Dispatch Service Enhancement Project

Last updated: 12 Dec 2023

Project delivery was completed in August  2019

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.

 

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.

Frequently asked questions

What (technical) documentation will I receive during the delivery phase to help me implement the changes?

Transpower will make available the following documentation available to industry participants:

  • High Level Design
  • Detailed Design
  • Technical Specification Document
I am from a software development company interested in developing a Dispatch Web Services Client for connected participants, how do I access the information I need?

Please contact the Project Manager, Marije Postma.

Contact details are on the DSE project page of this website.

How do I get access to any of the documentation?

If you like to receive a copy of the below documentation when it becomes available, please send a request through to the Project Manager, Marije Postma.

Will the alternate communications protocols (including public-facing web services) be able to dispatch all current dispatch Products?

Transpower will make dispatch of all current dispatch products available over ICCP and Web Services, using a dedicated physical connection.

As part of the project, Transpower will review whether it would be prudent to dispatch all current dispatch products (or a sub-set) over public-facing internet.

How do I get regular updates on the Dispatch Service Enhancement Project?

As well as being able to get involved at Industry workshops, Transpower has a Dispatch Service Enhancement Project page on its website, which covers background information.

You can subscribe to the Dispatch Service Enhancement Project page and be notified by email when new content has been added.

As a dispatch participant, what do I need to do to be prepared for the transition after the project is completed?

The GENCO software will be phased out after the project has been completed.

Participants will have the option to adopt ICCP and/or Web Services as the mechanism for receiving and acknowledging dispatch Instructions from Transpower.

Participants will be required to integrate these APIs into their existing applications, or develop a new front end application to replace the GENCO software.

What will Transpower provide to enable participants to move off their GENCO smoothly?

Transpower will provide application interfaces and documentation for participants to use to receive dispatch information. (refer FAQs at the top of this page)

Participants currently integrated to Transpower over ICCP will need to add a new configuration that supports the various dispatch instructions they currently receive.

Participants are responsible for the configuration at their site and routing data into their SCADA system and presenting the information to their users.

Participants planning to use Web Services will need to develop a Web Services application in a compatible technology of their choosing.

What is a Service Enhancement Initiative?

The project is categorised as a service enhancement initiative, and funding approval is required to be sought through the appropriation consultation process.

As per the SOSPA, a service enhancement initiative is a Transpower initiated project with the objective to change, enhance or introduce new services, market tools and/or interfaces that provide Industry benefit and would require Industry endorsement.

Also, it requires Authority approval to proceed if:

it is in the recent capex plan has undergone EA appropriation consultation

 

Refer the SOSPA cl. 17.5

  • provides Industry net benefit
  • it is consistent with the SO strategic plan and SO ICT strategic roadmap
When will GENCO no longer be used for sending and receiving dispatch instructions?

The GENCO is running out of support in 2020.

As mentioned in the appropriation consultation document, December 2020 has been recommended to be the end date for supporting GENCO for dispatch management. We suggest participants to work towards this timeframe.

Workshop presentations

Related information

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