Retail Market Improvements

ICF_054

Substitution A process undertaken for the replacement of missing (null) or erroneous accumulated metering data or interval metering data where metering data has failed Validation. type approvals associated with small market Energy Rules Terms Interval Period over which interval energy data is recorded by the metering installation that corresponds to a TI or submultiples of a TI. Metering have risen dramatically from affected FRMPs, ENLRs and LNSPs. This project aims to reduce exceptions and administration for small market Interval Metering stakeholders when handling Metering Data.

These approvals are required when the MDP Meter Data Provider. An organisation which installs, commissions, gathers, and verifies data remotely from meters in the National Electricity Market (NEM). intends to apply the Type 16 Agreed Method The allowed operation for a resource, e.g. GET, POST, PUT, DELETE, and so on. These operations determine whether you’re reading information, creating new information, updating existing information, or deleting information.. When applied, the underlying cause of the Substitution is not transparent to recipients as it is difficult to distinguish between an applied substitution provided due to crossed meters or failed phase on 3 phase supply.

The affected stakeholders include:

MDPs sending Substitution Types and Reason Codes in Transactions.
AEMO Australian Energy Market Operator, FRMPs, ENLRs, and LNSPs receiving the Substitution Types and Reason Codes in Transactions.

ICF_072

AEMO’s Meter Data Management (MDM Meter Data Management system includes the Profile Preparation Service, Basic Meter Profiling, and Data Aggregation.) system generates the following load profiles, to support market settlement processes:

Five-Minute Load Profiles (5MLP Five-minute Load Profile), which is used to convert 30-minute and 15-minute interval metering data into 5-minute trading intervals.
The Net System Load Profiles (NSLP Net System Load Profile. A profile applied to convert all second-tier basic meter readings into energy consumption for each 30-minute trading interval for settlement purposes.), which is used to convert accumulation (basic meter) reads, that typically account for consumption over a 90-day period, into 5-minute trading intervals.

In recent years, NSLP trading interval Energy Rules Terms values have substantially reduced. When positive and negative NSLP trading interval values are present, significant fluctuations, or spikes, are observed when the NSLP is applied to accumulation metering data. These spikes are a consequence of having a small denominator value in the profiling algorithm.

The profiled energy would correctly sum to the original metering data. However, the profiled values may not be representative.

AEMO is working on a selection of NSLP Floor Values to eliminate spikes in the Profiling Algorithm.

The affected stakeholders include:

FRMPs and ENLRs

High-level changes

Function	Enhancement	Description	Reference	Impacted	MSATS functionality
Accumulation Meter Reads	ICF_072	Reads into 5-minute Trading Intervals	Net System Load Profile Methodology (NSLP)	ENLR FRMP	B2M – CATS
Meter Type Accumulation – – Net System Load Profile	ICF_072	NSLP Floor value	Net System Load Profile Methodology (NSLP)	ENLR FRMP	B2M – CATS
MTRD Transactions	ICF_054	New Substitution Types Removed Substitution Types New Reason Codes	MTRD Transactions B2B and B2M	ENLR FRMP LNSP MDP	MDM
MDFF NEM12 & NEM13 v2.6	ICF_054	New Reason Codes	New MSATS reason codes	MDP	B2B
New validation rules	ICF_054	None	Validation Rules	ENLR FRMP LNSP LRs MDP	B2B B2M
NSLP Trading Intervals	ICF_072	NSLP Floor value	Net System Load Profile Methodology (NSLP)	ENLR FRMP	B2M – CATS
Profile Area	ICF_072	Non-zero NSLP Floor value	Net System Load Profile Methodology (NSLP)	ENLR FRMP	B2M – CATS
Reason codes	ICF_054	10 new Reason Codes	Reason Codes	ENLR FRMP LNSP MDP	B2M
Substitution types	ICF_054	New Substitution Types Removed Substitution Types	Substitution Types	ENLR FRMP LNSP MDP	B2B B2M
C1 report	ICF_072	NSLP_FLOOR_VALUE query to support the NSLP methodology	C1 Report	FRMP	B2M – CATS
RM29 report	ICF_054	RM29 report includes a new SDQ query	RM29 Participant Standing Data Report	MDP	B2B B2M