Guides and useful information
These documents will help you become familiar with the Wholesale Electricity Market (WEM).
Wholesale Electricity Market Design
User guides
Current versions
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29/02/2024
AEMO - Reserve Capacity Mechanism User Guide - Version 2
Effective February 2024
1.84 MB -
02/01/2024
AEMO - Prudential and Settlements Services User Guide - Version 1,1
Effective January 2024
1.87 MB -
10/01/2024
Summary of APIM API Endpoints in the WEM
Effective January 2024
508.69 KB -
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 -
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 - 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
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11/08/2023
AEMO - Reserve Capacity Mechanism User Guide - Version 1
Effective August 2023
1.64 MB -
14/08/2023
AEMO - Prudential and Settlements Services User Guide - Version 1
Effective August 2023
1.92 MB -
29/05/2023
AEMO - WEMS MPI User Guide v6.23
Effective May 2023
13.62 MB -
31/03/2023
WEMS MPI User Guide v6.22
Effective April 2023
12.55 MB -
01/02/2021
WEMS Registration Technical Guide v3.10
Effective January 2021
763.2 KB -
13/04/2023
Market participant administrator guide v3
302.26 KB
Fact sheets
Guidelines
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29/09/2023
Power System Stability Guideline
505.34 KB -
15/10/2021
Frequency Co-optimised Essential System Services Testing Guideline
550.54 KB -
28/12/2018
Guideline: Cleansing of generation facility MWH output data
384.23 KB -
06/06/2019
Participation Guideline for Energy Storage Systems in the WEM
315.54 KB -
16/06/2022
Technical Specification Operational Data Points for Generating Plant
523.37 KB
WEM and GBB (WA) participant support guide
Operational contingencies
Frequently asked questions
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):
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06/07/2016
bilateral
159 B -
06/07/2016
resources_participant_details
178 B -
06/07/2016
resources_facility_details
94 B -
06/07/2016
stem_demand_portfolio_curve
50 B -
06/07/2016
resources_synchronisation
30 B -
06/07/2016
stem_ancillary_service
75 B -
06/07/2016
stem_facility_detail
102 B -
06/07/2016
stem_supply_portfolio_curve
125 B -
06/07/2016
balancingvariation
149 B -
06/07/2016
loadfollowingvariation
99 B -
06/07/2016
balancingstanding
159 B -
06/07/2016
loadfollowingstanding
109 B