Eight themes reshaping Australia’s energy transition

Australian Energy Week 2026 captured an energy transition moving deeper into delivery mode. 

Across sessions on renewables, transmission, batteries, data centres, consumers and market reform, a clear picture emerged: Australia has a large project pipeline, strong investor interest and maturing technology options, but execution risks are intensifying.

Demand growth is changing the scale of the task

The Australian Energy Market Operator (AEMO) CEO, Daniel Westerman, pointed to the scale of the system growth challenge, with electricity demand expected to nearly double by 2050. 

Australia is moving beyond replacement of coal generation, and expanding the power system to support electrification, industrial growth, data centres and new patterns of consumption.
Macquarie Asset Management Global Head of Green Investments, Ed Northam, called this a “perfect storm” that he has never seen in his 30-year career.

“A continued focus on sustainability, a dial-up in focus on affordability, on energy security, that has been exacerbated by recent global events,” Northam said. “At the same time we're seeing demand growth for the first time in my working career… and falling costs [of] renewables.

“All of that happening at the same time is quite a unique circumstance.”

Project delivery is under pressure

Leaders warned that strong renewable project pipelines are not translating into built assets quickly enough. 

Neoen Australia CEO Jean-Christophe Cheylus argued that projects need to start construction earlier to contribute meaningfully to 2030 targets.

Clean Energy Investor Group CEO, Richie Merzian, highlighted the gap between proposed projects and those reaching financial close, while renewable development sessions focused on grid connections, planning approvals and the difficulty of moving projects from development into construction. 

“While there has been progress, particularly in wind approvals, planning approval processes for major clean energy projects in New South Wales are just too slow, too uncertain, too costly,” Merzian said.

“The average timeframes in our most populous state remains the slowest in the country, and if we look at the last five years, on average, a wind project takes almost 1,400 days to approve. Solar, 1,100 days; batteries, 600 days. At the same time, planning fees in New South Wales can be three times higher than neighboring jurisdictions.

“These numbers matter, because every delay has a consequence – whether that's on the financing, procurement, contracting, grids, community, social license, or ultimately investor confidence.

“While planning reform is essential, it alone won't solve everything across the sector. Projects are still facing a number of bottlenecks.”

Transmission remains the central constraint

Transmission was repeatedly framed as one of the biggest barriers to the transition. 
Clean Energy Finance Corporation (CEFC) Executive Director Gloria Chan, as well as leaders at Transgrid, EnergyAustralia and Engineers Australia, pointed to planning delays, rising costs and social licence challenges as major constraints.

Discussions also highlighted that building transmission faster will depend on earning community trust while keeping projects affordable.

However, as HMC Capital Victorian Development Lead, Alicia Webb, noted:

“We want to hear the community's voice, and that is important. But nobody is served by spending 10 years talking about a wind farm, including the community.”

Existing assets need to work harder

Alongside the need for new infrastructure, leaders emphasised the importance of unlocking more capacity from the assets already in place. 

Gloria Chan, alongside Powerlink Executive General Manager Network Investment, Jacqui Bridge, and Australian Energy Market Commission (AEMC) leaders, discussed smarter planning, better data, dynamic operating approaches and greater optionality as ways to increase system efficiency and reduce pressure on new build.

Solstice Energy CEO, Phaedra Deckart, said:

“Many think the biggest risk to the energy transition is what we can build and how fast we can build it, but it's actually designing a system that only works well for some consumers and leaves others behind.

“When we talk about the energy transition, it's very easy for us to talk in terms of targets and pathways… but for most consumers, that's not how they experience the transition.

“If we decarbonise existing infrastructure… We reduce upfront cost disruption and barriers to participation. And this all matters.”

Batteries have moved to the centre of the system

Battery storage was discussed as a core part of reliability, pricing and grid planning. 

Daniel Westerman highlighted the growing impact of both household and grid-scale batteries, while battery and firming sessions explored how storage can support peaks, absorb excess renewable generation and help manage system volatility. 

The discussion extended from large-scale batteries to home batteries, virtual power plants and vehicle-to-grid.

Flexibility is becoming a system resource

Flexible demand, distributed energy resources (DER) and consumer-side participation are now being treated as central features of the future system. 

Daniel Westerman reinforced the role of flexible demand and DER in reducing the need for overbuilding generation and networks.

AEMC and retail sessions also focused on pricing, customer trust and the challenge of making complex energy products simple enough for consumers to use.

Data centres are reshaping demand and investment

Data centres emerged as one of the most significant new sources of electricity demand. 
Energy sector leader and advisor Kane Thornton, NEXTDC, AirTrunk, Transgrid and AEMO all addressed the scale, concentration and location challenges created by hyperscale loads.

“We are at the intersection of two major transformations,” AirTrunk Associate Vice President Energy and Utilities, Sabooh Whitelaw, said. “The energy transition and the digital transition are now deeply connected, and the success of one increasingly depends on the success of the other.

“Ultimately the success of the energy transition will not be measured solely by how much renewables we build, it will also be measured by how efficiently we build and operate the system we create.”

Whitelaw, Transgrid and AEMC also reinforced a “growth pays for growth” principle: large new users should contribute to the grid capacity they require, while offering flexibility, storage and long-term demand certainty.

Capital needs certainty

Financing sessions made clear that capital is available, but investor confidence is being tested.

Developers, financiers and executives cited higher interest rates, cost inflation, connection delays and revenue uncertainty as risks to project economics.

Ed Northam pointed to the importance of clearer long-term pricing and risk allocation to support investment in renewables, storage and enabling infrastructure.

Taken together, the major themes from Australian Energy Week show a transition entering a more complex phase.

The focus is shifting from targets and technology choices to delivery, coordination, market design and public trust.

Faster planning approvals, stronger transmission delivery, better use of existing infrastructure, flexible demand, storage and clearer investment signals will all shape whether Australia can build the energy system it now needs.