PUBLIC UTILITIES COMMISSION OF SRI LANKA HEAT RATES OF THERMAL POWER PLANTS IN SRI LANKA JANUARY 2014 This report consists of information on Heat Rates of thermal power plants in Sri Lanka. CONTENTS LIST OF TABLES .......................................................................................................................... 2 LIST OF FIGURES ........................................................................................................................ 2 1 INTRODUCTION .................................................................................................................. 3 1.1 General ............................................................................................................................. 3 1.2 Approach .......................................................................................................................... 3 2 POWER PLANTS OWNED BY CEB ................................................................................... 5 2.1 Kelanitissa Power Station................................................................................................. 5 2.1.1 GT 02 ........................................................................................................................ 6 2.1.2 GT 03 ............................................................................................................................ 7 2.1.3 GT 04 ........................................................................................................................ 8 2.1.4 GT 05 ........................................................................................................................ 9 2.1.5 Combined Cycle Power Plant ................................................................................. 10 2.2 Sapugaskanda Power Station ......................................................................................... 11 2.2.1 Generator 03............................................................................................................ 11 2.2.2 Generator 07............................................................................................................ 12 2.2.3 Generator 08............................................................................................................ 13 2.2.4 Generator 11............................................................................................................ 14 2.2.5 Generator 12............................................................................................................ 15 2.3 Lakvijaya Power Station ................................................................................................ 17 2.4 Jaffna Power Plant (heavy fuel).................................................................................. 17 3 Heat Rate Tests of Independent Power Producers (IPPs) ..................................................... 18 3.1 Asia Power (Private) Limited ......................................................................................... 18 3.2 Colombo Power (Private) Limited ................................................................................. 19 3.3 Ace Power Embilipitiya (Private) Limited .................................................................... 20 3.4 AES Kelanitissa (Private) Limited ................................................................................. 21 3.5 West Coast Power (Private) Limited .............................................................................. 22 3.6 Heladhanavi Diesel Power Plant .................................................................................... 23 3.7 Northern Power Diesel Power Plant .............................................................................. 23 4 Summary ............................................................................................................................... 24 1 LIST OF TABLES Table 1: Results – GT 02, Kelanitissa ............................................................................................ 6 Table 2: Results – GT 03, Kelanitissa ............................................................................................ 7 Table 3: Results – GT 04, Kelanitissa ............................................................................................ 8 Table 4: Results – GT 05, Kelanitissa ............................................................................................ 9 Table 5: Results – Combined Cycle Power Plant, Kelanitissa ..................................................... 10 Table 6: Results – Generator 03, Sapugaskanda ........................................................................... 11 Table 7: Results – Generator 07, Sapugaskanda ........................................................................... 12 Table 8: Results – Generator 08, Sapugaskanda ........................................................................... 13 Table 9: Results – Generator 11, Sapugaskanda ........................................................................... 14 Table 10: Results – Generator 12, Sapugaskanda ......................................................................... 15 Table 11: Details – Jaffna Power plant ......................................................................................... 17 Table 12: Results – Asia Power .................................................................................................... 18 Table 13: Results – Colombo power ............................................................................................. 19 Table 14: Results – ACE power Embilipitiya............................................................................... 20 Table 15: Results – AES Kelanitissa ............................................................................................ 21 Table 16: Results – West Coast .................................................................................................... 22 Table 17: Summary – CEB Owned Plants .................................................................................... 25 Table 18: Summary - IPPs ............................................................................................................ 25 LIST OF FIGURES Figure 1: Results – GT 02, Kelanitissa ........................................................................................... 6 Figure 2: Results – GT 03, Kelanitissa ........................................................................................... 7 Figure 3: Results – GT 04, Kelanitissa ........................................................................................... 8 Figure 4: Results – GT 05, Kelanitissa ........................................................................................... 9 Figure 5: Results – Combined Cycle Power Plant, Kelanitissa .................................................... 10 Figure 6: Results – Generator 03, Sapugaskanda ......................................................................... 12 Figure 7: Results – Generator 07, Sapugaskanda ......................................................................... 13 Figure 8: Results – Generator 08, Sapugaskanda ......................................................................... 14 Figure 9: Results – Generator 11, Sapugaskanda ......................................................................... 15 Figure 10: Results – Generator 12, Sapugaskanda ....................................................................... 16 Figure 11: Results – AES Kelanitissa ........................................................................................... 21 Figure 12: Results – West Coast ................................................................................................... 22 2 1 INTRODUCTION 1.1 General Conducting Heat Rate tests for thermal power plant in Sri Lanka is a corporate plan activity of Public Utilities Commission of Sri Lanka (PUCSL). Under this activity, all the thermal power plants were studied with a basic Heat Rate test, covering the usual dispatch patterns of them. Thermal Power plants owned by Ceylon Electricity Board (CEB) as well as thermal power plants operating under Independent Power Producers (IPPs) were taken into consideration in this assignment. 1.2 Approach A brief description of the procedure followed during the Heat Rate tests is given below. Meters: Due to the unavailability of calibrated meters with PUCSL, the installed electricity meters and fuel flow meters at the respective premises were used to take readings. Fuel Data: Fuel data (density, calorific value, temperature corrections, etc.) are principle requirements for the calculation of Heat Rates. Some of the IPPs sent fuel samples collected during the Heat Rate test to laboratories at their own cost, to get the required fuel data. Those data were used for the calculation of the Heat Rates of respective IPPs. For other power plants, of which fuel samples had not been sent to laboratories, the fuel data in specifications of Ceylon Petroleum Corporation were used for the calculations of the respective Heat Rates. Stabilization before the Test: All the generators were run for a sufficient period before starting to take readings, allowing the generators to be stabilized. Further for some of the generators part load tests were carried out. At such instances, the generators were allowed to be stabilized at each of the part load stages. 3 Involvement of an Independent agent: All the conducted Heat Rate tests were done under the supervision of the officers