Closing date for submissions 5pm Thursday 8 May 2025
The System Operator is required to review the Ancillary Services Procurement Plan (Procurement Plan) at least every two years and consult on the recommended changes.
The Procurement Plan covers the five ancillary services including frequency keeping, instantaneous reserve, over frequency reserve, black start, and voltage support.
It primarily:
- specifies the principles the System Operator must apply in assessing what and how much ancillary services to procure;
- contains a methodology for making that assessment;
- outlines the process for procurement of ancillary services; and
- outlines the technical requirements and key contracting terms the System Operator will apply in entering into contracts for ancillary services.
We are proposing a range of amendments across all services, which are described in the accompanying consultation document and proposed draft Procurement Plan.
Our consultation period opened on Thursday 17 April 2025 with submissions due by 5pm on Thursday 8 May 2025. This is followed by a one week period for cross submissions which will be due by 5pm on Thursday 15 May 2025.
Consultation Documents
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Ancillary Services Procurement Plan 2025_CLEAN.pdf (PDF 660.85 KB)Ancillary Services Procurement Plan 2025_CLEAN.docx (DOCX 196.65 KB)
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Ancillary Services Procurement Plan 2025_tracked changes.pdf (PDF 763.25 KB)Ancillary Services Procurement Plan 2025_tracked changes.docx (DOCX 226.13 KB)
The current version of the Procurement Plan, approved on 3 May 2022, is available here.
Submit your Feedback
We invite participants to submit their comments on the proposed changes to the Procurement Plan.
Please send your submission to [email protected] by 5:00pm on Thursday 8 May 2025.