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How Economic Value Management can be Applied to Power Plant Management
 

How Economic Value Management can be Applied to Power Plant Management

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15-19 October 2012 at Bali Nusa Dua Convention Center (BNDCC)

15-19 October 2012 at Bali Nusa Dua Convention Center (BNDCC)

Nusa Dua - Bali, Indonesia19th Conference of the Electric Power Supply Industry (CEPSI 2012)
co-author: W,Tirakhan

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  • “เพิ่มผลผลิต” ดูในกรอบของการเพิ่มSpinning reserve  เพิ่มความมั่นคงของระบบ แต่ยังไม่ได้มองไปถึงว่าส่วนที่เพิ่มนั้นจะถึงปลายทาง ขายจริงได้หรือไม่ ขายได้ต้องเดินโรงนั้น ช่วงความต้องการเพิ่ม อาจเรียกเดินโรงไฟฟ้า IPPแต่เพื่อให้มองเห็นตัวเลขการเพิ่มมูลค่า จึงคำนวณแบบคาดการณ์ โดย 2.56 Baht/kWh (ของจริงคือ…..)c

How Economic Value Management can be Applied to Power Plant Management How Economic Value Management can be Applied to Power Plant Management Presentation Transcript

  • October 19th, 2012 ECONOMICSParichart SuttiprasitElectricity Generating Authority of Thailand (EGAT)CEPSI 2012 PERFORMANCE EFFECTIVE ASSET MANAGEMENT Leading the way to Operational Excellence 2011
  • Introduction 2
  • Leading the way to Operational Excellence 2011 3
  • Fuel Cost(THB kWh) Replacement Energy Gain Merit Order Must Run Must Take Marginal Plant Electricity Demand Coal Natural Gas Oil A B C D E F G H I J K L M N O P Q R S T U V W Power Plants 4
  • Duration Correct Extend? Seal ! OEM Supervisor EGATHow much are we losing? Leading the way to Operational Excellence 2011 5
  • Outlines Planned Outage: off- gridOperation: on- grid Conclusion
  • SchedulingExecutingFunction Test Leading the way to Operational Excellence 2011
  • Scheduling Unit: Baht /day 8
  • Unit:Scheduling Baht /day Year 2012 AA-C20 11.18 Mar April May June 8.18 11.18 11.85 6.75 9
  • Unit:Scheduling Baht /day Year 2012 AA-C20 11.18 Leading the way to Operational Excellence 2011 10
  • Performance Planning  Decrease of EfficiencyHeat Rate (kJ/kWh) 10300 - 10285.72 10250 - 10216.37 10200 - Current 19 199 199 200 200 200 2008 95 6 9 1 3 Operation Time (year) 2010 6 Assumption: Heat rate has been constantly increased since 1995. Source: EGAT production efficiency division, 2006
  • Decision Making Before Outage “If main turbine do not overhaul (not remove rotor)” Availability Payment + Revenues Executing Energy Payment Critical Path Management Replacement EP EP Entire Asset Fuel Cost - Energy Cost $3.3 M USD - Cost Performance O&M Cost + Lost - Capital Maintenance $2.3 M USD - Charge CostReference: $0.5 M USDParichart, S. (2008) Outage optimization of steam turbine and auxiliaries. 12Proceedings of 17th Conference of the Electric Power Supply Industry (CEPSI 2008), October. Macao.
  • Unit: Executing Baht /day Year 2012 AA-C20 11.18 Mar April May JuneDuration 8.18 11.18 11.85 6.75Extend? Critical Path Management 13
  • SchedulingExecutingFunction Test Leading the way to Operational Excellence 2011
  • Economic Profit (EP) Driver TreeStrategic Improvement Plan (SIP) Leading the way to Operational Excellence 2011 15
  • EP Driver Tree & SIPs EE-C2 CWPs, CT efficiency Increase AA-T1-4 Fuel Optimize BB-C3 Exhaust Gas Temp. Increase Station Service Reduction : AA-T2-4, BB-C3-4 Adjust Fan Blade Angle CC-T1-10 Pump Speed Reduce DD-H1-5 Mini Hydro Turbine Install 14
  • Strategic Improvement PlansYear 2012 Forecasted economic profit (rE Fuel ReductionEconomic kWh increment Profit PPA 15
  • 358.4 WN-C3 TIAC system BPK-T2-4, BPK-C3-4 MM-T4- 0.6 13 Station Service 2.3 SNR-1-5 Mini. Hydro TB 0.71 Economic kWh increment Profit 408 45.3 * Outside CAH PPA 16Remark: *estimate only generation from Hydro Power Plants according to Internal Power Purchase Agreement
  • 399 * SB-C2 CWPs, CT 4.4 WN-C3 TIAC system BPK-T2-4, BPK-C3-4 MM-T4- N/A BPK-T1-4 Fuel •Min. Gen., 59.4 * 13 Station Service SNR-1-5 Mini. Hydro TB 1.7 * Reduction •Fuel Optimize (Mixed Fire) 3.26 BPK-C3 0.5 Exhaust Gas Temp. Increase 4.0 534 Economic 61.9 * Profit SB-C3 Online Filter Change This economic profit is one part of the whole Fuel Gain of Generation deputy.Remark: PPA* present the fuel savings from both individual Power Plants and Replacement Energy Gain of all power plants 17
  • Strategic Improvement PlansYear 2012 Forecasted economic profit (rE Fuel Reduction 534Economic kWh increment Profit 408 Total Economic Profit = 942 M THB PPA 18
  • Conclusion1. Dividing 2 groups: PO and OperationKey functions are changed depending on duration Replacement Energy2. PO duration ; Gain/LossKey function : Scheduling->Executing->Function Test3.Operation duration; Key function is Efficiency & Productivity Critical Equipment EP driver tree and SIPs Series Type are applied Leading the way to Operational Excellence 2011 19
  • • Parichart Suttiprasit• parichart.su@egat.co.th• Electricity Generating Authority of Thailand (EGAT) Leading the way to Operational Excellence 2011