Dispatch Service Enhancement Project

Transpower is updating its dispatch system and tools which will enable current GENCO participants to move to an alternate communication protocol for dispatch management.

Transpower is enabling dispatch over both ICCP or (RESTful) web services. These alternate dispatch protocols will allow participants who use ICCP to consolidate their communications, and enable smaller participants, for whom ICCP is not cost-effective, to be able to participate fully in the market and use a protocol that best fits their dispatch operation.

The New Zealand electricity market environment is changing with emerging business models, increasing uptake of new technologies and evolving market arrangements. In this developing environment, the project is also making configuration changes, which may serve as a stepping stone to the introduction of new dispatch products and functionality. This, in turn, may further increase market participation as the electricity market evolves.

Transpower deployed Web Services and ICCP block 2 dispatch capability on 8 August 2019. We are on schedule to deploy ICCP block 5 capability on 24 October 2019.

The Web Services online simulator will be made available end July 2019.

Key communication dates ahead of deployment on 8 August

Date

Deployment Activity

Participant Impact

Further Planned Communications

23-26 July during business hours

Updating EDF offline servers to have the DSE code installed but not used.

Participants using GENCO may notice intermittent momentary alarms for lost DMT connectivity.

CAN sent 22 July.

1 August approximately 11:00

First Market Database update.

Market System will be running from SAD for approximately 10 minutes. Bids and offers will back up at NZX and be processed when the outage is over

WITS email sent 25 July and reminder on the day.

7 August during business hours

Disabling offline EDF servers ready for main release on 8 August.

Participants using GENCO may notice intermittent momentary alarms for lost DMT connectivity.

CAN sent 6 August.

8 August 10:00 – 13:30

Main DSE release.

  • Transpower will switch Multi-provider Frequency Keeping (MFK) to Single-provider Frequency Keeping (SFK) mode from 10:00 until 13:00. HVDC Frequency Keeping Control (FKC) will remain enabled throughout.
  • Market System will be running from SAD for approximately 60 minutes. Bids and offers will back up at NZX and be processed when the outage is over. RTP will be missed during this time, other schedules may be published late.
  • There will be two short switches to SAD later in the day to confirm that the updated SAD works. During this time one RTP may be missed.

WITS email sent 31 July and CAN sent 6 August.

9 August during business hours

Updating remaining EDF servers to DSE configuration.

Participants using GENCO may notice intermittent momentary alarms for lost DMT connectivity.

CAN sent 6 August.

15 August 11:00 – 13:00

Final Deployment Activity

Post-deployment market system inter-site switchover.

Market System will be running from SAD for approximately 60 minutes. Bids and offers will back up at NZX and be processed when the outage is over. RTP will be missed during this time, other schedules may be published late. MFK will be enabled throughout this time.

WITS email sent 9 August.

Related Information

Electricity Authority Website - Consultation documentation (consultation is closed)
Market Dispatch Integration Pack (available on request)

Downloads

Dispatch Service Policy and Guideline [ pdf 1.02 MB ]
UG-SD-785 Web Service Dispatch Simulator User Guide [ pdf 1.02 MB ]
Market Dispatch Web Service API [ zip 4.65 KB ]
Frequently Asked Questions [ pdf 612.82 KB ]
DSE Workshop Presentation Pack – 1 March 2019 [ pdf 1.1 MB ]
DSE Workshop Presentation Pack – 30 November 2018 [ pdf 648.93 KB ]
DSE Workshop Presentation Pack – 15 February 2018 [ pdf 1.09 MB ]
 

If you have any queries, please contact the Project Manager, Marije Postma.

 

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