If you’ve followed Australia’s energy transition over the past decade, you’ve probably noticed a shift in the conversation around natural gas.

For years, the focus was on reducing Australia’s reliance on fossil fuels by expanding renewable energy, electrifying homes and businesses, and encouraging alternatives to natural gas wherever possible. More recently, however, governments have begun acknowledging that gas will continue to play an important role in Australia’s energy system for the foreseeable future.

So what changed?

Did governments simply reverse course, or has the reality of the energy transition proven to be more complex than many initially expected?

This topic is one I have watched evolve over many years. In 2010-2011, as a Scheduling Stakeholder Manager at APA Group, I built a career across infrastructure, energy, and major project delivery. During that time, I’ve seen the conversation shift from expanding gas infrastructure to encouraging electrification, and now towards recognising that a balanced energy system requires multiple technologies working together.

The original push to reduce gas use was driven by several important objectives. Australia committed to reducing greenhouse gas emissions, and while natural gas produces fewer emissions than coal for electricity generation, it is still a fossil fuel. At the same time, rapid investment in wind farms, solar farms, battery storage and new transmission infrastructure created confidence that renewable energy could increasingly replace traditional generation sources.

Governments also encouraged greater electrification. Reverse-cycle air conditioning, induction cooktops and electric hot water systems became popular alternatives to gas appliances, while some states introduced policies limiting or discouraging new gas connections in residential developments. Victoria’s Gas Substitution Roadmap, for example, aimed to progressively reduce reliance on gas by supporting all-electric homes and businesses.

For many people, this appeared to signal that natural gas would gradually disappear from Australia’s energy mix; the reality, however, has proven more complicated. Renewable energy continues to grow at an extraordinary pace, but electricity systems require more than generation alone. Wind and solar output changes with weather conditions, electricity demand fluctuates throughout the day, and while batteries are transforming the grid, most currently provide shorter-duration storage rather than supplying electricity continuously over extended periods.

Gas-fired generation remains valuable because it can respond quickly when electricity demand increases or renewable generation falls unexpectedly. It provides flexibility that helps maintain system reliability while the broader energy transition continues.

Gas also plays a much larger role than many people realise. Beyond electricity generation, it remains essential for many manufacturing processes, food production, chemical manufacturing, fertiliser production, mining and other industries where practical alternatives are not yet available at scale.

At the same time, Australia’s electricity demand continues to grow. Population growth, electrification, electric vehicles, artificial intelligence, data centres and advanced manufacturing are all increasing the amount of electricity the network must deliver reliably every day.

These realities have shifted the conversation, and rather than asking whether Australia should rely solely on one energy source, governments, market operators and industry are increasingly focused on how different technologies can work together to deliver a reliable, affordable and lower-emissions energy system.

Recent announcements by the Australian Government proposing a Domestic Gas Reservation Scheme reflect this changing approach. The proposal is intended to improve domestic gas supply, strengthen energy security and help place downward pressure on prices while Australia continues investing heavily in renewable energy, batteries, pumped hydro and transmission infrastructure, and this doesn’t mean Australia has abandoned its renewable energy ambitions, far from it.  Renewable generation continues to expand rapidly, supported by significant investment in transmission, storage and grid modernisation. What has changed is the growing recognition that large-scale energy transitions take time and require multiple technologies working together to maintain reliability while new infrastructure is planned, approved and delivered.

One of the biggest lessons from Australia’s energy transition is that infrastructure is rarely as simple as it first appears. Every decision involves balancing environmental outcomes, affordability, reliability, community expectations, industrial needs and long-term planning. Energy transitions are not built around a single technology; rather, they rely on finding the right combination of technologies to meet society’s changing needs.

That’s why gas is back in the conversation—not as a replacement for renewable energy, but as one component of a much broader and more complex energy system that continues to evolve.

Energy 101 Takeaway

The discussion around gas hasn’t simply gone backwards. It has matured. As Australia’s energy transition progresses, the focus is increasingly on balancing emissions reduction with affordability, reliability, energy security and the practical realities of delivering one of the largest infrastructure transformations in the nation’s history.

Written by Tarnia Riggs.

Disclaimer: Energy 101 is an educational series designed to explain complex energy and infrastructure topics in plain English. It is intended to improve public understanding and should not be interpreted as policy, investment, engineering or legal advice.

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