Australian grid teeters on edge of blackouts tonight

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The Queensland grid is in crisis — the forecast price for nearly the entire next 24 hours is 15,000 per megawatt hour.

I have never seen a graph like this one. It’s a “white knuckle ride” as Paul McArdle describes it. The IRPM (or Instantaneous Reserve Plant Margin) is just 8%. “This shows total Available Generation of 31,679MW ready to supply aggregate ‘Market Demand’ of  of 29,201MW at this point … so a surplus of only 2,478MW NEM-wide.” But only last week there was a record day where the grid demand was 32,000MW — the highest winter demand day for years.


Reserves are incredibly thin, not just in Queensland, but also in NSW.


Market Notices from the AEMO are flowing like confetti. There is an Actual Lack of Reserve Level 2 (LOR2) in Queensland as of 6pm to 8pm. There is an LOR2 running for NSW as well, and an LOR1 for Victoria. If things shift up to LOR3 that means blackouts are likely, and LOR3s are forecast — in QLD tonight and in NSW tomorrow night. The margins are thinner than they look. Because extra generation on one part of the grid may be 3000km and an interconnector or two away from where it is needed. The interconnectors have complicated automated rules about flow to try to avoid black-state situations and to minimize prices.

There is almost no unreliable intermittent renewable energy available to use during this peak time

This graph shows how much the entire renewable revolution is helping at this moment in Australia. The graph also shows “Battery storage” so people can see how much it is contributing. To notice the microscopic sliver of red battery power flicker on and off, go to and tick-untick the battery box.

Everyone will blame “the failure of coal” but anyone can see that more solar panels and wind turbines wouldn’t solve anything tonight.

There is almost no solar, wind power or battery power available.  |

Coal power is obviously the mainstay of the grid

Those sources from the bottom are black coal, brown coal and natural gas. The light blue is hydro power. Everything else is trivia.

Coal is keeping the grid running.   | 

Updating this page…

Qld at risk of blackouts amid price cap

Australian Financial Review

The national energy market operator is having to direct electricity generators in Queensland to switch on plants to avoid blackouts, after the introduction of controlled prices in the state left some generators unprofitable. Despite the orders, Queensland is at risk of potential blackouts later on Monday because of a deficit in supply, the Australian Energy Market Operator signalled, by forecasting a level-three “lack of reserve” notice.

“The wheels seem to have fallen off the energy market,” said power market watcher Paul McArdle at specialist information service Global-ROAM. He noted AEMO has forecast that 1454 megawatts of demand could be “interrupted” at 5.30pm, a load “about the size of Brisbane”.

An extended period of extreme electricity prices triggered a rarely-used cap on wholesale power prices in Queensland on Sunday evening, of $300 a megawatt-hour.

Price caps and emergency rules are in action. Generators are being called up to perform whether they like it or not. But some are short of fuel, and any group ordered to supply can ask for compensation payments. In Queensland a cumulative total of seven days in a row topped $1.36 million so the “price cap” was triggered for the first time.

The renewable wonderland of South Australia is tonight running on fossil fuels:

Specifically, South Australia is currently using natural gas, diesel, and fuel oil to keep the lights on. The price is $272/MWh, with about 2GW being used at 7.40pm local time near the end of the highest peak for the day. Prices are also forecast to be at risk of tripping the cap of $15,000 in the next hour, but they may not. Tasmania is almost all hydropower at the moment, but prices are $440/ MWh at the moment. The same interconnectors that allow electricity to flow also allow blistering high prices to flow throughout the system.

SA is running on fossil fuels. That’s natural gas, diesel and fuel oil.

h/t Old Ozzie, Rafe,

via JoNova

June 13, 2022