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Australian wholesale energy prices in June quarter tripled from last year, market operator says

29 Jul 2022

 

Australian wholesale energy prices in June quarter tripled from last year, market operator says

Aemo executive says need for renewables is ‘urgent’ as failing coal-fired power plants and global gas costs cause prices to surge

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Wholesale electricity and gas prices tripled in Australia’s main grid in the June quarter compared with a year ago, as failing coal-fired power plants and soaring global gas costs combined to create “unprecedented” market disruptions, the Australian Energy Market Operator said.

Aemo’s quarterly market dynamics report found average spot prices for electricity in the national electricity market, which serves eastern Australia, averaged $264 per megawatt-hour across the quarter. That’s more than double the previous high of $130 in the first quarter of 2019 amid droughts and heatwaves, and a little more than three times the average price in the June quarter of 2021, which was $85.

Gas prices averaged $28.40 per gigajoule in east coast markets, up 246% on 12 months ago, and almost triple the previous record of $10.74/GJ set in the September quarter last year.

Violette Mouchaileh, executive general manager at Aemo, blamed the price surge on high global prices for fossil fuels, outages at coal-fired power plants, supply issues, and the deepest cold snap to start a winter “in decades”.

“What’s clear is the urgent need to build out renewable energy with diversified firming generation – like batteries, hydro and gas – and transmission investment to provide homes and businesses with low-cost, reliable energy,” Mouchaileh said.

The price rises may have been higher if not for the imposition of price caps during several weeks in the quarter, and the first suspension of trading in the national electricity market since its creation in 1998.

The spike in prices has already partly been passed on to households and consumers through their retail bills, but more imposts are to come.

The activation of a payment system to reward companies for reducing energy demand – known as the Reliability and Emergency Reserve Trader – cost about $86m. Compensation costs for losses incurred after authorities ordered power generators back into the market and during the market suspension in June “cannot yet be estimated as claims are still being received and assessed,” Aemo said.

Another measure of the struggle to meet demand during the quarter was the record number of so-called “lack of reserve” conditions declared by Aemo. These rose to 406 separate events – or more than four on average a day – during the three-month period, compared with 36 in the first quarter of this year and 73 in the June quarter of 2021.