AEMO operates the power system for the National Electricity Market (NEM) that serves the eastern and south-eastern regions of Australia, and the Western Australian South West Integrated System. Our key responsibility is to oversee the operations of the power system so electricity is supplied safely, securely, and reliably to Australian homes and businesses, and the power system operates in the long-term interests of consumers.
In summer, the power system must manage extra risk as it responds to high consumer energy demand, in the face of high temperatures and climatic events including bushfires and storms.
Annually, AEMO prepares a summer readiness plan, collaborating with generation and transmission network providers, federal and state governments, and key agencies to actively manage heightened risks to power system operations.
The readiness plan to address risks and deliver reliable and secure power to consumers throughout summer 2018-19 builds on the strategies and actions which delivered reliable, secure supply during summer 2017-18 (the second-warmest on record)1 , and is structured around these four pillars:
- Sufficient available resources.
- Continuing operational improvements.
- Contingency planning.
- Collaboration and communication.
Managing system security as the power system transitions is a focus all year round, not just during periods of peak summer electricity demand. The summer plan includes continued focus on management of frequency, voltage, system strength, and inertia to maintain a secure power system throughout summer, including security challenges posed at times of low grid demand.