The demolition of the towering chimneys at Liddell Power Station on 26 May 2026 marked more than the removal of two familiar structures from the Hunter Valley skyline. It underscored the accelerating transformation of Australia’s electricity sector as ageing coal-fired infrastructure gives way to new energy technologies.
For more than 50 years, the station’s twin concrete stacks stood above the region as symbols of an era when coal generation formed the backbone of the nation’s power supply. Standing 169 metres tall, the structures had become a defining feature of the landscape.
Bringing them down required meticulous planning. Engineers carried out extensive preparation work, drilling hundreds of holes into the concrete bases before carefully positioning explosive charges. The demolition sequence was timed with extreme precision so the stacks would collapse safely in a controlled direction. Dust suppression measures, including a water curtain, were also deployed throughout the operation.
While some community members favoured preserving the chimneys as industrial heritage landmarks, long-term retention presented significant challenges. The structures were designed to operate as part of a functioning power station, and once generation ceased, deterioration associated with moisture and ageing materials became a growing concern. Removing the stacks not only addresses future safety risks but also prepares the site for its next phase of development. More than 90 per cent of materials recovered through decommissioning are expected to be reused or recycled.
The closure of Liddell in April 2023, after 52 years of operation, inevitably raised questions about employment and the local economy. To ease the transition, a structured workforce program was introduced to support employees affected by the shutdown.
Workers nearing retirement were provided with redundancy options, while others were offered pathways into roles at nearby facilities. Additional training opportunities were established to help employees move into emerging sectors linked to renewable energy and associated industries. The focus was on creating practical alternatives rather than leaving workers to face an abrupt loss of employment.
Although coal generation has ended at Liddell, the site itself remains central to the region’s energy future. It is being redeveloped as the Hunter Energy Hub, making use of existing transmission connections, transport access and industrial infrastructure that would be expensive and time-consuming to replicate elsewhere.
A major component of this redevelopment is the Liddell Battery project. The battery is being constructed in stages, with an initial 250-megawatt installation already progressing through commissioning. Additional expansion is planned as the project grows. Once fully operational, the system will store surplus electricity generated during periods of strong renewable output and release that energy when demand increases, helping improve grid stability and support higher levels of renewable generation.
The changes underway at Liddell reflect a broader national trend. Australia is pursuing a target of sourcing 82 per cent of its electricity from renewable generation by 2030. Reaching that objective will require substantial investment across renewable projects, energy storage systems and transmission networks capable of maintaining reliability as older coal-fired stations continue to retire.
Recent generation figures highlight the pace of change. Renewable energy accounted for 36 per cent of Australia’s electricity production in 2024, driven largely by solar, wind and hydro power. By 2025, that share had reportedly climbed to 43 per cent. Battery adoption also expanded rapidly, with strong growth in both large-scale storage projects and household installations.
The fall of the Liddell chimneys was undeniably symbolic, but it also reflected a practical reality. Across the National Electricity Market, ageing coal assets are reaching the end of their operational lives. Replacing them requires a coordinated mix of renewable generation, storage capacity and supporting infrastructure. The transformation of the Liddell site offers a clear example of how former coal-fired power stations can be repurposed to play a role in Australia’s next energy chapter.
