15 August, 2025
agl-accelerates-battery-investments-as-fossil-fuel-costs-rise

AGL, Australia’s largest power generator, is ramping up its investment in battery technology as it grapples with rising costs linked to outages at coal-fired power stations and soaring prices for coal and natural gas. Following an earnings report that fell short of market expectations, AGL’s share price plummeted by as much as 13 percent on November 8, 2023, prompting a sharp sell-off among investors.

The company attributed the decline in earnings primarily to lower wholesale electricity prices and its strategy of not fully passing on rising costs to its more than 4 million customers. Analysts noted that a series of planned and unplanned outages across AGL’s power station fleet prevented the company from capitalizing on higher wholesale prices.

Investing in a Sustainable Future

AGL’s Chief Executive, Damien Nicks, highlighted the improved performance of the company’s expanding fleet of grid-scale batteries. These batteries, along with hydropower and gas-powered generators, are enhancing the flexibility of AGL’s energy portfolio and helping to offset the consequences of coal plant outages. “We saw the performance of our flexible asset fleet really coming into its own,” Nicks stated. “Those flexible assets are doing exactly what we intend for them to be doing – the response of the batteries was fantastic.”

The rapid response times of grid-scale batteries are crucial for Australia’s transition to green energy. These systems can absorb excess renewable energy during the day and discharge it when needed, stabilizing the energy supply during unforeseen outages. AGL currently operates two battery facilities at Torrens in South Australia and Broken Hill in New South Wales, with plans for another battery to be operational next year at the site of the decommissioned Liddell coal plant.

Strong performance from the battery operations has prompted Nicks to express confidence that the earnings generated from this sector will “more than offset” the rising costs expected from new coal and gas agreements over the next three years.

Challenges Ahead

Despite the optimism surrounding its battery investments, AGL faces significant challenges in the current energy landscape. The company is under pressure to address the reliability of its coal-fired power generation while navigating the volatility of fossil fuel markets. As coal and gas supply contracts become more expensive, the need for a robust and flexible energy solution is ever more pressing.

The transition towards renewable energy sources, paired with investments in battery technology, positions AGL strategically for the future. However, the path forward will require careful management of both operational challenges and financial sustainability. As AGL navigates this complex environment, its focus on innovative energy solutions will be crucial in maintaining its leadership position in the Australian power sector.