Coal power improves with two back-in-line units

AGL brought Unit 2 of its giant Bayswater power station online on Sunday, after losing half of its capacity at the coal-fired plant earlier this month. Three of the four units at Bayswater, the second largest power station in the National Electricity Market (NEM), are now all in service. Unit 3 is due back in early July, according to company data.

Energy Australia said its two Mount Piper generating units were now back online after “successful maintenance carried out over the weekend”, but its capacity could be limited by a shortage of coal.

“An ongoing challenge at Mt Piper is that the power station is almost solely dependent on the nearby Springvale mine. Production and deliveries are below expected levels in 2022,” said Mark Collette, managing director of EnergyAustralia.

Mr Collette added that its Yallourn power station in Victoria currently has three generator sets in operation, with a fourth due to be back in service at the end of the week. But this increased production will be short-lived as she has to take another unit offline for service.

“Once this unit returns, we will need to take another unit offline for maintenance. We will liaise closely with the Australian Power Market Operator on the appropriate times,” Mr Collette said.

A power outage at AGL’s Loy Yang A coal-fired power station, which supplies about 30% of Victoria’s electricity, is the biggest source of missing capacity in Victoria. On June 10, AGL advised of an extension of the stoppage by at least six weeks, pushing back its return date to the second half of September.

Earlier this month, NSW’s largest coal-fired power station, Eraring, announced it could not operate at full capacity due to deep cuts in coal production at Centennial Coal’s Mandalong mine, which is connected by a long conveyor belt to the aging power plant owned by Origin Energy. .

Moody’s said Friday that the AEMO’s suspension of the electricity dispatch market is a “negative credit” for the generation assets of AGL Energy and Origin Energy, as their dispatch prices are now capped.

Alan A. Seibert