Assignment of Capacity Credits

Capacity Credits are assigned to Facilities following trade declarations and the determination of Network Access Quantities. Capacity Credits are capped at the network access quantities.

This page provides historical information on Capacity Credits. Please refer to the Market Data Site for information on Capacity Credits assigned for the 2024 Reserve Capacity Cycle.

Capacity Credits assigned since market start

The number of Capacity Credits assigned to each Facility from market start is available below and can be found on the Market Data Site.

Capacity Credits assigned by Capacity Year

The number of Capacity Credits assigned to each Facility from market start to the 2023 Reserve Capacity Cycle are available below.

Cancellation of Capacity Credits

AEMO must publish the information specified in clauses 4.20.12(a), 4.20.12(c) and 4.20.12(d) of the WEM Rules after deciding (in accordance with clause 4.20.11) to cancel the Capacity Credits assigned to a new Facility that is yet to enter service. The basis for a decision under clause 4.20.11 is that no capacity associated with the Capacity Credits assigned to the new Facility will be made available to the market for an entire Capacity Year. 

AEMO cancelled the Capacity Credits for the 2022-2023 and 2023-2024 Capacity Years in accordance with clause 4.20.11 for the following Facilities:

Reserve Capacity Facility status

For more information about AEMO’s assessment of a Facility's Reserve Capacity status please see WEM Procedure: Declaration of Bilateral Trades. 

Progress Reports 

In accordance with clause 4.27.10 of the WEM Rules Market Participants holding Capacity Credits for Facilities that are yet to commence operation must file a report on progress with AEMO, at least: 

• Once every three months from the date Capacity Credits are confirmed under MR 4.20.5A; and 
• Once every month between the start of the calendar year in which the date referred to in MR 4.10.1(c)(iii)(7) falls, and the date AEMO notifies the Market Participant, under 4.13.14, that the need to maintain Reserve Capacity Security of the Facility has ceased. 

Reports provided must include any changes to Key Project Dates.  

Further information regarding Progress Reports please visit Market Procedure: Reserve Capacity Performance Monitoring. The report template can be found below:

Government policy on capacity credits

In 2006, the Minister for Energy issued a Ministerial Direction that limited Synergy's (then Verve Energy) generation nameplate capacity. This direction was replaced in 2016, requiring Synergy to reduce its generation capacity (excluding renewable capacity) by 1 October 2018. The latest Ministerial Direction can be found below.