded by aforementioned machines and had they remained in operation during that period, a huge amount of energy i.e. around 14109 Mln. kWh could have been produced by them.

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Regarding the Availability Factor (AF), the report maintained that the data submitted by GENCOs shows that, on average, the AF for TPS Guddu (GENCO-II) remained quite low during the period under review i.e. only 43% in 2014-15 and 45% in 2015-16, vis-à-vis, guaranteed availability of 80% as per PPA.

Similarly, Combined Cycle Power Plants such as Guddu 747 and Nandipur could not achieve the guaranteed availability as specified in their respective PPAs due to huge number of planned and unplanned outages. The AF for Nandipur power plant remained around 71% in 2015-16 against the guaranteed availability of 82%, whereas, the AF for Guddu 747 remained around 65% against the guaranteed availability of 80%. Lakhra Power Station (GENCO-IV) showed the worst results in this regard as its AF remained at mere 26% in 2014-15 and 25% in 2015-16.

It is also pertinent to mention here that although, the availability factor of GTPS Kotri, GTPS Faisalabad and SPS Faisalabad seems within the acceptable range, but most of the time, these power stations remained on standby mode due to which their potential was not utilized.

About the Net Capacity Factor (NCF) the report said that while reviewing the results of NCF, it has been observed that, on an average, the NCF for TPS Guddu, GTPS Faisalabad, SPS Faisalabad and Lakhra Power Station remained quite low i.e. 2% - 22% during the FY 2014-15 and 2015-16, implying that most of the time, these power stations remained either on standby mode or planned/unplanned outage mode during the subject period.

Regarding Net Output Factor (NOF), the report said that the data provided by GENCOs shows that, on an average, the NOF for TPS Guddu remained very low i.e. only 36% during the FY 2015-16. The reason of this worst productivity is the non-contribution of energy by Unit # 2, 4, 9 and 13, having a combined net capacity of 460 MW, as these units remained on unplanned outage mode during the entire FY 2015-16. This clearly speaks of poor management and lack of technical expertise on GENCO-II's part.

About Energy Availability Factor (EAF) the report said that it has been noted that the EAF is not equal to the AF in case of TPS Jamshoro, TPS Guddu, TPS Muzaffargarh and SPS Faisalabad, which shows that their net capacity was temporarily reduced due to equivalent planned & unplanned de-ratings during the reported period.

It is evident from the data that the per unit rate of RFO-based power plants, such as TPS Jamshoro and TPS Muzaffargarh, considerably reduced in 2015-16 as compared to 2014-15. Despite this significant decline in per unit rate, the average utilization factor of these power plants remained low during 2015-16, i.e. 57% for TPS Jamshoro and 48% for TPS Muzaffargarh.

Similarly, the per unit rate of gas-based power plants, such as TPS Guddu and GTPS Faisalabad remained in the range of 5 to 7 Rs/kWh but the average utilization factor of these power stations also remained very low during 2015-16, i.e. only 11% for TPS Guddu and 15% for GTPS Faisalabad.

This indicates that the benefits of reduction in fuel prices were not utilized.

 

 

Fawad Yousafzai