Configuration Guide for: Real Time Congestion Offset / Date: 04/01/09

**Settlements & Billing**

**BPM Configuration Guide: Real Time Congestion Offset**

CC 6774

Version 5.0

CAISO, 2018 / Page 1 of 20Settlements & Billing / Version: 5.0

Configuration Guide for: Real Time Congestion Offset / Date: 04/01/09

**Table of Contents**

1.Purpose of Document

2.Introduction

2.1Background

2.2Description

3.Charge Code Requirements

3.1Business Rules

3.2Predecessor Charge Codes

3.3Successor Charge Codes

3.4Inputs – External Systems

3.5Inputs - Predecessor Charge Codes or Pre-calculations

3.6CAISO Formula

3.7Outputs

4.Charge Code Effective Date

## 1.Purpose of Document

The purpose of this document is to capture the requirements and design specification for a SaMC Charge Code in one document.

## 2.Introduction

### 2.1Background

Consistent with CAISO MRTU Tariff Section 11.5.4.2, the sum of IIE, UIE, and UFE shall be allocated in two steps. CAISO will first compute the Real-Time Congestion Offset and allocate it to all Scheduling Coordinators based on Measured Demand, excluding demand associated with ETC or TOR Self-Schedules for which Real-Time Congestion Credit was provided as specified in CAISO MRTU Tariff Section 11.5.7. To the extent that the sum of the Settlement Amounts for IIE, UIE, and UFE and A/S Congestion Revenue plus RTM Congestion Credit, less Real-Time Congestion Offset does not equal zero, the CAISO will assess Charges or make Payments for the resulting differences to all Scheduling Coordinators based on a pro-rata share of their Measured Demand for the relevant Settlement Interval.

The Real-Time Congestion Offset is defined as the Real-Time Congestion Fund net of the Real-Time Congestion Credit calculated as provided in Tariff Section 11.5.7. Real-Time Congestion Fund is defined for each Trading Hour of the HASP and RTM, as the difference of (1) the sum of the products of the RTM and HASP MCC for Demand and the Demand Imbalance Energy at the relevant Location; and (2) the sum of the products of RTM or HASP MCC for Supply and the Supply Imbalance Energy at the relevant Location; including also the sum of the RTM and HASP Congestion Charges for Intertie Ancillary Services Awards.

The two steps for neutrality are covered in two Charge Codes: RT Congestion Offset (CC 6774) and RT Imbalance Energy Offset (CC 6477).

RTM Congestion Credits to ETC/TOR Holders (CC 6788) would appear as a reduction to the Congestion revenues in CC 6774 (RT Congestion Offset).

### 2.2Description

This Charge Code implements the first step of neutrality for IIE, UIE and UFE as provided for in CAISO MRTU Tariff Section 11.5.4.2. In particular, this Charge Code allocates the HASP and RT Energy and AS Congestion revenues net the RTM Congestion Credit settlement amount to Scheduling Coordinators based on their Measured Demand excluding ETC/TOR/CVR Self-Schedules for which IFM and RTM Congestion Credits were provided.

For every Trading Hour, the Real-Time Congestion Offset Amount is computed as the sum of:

(a)the Congestion revenues from HASP (from CC 6051) and Real Time Energy (calculated within CC 6774) including any Operational Adjustments, with the revenue computed based on the Day-Ahead Schedule deviation of metered quantities plus UFE multiplied by the relevant MCC at each relevant pricing node or aggregation using relevant price and quantity granularities.

(b)the Congestion revenues from AS Imports in the HASP (CC 6711, 6721) and in Real-Time (CC 6715, 6725, 6755, 6765), and

(c)the CAISOSettlementIntervalTotalRTMCongestionCreditSettlementAmount from CC 6788.

This offset amount is allocated to Measured Demand excluding the valid and balanced ETC/TOR schedules for which Real-Time Congestion Credits were provided and to ETC/TOR/CVR schedules for which IFM Congestion Credits were provided. Measured Demand allocation basis for MSS as specified in the Tariff 11.5.4.2 shall be applied.

The SCs that scheduled ETC/TOR/CVRshall have their Measured Demand reduced by the valid and balanced schedule quantities for which IFM and RTM Congestion Credits were provided prior to being allocated the Real-Time Congestion Offset. This holds true even if the congestion credits were credited to the contract designated BillingSC, which maybe different from the aforementioned SCs.

Congestion Credits for CVRs are only applicable through the Transition Period (through 2010).

## 3.Charge Code Requirements

### 3.1Business Rules

Bus Req ID / Business Rule1.0 / This Charge Code allocates per hour, the Real Time Congestion Offset Amount to Scheduling Coordinators based on their Measured Demand excluding valid and balanced ETC/TOR/CVR Self-Schedules (SS) for which IFM and RTM Congestion Credits were provided.

1.1 / This Charge Code shall be calculated daily on an hourly basis.

1.2 / The allocation amount to each SC is the product of the RTCongestionOffsetRate and their Measured Demand less the Demand quantity associated with the recognized valid and balanced ETC/TOR/CVR SS for which IFM and RTM Congestion Credits were provided to the designated BillingSC.

1.3 / The valid and balanced ETC/TOR/CVR Self-Schedules per contract shall be deducted from the Measured Demand of the SC who scheduled contract self-schedules.

1.4 / For an MSS, regardless of gross or net settlement election, the Measured Demand basis shall be the MSS Aggregation Net Non-ETC/TOR/CVR Measured Demand. Calculation is done at each MSS bubble on the net metered load excluding valid and balanced ETC/TOR/CVR Self-Schedules (SS) for which IFM and RTM Congestion Credits were provided. The calculated value is then summed across all MSS bubbles for the MSS Aggregator. To this value, the exports quantity excluding valid and balanced ETC/TOR/CVR at those exports where applicable is added to come up with the Measured Demand basis.

(Fact)

1.5 / This allocation can be a payment or a charge.

2.0 / For every Trading Hour, the Real Time Congestion Offset Amount is the sum of:

a) CAISOSettlementIntervalTotalRTMCongestionCreditSettlementAmt hi(from CC 6788) summed over the hour,

b) Hourly HASP AS Imports congestion revenues from Spin and NonSpin (from CC 6711, and CC 6721), and

c) All hourly Real Time AS Imports congestion revenues from all Ancillary Services (CC6715, 6725, 6755, 6765)

d) The Energy Congestion revenues from HASP (6051BD) and Real Time Energy (6774BD) including any Operational Adjustments, with the revenue computed based on the Day-Ahead Schedule deviation of (metered quantities plus UFE) multiplied by the relevant MCC at each relevant pricing node or aggregation.

2.0.1 / The total congestion revenue from Real-Time Energy per Settlement Interval is the sum of congestion revenues from all resources, where congestion revenue are computed as follows:

(a)for Generators, the product of (i) Settlement Interval RT Imbalance Energy less Standard Ramping Energy and (ii) SettlementIntervalResourceRealTimeMCC;

(b)for Nodal Loads, the product of (i) SettlementInterval RT Imbalance Energy and (ii) SettlementIntervalResourceRealTimeMCC;

(c)for LAP Loads, the sum of (i) Real-Time Congestion Revenue From Lap Load Amount and (ii) Real-Time Congestion Revenue Neutrality Load Amount.

(d)the Real-Time Congestion Revenue From Lap Load Amount is the product of (i) Settlement Interval RT Imbalance Energy and (ii) SettlementIntervalLAPResourceRealTimeMCC;

(e)the Real-Time Congestion Revenue Neutrality Load Amount is the product of: (i) Day Ahead Load Schedule, and

(ii) the summed product of (1) Hourly Real Time Lap MCC normalized to the member PNodes based on metered demand, and (2) the change in Day Ahead Load Distribution Factors and Real Time Load Distribution Factor;

(f)for System Resources and Tie Generators:

(1) for Non-dynamic System Resources, the product of (i) Operational Adjustment not covered in the HASP (SettlementIntervalOAfromDAorRTEnergy) and (ii) SettlementIntervalResourceRealTimeMCC ;

(2) for Dynamic System Resources, the product of (i) Settlement Interval RT Imbalance Energy less Standard Ramping Energy and (ii) SettlementIntervalResourceRealTimeMCC;

(g)for UFE adjustments, the product of (i) the UFE quantity per UDC (obtained as the sum of all UFE quantities of BAs for that UDC) and (ii) the UDC Settlement Interval MCC (computed similarly to that of UDC Settlement Interval LMP);

(h)for MSS Operators that have elected net Settlement where MSS internal measured Generation exceeds MSS internal Measured Demand the product of (i) Settlement Interval RT Imbalance Energy less Standard Ramping Energy and (ii) SettlementIntervalResourceRealTimeMSSMCC;

(i)for MSS Operators that have elected net Settlement where MSS internal Measured Demand exceeds MSS internal measured Generation the product of (i) Settlement Interval RT Imbalance Energy and (ii) SettlementIntervalResourceRealTimeMSSMCC.

2.0.2 / Settlement Interval RT Imbalance Energy is defined for each Resource Location as the difference between its metered quantity and its Day-Ahead Schedule.

2.0.3 / Each resource is mapped to the appropriate Price Node or Aggregated Pricing Node location.

2.1 / The RTCongestionOffset rate is the quotient of: (1) the Real Time Congestion Offset Amount, and (2) the CAISO Measured Demand excluding balanced ETC/TOR Self-Schedules for which IFM and RTM Congestion Credits were provided.

3.0 / PTB Charge Allocation adjustment is not allowed for this charge code.

4.0 / The net imbalance amount calculated as the sum of (1) total amounts for charge codes 6711, 6721, 6715, 6725, 6755, 6765, (2) the RTM Congestion Credit settlement amount in CC 6788; and (3)CAISOHourlyTotalHASPEnergyCongestionAmt h from CC 6051 minus (4) the RT Congestion Offset amount in CC 6774, in a given Trading hour, is attributed to rounding and must be output to CC 4989 Rounding Adjustment Allocation.

### 3.2Predecessor Charge Codes

**Charge Code/ Pre-calc Name**

Measured Demand over Control Area Pre-calculation

Real Time Energy Quantity Pre-calculation

Real Time Price Pre-calculation

CC 6711 - HASP Congestion - AS Spinning Reserve Import Settlement

CC 6721 - HASP Congestion - AS Non-Spinning Reserve Import Settlement

CC 6715 – Real Time Congestion – AS Spinning Reserve Import Settlement

CC 6725 – Real Time Congestion – AS Non-Spinning Reserve Import Settlement

CC 6755 – Real Time Congestion – AS Regulation Up Import Settlement

CC 6765 – Real Time Congestion – AS Regulation Down Import Settlement

CC 6788 – Real Time Market Congestion Credit Settlement

CC 6051 - HASP Energy, Congestion, and Loss Predispatched Settlement

CC 6474 – Real Time Unaccounted for Energy Settlement

CC 6475 – Real Time Uninstructed Imbalance Energy Settlement

MSS Netting Precalc

### 3.3Successor Charge Codes

**Charge Code/ Pre-calc Name**

CC 6477 – Real Time Imbalance Energy Offset

### 3.4Inputs– External Systems

Row # / Variable Name / Description1 / HourlyPredispatchFlag Brth / A flag associated with a resource, the value is 1 (“True”) when the resource is predispatchable in the HASP; otherwise, the value is 0 (“False”) or is Null or the BD is not created.

2 / DALoadSchedule BrtuT’I’M’AA’R’pW’F’S’vVL’h / DA Load Schedule associated with Business Associate B for for Non-Participating Load Resource r, Resource type t, and Trading Hour h as provided by IFMwhere Entity Type T’, UDC Index u, MSS Gross/Net Energy Settlement Type I’, and MSS Subgroup M’, APN ID A, APN Type A’, Penalty Resource ID R’, Price Node p, MSS Emissions Pay Flag W’, Entity Component F’, Entity Component Subtype S’, RUC Participation Flag V, and Load Following Flag L’ are mapped to the Master File.

This is assumed to be negative in the formulas.

### 3.5Inputs - Predecessor Charge Codes or Pre-calculations

Row # / Variable Name /**Predecessor Charge Code/ Pre-calc Configuration**

1 / BAHourlyMeasuredDemandMinusBalancedRightsQuantity_EX_RTM_CONGOFF Bmdh / Measured Demand over Control Area Pre-calculation

Note: This is assumed negative in the current charge code.

2 / CAISOHourlyMeasuredDemandMinusBalancedRightsQuantity_EX_RTM_CONGOFF mdh / Measured Demand over Control Area Pre-calculation

Note: This is assumed negative in the current charge code.

3 / CAISOSettlementIntervalTotalRTMCongestionCreditSettlementAmount hi / CC 6788 – RTM Congestion Credit Settlement

4 / CAISOHourlyTotalRTCongestionSpinAmount h / CC 6715 – Real Time Congestion – AS Spinning Reserve Import Settlement

5 / CAISOHourlyTotalRTCongestionNonSpinAmount h / CC 6725 – Real Time Congestion – AS Non-Spinning Reserve Import Settlement

6 / CAISOHourlyTotalRTCongestionRegUpAmount h / CC 6755 – Real Time Congestion – AS Regulation Up Import Settlement

7 / CAISOHourlyTotalRTCongestionRegDownAmount h / CC 6765 – Real Time Congestion – AS Regulation Down Import Settlement

8 / CAISOTotalHASPSpinCongestionAmount h / CC 6711 - HASP Congestion - AS Spinning Reserve Import Settlement

9 / CAISOTotalHASPNonSpinCongestionAmount h / CC 6721 - HASP Congestion - AS Non-Spinning Reserve Import Settlement

10 / HourlyHASPEnergyCongestionAmt Brth / CC 6051 - HASP Energy, Congestion, and Loss Predispatched Settlement

11 / SettlementIntervalOAfromDAorRTEnergyBrtuT’I’M’F’S’hi / Real-Time Energy Quantity Pre-calculation

12 / SettlementIntervalRealTimeImbalanceEnergy BrtuT’I’M’F’S’hi / Real-Time Energy Quantity Pre-calculation

13 / SettlementIntervalStandardRampingEnergy BrtuT’I’M’F’S’hi / Real-Time Energy Quantity Pre-calculation

14 / UDCSettlementIntervalMCC uhi / Real-Time Price Pre-calculation

15 / SettlementIntervalResourceRealTimeMCC BrtuM’hi / Real-Time Price Pre-calculation

16 / SettlementIntervalRealTimeLAPMCCuM’AA’hi / Real-Time Price Pre-calculation

17 / SettlementIntervalRealTimeMSSMCC uM’AA’hi / Real-Time Price Pre-calculation

18 / SettlementIntervalRealTimePNodeMCC uM’phi / Real Time Price Pre-calculation

19 / Business_Associate_UFE_Quantity BuM’mdhi / CC 6474 – Real-Time Unaccounted for Energy Settlement

20 / BASettlementIntervalMSSGenerationQuantity BuT’I’M’F’S’mdhi / CC 6475 – Real Time Uninstructed Imbalance Energy Settlement

21 / BASettlementIntervalMSSLoadDemandQuantity BuT’I’M’F’S’mdhi / CC 6475 – Real Time Uninstructed Imbalance Energy Settlement

22 / BAResEntitySettlementIntervalMeteredCAISODemandQuantity BrtuT’I’Q’M’AA’F’R’pPW’QS’d’Nz’VvHn’L’mdhi / MSS Netting Precalc

23 / IntervalNodalMeteredCAISODemandQuantity_MDOverCA AA’mdhi / Measured Demand over Control Area Pre-calculation

24 / HourlyDANodalLDF uM’AA’ph / Real Time Price Pre-calculation

25 / HourlyRTNodalLDF uM’AA’ph / Real Time Price Pre-calculation

CAISO, 2018 / Page 1 of 20

Settlements & Billing / Version: 5.0

Configuration Guide for: Real Time Congestion Offset / Date: 04/01/09

### 3.6CAISO Formula

Note:The formulas here assume that Demand quantities are negative while Supply quantities are positive, in particular, the external input for Measured Demand of Load (LOAD) and Exports (ETIE), as well as the corresponding Day-Ahead Schedules for those demand resources follow this sign convention. The same sign convention is assumed in coming up with the Imbalance Energy quantities.

3.6.1The pro-rata allocation of the Real Time Congestion Offset amount to Scheduling Coordinator B for Trading hour h

RTCongestionOffsetAllocation Bh = (RTCongestionOffsetRateh*BAHourlyMeasuredDemandMinusBalancedRightsQuantity_EX_RTM_CONGOFFBmdh)

3.6.1.1Where

IF CAISOHourlyMeasuredDemandMinusBalancedRightsQuantity_EX_RTM_CONGOFF mdh> 0

THEN

RTCongestionOffsetRate h = (-1)*( CAISOHourlyRTCongestionOffsetAmth /

CAISOHourlyMeasuredDemandMinusBalancedRightsQuantity_EX_RTM_CONGOFFmdh)

ELSE

RTCongestionOffsetRate h =0

3.6.1.1.1Where

CAISOHourlyRTCongestionOffsetAmt h=

CAISOHourlyTotalHASPEnergyCongestionAmt h

+ CAISOHourlyTotalRTEnergyCongestionAmt h

+ (CAISOSettlementIntervalTotalRTMCongestionCreditSettlementAmount hi)

+ CAISOHourlyTotalRTCongestionSpinAmount h

+ CAISOHourlyTotalRTCongestionNonSpinAmount h

+ CAISOHourlyTotalRTCongestionRegUpAmount h

+ CAISOHourlyTotalRTCongestionRegDownAmount h

+ CAISOTotalHASPSpinCongestionAmount h

+ CAISOTotalHASPNonSpinCongestionAmount h)

3.6.1.2Where

CAISOHourlyTotalRTEnergyCongestionAmt h =

CAISOSettlementIntervalTotalRTEnergyCongestionAmt hi

3.6.1.3Where

CAISOSettlementIntervalTotalRTEnergyCongestionAmt hi =

(RTCongRevenuefromGeneratorsAmount hi

+ RTCongRevenuefromLoadsAmount hi

+ RTCongRevenuefromUFEAdjustmentAmount hi

+ RTCongRevenuefromSystemResourcesAmount hi

+ RTCongRevenuefromNetMSSResourcesAmount hi )

3.6.1.3.1Where Resource type (t) = Generator

and Where T’ > MSS

or Where T’ = MSS and I’ = Gross

RTCongRevenuefromGeneratorsAmount hi = {(1)* [( SettlementIntervalRealTimeImbalanceEnergy BrtuT’I’M’F’S’hi – SettlementIntervalStandardRampingEnergy BrtuT’I’M’F’S’hi) * SettlementIntervalResourceRealTimeMCC BrtuM’hi ]}

The above is implemented using three charge types as follows:

(a) Where Resource Type (t) = GEN and Entity Type (T’) > MSS

RTCongRevenuefromGeneratorsNonMSSAmounthi =

{ (-1)* [( SettlementIntervalRealTimeImbalanceEnergy BrtuT’I’M’F’S’hi – SettlementIntervalStandardRampingEnergy BrtuT’I’M’F’S’hi) *

SettlementIntervalResourceRealTimeMCC BrtuM’hi ]}

(b) Where Resource Type (t) = GEN

and Entity Type (T’) = MSS

and MSS_GROSS_OR_NET_FLAG (I’) = GROSS

RTCongRevenuefromGeneratorsMSSGrossAmount hi =

{ (-1)* [( SettlementIntervalRealTimeImbalanceEnergy**BrtuT’I’M’F’S’hi** – SettlementIntervalStandardRampingEnergy **BrtuT’I’M’F’S’hi**) *

SettlementIntervalResourceRealTimeMCC BrtuM’hi ]}

(c) RTCongRevenuefromGeneratorsAmount hi =

RTCongRevenuefromGeneratorsNonMSSAmount hi + RTCongRevenuefromGeneratorsMSSGrossAmount hi

3.6.1.3.2 Where

RTCongRevenuefromLoadsAmount hi = RTCongRevenuefromNodalLoadNonMSSAmounthi + RTCongRevenuefromTotalLAPLoadAmount hi

3.6.1.3.2.1(a) And Where Entity Type (T’)‘MSS’

And Resource Type (t) = ‘LOAD’

And APnode Type (A)’ > ‘DEFAULT’ or ‘CUSTOM’

RTCongRevenuefromNodalLoadNonMSSAmounthi =

(-1)*[ (SettlementIntervalRealTimeImbalanceLoadEnergy_CongBrtuT’I’M’AA’F’S’phi *

SettlementIntervalResourceRealTimeMCCBrtuM’hi )]

(b)WhereResource Type (t) = ‘LOAD’

SettlementIntervalRealTimeImbalanceLoadEnergy_CongBrtuT’I’M’AA’F’S’phi =

(SettlementIntervalMeteredLoadEnergy_CongBrtuT’I’M’F’S’AA’phi * 0 +

SettlementIntervalRealTimeImbalanceEnergyBrtuT’I’M’F’S’hi )

**Implementation Note:**This formula populates the A, A’ and p attributes as intended by this and the next charge type.

(c) Where Resource Type (t) = ‘LOAD’

SettlementIntervalMeteredLoadEnergy_CongBrtuT’I’M’F’S’AA’phi =

BAResEntitySettlementIntervalMeteredCAISODemandQuantity BrtuT’I’Q’M’AA’F’R’pPW’QS’d’Nz’VvHn’L’mdhi

3.6.1.3.2.2And Where

RTCongRevenuefromTotalLAPLoadAmount hi = RTCongRevenuefromLAPLoadAmount hi + RTCongRevenueNeutralityLoadAmount hi

3.6.1.3.2.2.1WhereEntity Component Subtype (S’) = ‘NPL’ OR ‘GL’

RTCongRevenuefromLAPLoadAmount hi =

[(-1) * (SettlementIntervalRealTimeImbalanceEnergy BrtuT’I’M’F’S’hi * (SettlementIntervalRealTimeLAPMCC uM’AA’hi ))

The above is implemented as:

RTCongRevenuefromLAPLoadAmount hi =

(-1) * (SettlementIntervalRealTimeImbalanceLoadEnergy_CongBrtuT’I’M’AA’F’S’phi * SettlementIntervalRealTimeLAPMCC uM’AA’hi)

(a) Where

RTCongRevenueNeutralityLoadAmount hi = BAResourceRTCongRevenueNeutralityLoadAmountBrtuT’I’M’F’S’hi

(b)Where

BAResourceRTCongRevenueNeutralityLoadAmountBrtuT’I’M’F’S’hi = (RTCongRevenueNeutralityAllocationuM’AA’hi *

(BAResEntitySettlementIntervalMeteredCAISODemandQuantity BrtuT’I’Q’M’AA’F’R’pPW’QS’d’Nz’VvHn’L’mdhi / IntervalNodalMeteredCAISODemandQuantity_MDOverCAAA’mdhi ))

Where Resource type (t) = ‘LOAD’ and Entity Component Subtype (S’) = ‘NPL’ OR ’GL’

3.6.1.3.2.2.1.1Where

RTCongRevenueNeutralityAllocation uM’AA’hi = (-1) * (1/6) * HourlyDefaultLAPDALoadScheduleuM’AA’h* SettlementIntervalDefaultLAPNeutralityMCCPriceAA’hi

3.6.1.3.2.2.2Where Entity Component Subtype (S’) = ‘NPL’ OR ‘GL’

HourlyDefaultLAPDALoadSchedule uM’AA’h =

DALoadSchedule BrtuT’I’M’AA’R’pW’F’S’vVL’h

3.6.1.3.2.2.3And Where SettlementIntervalDefaultLAPNeutralityMCCPrice AA’hi =

SettlementIntervalRealTimePNodeMCC uM’phi * (HourlyRTNodalLDF uM’AA’ph- HourlyDANodalLDF uM’AA’ph)

3.6.1.3.3Where Resource type (t) = ITIE or ETIE

RTCongRevenuefromSystemResourcesAmount hi =

{

[IF HourlyPredispatchFlag Brth = 1

THEN

(-1)*(SettlementIntervalOAfromDAorRTEnergy BrtuT’I’M’F’S’hi * SettlementIntervalResourceRealTimeMCCBrtuM’hi )

ELSE {meaning HourlyPredispatchFlag Brth = 0, or HourlyPredispatchFlag Brth is Null }

(-1) * (SettlementIntervalRealTimeImbalanceEnergyBrtuT’I’M’F’S’hi – SettlementIntervalStandardRampingEnergy BrtuT’I’M’F’S’hi )*(SettlementIntervalResourceRealTimeMCCBrtuM’hi )

END IF}

3.6.1.3.4Where

RTCongRevenuefromUFEAdjustmentAmount hi= (-1)*(Business_Associate_UFE_Quantity BuM’mdhi * UDCSettlementIntervalMCC uhi)

3.6.1.3.5Where T’ = MSS and I’ = Net

IF (Abs(BASettlementIntervalMSSGenerationQuantityBuT’I’M’F’S’mdhi) >=

Abs(BASettlementIntervalMSSLoadDemandQuantityBuT’I’M’F’S’mdhi))

THEN

RTCongRevenuefromNetMSSResourcesAmount hi = { (-1) * [( SettlementIntervalRealTimeImbalanceEnergy BrtuT’I’M’F’S’hi – SettlementIntervalStandardRampingEnergy BrtuT’I’M’F’S’hi) * SettlementIntervalRealTimeMSSMCC uM’AA’hi ]}

ELSE

RTCongRevenuefromNetMSSResourcesAmounthi = [(-1)* (SettlementIntervalRealTimeImbalanceEnergy BrtuT’I’M’F’S’hi * AVERAGE(SettlementIntervalRealTimeMSSMCC uM’AA’hi))]

END IF

Note: In the above formula, the expression

AVERAGE(SettlementIntervalRealTimeMSSMCC uM’AA’hi) is implemented

as a separate formula:

SettlementIntervalRealTimeMSSMCC_LessAA’ uM’hi = AVERAGE(SettlementIntervalRealTimeMSSMCC uM’AA’hi)

Averaging over the summed attributes is made to come up with the right price.

3.6.1.3.6Where CAISOHourlyTotalHASPEnergyCongestionAmt h=

HourlyHASPEnergyCongestionAmt Brth

### 3.7Outputs

Output Req ID / Name / Description1 / In addition to any outputs listed below, all inputs shall be included as outputs. / All inputs.

2 / RTCongestionOffsetRateh / The Real-Time Congestion Offset rate for the hour.

3 / CAISOHourlyRTCongestionOffsetAmt h / The Real-Time Congestion Offset Amount for the hour to be allocated to SCs.

4 / RTCongestionOffsetAllocation Bh / The pro-rata allocation of the Real-Time Congestion Offset Amount to Scheduling Coordinator B for Trading hour h.

5 / CAISOHourlyTotalHASPEnergyCongestionAmt h / The net congestion revenue from HASP Energy for Trading Hour h.

6 / CAISOSettlementIntervalTotalRTEnergyCongestionAmthi / Congestion revenue from RT Energy including non-HASP Operational Adjustments for Trading Hour h, Settlement Interval i. ($)

Note: This amount contains portion of congestion charges to ETC/TOR holders reversed in CC 6788.

7 / CAISOHourlyTotalRTEnergyCongestionAmt h / Congestion revenue from RT Energy including non-HASP Operational Adjustments for hour h. ($)

Note: This amount contains portion of congestion charges to ETC/TOR holders that will be reversed in CC 6788.

8.1 / RTCongRevenuefromGeneratorsAmount hi / Component of CAISOHourlyTotalRTEnergyCongestionAmt h associated with metered internal generation

8.2 / RTCongRevenuefromGeneratorsNonMSSAmount hi / Component of RTCongRevenuefromGeneratorsAmount hi coming from non-MSS generators

8.3 / RTCongRevenuefromGeneratorsMSSGrossAmount hi / Component of RTCongRevenuefromGeneratorsAmount hi coming from MSS Gross generators.

9 / RTCongRevenuefromLoadsAmount hi / Component of CAISOHourlyTotalRTEnergyCongestionAmt h associated with Load or Participating Load when consuming Energy

10 / <Not used.>

11 / RTCongRevenuefromTotalLAPLoadAmount hi / Component of RTCongRevenuefromLoadsAmount hi for loads which are part of a Default LAP or Custom LAP

12 / RTCongRevenuefromLAPLoadAmount hi / Component of RTCongRevenuefromTotalLAPLoadAmount hi for loads which are part of a Default LAP or Custom LAP

13.1 / RTCongRevenueNeutralityLoadAmount hi / Component of RTCongRevenuefromTotalLAPLoadAmount hi for loads which are part of a Default LAP; includes Non-MSS and MSS Gross.

13.2 / BAResourceRTCongRevenueNeutralityLoadAmountBrtuT’I’M’F’S’hi / BA Resource Component of RTCongRevenuefromTotalLAPLoadAmount hi for loads which are part of a Default LAP; includes Non-MSS and MSS Gross.

14 / RTCongRevenuefromUFEAdjustmentAmount hi / Component of CAISOHourlyTotalRTEnergyCongestionAmt hi associated with UFE adjustment to metered quantities

15 / RTCongRevenuefromSystemResourcesAmount hi / Component of CAISOHourlyTotalRTEnergyCongestionAmt h associated with both dynamic and non-dynamic system resources.

16 / RTCongRevenuefromNetMSSResourcesAmount hi / Component of CAISOHourlyTotalRTEnergyCongestionAmt h associated with both MSS Generation and MSS Demand where MSS Operator elects net Settlement.

17 / SettlementIntervalDefaultLAPNeutralityMCCPrice AA’hi / The LAP Neutrality price with the Default LAP for APNode A.