S.A. Energy Security Legislation Draft Not Good For Battery Storage

A draft legislation by the South Australia government to grant incentives only to “real inertia” may put a stop on battery storage and hinder future renewables developments if it is not changed. According to critics, this draft will deliver a $3.5 billion subsidy to the owners of state’s gas generators and would not lead to reduced prices for consumers or increased energy security and doesn’t focus on demand management and efficiency.

Although the government wants to rise its electricity demand coming from local dispatchable generation to 50% by 2025, it defines qualifying generation as providing “real inertia” and “fault current” and thus actually excludes “synthetic inertia” from battery storage and wind and solar farms.

We have heard of the ‘real inertia’ discussion and it sounds a little strange to us“, says Philip Hiersemenzel from Younicos /a German battery storage developer/. “There is, of course, absolutely no need for ‘real inertia’ rather a ‘synthetic inertia’ to keep the grid stable. In fact, if you’re starting from the premise that more and more power should and will be provided by cheap, clean, but intermittent renewables such as wind and solar, then ‘synthetic’ inertia has a number of manifest advantages.” he continues.

According to Dylan McConnell, from the Climate and Energy College in Melbourne, the legislation would not lead to improved system security and would in reality explicitly prevent flywheels and synchronous condensers which could provide inertia at all time compared to gas generation that can only provide inertia when it is actually on. Offline gas generation has time to synchronization greater than 5 minutes, and time to minimum load greater than 10 minutes, as opposed to less than 100 milliseconds for batteries. This is hardly beneficial for the system security.

Read the original article

If you want to know more about this and other topics directly from end users of energy storage technologies join us at one of these annual events: The Energy Storage World Forum (Grid Scale Applications), or The Residential Energy Storage Forum, or one of our Training Courses.


Product Development: Embracing product safety and compliance

PRODUCT DEVELOPMENT: EMBRACING PRODUCT SAFETY AND COMPLIANCE Recent safety incidents on storage plants have raised concerns about the fire safety of battery storage systems. Such events are extremely rare compared to the cumulated global deployments of energy storage systems, which have reached more than 27 GWh by end of 2020 (Wood Mackenzie 2021). However, for…

Read More

Ultracapacitor UPS (U-UPS) for voltage dips and micro-interruptions

Power interruptions are the most frequent power supply problems with wide-ranging consequences for industry. The causes of these interruptions include short-circuits in the distribution grid, lightning strikes, the connection and disconnection of power plants as well as volatile energy producers such as wind and solar. Because technologies and production processes are becoming increasingly complex, the…

Read More


“Probably the most interactive and well organized storage event on the calendar.”


Sales Director, S&C

“Great topics, competent speakers, good networking: keep it like that.”



“High scientific content, well targeted, perfect organization.”


Expert Technical & Governance, Elia

Excellent networking event. The sponsorship was well worth it.”


Manager, ATL

View More