The Australian Energy Market Operator (AEMO) is conducting a consultation on the Market Ancillary Service Specification (MASS) with regards to measurements requirements for DERs to participate in the Contingency Frequency Control Ancillary Services (FCAS) markets. AEMO is also taking this opportunity to consult on other important issues in a ‘General MASS Review’ and to undertake a simplification and clarification of the MASS document.
This consultation is being conducted in compliance with clause 3.11.2(d) of the National Electricity Rules (NER) which requires AEMO to “comply with the Rules consultation procedures when making or amending the market ancillary service specifications.”
General MASS Review
AEMO last conducted a review of the MASS in 2020. This was a limited review aimed at addressing a key issue pertaining to disincentives to providing Primary Frequency Response (PFR). That review, along with feedback from participants, general developments in the FCAS markets and the rollout of the PFR rule have highlighted a range of issues to do with the MASS that should be given due consideration. In addition, AEMO believes there is an opportunity to reformat the MASS to make it a clearer and more useful document for setting out the purpose and nature of the different FCAS products.
DER MASS Review
In June 2019, AEMO in collaboration with the Australian Renewable Energy Agency (ARNEA), the Australian Energy Market Commission (AEMC), the Australian Energy Regulator (AER), and members of the Distributed Energy Integration Program (DEIP) established the VPP demonstrations.
This demonstration provided the opportunity to trial the capability for DER to deliver contingency FCAS through VPPs using interim arrangements in the VPP Demonstrations FCAS specification.
The Issues paper for this consultation references evidence and learnings from the VPP Demonstrations and outlines key questions to industry regarding the ongoing arrangements for DER. The paper presents two options for what happens next in relation to DER participation in FCAS markets, and seeks stakeholder feedback on each option. The principles that will guide AEMO in its assessment of these options are also outlined in the paper.
Indicative Consultation Timeline
AEMO has considered submissions and stakeholder feedback and has extended the MASS consultation to seek further independent analysis. A further draft determination will be issued on Thursday 28 October 2021, followed by a further round of consultation and a final determination will be published in December.
|Issues Paper and Notice of First Stage of Consultation||Tuesday, 19 January 2021||Complete|
|Submissions Close||Thursday, 11 March 2021||Complete|
|Draft MASS and Notice of Second Stage of Consultation||Monday, 14 June 2021||Complete|
|Submissions close||Friday, 6 August 2021
|Draft MASS and Notice of Third Stage of Consultation||Thursday, 28 October 2021||In Progress|
|Submissions Close||Thursday, 18 November 2021||To be commenced|
|Final MASS determination published||Wednesday, 22 December 2021||To be commenced|
For more information, or if you have questions please contact firstname.lastname@example.org
AEMO held a Feedback and Information Session on 1 October 2021 to provide stakeholders with an overview of the feedback received during the second stage of consultation that has influenced the decision to conduct further analysis. A copy of the presentation is available below.
AEMO held 2 stakeholder forums to facilitate discussion, clarification and Q&A regarding the broader MASS review and DER MASS review components under consultation.
Please see below for details of the forum(s):
4 February - complete
- General MASS Review: 10:30 – 11:30am (AEDT)
- DER MASS Review: 11:30am – 12:30pm (AEDT)
23 June 2021 - complete
- General MASS Review: 10:00 – 11:00am (AEDT)
- DER MASS Review: 11:00am – 12:00pm (AEDT)
Cape Byron Management568.55 KB
CitiPower Powercor and United Energy134.38 KB
CEC - Attachment 177.69 KB
CEC - Attachment 22.78 MB
CS Energy Limited588.61 KB
Delta Energy128.09 KB
MASS Consultation FAQ72.54 KB
Market Ancillary Services Specification - v6.0
Effective 1 July 2020553.06 KB
NEM VPP Demonstrations Final Design473.12 KB
VPP Demonstrations FCAS Specification735.87 KB
VPP Knowledge Sharing Report #1815.22 KB
VPP Knowledge Sharing Report #22.74 MB
First stage submissions
AEMO received requests for meetings from the following stakeholders:
- Reposit Power
AEMO also sought to meet with the following stakeholders to understand components of their submissions in further detail:
- Planet Ark Power
- Shell Energy
- Solar Analytics
Summaries of the outcomes of these meetings are available below.