Contacting the System Operator

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Key Contacts within the system operator

Market Group Help Desk

General Enquires

Key Contacts within the System Operator

The following people can be contacted during normal business hours to answer specific queries from the electricity industry.  For market services enquiries please refer to the helpdesk number and email address below.

Topic Name Contact Details
Ancillary Services Leigh Westley,
Ancillary Services Manager (Mon,Tues, Wed, Fri)
DDI     +64 4 590 6618
Mobile +64 27 450 6985

Corinne Somerville, 

Contracts and Projects Administrator (Mon, Tues, Wed)

DDI      +64 4 590 7247

Casey Dalton,
Contracts and Projects Administrator (Thu, Fri)

DDI     +64 4 590 6837
Compliance and Code matters Scott Avery,
Audit and Compliance Manager
DDI     +64 4 590 6144
Mobile +64 27 706 5164
Market Development Erich Livengood
Market Manager
DDI     +64 4 590 8585
Mobile +64 21 221 6524
Outage Planning Grant Tuffery,
Engineering Team Leader - System Security
DDI     +64 7 590 6222
Mobile +64 21 390 597
Security of Supply Emily Calvert,
Security of Supply Analyst
DDI     +64 4 590 6572
Testing and Commissioning Kevin Wronski,
Engineering Team Leader - Compliance
DDI     +64 7 590 6219
Mobile +64 21 513 996

Market Group Help Desk

About the Market Group

The Market Group is responsible for the day to day management of the electricity market services of the system operator function. This includes provision of the system operator service provider function under the Electricity Industry Participation Code (the 'Code').

These functions provide for:

  • the procurement and management of contracts for ancillary services (black start, frequency keeping, voltage support and instantaneous reserves) to meet grid security objectives
  • the support of the competitive wholesale market, in which individual generators and energy retailers compete to buy and sell energy
  • the ongoing development of frameworks, tools and systems to link the wholesale market to the physical generation and transmission equipment and systems
  • the monitoring and compliance of the system operators obligations under the 'Code'.

The Market Operations Team within the system operator can assist with any market-related queries.

Please call our helpdesk phone on +64 4 590 7470 or email during normal business hours.

General Enquiries

Send any other comments or queries to