Validation Rules
AEMO Australian Energy Market Operator validates the meter exemption request and associated NMIs at different stages of the processing workflow.
Validations after meter exemption creation
The table below describes validations after a meter exemption is created
|
Validation |
Status |
Reason |
|---|---|---|
|
Requesting participant is not the active RP (MC) for the NMI |
NMI status is set to Rejected |
Participant is not the MC |
|
NMI does not exist in MSATS |
NMI status is set to Rejected |
Unknown NMI |
|
NMI has a status of X (extinct) in the NMI standing data |
NMI status is set to Rejected |
Extinct NMI |
|
NMI has a status of N (non market) in the NMI standing data |
NMI status is set to Rejected |
Non-market NMI |
|
NMI is assigned to another exemption in an Active or New status |
NMI status is set to Rejected |
NMI is already exempt |
|
The NMI is excluded without any error message |
NMI status is set to Rejected |
Duplicate NMI within an exemption list |
|
Exemption is rejected |
Exemption status is set to Rejected |
All assigned NMIs are rejected |
Validations for exemptions in review
The following table describes validations when processing exemptions in the For Review status.
|
Validation |
Status |
Reason |
|---|---|---|
|
The substitution method is not provided |
More Info |
Substitution Required value is Y, but the Substitution Method is not provided |
|
The NMI has previously been exempted for the same exemption category and exemption type for the same MC within a configured period |
Rejected |
Previously exempt NMIs for the same exemption category and type |
|
Reject NMIs that recently had an exemption |
Rejected |
An extension is not allowed for: - FAMILY type if the NMI is previously exempt in the last 365 days - LV_CT_NMI, LV_CT_NMI, or WC_NMI types if the NMI is previously exempt in the last 62 days |
|
The NMI has a CT exemption type and the active metering installation does not have current ratio values |
Rejected |
Current ratio values are not populated for the NMI in the exemption |
|
The NMI has an HV exemption type and the active metering installation does not have current ratio and voltage ratio values |
Rejected |
Current ratio and voltage ratio values are not populated for the NMI in the exemption |
|
NMI action provided is not valid for Meter Exemption status |
Rejected |
Invalid meter exemption NMI Action |
Automated processing validations
|
Validation |
Status |
Reason |
|---|---|---|
|
Exemption includes NMI with invalid MITC |
For Review |
The NMI’s Meter Installation Type Code (MITC) is COMMS1, COMMS2, COMMS3, COMMS4, COMMS8, COMMS9, or COMMS9CM |
|
Exemption includes Participant ID flags to not allow automated processing |
For Review |
AEMO to manually review exemptions for certain Participant IDs |
|
The exemption’s end date exceeds the duration for the automated exemption type |
More Info |
Family Failure exemptions can have an extension for 70 business days. Individual NMIs can have a 15-day extension |
|
An exemption with More Info status is not updated within 25 calendar days |
Rejected |
The exemption is not updated in the required timeframe |
|
The exemption is sent for an extension |
Rejected |
An extension is not allowed for meter malfunctions for FAMILY, WC_NMI, LV_CT_NMI types, and HV_NMI types with COMMS and METER nature values |
|
The exemption is automatically approved |
Active |
The exemption matches the required category, type, and nature values |