A Tesla Powerpack recently intervened to save the day when a coal-fired plant at the Callide Power Plant in Queensland, Australia, exploded. Teslarati reported that the explosion resulted in massive blackouts from the New South Wales border to Cairns, with more than 470,000 customers affected. The explosion also caused a cascading impact on the Queensland grid.
After the chaos that followed, the Hornsdale Power Reserve, a Tesla Powerpack system in South Australia, stepped in. The reserve was recently extended to 150 MW / 194 MWh. Teslarati noted that the ginormous battery was able to respond immediately to widespread power cuts and quickly dove into some of the new battery tools. These tools include the ability to provide synthetic inertia, which allows the battery to slow down the rate of frequency changes that occur as a result of dramatic events, such as a coal-fired power plant explosion cutting off power to the battery. a large area.
Renew the economy reported that Hornsdale’s power reserve reacted instantly when the frequency in the grid dropped to a minimum of 49.6 Hz before rising to 50.1 Hz when the load was lost. The battery was able to do this in just two seconds. Think about this for a moment –– it took two seconds for a Tesla Powerpack to respond to a national crisis. We need more in the world.
The Hornsdale power reserve is owned by Neoen, a French renewable energy company. “This shows that Virtual Inertia Mode is hoping to catch these things even sooner,” said Neoen Director of Development Garth Heron. “This is the future.”
During a webinar hosted by the Australian Renewable Energy Agency, Behrooz Bahrani of Monash University spoke about the subject of inverters forming the grid – and where the Hornsdale results were prevented – noting that it was clear that the battery storage can provide inertia and “system strength.” He stressed that network operators need to think beyond the old parameters. “We need to go beyond synchronous generators,” he said. “We need to think about what batteries can do with other and not just focus on imitating synchronous generators. “
Heron said it was clear from testing at the Hornsdale battery that inverter-based technologies can provide the same inertia responses as synchronous machines that are twice their size. The article noted that it reinforced the fact that battery storage has multiple skill and service levels. Some of these are not yet recognized by the market, but the trick is to get a control system that provides the right battery response in all situations.
Josef Tadich, Senior Director of Engineering at Tesla, moderated the webinar and said batteries can be customized for specific grid conditions. This particular response has been provided in parallel with the traditional primary frequency control, energy market allocation and forced start services. In one Post on LinkedIn, Tadich wrote:
“We have been working hard over the past few months to implement Virtual Machine Mode (VMM) at the 150 MW Hornsdale power reserve. The silver lining of the recent “Callide” generator emergency event provided a useful data set to assess the true response of our inverters: a declining rate of change of frequency (RoCoF) of around 0.2 Hz / s. and a frequency nadir of nearly 49.6 Hz.
“As Gilles Parkinson was quick to point out in the data, VMM mimics the response of a synchronous generator and provides an inertial response resistant to the change in RoCoF, injecting power during the frequency drop to minimize the nadir and stabilize the transition to the recovery of the RoCoF. Primary frequency control to the Normal Operating Frequency Band (NOFB). The VMM also provides a voltage smoothing function to resist the change in the underlying voltage waveform, thus providing a source of force to the system.
“The advantage of batteries is that these inertial parameters can be customized for specific grid conditions, and this response is provided in parallel with traditional primary frequency control, power market allocation and forced start services. . This is a key issue the industry is working on as the market replaces traditional synchronous thermal generation and accelerates the transition to higher penetration of renewables.
Not only does this prove that batteries like the Tesla Powerpack can save the day when it comes to fossil fuel industry failures, but it proves that batteries are indeed the future of energy. Economic times recently reported that battery storage is cheaper than new coal power and noted that a new economic viability analysis has shown that renewables as well as battery storage in Tamil Nadu are competitive with new power plants charcoal. You can read more about it here.