Renewables for industryProject Reactive Technologies System Inertia Measurement Demonstration
This report summarises the deployment of the frequency measurement units (XMUs) and testing phase of inertia measurements along 15 different locations along the grid in Victoria.
Interim analysis of the frequency and modulation data gathered at these stages, already demonstrates the value of measuring inertia. For the first time in the Southern Hemisphere, a grid operator gained visibility and insights onto the sizeable amount of unmetered residual inertia originating from synchronous motors in the demand side and
synchronous embedded generators. The additional inertia unknown to AEMO accounts to an average of 25%. The benefit in accurately monitoring the residual inertia spans from reduced curtailment of inverter-based resources, reduced spend on procuring frequency response and ancillary services, and improved placement and sizing of synchronous condenser.
In addition to detailing the accomplishments of these project milestones, this report also delves into the lessons learned throughout the various stages of project activities to date. These insights into challenges, successes, and best practices will contribute to the project’s success and will inform future decision-making processes. The report serves as a resource for project stakeholders, offering a clear understanding of the achievements, challenges, and continuous improvements made during the project’s execution.