Guides and useful information

These documents will help you become familiar with the Wholesale Electricity Market (WEM).

For information relating to reports and web services refer to the Reports and Web Service Specifications page.
For information relating to Settlement Statements and Invoices, refer to the Settlement Technical Guides page.

Wholesale Electricity Market Design

08/09/2023
WEM Reform Design Summary
3.34 MB

User guides

Current versions

26/09/2023
AEMO – Commissioning Test Plan User Guide – Version 2
Effective October 2023
1.01 MB
23/08/2023
WEMS MPI User Management User Guide - Version 1
Effective August 2023
714.81 KB
23/08/2023
Generator Performance Standards User Guide - Version 1
Effective August 2023
1.39 MB
23/08/2023
Real-Time Market Submissions User Guide - Version 1
Effective August 2023
897.56 KB
14/08/2023
AEMO - Prudential and Settlements Services User Guide - Version 1
Effective August 2023
1.92 MB
11/08/2023
AEMO - Outage Management System User Guide - Version 1.2
Effective August 2023
1.17 MB
11/08/2023
AEMO - Registration User Guide - Version 1
Effective August 2023
2.83 MB
11/08/2023
AEMO - Reserve Capacity Mechanism User Guide - Version 1
Effective August 2023
1.64 MB
11/08/2023
AEMO - Short Term Energy Market User Guide - Version 1
Effective August 2023
2.29 MB
27/07/2023
WEMS Registration Technical Guide v4.1
Effective July 2023
1.13 MB

Historical versions

Fact sheets

02/10/2023
WEM Credit Support Fact Sheet
165.88 KB

Guidelines

Specifications

WEM and GBB (WA) participant support guide

03/10/2023
AEMO WEM and GBB WA Participant Support Guide v5.0
255.3 KB

Operational contingencies

Frequently asked questions

18/08/2017
AEMO Theoretical Energy Schedule FAQ v1.2
754.82 KB

To view the current Registration Fees, please visit the fees and charges page

Original market design

File exchange csv templates

The following templates are provided to help Market Participants make submissions in the Wholesale Electricity Market System (WEMS) Market Participant Interface (MPI):

ElectricityWholesale Electricity MarketRegistration

Guides and useful information

Wholesale Electricity Market Design

WEM Reform Design Summary

User guides

Current versions

AEMO – Commissioning Test Plan User Guide – Version 2

WEMS MPI User Management User Guide - Version 1

Generator Performance Standards User Guide - Version 1

Real-Time Market Submissions User Guide - Version 1

AEMO - Prudential and Settlements Services User Guide - Version 1

AEMO - Outage Management System User Guide - Version 1.2

AEMO - Registration User Guide - Version 1

AEMO - Reserve Capacity Mechanism User Guide - Version 1

AEMO - Short Term Energy Market User Guide - Version 1

WEMS Registration Technical Guide v4.1

Historical versions

AEMO - WEMS MPI User Guide v6.23

WEMS MPI User Guide v6.22

WEMS Registration Technical Guide v3.10

Market participant administrator guide v3

Fact sheets

WEM Credit Support Fact Sheet

Guidelines

Power System Stability Guideline

Frequency Co-optimised Essential System Services Testing Guideline

Guideline: Cleansing of generation facility MWH output data

Participation Guideline for Energy Storage Systems in the WEM

Technical Specification Operational Data Points for Generating Plant

Specifications

WEMS Report and Web Services Specification v3.15

WEMS Submission Specifications v6.13

WEMS Submission Validation v5.6

WEM and GBB (WA) participant support guide

AEMO WEM and GBB WA Participant Support Guide v5.0

Operational contingencies

AEMO WEM Operational Contingencies v31

Operational financial contingency

Frequently asked questions

AEMO Theoretical Energy Schedule FAQ v1.2

Original market design

The South West interconnected System Wholesale Electricity Market: An overview

WEM design summary v1.4

Renewable energy generators and demand side management

File exchange csv templates

bilateral

resources_participant_details

resources_facility_details

stem_demand_portfolio_curve

resources_synchronisation

stem_ancillary_service

stem_facility_detail

stem_supply_portfolio_curve

balancingvariation

loadfollowingvariation

balancingstanding

loadfollowingstanding