Idd part 1 Interfaces with bsc parties and their Agents




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8 SAA External Inputs and Outputs

8.1 SAA Flow Overview


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idd part 1 16

8.2 SAA-I006: (input) BM Unit Metered Volumes for Interconnector Users


Interface ID:

SAA-I006


Source:

IA


Title:

BM Unit Metered Volumes for Interconnector Users



BSC reference:

RETA SCH: 4, B, 2.4.1

SAA SD: 2.4, A1, CP555


Mechanism

Electronic data file transfer



Frequency:

Daily


Volumes:


Interface Requirement:

The SAA Service shall receive BM Unit Metered Volumes for Interconnector Users once a day from Interconnector Administrators.




The BM Unit Metered Volumes for Interconnector Users data shall include:


Interconnector ID

Settlement Date

BM Unit ID

Settlement Period (1-50)

Energy Volume Reading (MWh)



8.3 SAA-I012: (input) Dispute Notification


Interface ID:

SAA-I012


Source:

BSC Party,

BSCCo Ltd

System Operator



Title:

Dispute Notification



BSC reference:

RETA SCH: 4, B, 2.4.1

SAA SD: 2.9, 5.1.2

SAA BPM: 3.18, 4.16



Mechanism:

Manual


Frequency:

Ad-hoc


Volumes:


Interface Requirement:

The SAA Service shall receive Dispute Notifications from BSC Parties, BSCCo Ltd and the SO on an ad-hoc basis.


The contents of these notifications are likely to vary according to the nature of the individual dispute, but as a minimum shall include:


  1. BSC Party raising dispute

  2. The BSC Party’s unique reference for the dispute

  3. Settlement Dates and Periods under dispute

  4. Optionally and if appropriate, the reported values which are under dispute

  5. The reason why the values are under dispute

  6. The estimated total materiality of the dispute (e.g. the BSC Party believes that the report is in error by 100MW)

  7. The identity of any other parties involved in the dispute.



8.4 SAA-I014: (output) Settlement Reports


Interface ID:

SAA-I014


User:

BSC Party,

BSCCo Ltd,

System Operator



Title:

Settlement Reports



BSC reference:

RETA SCH: 4, B, 2.2.1

SAA SD: 3.54, 4.1, 4.2, A2

SAA BPM: 3.19, 4.41

SAA IRR: SAA5, SAA7, SAA8, SAA9, P8, P18A, CP527, CP597, P78, P194, P217


Mechanism:

Electronic data file transfer



Frequency:

Daily


Volumes:


Interface Requirement:

The SAA Service shall issue Settlement Reports to BSC Parties, BSCCo Ltd and the SO once a day.


The contents of the Settlement Reports sent to the SO and BSCCo Ltd are listed in Part 2 of the IDD.


The Settlement Report to a BSC Party shall include:


Settlement Date information:

Settlement Date

Settlement Run Type

SAA Run Number

SAA CDCA Settlement Run number

SVAA CDCA Settlement Date

SVAA CDCA Settlement Run Number

SVAA SSR Run Number

BSC Party Id

Aggregate Party Day Charges (see below)


Settlement Period Information:

Settlement Period (1-50) (j)

Aggregate Party Period Charges (see below)

System Period Data (see below)


Market Index Information:

Market Index Data (see below)


Balancing Services Adjustment Action Information (post-P217 only):

Balancing Services Adjustment Action Data (see below)


Account Period Information:

Production/Consumption Flag (a)

Account Period Data (see below)
Account Period BMU Information:

BM Unit ID (i)

Account Period BMU Data (see below)
BM Unit Period Information:

BM Unit ID

BM Unit Period Data (see below)

Trading Unit Name

Total Trading Unit Metered Volume (MWh)
BM Unit Period FPN Spot Points (fFPNit):

Time from

FPN Value from

Time to


FPN Value to
BM Unit Period Bid-Offer Information:

Bid-Offer pair number (n)

Bid-Offer Data (see below)
BM Unit Period Bid-Offer Spot Points (fQBOnij):

Time from

Bid-Offer Value from

Time to


Bid-Offer Value to
BM Unit Period Bid-Offer Acceptance (for all Settlement Dates):

Bid-Offer Acceptance number

CADL Flag
BM Unit Period Bid-Offer Acceptance (for post P217 Settlement Dates):

SO-Flag
BM Unit Period Bid-Offer Acceptance Spot Points (qAkit):

Time from

Bid-Offer Acceptance Level from

Time to

Bid-Offer Acceptance Level to


BM Unit Bid-Offer Pair Acceptance Volume Data (post P217 only):

Bid-Offer Pair Number

Bid-Offer Pair Acceptance Bid Volume

Bid-Offer Pair Acceptance Offer Volume


BM Unit MVR Information:

Subsidiary Party ID and Production/Consumption Flag (a)

MVR Data (see below)


Physical Interface Details:

This is sub-flow 1 of the Settlement Report, file id S0141



Note:

SAA CDCA Settlement Run Number

Identifies the CDCA run which generated volumes used directly by SAA in the settlement calculations

For all settlement runs, other than Interim Initial for Settlement Dates prior to the P253 effective date:

SVAA CDCA Settlement Date

SVAA CDCA Settlement Run Number

Identify the CDCA run for Settlement Date which generated the GSP Group Take volumes which were allocated by the SVAA

SVAA SSR Run Number

Identifies the SVAA Run for Settlement Date which generated the SVA BM Unit volumes



For Interim Initial Settlement Runs for Settlement Dates prior to the P253 effective date:

SVAA CDCA Settlement Date

SVAA SSR Run Number

Identify the Settlement Date and Initial Settlement (SF) SVAA Run from which SVA volumes are derived

SVAA CDCA Run Number

Will be zero

The intention of this report is to provide all information necessary for calculating charges.

The following types of data are not included in the settlement report as currently defined:



  1. minute-by-minute data such as FPNij(t), which can be derived from the spot point data.

  2. intermediate data on bid-offer acceptance such as QABknij which can be derived from the bid-offer and acceptance spot point data.

In the following descriptions, a definition of the data item is given which is consistent with that used in the SAA URS. The following exceptions to this are noted:

1. TCBSCCOj is used to represent the BSCCo Ltd Costs allocated to the settlement period as a whole

2. CBSCCOaj is used to represent the allocation of TCBSCCOj to a particular energy account.



Variables (with their subscripts as appropriate) are as defined in the SAA URS. For a definition of what the variables mean and their derivation, refer to the URS.

8.4.1 Aggregate Party Day Charges


This data consists of the following for each settlement run:

Data Item

Definition

BSCCo Ltd Cost Allocation

aj CBSCCOaj

BM Unit Cashflow

ij CBMij

Energy Imbalance Cashflow

aj CAEIaj

Information Imbalance Cashflow

aj CIIaj

Non-Delivery Charge

aj CNDaj

Residual Cashflow Reallocation Charge

aj RCRCaj

System Operator BM Charge

j CSOBMj


8.4.2 Aggregate Party Period Charges


This data consists of the following for each settlement period:

Data Item

Definition

BSCCo Ltd Cost Allocation

a CBSCCOaj

BM Unit Cashflow

i CBMij

Energy Imbalance Cashflow

a CAEIaj

Information Imbalance Cashflow

a CIIaj

Non-Delivery Charge

a CNDaj

Residual Cashflow Reallocation Charge

a RCRCaj


8.4.3 System Period Data


This data includes the following for each settlement period for all Settlement Dates reported:

Data Item

Definition

Period BSCCo Ltd Costs

TCBSCCOj

System Operator BM Cashflow

CSOBMj

Information Imbalance Price 1

IIP1j

Information Imbalance Price 2

IIP2j

System Buy Price

SBPj

System Sell Price

SSPj

Price Derivation Code

PDCj

Total System BM Cashflow

TCBMj

Total System Energy Imbalance Cashflow

TCEIj

Total System Non-Delivery Charge

TCNDj

Total System Accepted Bid Volume

TQABj

System Total Priced Accepted Bid Volume

TQPABj

Total System Energy Contract Volume

a |QABCaj|

Total System Accepted Offer Volume

TQAOj

System Total Priced Accepted Offer Volume

TQPAOj

Total System Energy Imbalance Volume

TQEIj

Residual Cashflow Reallocation Denominator

RCRDj

Total System Residual Cashflow

TRCj

Total System Information Imbalance Charge

TCIIj

Sell Price Price Adjustment

SPAj

Buy Price Price Adjustment

BPAj

Total Period Applicable Balancing Services Volume

TQASj

System Operator Production Imbalance

QAEIaj

System Operator Consumption Imbalance

QAEIaj

Net Imbalance Volume

NIVj

Total NIV Tagged Volume

TCQj

For Settlement Dates prior to the P78 effective date the following data items will also be reported:

Data Item

Definition

Sell Price Cost Adjustment

SCAj

Buy Price Cost Adjustment

BCAj

Sell Price Volume Adjustment

SVAj

Buy Price Volume Adjustment

BVAj

For Settlement Dates prior to the P217 effective date the following data items will also be reported:

Data Item

Definition

System Total Unpriced Accepted Bid Volume

TQUABj

System Total Unpriced Accepted Offer Volume

TQUAOj

NIV Tagged System Total Unpriced Bid Volume

TTQUABj

NIV Tagged System Total Unpriced Offer Volume

TTQUAOj

Net Energy Sell Price Cost Adjustment

ESCAj

Net Energy Buy Price Cost Adjustment

EBCAj

Net Energy Sell Price Volume Adjustment

ESVAj

Net Energy Buy Price Volume Adjustment

EBVAj

Net System Sell Price Volume Adjustment

SSVAj

Net System Buy Price Volume Adjustment

SBVAj

NIV Tagged System Total Unpriced Bid Volume

TTQUABj

NIV Tagged System Total Unpriced Offer Volume

TTQUAOj

NIV Tagged SBVA

TSBVAj

NIV Tagged SSVA

TSSVAj

NIV Tagged Energy Buy Volume Adjustment

NTEBVAj

NIV Tagged Energy Sell Volume Adjustment

NTESVAj

PAR Tagged Energy Buy Volume Adjustment

PTEBVAj

PAR Tagged Energy Sell Volume Adjustment

PTESVAj

Untagged EBCA

UEBCAj

Untagged EBVA

UEBVAj

Untagged ESCA

UESCAj

Untagged ESVA

UESVAj

For Settlement Dates after, and including, the P217 effective date the following data items will also be reported:

Data Item

Definition

Total System Tagged Accepted Bid Volume

TQTABj

Total System Tagged Accepted Offer Volume

TQTAOj

Total System Repriced Accepted Bid Volume

TQRABj

Total System Repriced Accepted Offer Volume

TQRAOj

Total System Originally-priced Accepted Bid Volume

TQOABj

Total System Originally-priced Accepted Offer Volume

TQOAOj

Total System Adjustment Sell Volume

TSVAj

Total System Adjustment Buy Volume

TBVAj

Total System Tagged Adjustment Sell Volume

TSTVAj

Total System Tagged Adjustment Buy Volume

TBTVAj

Total System Repriced Adjustment Sell Volume

TSRVAj

Total System Repriced Adjustment Buy Volume

TBRVAj

Total System Originally-priced Adjustment Sell Volume

TSOVAj

Total System Originally-priced Adjustment Buy Volume

TBOVAj

Replacement Price

RPj

Replacement Price Calculation Volume

RPVj


8.4.4 Account Period Data


Provided for both of the party’s accounts, for each period:

Data Item

Definition

BSCCo Ltd Cost Allocation

CBSCCOaj

Energy Imbalance Charge

CAEIaj

Information Imbalance Charge

CIIaj

Residual Cashflow Reallocation Charge

RCRCaj

Account Bilateral Contract Volume

QABCaj

Account Period Balancing Services Volume

QABSaj

Account Energy Imbalance Volume

QAEIaj

Account Credited Energy Volume

QACEaj

Residual Cashflow Reallocation Proportion

RCRPaj


8.4.5 Account Period BMU Data


Provided for all BM Units for which the party is a subsidiary party:

Data Item

Definition

Credited Energy Volume

QCEiaj

Fixed Metered Volume Reallocation

QMFRiaj

Percentage Metered Volume Reallocation

QMPRiaj


8.4.6 BM Unit Period Data


Provided for all BM Units for which the party is the lead party:

Data Item

Definition

Information Imbalance Cashflow

CIIij

BM Unit Period Non-Delivery Charge

CNDij

Period FPN

FPNij

Period BM Unit Balancing Services Volume

QBSij

Period Information Imbalance Volume

QIIij

Period Expected Metered Volume

QMEij

BM Unit Metered Volume

QMij

Period BM Unit Non-Delivered Bid Volume

QNDBij

Period BM Unit Non-Delivered Offer Volume

QNDOij

Transmission Loss Factor

TLFij

Transmission Loss Multiplier

TLMij

BM Unit Applicable Balancing Services Volume

QASij


8.4.7 Bid-Offer Data


Provided for all bid-offer pairs which were submitted for the period for the BM Unit.

For all Settlement Dates the following data items will be reported:



Data Item

Definition

Bid Price

Pbnij

Offer Price

Ponij

Period BM Unit Total Accepted Bid Volume

QABnij

Period BM Unit Total Accepted Offer Volume

QAOnij

Period BM Unit Bid Cashflow

CBnij

Period BM Unit Offer Cashflow

COnij

For Settlement Dates prior to the P217 effective date the following data items will also be reported:

Data Item

Definition

Period BM Unit Total Priced Accepted Bid Volume

QAPBnij

Period BM Unit Total Priced Accepted Offer Volume

QAPOnij

For Settlement Dates after, and including, the P217 effective date the following data items will also be reported:



Data Item

Definition

Period BM Unit Tagged Bid Volume

QTABnij

Period BM Unit Tagged Offer Volume

QTAOnij

Period BM Unit Repriced Bid Volume

QRABnij

Period BM Unit Repriced Offer Volume

QRAOnij

Period BM Unit Originally-Priced Bid Volume

QOABnij

Period BM Unit Originally-Priced Offer Volume

QOAOnij


8.4.8 MVR Data


For all BM Units for which the party is the lead party, information is provided on the Metered Volume Reallocation to any subsidiary parties in the period as follows:

Data Item

Definition

Credited Energy Volume

QCEiaj

Fixed Metered Volume Reallocation

QMFRiaj

Percentage Metered Volume Reallocation

QMPRiaj


8.4.9 Market Index Data


This data includes the following for each Settlement Period:

Data Item

Definition

Market Index Data Provider

s

Individual Liquidity Threshold

n/a

Market Index Price

PXPsj

Market Index Volume

QXPsj


8.4.10 Balancing Services Adjustment Action Data


Provided for all Settlement Dates after, and including, the P217 effective date:

Data Item

Definition

Balancing Services Adjustment Action Id




Balancing Services Adjustment Action Cost

BSACmj

Balancing Services Adjustment Action Volume

QBSAmj

Tagged Balancing Services Adjustment Action Volume

TQBSAmj

Repriced Balancing Services Adjustment Action Volume

RQBSAmj

Originally-Priced Balancing Services Adjustment Action Volume

OQBSAmj

Balancing Services Adjustment Action SO-Flag





8.4.11 BM Unit Bid-Offer Pair Acceptance Volume Data


Provided for all Settlement Dates after, and including, the P217 effective date:

Data Item

Definition

Bid-Offer Pair Number




Bid-Offer Pair Acceptance Bid Volume

QABknij

Bid-Offer Pair Acceptance Offer Volume

QAOknij


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