17. Real-time Dispatch (D-0) A Day-ahead M arket ( D-1 ) Daily bid& offer made by standing bid procedure 5 a.m 10a.m Daily bid Submission Gate Closure 16p.m Pumping bid Gate Closure 15p.m SMP Disclosure Trading hour 20p.m 18p.m System Operation Schedule Disclosure 19p.m Bid change Closure 1 hour before trading hour, faults, outages
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23. Gen 1 (3.0W) Gen 2 (3.1W) Gen 3 (3.2W) Gen 4 (3.3W) Gen 5 (3.4W) Gen 6 (40W) Gen 7 (41W) Gen 8 (42W) Gen 9 (43W) Gen 11 (80W) Gen 12 (81W) Gen 13 (82W) Gen 14 (150W) Gen 15 (200W) <Total Cap> biding Gen 10 (44W) Gen 1 (3.0 원 ) Gen 2 (3.1 원 ) Gen 3 (3.2 원 ) Gen 4 (3.3 원 ) Gen 5 (3.4 원 ) Gen 6 (40 원 ) Gen 7 (41 원 ) Gen 8 (42 원 ) Gen 9 (43 원 ) Gen 11 (80 원 ) Gen 12 (81 원 ) Gen 13 (82 원 ) Gen 15 (200 원 ) Gen 1 (3.0 원 ) Gen 2 (3.1 원 ) Gen 3 (3.2 원 ) Gen 4 (3.3 원 ) Gen 5 (3.4 원 ) Gen 6 (40 원 ) Gen 7 (41 원 ) Gen 8 (42 원 ) Gen 9 (43 원 ) Gen 11 (80 원 ) Gen 12 (81 원 ) Gen 13 (82 원 ) Gen 15 (200 원 ) Gen 1 (3.0 원 ) Gen 2 (3.1 원 ) Gen 3 (3.2 원 ) Gen 4 (3.3 원 ) Gen 5 (3.4 원 ) Gen 6 (40 원 ) Gen 7 (41 원 ) Gen 8 (42 원 ) Gen 9 (43 원 ) Gen 11 (80 원 ) Gen 12 (81 원 ) Gen 13 (82 원 ) Gen 15 (200 원 ) 4h 15h SMP (Won/kWh) hour Forecasted Load ………… <Biding Cap> Pricing Nuclear Coal LNG Etc New addition(G/T) CP based on Marginal plan t SMP Based on Marginal cost Forecasted Load
24. ※ How do we set the market price (SMP) ?(2) (Time) (Unit : Won/kWh ) ( Unit:10MW ) Low High 01:00 04:00 09:00 12:00 15:00 19:00 21:00 24:00 Power demand(10MW) 3,730 3,320 4,770 5,500 5,690 5,420 5,420 4,740 Market price(won/kWh) 70.41 32.67 131.89 142.21 142.21 138.4 142.21 118.65 Power demand Market price Available supply capacity
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29. Day-ahead Market · Price(SMP) · Schedule Load Forecast Cost Based Bid Curve Capacity Bid Real Time System Operation A / S Bid Generation Capacity Prices A/S Prices Energy · Scheduled · Metered Capacity A / S Settlements + -
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31. Recent Market Results Ⅲ Trends of Electricity Trading Market Prices & Retail Tariffs Summary of the Market Experiences