2025 Determination of the Benchmark Capacity Providers
The Coordinator of Energy (Coordinator) has determined, under clause 4.16.11 of the Electricity System and Market (ESM) Rules, the Benchmark Capacity Providers. In accordance with clause 4.16.12 of the ESM Rules, the Coordinator has determined that:
1. The Benchmark Peak Capacity Provider will be a lithium battery energy storage system with:
- 200 MW injection
- 1200 MWh energy storage
- A 330 kV connection at a location determined by the ERA.
2. The Benchmark Flexible Capacity Provider will be a lithium battery energy storage system:
- 200 MW injection
- 1200 MWh energy storage
- A 330 kV connection at a location determined by the ERA.
3. Benchmark Reserve Capacity Prices will be determined on a gross Cost of New Entry basis.
The Coordinator's 2025 Determination of the Benchmark Capacity Providers can be found below.
2025 Review of Benchmark Capacity Providers - Coordinator of Energy Determination.
On 10 October 2025, the Coordinator published an Addendum to this Determination. This Addendum determines the network location to be used by the ERA in setting the Peak and Flexible BRCPs.
The Coordinator has determined that the network location for both the Peak and Flexible Benchmark Capacity Providers is to be:
- a 330 kV connection located on the Clean Energy Link – North.
The Coordinator’s Addendum to the 2025 Determination of the Benchmark Capacity Providers can be found below.
2025 Review of Benchmark Capacity Providers – Coordinator of Energy Determination - Addendum
2023 Determination of the Benchmark Capacity Providers
The Coordinator of Energy (Coordinator) has determined, under clause 4.16.11 of the Electricity System and Market (ESM) Rules, the Benchmark Capacity Providers. In accordance with clause 4.16.12 of the ESM Rules, the Coordinator has determined:
1. The Benchmark Peak Capacity Provider will be a lithium battery energy storage system with:
- 200 MW injection
- 800 MWh energy storage
- A 330 kV connection near Kwinana or Pinjar.
2. The Benchmark Flexible Capacity Provider will be a lithium battery energy storage system:
- 200 MW injection
- 800 MWh energy storage
- A 330 kV connection near Kwinana or Pinjar.
3. Benchmark Reserve Capacity Prices will be determined on a gross CONE basis.
The Coordinators 2023 Determination of the Benchmark Capacity Providers may be found below.
Coordinator of Energy Determination - Benchmark Capacity Providers
Market Surveillance Data Catalogue Requirements List
Clause 2.16.2A of the ESM Rules requires the Coordinator and the Economic Regulation Authority (ERA) to:
- Develop and provide to AEMO a list of data items that must be included by AEMO in the Market Surveillance Data Catalogue (MSDC requirements list); and
- Publish a list which contains the MSDC requirements list along with a list of ESM Rules that the ERA requires AEMO to monitor for compliance.
Under clause 2.16.2B, AEMO is required to provide the Coordinator and the ERA with access to all data items in the MSDC requirements list.
The initial combined list was provided to AEMO on 19 September 2023. The current list was provided to AEMO on 13 November 2024.
Market Surveillance Data Catalogue and AEMO Compliance Monitoring Requirements List
NCESS Determinations
The Non-Cooptimised Essential System Services (NCESS) Framework has been implemented to enable the Australian Energy Market Operator, a Network Operator, or the Coordinator of Energy (Coordinator) to identify and justify the need for an ESS not already available through existing market mechanisms and procure those services in a transparent and efficient manner.
The Electricity System and Market (ESM) Rules outline the process by which the three entities may seek to trigger the NCESS procurement process.
Under section 3.11A of the ESM Rules, the Coordinator must consider a range of factors in determining whether to trigger an NCESS procurement and must publish a determination.
Any determinations by the Coordinator to trigger, or not to trigger, the NCESS procurement process, and any supporting submissions, analysis and studies may be found below.
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