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The federal government, through the Australian Renewable Energy Agency (ARENA), has announced it will jointly fund a new large-scale, grid-connected battery located in western Sydney.
On behalf of the Australian Government, ARENA will provide up to $11.5 million in funding to TransGrid to build a 50 MW / 75 MWh large-scale, grid-connected lithium ion battery at its Wallgrove substation in western Sydney.
The NSW state government will also provide $10 million in funding for the battery, as part of their $75 million Emerging Energy Program.
The $61.9 million Wallgrove Grid Battery, owned and operated by TransGrid, will provide fast frequency response and inertia services to the NSW transmission network.
ARENA CEO, Darren Miller, said TransGrid’s Wallgrove Grid Battery aims to prove large scale battery storage is the most effective solution for managing system inertia as Australia transitions to renewable energy.
“Energy storage is one of the priority technologies under the Australian Government’s first Low Emissions Technology Statement released last month, and ARENA has already played a key role in supporting the commercialisation of battery storage,” he said.
“Large scale batteries have a big role to play in firming and balancing our electricity system as we move towards a future energy mix with higher penetration of renewable energy.”
The Wallgrove Grid Battery will be designed and constructed by Tesla using their Megapacks to demonstrate its innovative synthetic inertia product known as “Virtual Machine Mode”.
The battery will be dispatched by Infigen Energy who will trade the battery in the wholesale market and frequency control ancillary services (FCAS) markets.
ARENA has previously supported five grid scale batteries including the Hornsdale Power Reserve expansion, the ESCRI and Lake Bonney batteries in South Australia and two in Victoria at Ballarat and Gannawarra.
“The Wallgrove Grid Battery will demonstrate the technical capability of batteries with advanced inverter capabilities to substitute traditional inertia. In doing so, TransGrid will demonstrate that batteries can provide the most cost-effective solution for NSW’s projected upcoming inertia shortfall,” he said.
TransGrid’s executive manager of strategy, innovation and technology, Eva Hanly, said finding low-cost energy solutions was a priority for transforming the energy sector.
“This will be the first battery in NSW to pilot grid scale synthetic inertia as a network service,” she said.
“It’s a step forward for the NSW grid and the National Electricity Market. This innovation will help accelerate the industry’s transformation to a low-carbon energy system, at a lower cost to customers.”
Infigen’s managing director and CEO, Ross Rolfe, AO said the company’s agreement with TransGrid shows that Infigen continues to be at the forefront of the clean energy transition in Australia.
“Our arrangement allows Infigen to sell more clean energy to customers and allows TransGrid to improve the strength of the network in Australia. It is also pleasing to see Infigen continuing to grow rapidly, supported by the resources and expertise of our new controlling security holder, Iberdrola,” he said.
In January 2020, the Australian and NSW state government signed a Memorandum of Understanding to jointly fund initiatives that lower prices for consumers, reduce emissions and strengthen grid reliability.