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SCED Penalty Factor

Explore the impact of power balance penalties on grid reliability, scarcity pricing, and regulatory dependence. Analyze parameters, offer curves, and transmission constraints. Monitor LMP, SPP, and power balance violations for optimal system management.

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SCED Penalty Factor

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  1. SCED Penalty Factor Resmi Surendran

  2. Transmission Constraint Penalty Values Maximum Shadow Price for • Base Case:  $5,000/MW • Generic constraints :  $5,000/MW • Post Contingency • 345 kV:  $4,500/MW • 138 kV:  $3,500/MW • 69 kV:  $2,800/MW

  3. Power Balance Penalty Curve • equivalent to having extra capacity for meeting power balance violation at • (+/-) 3001 $/MWh for violated MW from 0MW to 9999.999MW, and • (+/-) 5000$/MWh for violated MW from 10000MW to 99999.999MW

  4. Effects of Different Power Balance Penalty Curve • Scarcity Pricing • Effects on reliability due to dependence on regulation

  5. Study • Parameters • Energy Offer Curves from LFC test date • W_N, N_H & Valley interfaces as competitive constraints • Generation pattern & transmission constraint flows at different load levels. • Monitor • Max/Min/Avg LMP & SPP • Amount of Power Balance violation & dependence on regulation

  6. Shift Factor Cut off • SF cut off • during LFC test was 0.03 • for Nodal is 0.0001 • Effective SF cut off in Nodal => Offer Cost / Max Shadow Price • 0.03 SF => 1 MW generation will provide 0.03 MW relief or 33.33 MW of generation needed • to provide 1 MW relief • Will cost (1/SF) * offer cost • Max cost Market is willing to pay is the Max Shadow Price for the constraint

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