APEX Summit 2023 - transitioning to decarbonisation


AGENDA AND ABOUT THE PRESENTERS

APEX 2023 Flyer

Best APEX Presentation Winner 2023


Hamish Weir, Beca

Hamish is a Power Systems Engineer in the Beca Power team. Since graduating from the University of Canterbury in 2021, he has been mostly involved in design of high voltage substations, though he has augmented this with work across various other fields such as system modelling and renewable design.  Hamish is passionate about developing his skills and knowledge to help to solve the problems that the electricity industry faces.

Runback Scheme Principles and Applications

The modern electrical power grid faces increasingly complex challenges, including the integration of renewable energy sources and the need for enhanced resilience in the face of disruptions.  Runback schemes, a critical aspect of power system protection and control, play a pivotal role in maintaining system stability and reliability.

This presentation delves into the key principles, applications, and technical/financial advantages of runback schemes within electrical power systems. It will explore:

  • How these schemes provide a safeguard against system instability by enabling controlled disconnection of generators during emergency situations, grid disturbances, or cascading failures.
  • Using runback schemes to reduce the cost of connection of non-dispatchable generation into existing transmission and distribution assets.
  • The integration of runback schemes with advanced grid control technologies, such as smart grids and microgrids, emphasizing their potential to enhance grid resilience and adaptability.

Attendees can expect to gain insights into the future of power system protection and control, underlining the role of runback schemes in securing the stability and sustainability of electrical power networks.

People's Choice Award 2023


Zachary Jensen, Ventia

Zachary Jensen is a Graduate Engineer at Ventia, working in the electricity and gas division, where he works on various projects in the high-voltage industry.  He is commonly involved with the delivery of innovative projects including 3D modelling, surveying, and drone operations.  His role also extends into engineering analysis and technical support for Ventia’s field operations.  Zachary graduated from the University of Canterbury in 2022 with an Honours Degree in Electrical and Electronic Engineering.

Effective Disaster Recovery Planning and Resource Management

On February 14, 2023, Cyclone Gabrielle hit the Hawke's Bay and Gisborne region, causing severe flooding and damage to Transpower's Redclyffe Substation, an essential link to Unison’s distribution network.  This resulted in the substation tripping, disconnecting 103MW of power and over 75,000 homes.  Ventia’s Central Region team was the first to arrive at Redclyffe Substation to assess the damage and begin restoring power.  Power was restored to most customers within 8 days, however, the full rebuild lasted 7 months.

Ventia’s experience during the Redclyffe response highlighted the importance of effective disaster recovery planning and resource management.  With climate change increasing the likelihood of similar events, resilience and response to these events is extremely important.  This presentation focuses on Ventia’s response to the Napier floods and its purpose is to communicate our journey and the key lessons learned, including:

  • The first response,
  • assessment of the damaged substation,
  • initial restoration and pressures to restore power,
  • long term rebuild and fatigue management,

Ventia’s review of what succeeded and failed, how this could be improved for future events.

Presentations

Hanna Cheng

The Challenges of a Changing Generation Portfolio and an Introduction into Grid-forming Inverters

Zachary Jensen

Effective Disaster Recovery Planning and Resource Management

Ella Gilroy

Watt’s the solution?  Investment within a changing energy landscape

Aratrika Ghosh

Preparation for Electromagnetic Transients (EMT) Studies for New Zealand

Brian Luo

Earth testing application

Sanjay Mepani

An innovative approach to non-network upgrade solutions

Anthony Mirfin

Aurora Energy Decarbonisation Scenarios

Kristen Ong

(EV)olution, Trends and Insights on New EV Charger Connections

Aleida Powell and Mitchel Davis

Painting by Numbers: a 2050 Picture of South Canterbury Electricity Demand

Rohit Singh

Transpower’s Digital Substation

Digvijay Singh

Let’s Get Serious with Sustainable Substation Structures

Hamish Weir

Runback Scheme Principles and Applications




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