Significant cost savings
In 2019 the battery reduced electricity costs by $116M through the provision of Frequency Control Ancillary Services (FCAS). Thanks to HPR, average Regulation FCAS costs have been reduced by more than 90% meaning major savings for all South Australian energy consumers.
Impact on costs
Keeping the lights on
It does this by reacting quickly and accurately to disturbances and fluctuations in the frequency of the grid, that would previously have caused blackouts.
For example, the battery does this when SA is separated or ‘islanded’ from the rest of the grid, ensuring that the SA system maintains its stability and the lights stay on. This has happened a number of times since the battery entered service.