High Level MCR Information Relates to Nov 2015 Market Schema Release May prove helpful to Market Participants ahead to the Aug 21 st release of schema details for RoI

2 esbnetworks.ie Content of the Market Release ItemAreaTitle MCR1111Schema ReleaseDebt Flagging MCR1122Schema Release Introduction of essential plant into the Retail Market design MCR1136 Non Schema Release131 MM to be added to Messages Tab on Extranet MCR1151 Non Schema ReleaseAdd the Meter Multiplier and Meter Category code value for each relevant MPRN to the COM_REG and DOM_REG files available on the Secure File Transfer System (SFTS) There is a TIBCO Upgrade Project which is responsible for delivery of components of MCR1111 and MCR1122, in particular The schema changes for 17MMs from MCR1122 New schema Webforms changes to 011/012 Webforms is being replaced by this project Emma replacements TIBCO Upgrade

3 esbnetworks.ie Another MCR – MCR1133 There is a further MCR viz MCR1133 which is also part of the Schema release, even though there are no IT changes It has a tentative link to MCR1111 in that the SFTS that is currently being used for the Metered & SPU Debt Flagging will stop being used for that and start instead to be used for Grouped Unmetered Debt Flagging.

4 esbnetworks.ie Overlaps There is a lot of functionality in this release, its being done in tandem with a rewrite of the Tibco Hub, the EMMAs and the Webforms replacement. It is the first schema release since Harmonisation, the COS processes are being changed significantly with Debt Flagging MCR1111, and 17MMs are being changed for Essential Plant MCR1122 There is a fair bit of overlap between the items, with · the Extranet in both MCR1122 and MCR1136 · the Downloadables in both MCR1122 and MCR1151 (they are different downloadable files) · COS MMs in both MCR1111 and MCR1122 · Service Order related elements in both MCR1111 and MCR1122

5 esbnetworks.ie This slide is copied from the IGG on the 13 th May Market Release 2015 MCR VersionSchema or Non-schema TimelineClarificationAnd, MCR MM to be added to Messages Tab on Extranet 2.0 Non- Schema With Tibco N/AThe 131MM will be available on the Extranet in the same timeline as the Tibco Upgrade MCR1151 Add the Meter Multiplier and Meter Category code to Downloadable Files 2.0 Non- Schema With Tibco N/AThe Meter Multiplier and Meter Category code will be in the scheduled Downloadable files after the Tibco Upgrade ie. December MCR1111 Automated Debt Flagging Solution 3.0 Schema Ver With TibcoIGG 10th April 2013 The Automated Debt Flagging Solution will be enabled in the same timeline as the Tibco Upgrade MCR1122 Introduction of Flag into the Market Design to identify Sites with Essential Plant (EP) 3.0 Schema Ver With TibcoIGG 10th April 2013 The Essential Plant Flag will be in the next scheduled Downloadable files after the Tibco Upgrade ie. December See Next 3 Slides for an indication of the location of the EP flag on three Extranet tabs

6 esbnetworks.ie These are extracts from the minutes from the IGG on the 13 th May T O’Neill gave a presentation on 2 Reads sent in One message and Market Release 2015 which covered both the Schema and Non-Schema releases which are being delivered by ESBN in the same timeline as the Tibco Upgrade Project viz MCR1111,MCR1122, MCR1136 and MCR1151. The specific version of each MCR that is being implemented was highlighted as well as clarifications which had been provided for MCR1111 and MCR1122, the details of which are available on the calendar for the 10th April Changes to the Downloadable files arising from MCR1122 and MCR1151 will be visible from the next scheduled downloadable run after the go live viz in December Extranet changes arising from MCR1122 and MCR1136 will be available from the go-live as will Debt Flagging and Essential Plant Market Messaging functionality. The location on three tabs of the Extranet of where the Essential Plant Flag can appear was presented, noting that the existence of Essential Plant will be shown by ‘YES’ on the Extranet, and not with a value of 1 which is stated in MCR1122 – Refer to slides for full details.

7 esbnetworks.ie What are we testing (1) What to expect 1.That the changes work exactly as written in the MCR (please ensure you have the right version of the MCR or Defect) - Except where a later clarification to the MCR has issued See IGG 10th April 2015 for MCR1111 and MCR1122 Clarifications See IGG 13th May 2015 (EP on Extranet & included in this slide deck) 2. That nothing unrelated to the changes is impacted, it all works as usual

8 esbnetworks.ie MCR1111 – Debt Flagging MCR1111 This is wholly concerned with extensive changes for the new automated Debt Flagging functionality for NQH, QH and SPU

9 esbnetworks.ie MCR1122 – Essential Plant – Changes to 17 MMs MCR1122 – as well as the Data side of this change, there are a lot of Market Messages impacted - overall there are 17 A new Optional Boolean Flag ‘EssentialPlantFlag’ is being added to each of the 17 MMs. All of these 17MMs are outbound from ESBN, so this means that there are no Webforms changes for the EP. MM D 106E W W W W P P 105

10 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM101 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 101New Connection Registration Acceptance 101Top LevelMPRNreqstring11 101MPBusinessReferenceoptstring35 101MeterPointStatusCodereqstring2 101SupplierMPIDoptstring3 101SupplierUnitIDreqstring9Yes 101SSACreqstring1Yes 101SettlementClassCodereqstring1 101ConnectionSystemCodereqstring10 101DUOS_Groupreqstring4 101MaximumImportCapacityoptint9 101MeterConfigurationCodeoptstring10 101LoadFactorCodeoptstring10 101DLF_Codereqstring5 101TransformerLossFactoroptdecimal64 101COT_LE_Flagreqboolean 101MedicalEquipmentDetailsCodeoptstring4 101MaximumExportCapacityoptint9 101RegistrationReceiptDatereqdate 101LoadProfileCodeoptstring3 101EffectiveFromDateoptdate 101KeypadPremisesNumberoptstring19Yes 101 EssentialPlantFlagoptboolean 101ReadFrequencyCodeoptstring3 101ReadCycleoptstring3 101MeterPointAddressreqUnitNooptstring10 NB...More fields follow but are not shown

11 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM101P Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 101PNew Connection Provisional Acceptance 101PTop LevelMPRNreqstring11 101PMPBusinessReferencereqstring35 101PMeterPointStatusCodereqstring2 101PSupplierMPIDoptstring3 101PSupplierUnitIDreqstring9Yes 101PSSACreqstring1Yes 101PSettlementClassCodereqstring1 101PConnectionSystemCodereqstring10 101PDUOS_Groupreqstring4 101PMaximumImportCapacityoptint9 101PMeterConfigurationCodeoptstring10 101PLoadFactorCodeoptstring10 101PDLF_Codereqstring5 101PTransformerLossFactoroptdecimal64 101PCOT_LE_Flagreqboolean 101PMaximumExportCapacityoptint9 101PRegistrationReceiptDatereqdate 101PLoadProfileCodeoptstring3 101P EssentialPlantFlagoptboolean 101PReadFrequencyCodeoptstring3 101PReadCycleoptstring3 101PMeterPointAddressreqUnitNooptstring10 NB...More fields follow but are not shown

12 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM102 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 102Change of Supply Registration Acceptance 102Top LevelMPRNreqstring11 102MPBusinessReferencereqstring35 102MeterPointStatusCodereqstring2 102SupplierUnitIDreqstring9Yes 102SSACreqstring1Yes 102SettlementClassCodereqstring1 102ConnectionSystemCodereqstring10 102DUOS_Groupreqstring4 102MaximumImportCapacityreqint9 102LoadProfileCodeoptstring3 102LoadFactorCodeoptstring10 102MeterConfigurationCodeoptstring10 102DLF_Codereqstring5 102TransformerLossFactoroptdecimal64 102COT_LE_Flagreqboolean 102MaximumExportCapacityoptint9 102ReadFrequencyCodeoptstring3 102ReadCycleoptstring3 102COS_ReadArrangementCodeoptstring3 102RegistrationMeterConfigurationCodeoptstring10 102COS_EstimateAcceptableFlagoptboolean 102ReadReasonCodeoptstring2 102RequiredDateoptdate 102RegistrationReceiptDatereqdate 102LastActualReadDateoptdate 102VCAttributeDeletedoptboolean 102 EssentialPlantFlagoptboolean 102MeterPointAddressreqUnitNooptstring10 NB...More fields follow but are not shown

13 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM102P Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 102PChange of Supplier Provisional Acceptance 102PTop LevelMPRNreqstring11 102PMPBusinessReferencereqstring35 102PMeterPointStatusCodereqstring2 102PSupplierUnitIDreqstring9Yes 102PSSACreqstring1Yes 102PSettlementClassCodereqstring1 102PConnectionSystemCodereqstring10 102PDUOS_Groupreqstring4 102PMaximumImportCapacityoptint9 102PLoadProfileCodeoptstring3 102PLoadFactorCodeoptstring10 102PMeterConfigurationCodeoptstring10 102PDLF_Codeoptstring5 102PTransformerLossFactoroptdecimal64 102PCOT_LE_Flagreqboolean 102PMaximumExportCapacityoptint9 102PCOS_ReadArrangementCodeoptstring3 102PRegistrationMeterConfigurationCodeoptstring10 102PCOS_EstimateAcceptableFlagoptboolean 102PReadReasonCodeoptstring2 102PRequiredDateoptdate 102PRegistrationReceiptDatereqdate 102PLastActualReadDateoptdate 102P EssentialPlantFlagoptboolean 102PReadFrequencyCodeoptstring3 102PReadCycleoptstring3 102PMeterPointAddressreqUnitNooptstring10 NB...More fields follow but are not shown

14 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM105 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 105Change of Supplier Confirmation 105Top LevelMPRNreqstring11 105MPBusinessReferenceoptstring35 105MeterPointStatusCodereqstring2 105SupplierMPIDreqstring3 105SupplierUnitIDreqstring9Yes 105SSACreqstring1Yes 105SettlementClassCodereqstring1 105ConnectionSystemCodereqstring10 105DUOS_Groupreqstring4 105MaximumImportCapacityoptint9 105MICStartDateoptdate 105CurrentChargeableServiceCapacityoptint9 105MeterConfigurationCodeoptstring10 105LoadFactorCodeoptstring10 105DLF_Codereqstring5 105TransformerLossFactoroptdecimal64 105MedicalEquipmentDetailsCodeoptstring4 105MaximumExportCapacityoptint9 105EffectiveFromDatereqdate 105SupplierMPIDOldoptstring3 105KeypadPremisesNumberoptstring19Yes 105 EssentialPlantFlagoptboolean 105ReadFrequencyCodeoptstring3 105ReadCycleoptstring3 105MeterPointAddressreqUnitNooptstring10 NB...More fields follow but are not shown

15 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM106D Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 106DMeter Point Status Confirmation DeEnergisation 106DTop LevelMPRNreqstring11 106DMPBusinessReferenceoptstring35 106DMeterPointStatusCodereqstring2 106DEffectiveFromDatereqdate 106DCommentsoptstring D EssentialPlantFlagoptboolean

16 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM106E Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 106EMeter Point Status Confirmation Energisation 106ETop LevelMPRNreqstring11 106EMPBusinessReferenceoptstring35 106EMeterPointStatusCodereqstring2 106EEffectiveFromDatereqdate 106ECommentsoptstring E EssentialPlantFlagoptboolean

17 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM301 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 301Meter Point Characteristics 301Top LevelMPRNreqstring11 301DLF_Codeoptstring5 301TransformerLossFactoroptdecimal64 301ConnectionSystemCodeoptstring10 301LoadProfileCodeoptstring3 301MaximumImportCapacityoptint9 301MICStartDateoptdate 301CurrentChargeableServiceCapacityoptint9 301CSCStartDateoptdate 301CSC5YrEndDateoptdate 301LoadFactorCodeoptstring10 301MaximumExportCapacityoptint9 301MeterConfigurationCodeoptstring10 301EffectiveFromDatereqdate 301DUOS_Groupoptstring4 301 EssentialPlantFlagoptboolean 301MeterPointAddressreqUnitNooptstring10 301AddrLine1optstring40 301AddrLine2optstring40 301HouseNooptstring10Yes 301Streetoptstring60Yes 301AddrLine4optstring40 301AddrLine5optstring40 301PostCodeoptstring10 301Cityoptstring40 301CountyIrelandoptstring3 301Countryoptstring3

18 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM306 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 306Meter Point Status Change Confirmation DeEnergisation 306Top LevelMPRNreqstring11 306MPBusinessReferenceoptstring35 306NetworksReferenceNumberreqstring35 306LoadProfileCodereqstring3 306DUOS_Groupreqstring4 306MeterPointStatusCodereqstring2 306EffectiveFromDatereqdate 306 EssentialPlantFlagoptboolean 306UsageFactorsoptMTimeslotCodereqstring10 306EffectiveFromDatereqdate 306ActualUsageFactoroptdecimal EstimatedUsageFactoroptdecimal MeterIDreqMMeterCategoryCodeoptstring15 306SerialNumberreqstring9 3062: RegisterLevelInforeqMMeterRegisterSequencereqstring3 306TimeslotCodereqstring10 306UOM_Codereqstring3 306MeterMultiplierreqdecimal ReadingValuereqdecimal ReadReasonCodereqstring2 306ReadTypeCodereqstring2 306PreviousReadDatereqdate 306Consumptionoptdecimal ReadStatusCodereqstring4 306RegisterTypeCodereqstring2

19 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM306W Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 306WMeter Point status Change Deenergisation Withdrawn Read 306WTop LevelMPRNreqstring11 306WMPBusinessReferenceoptstring35 306WNetworksReferenceNumberreqstring35 306WLoadProfileCodereqstring3 306WDUOS_Groupreqstring4 306WMeterPointStatusCodereqstring2 306WEffectiveFromDatereqdate 306WWithdrawalReasonCodereqstring2 306W EssentialPlantFlagoptboolean 306WMeterIDreqMMeterCategoryCodeoptstring15 306WSerialNumberreqstring9 306W2:RegisterLevelInforeqMMeterRegisterSequencereqstring3 306WTimeslotCodereqstring10 306WUOM_Codereqstring3 306WMeterMultiplierreqdecimal WReadingValuereqdecimal WReadReasonCodereqstring2 306WReadTypeCodereqstring2 306WPreviousReadDatereqdate 306WConsumptionoptdecimal WReadStatusCodereqstring4 306WRegisterTypeCodereqstring2

20 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM307 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 307Meter Point Status Change Confirmation Energisation 307Top LevelMPRNreqstring11 307MPBusinessReferenceoptstring35 307NetworksReferenceNumberreqstring35 307LoadProfileCodereqstring3 307DUOS_Groupreqstring4 307MeterPointStatusCodereqstring2 307EffectiveFromDatereqdate 307 EssentialPlantFlagoptboolean 307UsageFactorsoptMTimeslotCodereqstring10 307EffectiveFromDatereqdate 307ActualUsageFactoroptdecimal EstimatedUsageFactoroptdecimal MeterIDreqMMeterCategoryCodeoptstring15 307SerialNumberreqstring9 3072: RegisterLevelInforeqMMeterRegisterSequencereqstring3 307TimeslotCodereqstring10 307UOM_Codereqstring3 307MeterMultiplierreqdecimal ReadingValuereqdecimal ReadReasonCodereqstring2 307ReadTypeCodereqstring2 307PreviousReadDatereqdate 307Consumptionoptdecimal ReadStatusCodereqstring4 307RegisterTypeCodereqstring2

21 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM307W Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 307WMeter Point Status Change Energisation Withdrawn Read 307WTop LevelMPRNreqstring11 307WMPBusinessReferenceoptstring35 307WNetworksReferenceNumberreqstring35 307WLoadProfileCodereqstring3 307WDUOS_Groupreqstring4 307WMeterPointStatusCodereqstring2 307WEffectiveFromDatereqdate 307WWithdrawalReasonCodereqstring2 307W EssentialPlantFlagoptboolean 307WMeterIDreqMMeterCategoryCodeoptstring15 307WSerialNumberreqstring9 307W2: RegisterLevelInforeqMMeterRegisterSequencereqstring3 307WTimeslotCodereqstring10 307WUOM_Codereqstring3 307WMeterMultiplierreqdecimal WReadingValuereqdecimal WReadReasonCodereqstring2 307WReadTypeCodereqstring2 307WPreviousReadDatereqdate 307WConsumptionoptdecimal WReadStatusCodereqstring4 307WRegisterTypeCodereqstring2

22 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM331 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 331Interval Meter Technical Details 331Top LevelMPRNreqstring11 331MPBusinessReferenceoptstring35 331NetworksReferenceNumberoptstring35 331DUOS_Groupreqstring4 331MeterPointStatusCodereqstring2 331EffectiveFromDatereqdate 331MeterConfigurationCodeoptstring EssentialPlantFlagoptboolean 331NewMeterRegistersoptMMeterCategoryCodeoptstring15 331SerialNumberreqstring9 331MeterLocationCodeoptstring3 331ExchangedMeterReferenceoptstring : RegisterChannelInformationreqMMeteringIntervalreqint4 331RegisterTypeCodereqstring2 331UOM_Codereqstring3 331RemovedMeterRegistersoptMMeterCategoryCodeoptstring15 331SerialNumberreqstring9 331ExchangedMeterReferenceoptstring18

23 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM332 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 332Non Interval Technical Meter Details 332Top LevelMPRNreqstring11 332MPBusinessReferenceoptstring35 332NetworksReferenceNumberoptstring35 332LoadProfileCodereqstring3 332DUOS_Groupreqstring4 332MeterPointStatusCodereqstring2 332EffectiveFromDatereqdate 332MeterConfigurationCodereqstring10 332KeypadPremisesNumberoptstring19Yes 332TariffConfigurationCodeoptstring2Yes 332 EssentialPlantFlagoptboolean 332UsageFactorsoptMTimeslotCodereqstring10 332EffectiveFromDatereqdate 332ActualUsageFactoroptdecimal EstimatedUsageFactoroptdecimal RemovedMeterRegistersoptMMeterCategoryCodeoptstring15 332SerialNumberreqstring9 332ExchangedMeterReferenceoptstring : RegisterLevelInfooptMMeterRegisterSequencereqstring3 332TimeslotCodereqstring10 332UOM_Codereqstring3 332MeterMultiplierreqdecimal ReadingValuereqdecimal ReadReasonCodereqstring2 332ReadTypeCodereqstring2 332PreviousReadDatereqdate 332Consumptionoptdecimal PostDecimalDetailsoptstring1Yes 332PreDecimalDetailsoptstring2Yes 332RegisterTypeCodereqstring2 332ReadStatusCodereqstring4 NB...More fields follow but are not shown

24 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM332W Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 332WWithdrawn Read Non Interval Meter Technical Details 332WTop LevelMPRNreqstring11 332WMPBusinessReferenceoptstring35 332WNetworksReferenceNumberreqstring35 332WLoadProfileCodereqstring3 332WDUOS_Groupreqstring4 332WMeterPointStatusCodereqstring2 332WEffectiveFromDatereqdate 332WMeterConfigurationCodereqstring10 332WWithdrawalReasonCodereqstring2 332WTariffConfigurationCodeoptstring2Yes 332WKeypadPremisesNumberoptstring19Yes 332W EssentialPlantFlagoptboolean 332WRemovedMeterRegistersoptMMeterCategoryCodeoptstring15 332WSerialNumberreqstring9 332WExchangedMeterReferenceoptstring18 332W2:RegisterLevelInforeqMMeterRegisterSequencereqstring3 332WTimeslotCodereqstring10 332WUOM_Codereqstring3 332WMeterMultiplierreqdecimal WReadingValuereqdecimal WReadReasonCodereqstring2 332WReadTypeCodereqstring2 332WPreviousReadDatereqdate 332WConsumptionoptdecimal WPostDecimalDetailsoptstring1Yes 332WPreDecimalDetailsoptstring2Yes 332WRegisterTypeCodereqstring2 332WReadStatusCodereqstring4 NB...More fields follow but are not shown

25 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM700 Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 700Unmetered Characteristics 700Top LevelMPRNreqstring11 700GroupedMPRNoptstring11 700LoadProfileCodereqstring3 700DUOS_Groupreqstring4 700MeterPointStatusCodereqstring2 700MeterConfigurationCodereqstring10 700NetworksReferenceNumberreqstring35 700TransactionReasonCodereqstring3 700MaximumImportCapacityreqint9 700PSOExemptionFlagoptboolean 700EffectiveFromDatereqdate 700ActualUsageFactorreqdecimal EssentialPlantFlagoptboolean 700MeterPointAddressreqUnitNooptstring10 700AddrLine1optstring40 700AddrLine2optstring40 700HouseNooptstring10Yes 700Streetoptstring60Yes 700AddrLine4optstring40 700AddrLine5optstring40 700PostCodeoptstring10 700Cityoptstring40 700CountyIrelandoptstring3 700Countryoptstring3 700ConsumptionDetailreqMConsecutiveNumberreqint2 700UnmeteredTypeCodereqstring8 700InstalledValuereqdecimal BillingValuereqdecimal UOM_Codereqstring3 700RepetitionFactorreqint4

26 esbnetworks.ie EP on 17 MMs MCR1122 This is an indication of where to see the EP on MM700W Market Message SegmentSeg UseData ItemUseTypeLength (Fixed) Max Length (Variable) Min Length ( Variable) Digits (Total) Digits (Post- Decimal) Pattern 700WUnmetered Characteristics Withdrawal 700WTop LevelMPRNreqstring11 700WGroupedMPRNoptstring11 700WLoadProfileCodereqstring3 700WDUOS_Groupreqstring4 700WMeterPointStatusCodereqstring2 700WMeterConfigurationCodereqstring10 700WNetworksReferenceNumberreqstring35 700WTransactionReasonCodereqstring3 700WMaximumImportCapacityreqint9 700WPSOExemptionFlagoptboolean 700WEffectiveFromDatereqdate 700WWithdrawalReasonCodeoptstring2 700W EssentialPlantFlagoptboolean 700WMeterPointAddressreqUnitNooptstring10 700WAddrLine1optstring40 700WAddrLine2optstring40 700WHouseNooptstring10Yes 700WStreetoptstring60Yes 700WAddrLine4optstring40 700WAddrLine5optstring40 700WPostCodeoptstring10 700WCityoptstring40 700WCountyIrelandoptstring3 700WCountryoptstring3 700WConsumptionDetailreqMConsecutiveNumberreqint2 700WUnmeteredTypeCodereqstring8 700WInstalledValuereqdecimal WBillingValuereqdecimal WUOM_Codereqstring3 700WRepetitionFactorreqint4

27 esbnetworks.ie Downloadable Files 5.csv filesCOM_regdom_regdomS-custcomm_custunmt_cust Is this file being Changed?MCR1151 YES No Is this file being Changed?MCR1122No YES MCR1151 (high level extract – see text for full details) Currently the COM_REG and DOM_REG files made available on the SFTS do not contain the Meter Multiplier or the Meter Category consistently across both of these files. The objective of this MCR is that a supplier should be able to obtain the Meter Category and Meter Multiplier within both the COM_REG and DOM_REG files. MCR1122 (high level extract – TON can get further info as required) The content of the flag will be made available to Suppliers on the Extranet and the Downloadable Meter Point Details file. On the Downloadable Meter Point Details files this field will be made available in the Commercial and Unmetered extracts and directly after the MIC field. Where this flag appears with a value of 1 on the Extranet or the Downloadable Meter Point Details file it will mean that there is essential plant at this MPRN. It is not proposed to populate a value of 0 on the Extranet for MPRNs

28 esbnetworks.ie Extranet MCR MM to be added to Messages Tab on Extranet (high level extract – see text for full details) The existing Messages tab will be enhanced to display relevant 131 MM Work Status messages when either the "All" check box or the "Meter Works" check box is selected MCR1122 – Essential Plant (extract) The content of the flag will be made available to Suppliers on the Extranet and the Downloadable Meter Point Details file. Where this flag appears with a value of 1 on the Extranet or the Downloadable Meter Point Details file it will mean that there is essential plant at this MPRN. It is not proposed to populate a value of 0 on the Extranet for MPRNs Comment: the exact location of the new field on the Extranet will be communicated throughout the implementation phase. This was done - see next 3 slides from IGG 13 th May 2015

29 esbnetworks.ie This slide is copied from the IGG on the 13 th May Extranet – Essential Plant Flag MCR MPRN Enquiry tab MPRN Enquiry tab In the section Meter Point Status, a new field 'Essential Plant‘ will be added under the field Trading Site Flag. This new field will either be blank or populated with YES.

30 esbnetworks.ie This slide is copied from the IGG on the 13 th May Extranet – Essential Plant Flag MCR1122 – TMPRN Technical Unmetered MPRN (TMPRN) : MPRN Enquiry tab In the section under TMPRN Status, a new field 'Essential Plant‘ will be added under the field ‘Meter Point Status’. This new field will either be blank or populated with YES.

31 esbnetworks.ie This slide is copied from the IGG on the 13 th May Extranet – Essential Plant Flag MCR New Connections tab New Connections tab In the section Meter Point Status, a new field 'Essential Plant‘ will be added under the field Trading Site Flag. This new field will either be blank or populated with YES.

32 esbnetworks.ie Final points that may be of use It can be confirmed that schema version will be the same format and structure as schema version A new attribute EssentialPlantFlag has been defined in the DataDefinition.xsd It is linked to an existing type – Flag_Type, it inherits the Flag_Type attributes, e.g. Boolean. Now that it is defined it can be added into the relevant messages. Schema validation is now centralised on the Hub, but Suppliers will still need the Schema to update their own backend systems to correctly make the relevant messages with the new fields included. It is currently ESBN’s intention to release the Schema on 21 st August. Footer