Market Messages
The Retail Electricity Market Design has 93 market messages which are sent as XML messages over the internet. The Market Messages cover the following areas:
- COS (Change of Supplier)
- Customer Data
- DA & DP (Data Aggregation and Data Processing)
- DUOS (Distribution Use Of System)
- Meter works
- New connections
- Unmetered
ESB Networks have provided software for the messaging solution. The Electricity Market Messaging Application (EMMA) sends and receives messages. Webforms are used to create market participant messages and the readings processor converts readings messages to legacy formats.
| MESSAGE NO. | MESSAGE DESCRIPTION | MARKET MESSAGE GUIDE APPLICABLE |
|---|---|---|
| 010 | Registration Request | Meter Registration |
| 011 | Cancel Registration Request | Meter Registration |
| 011A | Cancel Change of Supplier Agreement | Meter Registration |
| 012 | Objection of Change of Supplier | Meter Registration |
| 012W | Withdrawal of Objection of Change of Supplier | Meter Registration |
| 013 | Customer Details Change | Customer Data and Agreements |
| 014R | Customer Details Rejection | Customer Data and Agreements |
| 015 | Change of SSAC and or Supplier Unit | Data Aggregation |
| 016 | Change Of Legal Entity | Customer Data and Agreements |
| 017 | Meter Point Status Change Request | Meter Works |
| 021 | De-Registration Request | Meter Registration |
| 030 | MeterWorks Request | Meter Works |
| 101 | New Connection Registration Acceptance | Meter Registration |
| 101P | New Connection Provisional Acceptance | Meter Registration |
| 101R | New Registration Rejection | Meter Registration |
| 102 | Change of Supply Registration Acceptance | Meter Registration |
| 102P | Change of Supplier Provisional Acceptance | Meter Registration |
| 102R | Change of Supplier Registration Rejection | Meter Registration |
| 105 | Change of Supplier Confirmation | Meter Registration |
| 105L | Change Of Supplier Confirmation Customer Loss | Meter Registration |
| 106D | Meter Point Status Confirmation DeEnergisation | Meter Works |
| 106E | Meter Point Status Confirmation Energisation | Meter Works |
| 110 | Notification to Old Supplier of CoS | Meter Registration |
| 111 | Registration Cancellation | Meter Registration |
| 111A | Change of Supplier Cancellation Notification | Meter Registration |
| 111L | Registration Cancellation Customer Loss | Meter Registration |
| 111R | Change of Supplier Cancellation Rejection | Meter Registration |
| 112 | Notification of Objection | Meter Registration |
| 112R | Notification of Objection Rejection | Meter Registration |
| 112W | Withdrawal of Objection | Meter Registration |
| 114 | Change of Customer Details Confirmation | Customer Data and Agreements |
| 115 | Change of SSAC and or Supplier Unit Confirmation | Data Aggregation |
| 115R | Change of SSAC and or Supplier Unit Rejection | Data Aggregation |
| 116 | CoLE Confirmation | Customer Data and Agreements |
| 116A | Change Of Legal Entity Confirmation | Customer Data and Agreements |
| 116N | CoLE Notification | Customer Data and Agreements |
| 116R | CoLE Rejection | Customer Data and Agreements |
| 117D | Change In Energisation Status Delay | Meter Works |
| 117R | Meter Point Status Request Rejection | Meter Works |
| 122 | DeRegistration Confirmation | Meter Registration |
| 122R | DeRegistration Rejection | Meter Registration |
| 130D | MeterWorks Request Delayed | Meter Works |
| 130R | MeterWorks Request Rejection | Meter Works |
| 131 | Work Status | Meter Works |
| 137R | Rejection Of Appointment | Meter Works |
| 208 | Replacement Reading | Data Processing |
| 210 | Supplier Provided Reading | Data Processing |
| 252 | Request for Special Reading | Data Processing |
| 260 | Observation of Problem Damage or Tampering | Meter Works |
| 261 | Resolution of Problem Damage or Tampering | Meter Works |
| 300 | Validated Non Interval Readings Scheduled | Data Processing |
| 300S | Validated Non Interval Readings Special | Data Processing |
| 300W | Withdrawn Non Interval Readings | Data Processing |
| 301 | Meter Point Characteristics | Meter Works |
| 301N | Proposed Meter Point Characteristics | Meter Works |
| 303R | Customer Read Rejection | Data Processing |
| 305 | Non Settlement Estimates | Data Processing |
| 306 | Meter Point Status Change Confirmation DeEnergisation | Meter Works |
| 306W | Meter Point status Change DeEnergisation Withdrawn Read | Meter Works |
| 307 | Meter Point Status Change Confirmation Energisation | Meter Works |
| 307W | Meter Point Status Change Energisation Withdrawn Read | Meter Works |
| 308 | Non Interval Load Factor Reading Exception | Data Processing |
| 310 | Validated CoS Reading | Meter Registration |
| 310W | Withdrawn CoS Reading | Meter Registration |
| 311 | Meter Problems | Meter Works |
| 320 | Validated CoS Reading | Meter Registration |
| 321 | Read Cycle Notification | Data Processing |
| 322 | DUoS Billing Cycle Notification | Data Processing |
| 330 | Non Interval To Interval Change | Meter Works |
| 331 | Interval Meter Technical Details | Meter Registration |
| 332 | Non Interval Technical Meter Details | Meter Registration |
| 332W | Withdrawn Read Non Interval Meter Technical Details | Meter Works |
| 341 | Import Interval Meter Daily Readings | Data Processing |
| 342 | Export Interval Meter Daily Readings | Data Processing |
| 343 | SMART Import Interval Meter Daily Readings | Data Processing |
| 345 | SMART HH Cumulative Register Readings | Data Processing |
| 352R | Special Reading Request Rejection | Data Processing |
| 507 | Designated DUoS Payment Dispute | DUoS |
| 507C | Designated DUoS Payment Dispute Control | DUoS |
| 591 | Non Interval Aggregation | Data Aggregation |
| 592 | SMART Interval Import Aggregation | Data Aggregation |
| 594 | Part GU Aggregation | Data Aggregation |
| 595 | Interval Import Aggregation | Data Aggregation |
| 596 | Supplier Copy SMO | Data Aggregation |
| 597 | Generator Copy SMO | Data Aggregation |
| 598 | Non Part GU Aggregation | Data Aggregation |
| 601 | Rejection To Invalid Message | Market Gateway Activity |
| 602 | Daily Summary Reconciliation Count | Market Gateway Activity |
| 700 | Unmetered Characteristics | Unmetered |
| 700W | Unmetered Characteristics Withdrawal | Unmetered |
| 701 | Unmetered Consumption | Unmetered |
| 701W | Unmetered Consumption Withdrawal | Unmetered |