Largest battery in Australia to be built at ageing NSW coal-fired power plant
By business reporters Gareth Hutchens and Emilia Terzon
Posted TueTuesday 12 JanJanuary 2021 at 2:37pm, updated WedWednesday 13 JanJanuary 2021 at 11:47amThe battery will allow Origin to use the Eraring plant's existing infrastructure and network connections.(AAP/Greenpeace, File)Share
Key points:
- Origin Energy wants to build Australia's largest battery
- The 700MW battery will be installed in the NSW Hunter region
- It will be four times bigger than the Tesla battery in South Australia
If built, Origin said it would have capacity to supply that power to the grid for four hours.
Battery will use plant's existing infrastructure
The mega-battery will be built in three stages, with the first stage to be completed late next year.
Race is on for Australia's biggest battery
If built, it could supply that power for two hours.
The project's backers claim it will be able to store enough energy in reserve to power over one million Victorian homes for half an hour.
As of October 2020, Neoen has over 1.6 gigawatts of renewable assets in operation or under construction in Australia, representing over $3 billion in investment, and it intends to reach 3 gigawatts, worth about $6 billion, by 2022.
Origin's proposed 700MW battery, and Neoen's 500MW battery in western NSW, will be the two largest storage devices in the world, and will be worth a combined $1 billion.
Origin's battery will be four times larger than Tesla's
Marnie Shaw, a research leader in the Battery Storage and Grid Integration Program at the Australian National University, said it was a "big announcement".
"The new battery, to give an idea of the scale, is more than four times the size of Australia's largest battery in South Australia at Hornsdale," Dr Shaw said, referring to the Tesla battery owned and operated by Neoen (Dr Shaw is a research partner with Neoen).
"I'm surprised because we're not used to big numbers like this with batteries, but also not surprised as it's so needed.
"It's the important next step to support the very large-scale installation of renewable energy projects in NSW.
"It's conveniently making the most of transmission assets that are already existing at Eraring.
"You make use of substations that are already there and the powerlines. The batteries will be providing an important role in stabilising the power grid as we move to renewables."
The Tesla battery has supported South Australia's renewable energy generation.(AC News: Charles Brice)Dr Shaw said coal-fired power stations became increasingly unreliable as they aged, so you needed batteries near them to provide stable power security and stabilisation.
"Plus, to be powered by renewable energy you need stable power storage," she said.
"There's a huge amount of investment going into renewable energy in NSW."
The Australian Energy Market Operator (AEMO) told the ABC that with the new projects being proposed there was now almost 7000MW of battery storage in the planning across Australia.
It said this was enough to supply power for 3.5 million homes for 2.5 hours.
Dr Shaw said the private sector would also benefit from more policy certainty from the Federal Government.
"It would definitely be better to have more clear signals from the Federal Government about their strategy of supporting investment in renewables going forward," she said.
"That would allow smaller companies to be able to play a role in the transition as well as there'd be less financial risk.
"The Australian Energy Market Operator has a plan — the integrated systems plan — but again it would benefit from Federal Government support.
"People should care about these batteries because they support our transition to a low carbon economy, which is reducing the impacts of climate change, energy prices, and supporting new investment and jobs in Australia."
A major step to low emissions future
Tony Wood, an energy analyst with the Grattan Institute, said Origin's battery plan was a major step towards a transition to a low emissions future.
"And I think what you can see here is companies looking to get ahead of those changes, so they're well positioned when the opportunities start to arise," he told ABC Radio.
"This isn't going to be built tomorrow but getting even the first phase of this built by the end of next year is a pretty aggressive timetable.
"I'm sure this is going to be one of the most interesting [battery projects], but it won't be the last," he said.
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