annual report - Tenaga Nasional Berhad

Operations Review – Generation DivisionEnergy Unit SalesThe total energy unit sales forFY2008 were 37,770 GWh,higher than the target value of32,860 GWh by 14.9%. ManjungPower Station contributed thehighest unit sales of 10,562GWh, followed by Paka PowerStation (7,426 GWh) and TuankuJa’afar Power Station (5,546GWh).Graph 11 shows the comparisonof energy sales by power stationsfor FY2007 and FY2008.Thermal EfficiencyGeneration Division’s overall netthermal efficiency was 37.9%, animprovement of 1.7% comparedto the target of 36.2%. Mostof the thermal plants exceededtheir targets. They were achievedmainly due to higher load factorof the plants. Graph 13 showsthe comparison between actualand targeted value of the thermalefficiency for FY2008. Over theyears the thermal efficiency hasimproved from as low as 34.1%in FY2004 to 37.9% in FY2008as indicated in Graph 14.GWh GWhGraph 11:Energy Unit Sales by Station, FY2007/200812,00010,008,0006,0004,0002,00002,1392,4177,4047,4265,5105,5462,1591,9241,9602,39794490011,00410,5622,4593,4201,5892,368805810CB PAKA PD PG GLGR PJ MNJG SGPK KNYR CAMFY’07FY’08Graph 12:Annual Trend of TNB Generation Sales FY2004-FY200842,00040,00038,00036,00034,00032,00039,29234,04638,17635,97337,770Major Projects30,000FY’04 FY’05 FY’06 FY’07 FY’08[ Tenaga Nasional Berhad ] [ Annual Report 2008 ]52The Tuanku Ja’afar PowerStation Rehabilitation Phase 2(PD2) Project is on course fora combined cycle commercialoperation by end of 2008.The individual gas turbine hadsuccessfully reached their baseloads on 17 July and 22 July 2008respectively. The Steam TurbineGenerator Synchronisationmilestone was achieved on5 August 2008. As of August2008, the project is 98%completed. Once commissioned,it will add an additional installedcapacity of 750 MW to theexisting 750 MW PD1 plant.%Graph 13:Thermal Efficiency by Station555045403530252036.138.138.738.848.448.533.740.040.540.726.524.635.034.036.237.9CB PAKA PD PG GLGR PJ MNJG TNBFY’08 TargetFY’08 Actual