Event Recordings

Electrolysis Corrosion Caused by Stray Current
14 August 2019 - Jim Hickey

SYNOPSIS

Corrosion of metals can be categorised into four main types. The least aggressive forms of corrosion can be attributed to general corrosion where anodes and cathodes distribute corrosion currents on the surface of a metal which are typically in the order of µA or smaller. A more aggressive type of corrosion can be found when the anode/cathode driving voltage increases due to contact between dissimilar metals in a common conductive medium such as water or earth. This type of corrosion is known as galvanic corrosion and typically is another order of magnitude higher then general corrosion. The next level more aggressive then galvanic corrosion is electrolysis corrosion or commonly referred to as stray current corrosion. This type of corrosion is caused by stray current from dc sources such as cathodic protection systems, battery charging facilities and sola generation etc. With the increased driving voltages due to the use of external power sources, stray current in the ampere range can cause rapid corrosion by conduction through 3rd party assets that share the common medium of earth or water. Arguably, the most severe form of corrosion is due to stray traction current where corrosion current magnitudes readily reach ten to hundreds of amps.

This webinar outlines the characteristics of electrolysis corrosion with an emphasis on stray traction current effects and management strategies.

ABOUT THE PRESENTER

Jim Hickey, Ausgrid, Newcastle, Australia

Jim Hickey is the Electrolysis Engineering Officer at Ausgrid. Jim has over 36 years’ experience with Energy Authorities covering electrical testing, earthing design and assessment and electrolysis corrosion fields. Jim is also the Chairperson for the NSW Electrolysis Committee and is an active member of the Australian Electrolysis Committee and the Australasian Corrosion Association NSW and Newcastle Branches. As Ausgrid’s ACA accredited Corrosion Technologist, Jim is responsible for managing the electrolysis corrosion aspects of Ausgrid’s electrical network.

Commercial Asset Management and the ISO55000 Series
26 June 2019 - John Hardwick

SYNOPSIS

This webinar is about the implementation of commercial asset management, specifically, how can an organisation manage their assets in a way that maximises usage and return both in terms of framework and implementation. Also, how compliance with the ISO55000 series of standards benefit an organisation and how can they transform their organisation to realise these benefits.

ABOUT THE PRESENTER

John Hardwick, Executive Director Sydney, Roads and Maritime Services

Qualifications GAICD, CFAM, EMBA

John commenced as Executive Director Sydney in April 2017. Prior to joining Roads and Maritime, John was Head of Asset Management for Ausgrid, where he delivered ongoing savings of over $30 million per annum and the successful lease of the network business. Previously John held a number of senior management positions including Head of Network Strategy at Networks NSW, where he led key transformations and cost savings for three electricity distribution businesses (Ausgrid, Endeavour and Essential Energy). He did this by developing and implementing consistent frameworks and strategies for asset management and safety.

John is a graduate of the Australian Institute of Company Directors and serves as a board member for numerous global and Australian asset management organisations and co-authored the book Living Asset Management. In 2018 John was awarded the MESA medal by the Asset Management Council. The MESA Medal is awarded to an individual who has personally contributed at the highest level to the advancement of the science and/or practice of asset management.

John is accountable for the end-to-end management of the Sydney road network. This includes investment prioritisation, planning, asset management, operations, maintenance and performance.

In 2017/18 John successfully implemented a new structure for Sydney Division to align to the OneRMS operating model which commenced in April 2017. The new structure enables better outcomes for Sydney customers, increases Divisional productivity and reduces duplication.

The Sydney Division consists of North West and South East Precincts, Sydney Planning, Sydney Maintenance, Easing Sydney’s Congestion and Program Controls.

Key responsibilities of the division include:

• The customer and community outcomes from investments in the Sydney road network
• planning and managing the Sydney road network to achieve the safe, efficient and reliable movement of people and goods that effectively integrates with the transport system
• delivering high benefit programs and projects through low impact, smart solutions
• delivering infrastructure programs and traffic operations services that meet customer expectations safely and sustainably
• enabling network resilience by managing risks to critical infrastructure across NSW, and effectively ‘prevent, prepare, respond and recover’ from ‘all hazard’ risk events.

STATCOM Solutions for Voltage Management on Distribution Systems
13 June 2019 - Ryan Rainville

This is webinar #4 in a 4-part series presented by AMSC.

SERIES SYNOPSIS

Increased penetration of renewable generation resources (e.g., wind and solar), driven by defined targets for the amount of renewable generation mix, is pushing the performance of today’s transmission grids to new limits in many regions. To ensure a secure and reliable operation of the grid, the Australian utilities and regulators provide direction through their updated interconnection requirements. In this webinar series, reactive power requirements of the new National Electricity Rule (NER) are reviewed for its impact on renewable energy projects.

Meanwhile, on the distribution system, distributed energy sources (DER) in the form of PV solar installations are becoming more prevalent. The existing distribution systems face challenges, including power quality, voltage stability, and reverse power flow.

Solutions that provide secure and reliable power are needed. AMSC is conducting this workshop to increase awareness on the following subjects:

• STATCOM equipment capabilities and model validation required to meet AEMO guidelines
• Renewable energy integration, issues and challenges in Australia
• Voltage collapse/voltage instability, and solutions involving Flexible Alternating Current Transmission Systems (FACTS)
• Reactive power and voltage management using STATCOMs in distribution systems

The workshop will include basic concepts on STATCOMs, renewable energy integration, reactive power compensation, active and reactive power transmission and voltage stability. In-depth analysis of actual voltage stability events along with a discussion on modern methods to prevent such events will be discussed. Attendees will also be able to learn about some of the latest developments in modeling tools and techniques. These techniques will allow power system planners to appropriately identify and address potential problems and ensure compliance of the renewable plants to local codes and requirements.

The workshop is an outstanding opportunity for consultants, engineers and developers who are involved in planning, operation, design, specification, installation and maintenance of transmission and distribution assets, renewable energy or large industrial and mining facilities.

ABOUT THE PRESENTER

Ryan Rainville - Engineer, AMSC

Mr. Rainville joined AMSC’s Network Planning and Applications group in 2018. His responsibilities include software modeling and analysis of the electric power system for voltage support, transient stability, and hosting capacity. Prior to joining AMSC he worked 2.5 years in ControlPoint Technologies’ System Planning Group. While there, he evaluated the system impact of intermittent resources on distribution and subtransmission circuits. Before ControlPoint he worked for 3.5 years at Green Mountain Power and managed the technical aspects of distributed generator interconnections from the application stage through commissioning. Mr. Rainville has experience evaluating the dynamic voltage impact of cloud passage and PV, wind variability and turbines, storage resources in frequency regulation markets, and static VAR compensators. His past work also included disturbance analysis, relay coordination studies, arc flash assessment, and microgrid development. He received his B.S degree in electromechanical engineering from Wentworth Institute of Technology and his E.I.T. certification in the state of Massachusetts.

STATCOM Solutions for Voltage Stability and Power Quality Problems
9 May 2019 - Bilgehan Donmez & Ryan Rainville

This is webinar #3 in a 4-part series presented by AMSC.

SERIES SYNOPSIS

Increased penetration of renewable generation resources (e.g., wind and solar), driven by defined targets for the amount of renewable generation mix, is pushing the performance of today’s transmission grids to new limits in many regions. To ensure a secure and reliable operation of the grid, the Australian utilities and regulators provide direction through their updated interconnection requirements. In this webinar series, reactive power requirements of the new National Electricity Rule (NER) are reviewed for its impact on renewable energy projects.

Meanwhile, on the distribution system, distributed energy sources (DER) in the form of PV solar installations are becoming more prevalent. The existing distribution systems face challenges, including power quality, voltage stability, and reverse power flow.

Solutions that provide secure and reliable power are needed. AMSC is conducting this workshop to increase awareness on the following subjects:

• STATCOM equipment capabilities and model validation required to meet AEMO guidelines
• Renewable energy integration, issues and challenges in Australia
• Voltage collapse/voltage instability, and solutions involving Flexible Alternating Current Transmission Systems (FACTS)
• Reactive power and voltage management using STATCOMs in distribution systems

The workshop will include basic concepts on STATCOMs, renewable energy integration, reactive power compensation, active and reactive power transmission and voltage stability. In-depth analysis of actual voltage stability events along with a discussion on modern methods to prevent such events will be discussed. Attendees will also be able to learn about some of the latest developments in modeling tools and techniques. These techniques will allow power system planners to appropriately identify and address potential problems and ensure compliance of the renewable plants to local codes and requirements.

The workshop is an outstanding opportunity for consultants, engineers and developers who are involved in planning, operation, design, specification, installation and maintenance of transmission and distribution assets, renewable energy or large industrial and mining facilities.

THE PRESENTERS

Bilgehan Donmez - Lead Engineer, AMSC

Ryan Rainville - Engineer, AMSC

Renewable Energy Integration in Aus – Reactive Power Requirements of the New National Electricity Rule
11 April, 2019 - Tim Freiberg

This is webinar #2 in a 4-part series presented by AMSC.

SERIES SYNOPSIS

Increased penetration of renewable generation resources (e.g., wind and solar), driven by defined targets for the amount of renewable generation mix, is pushing the performance of today’s transmission grids to new limits in many regions. To ensure a secure and reliable operation of the grid, the Australian utilities and regulators provide direction through their updated interconnection requirements. In this webinar series, reactive power requirements of the new National Electricity Rule (NER) are reviewed for its impact on renewable energy projects.

Meanwhile, on the distribution system, distributed energy sources (DER) in the form of PV solar installations are becoming more prevalent. The existing distribution systems face challenges, including power quality, voltage stability, and reverse power flow.

Solutions that provide secure and reliable power are needed. AMSC is conducting this workshop to increase awareness on the following subjects:

• STATCOM equipment capabilities and model validation required to meet AEMO guidelines
• Renewable energy integration, issues and challenges in Australia
• Voltage collapse/voltage instability, and solutions involving Flexible Alternating Current Transmission Systems (FACTS)
• Reactive power and voltage management using STATCOMs in distribution systems

The workshop will include basic concepts on STATCOMs, renewable energy integration, reactive power compensation, active and reactive power transmission and voltage stability. In-depth analysis of actual voltage stability events along with a discussion on modern methods to prevent such events will be discussed. Attendees will also be able to learn about some of the latest developments in modeling tools and techniques. These techniques will allow power system planners to appropriately identify and address potential problems and ensure compliance of the renewable plants to local codes and requirements.

The workshop is an outstanding opportunity for consultants, engineers and developers who are involved in planning, operation, design, specification, installation and maintenance of transmission and distribution assets, renewable energy or large industrial and mining facilities.

ABOUT THE PRESENTER

Tim Freiberg - Engineer, AMSC

Mr. Freiberg joined American Superconductor in 2008 as a Technical Inside Sales Engineer, and AMSC’s Network Planning and Applications team in 2014. As a Sales Engineer, his responsibilities included specification review and the preparation and pricing of proposals for AMSC’s STATCOM and SVC products. Currently he performs studies for wind farms and other renewable resource interconnection, as well as transmission and distribution voltage stability and load growth. These studies include load flow analyses, harmonic analyses, and dynamic simulations to design reactive compensation solutions. He earned his B.S. in Electrical Engineering from Milwaukee School of Engineering and is a member of IEEE.

STATCOM Equipment Capabilities and Model Validation Required to Meet AEMO Guidelines
21 March, 2019 - Bilgehan Donmez

This is webinar #1 in a 4-part series presented by AMSC.

SERIES SYNOPSIS

Increased penetration of renewable generation resources (e.g., wind and solar), driven by defined targets for the amount of renewable generation mix, is pushing the performance of today’s transmission grids to new limits in many regions. To ensure a secure and reliable operation of the grid, the Australian utilities and regulators provide direction through their updated interconnection requirements. In this webinar series, reactive power requirements of the new National Electricity Rule (NER) are reviewed for its impact on renewable energy projects.

Meanwhile, on the distribution system, distributed energy sources (DER) in the form of PV solar installations are becoming more prevalent. The existing distribution systems face challenges, including power quality, voltage stability, and reverse power flow.

Solutions that provide secure and reliable power are needed. AMSC is conducting this workshop to increase awareness on the following subjects:

• STATCOM equipment capabilities and model validation required to meet AEMO guidelines
• Renewable energy integration, issues and challenges in Australia
• Voltage collapse/voltage instability, and solutions involving Flexible Alternating Current Transmission Systems (FACTS)
• Reactive power and voltage management using STATCOMs in distribution systems

The workshop will include basic concepts on STATCOMs, renewable energy integration, reactive power compensation, active and reactive power transmission and voltage stability. In-depth analysis of actual voltage stability events along with a discussion on modern methods to prevent such events will be discussed. Attendees will also be able to learn about some of the latest developments in modeling tools and techniques. These techniques will allow power system planners to appropriately identify and address potential problems and ensure compliance of the renewable plants to local codes and requirements.

The workshop is an outstanding opportunity for consultants, engineers and developers who are involved in planning, operation, design, specification, installation and maintenance of transmission and distribution assets, renewable energy or large industrial and mining facilities.

ABOUT THE PRESENTER

Bilgehan Donmez - Lead Engineer, AMSC

Mr. Donmez joined AMSC’s Network Planning and Applications group in 2016. His responsibilities center around technical studies and research on electric power systems, as well as developing computer models and software tools to simulate and analyze power system networks. He is experienced in utilizing load flow, dynamic and electromagnetic transient, and harmonic analyses, to design solutions that address electrical power systems’ challenges and constraints. Prior to joining AMSC he worked for 5 years at ISO New England as a Real-Time Studies Engineer in the Operations Department, where he provided engineering support to the control room for the day to day operation of the New England electric grid. Before the ISO, he worked at National Grid as a Transmission Planning Engineer for 3 years. Mr. Donmez earned his B.S. degree in electrical engineering from the joint engineering program of University of Missouri and Washington University in St. Louis. He received his M.S. degree in electrical engineering from Northeastern University and is currently pursuing his Ph.D. degree there. He is a member of the IEEE.

Battery Storage Installation at Dapto
December 5, 2018 - Christopher Mason

SYNOPSIS

Endeavour Energy has embarked on a trial of the latest battery storage technology. The implementation is targeted at a network area to defer expenditure on a new major substation, but will trial other applications of the technology including volt-var support and islanded operation. The implementation is nearly complete. The presentation will cover lessons learnt in preparing,expectedbenefits of the technology and a live cross to the site to tour what it physically looks like installed.

ABOUT THE PRESENTER

Christopher Mason - Senior Engineer of Technology Projects at Endeavour Energy

Christopher Mason is the Senior Engineer – Technology Projects at Endeavour Energy a NSW supply utility. He is focused on for developing secondary equipment and systems to improve asset visibility, reliability, utilisation and safety. He is an initiator of new technology for the company. In recent years, Christopher has been involved in trialling the benefits of battery energy storage on the network. Two use cases are under trial; utility control of residential energy storage, and utility operated grid scale battery energy storage. Christopher is the technical lead for latter project.

STATCOM Technology for the Distribution System
October 31, 2018 - Bob McFetridge

SYNOPSIS

STATCOM Technology for the Distribution System, A New Option for Distribution-Connected Renewable Integration and Power Quality Solutions.

The days of large fossil fueled central station power plants are numbered and renewable generation in the forms of wind and solar are quickly taking its place. Wind farms have already spread widely acrossthe world and continue to be installed at a fast pace. PV solar generation is beginning to spread out. While large MW wind farms and PV plants are connected to the transmission system, smaller MW sized wind farms and PV solar plants are connected directly to the distribution system, where infrastructure allows. Certainly, the smaller commercial and residential PV solar installations are connected to the distribution system.

Many utilities impose a step voltage change (or flicker) limit, on their transmission and distribution systems. The value of the limit is usually set at around 2% to 3%. For example, this limit often drives the maximum size of a capacitor bank that can be switched or the rating of the largest line-started induction motor that can be started. . Typically, step voltage changes that are less than 2% are not perceived visually by their customers nor does it usually impact customer processes. Values greater than 2% that occur with greater frequency are known to cause impacts such as customer down-time and excessive wear and tear on utility equipment.

This paper presents methods for designing and sizing STATCOM installations on a utility distribution feeder such that the variation of the renewable generation will not exceed a utility’s step voltage change requirement.

Resilience of Distribution Grids
September 19, 2018 - Terry Lampard

SYNOPSIS

Resilience is a multi-faceted concept which can be interpreted and defined in several ways by organisations around the world, based on their practices and experiences with extreme events. In the context of electricity distribution networks, resilience can be widely defined with respect to the network’s ability to withstand rare and extreme events and quickly recover to its pre-event resilient state.

CIRED (Congres International des Reseaux Electriques de Distribution) has prepared a report on Electricity Distribution Network Resilience where a theoretical framework is presented as well as the state of the art on the following themes:

• Impact of different events to the electrical supply system
  
• Interdependence of infrastructure
  
• Evaluation of needs and existing resilience
  
• Strategies for planning, control and operation
  
• Overall strategies for cities in the case of a HILP event including crisis strategies
  
• Role of innovative networks and dispersed generation towards resilience
  

An overview of this report will be presented in this webinar.

ABOUT THE PRESENTER

Terry Lampard

Terry Lampard is a professional engineer with over 40 years’ experience in the electricity industry. He spent 37 years at Ausgrid and held numerous technical, commercial and management positions. He was Chair of the Energy Networks Association Electricity Technical Regulatory Committee for several years, which oversaw the development of national standards for electricity distribution. More recently, he managed the due diligence for the NSW electricity network lease transactions on behalf of NSW Treasury. He currently lectures in High Voltage Engineering at Sydney University and is an active participant in CIRED and CIGRE Working Groups in the area of Grid Resilience.

Terry is also a member of the NSW Chapter of the Electrical Energy Society of Australia.

Challenges Faced in Connecting a Remote Solar Farm
June 26, 2018 - Mathew Holden

SYNOPSIS

With a fault level of only 45 MVA and customer load of 3.3 MVA, connection of an 18 MW Solar Farm at Hughenden in mid-western Queensland presented some unique challenges to Energy Queensland. This paper reviews the methodology adopted by the Planning, Protection and Operations teams to facilitate connection of a modern renewable power station to a substation that started life in the ‘70s as the grid connection to an isolated diesel fired power station. Voltage management, load constraints, distributed anti-islanding and contingency driven generator ramp down are considered, including comparison to actual performance and initial operational experience. Network impacts observed during Generator Performance Standard testing will be discussed and compared to modelled results.

ABOUT THE PRESENTER

Matthew Holden - Ergon Energy

Matthew has been in the Electricity supply industry for 18 years, mainly with Ergon Energy. He did a short nine-month stint with ABB/Mowlem in the UK. He has varied experience across the substation space, including design and testing. His current role is in commissioning and maintenance. Matthew is fascinated with the current renewables boom, seeing it as a challenge and a really exciting time to be in the electric energy industry.

Tasmania Pumped Storage
April 18, 2018 - Pippa Williams

SYNOPSIS

Australia’s National Electricity Market is facing a period of significant change, and the future NEM is expected to bear little resemblance to its current state. Coal generation is expected to progressively retire due to age-related deterioration (and possibly market pressures) and will be replaced by new cost-competitive energy sources that are likely to be variable - wind and solar. The interactions of these variable energy sources will change the nature of the power system and power system planning and modelling.

In this context of rapid technology development and persistent policy uncertainty, how can we achieve a stable, reliable, low cost and clean power system? How can we identify the investments we will need to make, and commit to long-term decisions under such uncertainty? How can we leverage existing assets while embracing new and disruptive technology?

Hydro Tasmania, on behalf of the Government of Tasmania, in partnership with TasNetworks and with support from ARENA, is undertaking the Battery of the Nation initiative, to explore a vision where Tasmania plays a much more significant role in the NEM. The initiative looks at expanding interconnection, repurposing existing hydroelectric generating plant, augmenting the existing system with pumped hydro energy storage, and developing strong variable renewable energy in the state. The initiative is also developing methodology to understand the value of synergistic investments, such as variable renewable energy and storage, and makes the case for Tasmania as an attractive development opportunity to address future power system challenges.

ABOUT THE PRESENTER

Pippa Williams - Asset Strategy and Risk Engineer at Hydro Tasmania

Pippa Williams is an Asset Strategy and Risk Engineer for Hydro Tasmania, a generation utility in Tasmania. She is currently working with the Battery of the Nation initiative, exploring a vision where Tasmania plays a significantly increased role in the NEM. Pippa’s professional interests are future-focussed asset management and renewable energy integration.

Download accompanying report | Download.

Nuclear Energy Technology: pathways for Australia and the world
February 21, 2018 - Ben Heard

SYNOPSIS

The use of nuclear power technologies is in a state of great flux, with a cohort of seemingly contradictory evidence regarding its current performance and future potential. This webinar will explore the changing face of nuclear technology world-wide, exploring the successes, the failures, the challenges and the opportunities, including the development of small high temperature reactors. After a global examination, the webinar will look more closely at the Australian energy market and explore the potential role for nuclear technologies and both the barriers and opportunities relating to its late adoption in Australia.

ABOUT THE PRESENTER

Ben Heard - Founder and Executive Director at Bright New World

Ben is a highly qualified sustainability professional, now focused on the role of nuclear technologies in enhancing human prosperity and the natural environment. He has recently completed doctoral studies at the University of Adelaide (currently under assessment) with a thesis called Clean. Reliable. Affordable: The role of nuclear technology in 21st century energy supply. His first published paper won the 2016 Publication Medal from the Royal Society of South Australia, and his third paper is the #1 ranked altmetric for the journal Renewable and Sustainable Energy Reviews. He was closely involved in the process of the Nuclear Fuel Cycle Royal Commission, and provided testimony to the Join Committee reviewing the Royal Commission findings. He was a member of the Public Advisory Panel for the siting of the Federal government’s low and intermediate level radioactive waste storage and disposal facility.

Ben completed a Masters in Corporate Sustainability at Monash University and spent several years in stakeholder consultation and communications for complex sustainability issues like native and plantation forestry industries, legacy toxic waste sites and transport infrastructure.

He worked in major projects in climate change adaptation (and mitigation. This led to the establishment of his own small consulting firm in South Australia. In 2011, he became a public figure representing the case for nuclear technologies as environmentally beneficial, particularly in relation to climate change mitigation. Through his blog, Decarbonise SA, he tracked this journey and helped to build a growing international community. He now operates a membership-based, non-governmental organisation to represent this community in the public arena via submissions, presentations, articles, research and media work, in Australia and internationally.