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Hornsdale Tesla Big Battery and wind farm, courtesy of Tesla.

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2025 Target For Australian Grid To Be Able To Handle 100% Renewable Energy

As Australia’s electricity grid moves towards higher and higher concentrations of renewable energy, the newly appointed head of the Australian Energy Market Operator is pushing for the ability to handle a peak of 100% renewables entering the grid. In a recent speech, Daniel Westerman set 2025 as the target date.

Predictably, some in the conservative federal government have scoffed at this and repeated the same arguments as the past. The grid won’t cope, it still needs coal as a baseload and gas as a peaker for times of high demand. The Federal Resources Minister, Keith Pitt, stated recently that needing a grid that can handle periods of 100 per cent renewable energy is “absolute nonsense.” Has he heard of batteries? Yes, he has, but doesn’t believe they are up to the job. He recently would not admit when questioned by a reporter that batteries were dispatchable power. In fact, they are much quicker to respond and more flexible than gas peaker plants.

All the while, the Australian states move inorexably closer to 100% renewable. Tasmania is well endowed with hydro power and has been 100% renewable for a long time. It has plans for a huge wind farm so it can become the battery of the nation. Strangely, the federal government doesn’t criticise or mock them. South Australia (home of Tesla’s “Big Battery”) is already peaking at 100% power derived from wind and solar. They are aiming for 400% and cheap power to restart heavy industry (making green steel and hydrogen). 

Western Australia (which has a standalone grid) is reaching peaks of 65% already, especially during the midday sun. The other states are running about 30% depending on the time of day. Australia has very little wind power connected at the moment, but there are many gigawatts of generation in the pipeline (maybe we need a better metaphor — I’d appreciate some suggestions). 

The fly in the ointment is that the federal government funds the interconnectors between states. Recently, 3 adjoining states have decided to go it alone and build the interconnectors themselves. This will be a boon to South Australia, as it will be able to export excess power generation rather than having to curtail its wind and solar farms. 

Thankfully, business leaders, state governments and consumers have learnt to ignore the feds and keep on putting in rooftop solar, home batteries, solar farms, and wind farms. One wonders when Pitt will wake up — the sun is shining, the wind is blowing, and we don’t need fossil fuels anymore.

 
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Written By

David Waterworth is a retired teacher who divides his time between looking after his grandchildren and trying to make sure they have a planet to live on. He owns 50 shares of Tesla [NASDAQ:TSLA].

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