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How Economic Value Management can be Applied to Power Plant Management
The document discusses the Electricity Generating Authority of Thailand's (EGAT) approach to achieving operational excellence through effective asset management and performance planning. It provides insights into fuel cost management, scheduling, and the strategic improvement plans aimed at enhancing economic profit and efficiency. Key data includes forecasts for economic profit related to fuel reduction and operational changes necessary to optimize performance.
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How Economic Value Management can be Applied to Power Plant Management
- 1. October 19th, 2012 ECONOMICS Parichart Suttiprasit Electricity Generating Authority of Thailand (EGAT) CEPSI 2012 PERFORMANCE EFFECTIVE ASSET MANAGEMENT Leading the way to Operational Excellence 2011
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- 3. Leading the wayto Operational Excellence 2011 3
- 4. 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
- 5. Duration Correct Extend? Seal ! OEM Supervisor EGAT How much are we losing? Leading the way to Operational Excellence 2011 5
- 6. Outlines Planned Outage: off- grid Operation: on- grid Conclusion
- 7. Scheduling Executing Function Test Leading the way to Operational Excellence 2011
- 8. Scheduling Unit: Baht /day 8
- 9. Unit: Scheduling Baht /day Year 2012 AA-C20 11.18 Mar April May June 8.18 11.18 11.85 6.75 9
- 10. Unit: Scheduling Baht /day Year 2012 AA-C20 11.18 Leading the way to Operational Excellence 2011 10
- 11. Performance Planning Decrease of Efficiency Heat 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
- 12. 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 Cost Reference: $0.5 M USD Parichart, S. (2008) Outage optimization of steam turbine and auxiliaries. 12 Proceedings of 17th Conference of the Electric Power Supply Industry (CEPSI 2008), October. Macao.
- 13. Unit: Executing Baht /day Year 2012 AA-C20 11.18 Mar April May June Duration 8.18 11.18 11.85 6.75 Extend? Critical Path Management 13
- 14. Scheduling Executing Function Test Leading the way to Operational Excellence 2011
- 15. Economic Profit (EP)Driver Tree Strategic Improvement Plan (SIP) Leading the way to Operational Excellence 2011 15
- 16. 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
- 17. Strategic Improvement Plans Year2012 Forecasted economic profit (rE Fuel Reduction Economic kWh increment Profit PPA 15
- 18. 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 16 Remark: *estimate only generation from Hydro Power Plants according to Internal Power Purchase Agreement
- 19. 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
- 20. Strategic Improvement Plans Year2012 Forecasted economic profit (rE Fuel Reduction 534 Economic kWh increment Profit 408 Total Economic Profit = 942 M THB PPA 18
- 21. Conclusion 1. Dividing 2groups: PO and Operation Key functions are changed depending on duration Replacement Energy 2. PO duration ; Gain/Loss Key function : Scheduling->Executing->Function Test 3.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
- 22. • Parichart Suttiprasit •parichart.su@egat.co.th • Electricity Generating Authority of Thailand (EGAT) Leading the way to Operational Excellence 2011
Editor's Notes
- #19 “เพิ่มผลผลิต” ดูในกรอบของการเพิ่มSpinning reserve เพิ่มความมั่นคงของระบบ แต่ยังไม่ได้มองไปถึงว่าส่วนที่เพิ่มนั้นจะถึงปลายทาง ขายจริงได้หรือไม่ ขายได้ต้องเดินโรงนั้น ช่วงความต้องการเพิ่ม อาจเรียกเดินโรงไฟฟ้า IPPแต่เพื่อให้มองเห็นตัวเลขการเพิ่มมูลค่า จึงคำนวณแบบคาดการณ์ โดย 2.56 Baht/kWh (ของจริงคือ…..)c