Settlements and Billing



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Predecessor Charge Codes





Charge Code/ Pre-calc Name

Pre-calc – System Resource Deemed Delivered Energy Quantity

Pre-calc – MSS Netting

Pre-calc – RT Energy Quantity

Pre-calc – Start-up and Minimum Load Cost

CC 7070 – Flexible Ramp Forecasted Movement Settlement


Successor Charge Codes





Charge Code/ Pre-calc Name

Pre-calc – IFM Net Amount

Pre-calc – RTM Net Amount

Pre-calc – RUC Net Amount

Pre-calc – Start-Up and Minimum Load Cost

CC 6482 – RT Excess Cost for Instructed Energy Settlement

CC 6488 – Exceptional Dispatch Uplift Settlement



Inputs – External Systems





Row #

Variable Name

Description



ZeroTolerance

Standing data. The input is a constant that represents the tolerance of the zero test used for the Metered Energy Adjustment Factor calculation. The input’s initially programmed value = 0.0000000009.

Note:


Actual implementation of the Metered Energy Adjustment Factor (MEAF) calculations is influenced by a a product limitation whereby the software engine utilizes numbers within its cache that may have a precision beyond 9 decimal places. A number may appear to be zero as it is written to and read from the database, yet the number utilized within the cache during the calculation may appear as a very small, non-zero number. The ZeroTolerance input is used to check whether the value of a given BD = 0 within the tolerance specified by the ZeroTolerance input. The zero test is performed in a MEAF ratio’s calculation for which the BD is used as a divisor, in order to provide the correct mathematical results when the BD’s value is considered infinitesimal.



DispatchIntervalDAMinimumLoadEnergy BrtuT’I’M’VL’W’R’F’S’mdhcif

DA Minimum Load Energy (in MWh) for a given resource and Dispatch Interval.



DispatchIntervalTotalExpectedEnergy BrtEuT’I’Q’M’AA’W’R’pF’S’VL’mdhcif

Dispatch Interval Energy (in MWh) that corresponds to the Energy under the DOP for a given resource and Dispatch Interval.

The Energy quantity can be either a positive or negative value.





DAPumpingEnergy BrtuT’I’Q’M’VL’W’R’F’S’mdhcif


The Day Ahead Pumping Energy (in MWh) from a Pumped-Storage Unit or Participating Load for a specified Dispatch Interval.



DispatchIntervalFMMPumpingEnergy BrtuT’I’Q’M’VL’W’R’F’S’mdhcif

The FMM IIE Energy from a Participating Load Pumped-Storage Unit or Pumping Load consumed or produced during pumping operation.



DispatchIntervalRTPumpingEnergy BrtuT’I’Q’M’VL’W’R’F’S’mdhcif

The RTD IIE Energy from a Participating Load Pumped-Storage Unit or Pumping Load consumed or produced during pumping operation.



DALoadSchedule BrtuT’IQ’MAA’R’pW’F’S’vVL’mdh

DA Load Schedule (in MWh) for a given resource and Trading Hour.

The input is represented as a negative value.





BAResBaseLoadSchedule BrtuT’I’Q’M’AA’R’W’F’S’VL’pmdh

The final Base Schedule (in MW) for Load resources in a given EIM Balancing Authority Area.



DAScheduleEnergyQuantity BrtuT’I’M’VL’W’R’F’S’mdhcif

DA Energy Schedule (in MWh) that corresponds to the flat hourly Day-Ahead Schedule (DAS). It is composed of Day-Ahead Minimum Load Energy, Day-Ahead Self-Scheduled Energy, and Day-Ahead Bid for a given resource and Dispatch Interval.



BAResBaseScheduleEnergy BrtuT’I’Q’M’R’W’F’S’VL’mdhcif

The final Base Schedule (in MWh) for generation, import, and export resources in an EIM Balancing Authority Area.



BAResourceDispatchIntervalRMREnergy BrtuT’I’M’F’S’mdhcif

RMR Energy quantity (in MWh) for a given resource and Dispatch Interval.



BADispatchIntervalResourceTransitionFlag BrtuT’I’M’F’S’mdhcif

Flag (as a 0/1 Boolean value) that indicates for a given Dispatch Interval whether (1) or not (0) a specified resource is expected (as part of an instructed operation) to be in a startup, shutdown, or MSG transition period, or a period in which it is crossing over a Forbidden Operating Region, or the time period for which a Dispatch Operating Point correction is performed due to a verbal Dispatch Instruction issued by the CAISO Operator, as long as the resource is in fact in the operational mode instructed by the CAISO.



BADispatchIntervalResourcePMToleranceBandRampingQty BrtuT’I’M’F’S’mdhcif

Ramping tolerance (in MWh) measured as the Expected Energy Dispatch Operating Point (DOP) less the Expected Energy Dispatch Operating Target (DOT) over a 5-minute Dispatch Interval for a given resource. The input is intended to be added to the Tolerance Band as ramping tolerance in the configured calculation of the Performance Metric Tolerance Band (as specified in the “CAISO Formula” section herein).



InspectionWindowDeviationCountThreshold md

A count (as an integer value) that serves as the lthreshold for the number of Settlement Intervals over a 2- hour adjacent window where in the interval a resource can exceed the Performance Metric Tolerance Band without having its bid cost basis mitigated as a consequence of persistent deviation. The count is stored in the Settlements system as resident “factor” data. The currently specified count threshold value = 6.



VERFLAG Brtmd

Variable Energy Resource Flag for Resource r. A value of “1” indicates a certified Variable Energy Resource (VER), while a “0” value indicates that the resource is not certified as a VER.



GenerationInfiniteRampRateFactor md

The input represents the infinite ramp rate for Generation. Its value shall be the constant “9999”. A VER is presumed to have infinite ramp rate, whereby the resource is deemed capable of instaneously correcting its output for a change in its hourly Energy forecast from one FMM Interval to the next.



BAHourlyResRTMEnergyBidQty BrtuQ’bAA’pF’S’mdh

The input represents the hourly Real Time Market Energy Bid Quantity (in MW) by Business Associate and resource ID.



BADailyResourceFiveMinuteDynamicRampRateQuantity Brmd

The 5-minute ramping Energy capability (in MWh) for a specified resource.


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