Battery storageProject Hornsdale Power Reserve Upgrade
This report focuses on the first six months of operations of the Hornsdale battery with advanced grid forming inverters (virtual machine mode – VMM) implemented.
The grid’s tendency to remain stable and maintain a constant frequency can be attributed in several ways to the basic characteristics of synchronous machines. Each machine’s rotational kinetic energy, or inertia, operates as a reservoir of energy that is transferred to or from the grid instantly as load changes occur.
Unlike many other forms of energy storage and generation, batteries (coupled with advanced inverters) are particularly valuable because they provide flexibility due to the types of services and grid support they are able to provide. They can respond faster to grid disturbances and/or operator commands than most other energy storage or generation technologies, thereby helping maintain grid stability by ramping up or down in fractions of a second.