As Australia's electricity network continues to evolve, so do the technical standards that govern the design, operation and maintenance of electrical infrastructure. The rapid growth of renewable energy, battery storage, electrification of industry and increasing network reliability requirements are driving continual updates to Australian Standards and utility specifications.
For energy network operators, renewable energy developers, industrial facilities and electrical contractors, keeping up with these changes is no longer simply about regulatory compliance. It is essential for improving safety, ensuring reliable operation and protecting valuable assets over their entire service life.
This article explains the key Australian energy standards affecting high-voltage equipment and what they mean for organisations responsible for substations, transformers and power system assets.
Why Australian Energy Standards Are Changing
Australia's electricity system is undergoing one of the most significant transformations in its history. The rapid growth of renewable energy, battery energy storage systems (BESS), distributed energy resources (DER), and digital substations is changing how power networks are designed, operated and maintained [1].
To support this transition, Australian Standards and National Electricity Market (NEM) technical requirements continue to evolve. Recent updates focus on improving safety, reliability, interoperability and network resilience while aligning Australian practices more closely with international IEC standards.
Draft DR AS 61936.1 – A New Direction for High-Voltage Installations
One of the most significant developments is the release of DR AS 61936.1, a draft Australian Standard for high-voltage electrical power installations exceeding 1 kV AC and 1.5 kV DC. The draft is intended to eventually replace AS 2067 – Substations and High Voltage Installations Exceeding 1 kV a.c., one of Australia's most widely referenced standards for substation design and operation [2].
The proposed standard aligns Australia more closely with the international IEC 61936-1 framework and reflects modern engineering practices for today's electricity networks, including renewable energy projects, battery storage facilities and digital substations [3]. Once adopted, it is expected to influence future utility specifications, engineering designs and project compliance requirements.
Updates to the AS/NZS 60076 Transformer Standards
The AS/NZS 60076 series continue to expand alongside advances in transformer technology. In July 2025, AS/NZS 60076.14:2025 was published, introducing requirements for liquid-immersed power transformers that use high-temperature insulation systems [3]. These transformers can operate at higher temperatures than conventional designs, offering greater flexibility for applications where higher loading capability or improved thermal performance is required.
For utilities and industrial asset owners, these developments reinforce the importance of selecting transformer designs, insulation systems and monitoring technologies that comply with the latest standards while supporting long-term asset reliability.
Renewable Energy Integration and Battery Energy Storage
Australia's transition toward a cleaner electricity system is also driving changes beyond traditional equipment standards.
In 2025, the Australian Energy Market Commission (AEMC) introduced updated National Electricity Market access standards designed to improve the connection process for renewable generation, battery energy storage systems and other emerging technologies while maintaining power system security. The revised requirements provide clearer technical expectations for new connections and better reflect the needs of a rapidly changing grid [4].
At the same time, battery energy storage standards continue to evolve. Amendments to AS/NZS 5139 provide additional guidance for the safe installation of battery energy storage systems, helping improve consistency and safety as BESS deployments become increasingly common across commercial, industrial and utility-scale applications [5].
The increasing adoption of digital substations is also influencing engineering practices. Modern substations rely on continuous monitoring, intelligent electronic devices (IEDs), digital communications and asset health analytics to provide operators with greater visibility into equipment condition, enabling condition-based maintenance and improving overall network reliability.
The Rise of Digital Substations
Modern substations are becoming increasingly intelligent. Rather than relying solely on scheduled inspections, utilities are investing in digital technologies that provide continuous visibility into asset condition.
Digital substations typically integrate:
- Intelligent Electronic Devices (IEDs)
- Online transformer monitoring
- Dissolved Gas Analysis (DGA)
- Circuit breaker monitoring
- Bushing monitoring
- Power quality monitoring
- Centralised asset management platforms
These technologies support condition-based maintenance by providing real-time operational data, allowing maintenance teams to detect developing faults earlier, reduce unplanned outages and extend equipment life.
As industry standards continue to evolve, digital monitoring is expected to play an increasingly important role in supporting compliance, operational resilience and asset management best practices.
Compliance Is Only the Starting Point
Meeting the minimum standard is essential, but leading asset owners increasingly focus on long-term asset performance rather than compliance alone.
Modern asset management strategies place greater emphasis on:
- Continuous condition monitoring
- Predictive maintenance
- Asset health assessment
- Digital substation technologies
- Data-driven maintenance planning
- Lifecycle cost optimisation
Rather than waiting for periodic inspections, utilities are investing in technologies that provide continuous insight into transformer condition, circuit breaker performance and substation health.
This proactive approach helps reduce unplanned outages, improve maintenance scheduling and maximise asset life.
Preparing for Future Standards
The pace of change across Australia's electricity sector is unlikely to slow. Future standards are expected to place even greater emphasis on:
- Renewable energy integration
- Battery energy storage systems (BESS)
- Digital substations and intelligent monitoring
- Cybersecurity for critical infrastructure
- Asset condition monitoring
- Energy efficiency and sustainability
- Condition-based and predictive maintenance
Rather than viewing compliance as a one-time project, leading utilities and industrial asset owners are investing in technologies that help them remain compliant as standards evolve. Solutions such as transformer monitoring, dissolved gas analysis (DGA), online bushing monitoring, circuit breaker monitoring and integrated substation monitoring platforms provide valuable operational data while supporting safer, more reliable asset management.
By adopting these technologies today, organisations can improve asset performance, reduce maintenance costs and position themselves to meet the next generation of Australian energy standards with confidence.
How Insulect Helps
Keeping pace with evolving standards requires more than selecting compliant equipment. It requires choosing solutions that support safe, reliable and efficient operation throughout an asset's lifecycle.
Insulect supplies proven technologies for utilities, renewable energy projects and industrial facilities across Australia and New Zealand, including transformer monitoring systems, dissolved gas analysis, bushings, disconnectors, circuit breaker monitoring, substation monitoring platforms, insulation solutions and high-voltage equipment.
Whether you are designing a new substation, upgrading ageing infrastructure or implementing condition monitoring, our engineering team can help identify solutions that align with Australian Standards while supporting long-term asset performance.
Talk to Insulect to discuss compliant, future-ready solutions for your high-voltage infrastructure and learn how advanced monitoring technologies can help improve reliability, reduce maintenance costs and extend asset life.
References
- Australian Energy Market Commission. National Electricity Amendment (Improving the NEM Access Standards – Package 1) Rule Determination (22 May 2025). https://www.aemc.gov.au/media/103784
- Standards Australia. Development of DR AS 61936.1 – High-voltage electrical power installations exceeding 1 kV AC and 1.5 kV DC (Draft Standard). https://www.standards.org.au/
- Intertek Inform. AS/NZS 60076.14:2025 – Power Transformers – Part 14: Liquid-immersed power transformers using high-temperature insulation materials. https://www.intertekinform.com/en-au/standards/as-nzs-60076-14-2025-1407722_saig_as_as_3644992/
- Australian Energy Market Commission. National Electricity Amendment (Improving the NEM Access Standards – Package 1) Rule 2025. https://www.aemc.gov.au/rule-changes/improving-nem-access-standards-package-1
- Australian Energy Market Commission. Improving the NEM Access Standards – Package 2 Information Sheet. https://www.aemc.gov.au/sites/default/files/2025-05/Info%20sheet%20-%20Improving%20the%20NEM%20access%20standards%20-%20Package%202.pdf