SPD method - Electricity Authority · 2020. 10. 12. · SPD charge (by trade period) ... Future...
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Transcript of SPD method - Electricity Authority · 2020. 10. 12. · SPD charge (by trade period) ... Future...
Calculation details
Surplus
Demand > 0: LCS = (VoLL-Price) x Cleared Demand
Demand < 0: GS = -Price x Cleared Demand
Scheduled generation (GIP): GS = (Price x ClearedGeneration) -
ΣiClearedGenerationi x OfferPricei
Benefit
Demand > 0: Max[0, LCSSolve1 – LCSSolve2]
Demand < 0 and GIP: Max[0, GSSolve1 – GSSolve2]
SPD charge (by trade period)
SPDChargeRatio =
Min[1, TRR/ΣgBenefitg]
SPDChargeg = SPDChargeRatio x Benefitg
LCS = Load customer surplus GS = Generation surplus GIP = Grid injection point TRR = Transmission revenue requirement