operation of the unit, it operates either as a Generator or as a pump. It is revenue metered at its POR. The unit model is similar to that shown in Exhibits 4-5 and 4-6. When operating as a Generator, the unit supplies Power to the CAISO Controlled Grid. When operating as a pump, the unit takes Power from the CAISO Controlled Grid. There is one resource ID in Master File to represent the physical unit of the pump storage plant in both generation mode and load/pump mode. There is also an indication that this unit can either generate or pump. This market resource participates in the CAISO Markets as either a Generator or a Load. The IFM Bids and Dispatch are on the basis of the market resource information. The Market software internally handles the Generation or Demand Bid of this market resource and commit/Dispatch appropriately. The market software can handle both modes of the pump storage plants with single resource ID. One is the generation model, which is the positive schedule, and the other is load/pump mode, which is the negative schedule. Settlements applies the appropriate rules for settling this market resource in a particular interval dependent on the direction of Energy flow (injection to network=Generation, take from network=pumping Load). The generating limits of the unit reflect its market registration and can be different from the physical limits. The MW value and limits for Dispatch purposes (and IFM Bids, Dispatch and Settlement) are based on the overall Market Resource POR. Generating Unit with POR at Generator Tie The Node at which Energy is delivered to a receiving party may be different from the node at which the Energy is generated. Refer to Exhibit 4-7. This is a Generating Unit with auxiliary Load and with the station transformer modeled. The unit is metered at the station bus. The POR is remote from the Generator station bus linked to the Generator by a Generator tie. Exhibit 47: Generating Unit Market POR Different from Generator Terminal There is one Market Resource entry in the Master File with one physical unit and auxiliary Load. The Market limits are different from the physical unit limits and represent the commercial unit’s limits. Commercial data describing a Generating Unit's physical capabilities are contained in the CAISO's Master File, and are values that the Generator can regularly deliver to the CAISO Markets. The Generating Unit may have additional physical capacity that is available under
operation of the unit, it operates either as a Generator or as a pump. It is revenue metered at its POR. The unit model is similar to that shown in Exhibits 4-5 and 4-6. When operating as a Generator, the unit supplies Power to the CAISO Controlled Grid. When operating as a pump, the unit takes Power from the CAISO Controlled Grid. There is one resource ID in Master File to represent the physical unit of the pump storage plant in both generation mode and load/pump mode. There is also an indication that this unit can either generate or pump. This market resource participates in the CAISO Markets as either a Generator or a Load. The IFM Bids and Dispatch are on the basis of the market resource information. The Market software internally handles the Generation or Demand Bid of this market resource and commit/Dispatch appropriately. The market software can handle both modes of the pump storage plants with single resource ID. One is the generation model, which is the positive schedule, and the other is load/pump mode, which is the negative schedule. Settlements applies the appropriate rules for settling this market resource in a particular interval dependent on the direction of Energy flow (injection to network=Generation, take from network=pumping Load). The generating limits of the unit reflect its market registration and can be different from the physical limits. The MW value and limits for Dispatch purposes (and IFM Bids, Dispatch and Settlement) are based on the overall Market Resource POR. Generating Unit with POR at Generator Tie The Node at which Energy is delivered to a receiving party may be different from the node at which the Energy is generated. Refer to Exhibit 4-7. This is a Generating Unit with auxiliary Load and with the station transformer modeled. The unit is metered at the station bus. The POR is remote from the Generator station bus linked to the Generator by a Generator tie. Exhibit 47: Generating Unit Market POR Different from Generator Terminal There is one Market Resource entry in the Master File with one physical unit and auxiliary Load. The unit’s Market limits are different from the physical unit limits and represent the commercial limits. Commercial data describing a Generating Unit's physical capabilities are contained in the CAISO's Master File, and are values that the Generator can regularly deliver to the CAISO Markets. The Generating Unit may have additional physical capacity that is available under