Seven Xcelerate Sydney Lessons for APAC Energy Planning

The Asia-Pacific (APAC) region sits at the sharp end of the global energy transition. It's home to some of the world's fastest-growing economies and heavy energy consumers, some of the most ambitious renewable energy targets, and some of the most complex grid challenges on the planet.

Coal still dominates large parts of the region's generation mix, even as solar and wind scale at a pace that's outrunning the planning frameworks designed to manage them. Demand is surging, driven by population growth, industrialization, and a new wave of AI data centers spreading across the region. And the pressure to decarbonize is intensifying, from government net-zero commitments stretching to 2050 and beyond to corporate clean energy buyers demanding provable, hour-by-hour progress.

At Xcelerate Sydney, energy modelers, planners, engineers, and decision-makers from across APAC came together to share how they're navigating it all. After three days of sessions, hosted by industry leaders, here’s what they’re telling us about the state of the energy transition across the region.

How should planners make better battery-storage investment decisions?

The conversation around battery storage has matured significantly. The question is no longer whether to build – it's how to make the right call on size, location, and timing in markets that look very different from each other. Storage is being asked to pick up the reliability work that coal used to do quietly in the background, and the pressure to get those decisions right is intense.

Why must APAC planning test outcomes beyond the average case? 

In a grid built around predictable coal and gas, modeling for average conditions was good enough. In a renewables-heavy system, it isn't. The real risk, and the real value, shows up in the moments that sit well outside the average – the wind drought, the unexpected demand spike, the price event that makes or breaks a storage asset's business case. Across APAC, there's a growing recognition that energy planning needs to account for that full range of possible futures, not just the middle of the distribution.

Why does APAC need long-term, system-wide energy planning?

Net-zero pathways to 2050 and beyond. Full coal phase-outs. Industrial decarbonization programs spanning entire supply chains. The ambition of what's being planned across APAC right now is genuinely unprecedented. There are live investment decisions with billions of dollars attached, being made in fast-moving markets where getting the long-term picture wrong has real consequences.

How can planners balance decarbonization with reliability?

Building a cleaner grid and keeping it reliable are two different problems. And, across APAC the gap between them is becoming more visible. As coal exits faster than planned replacements can arrive, grids are being exposed to reliability risk that didn't exist a few years ago. Weather variability, geopolitical supply disruptions, and surging data center demand are adding further pressure. The lesson coming through clearly is that least-cost planning isn't enough, you need to stress-test your system against the scenarios that aren't supposed to happen, because in a transition this fast, they often do.

Start Planning for Reality

PLEXOS®  gives energy teams across APAC the analytical depth to plan confidently in complex, fast-moving markets. 

What role should AI play in energy-modelling workflows?

Across APAC, the gap between the complexity of energy decisions and the capacity to analyze them is widening and modeling teams are being asked to deliver more without more resources.

The answer: smarter workflows. With accelerating diagnostics, validation, and scenario analysis without replacing the expertise behind them, the goal of AI in energy modeling is accelerating modeling workflows, supporting expert judgement, and freeing modelers from repetitive tasks and manual steps.

How does whole-system modelling support industrial decarbonization?

One of the most significant shifts on show at Xcelerate was how far energy systems thinking has moved beyond the electricity grid. Green hydrogen, green ammonia, green steel, electrified mining – APAC's heavy industries are under real pressure to decarbonize, and they're turning to the same kind of system-level optimization that power planners have relied on for years. The insight is straightforward but powerful – when you model the whole value chain rather than individual assets, you find savings that are simply otherwise invisible.

Why must energy planning adapt to local APAC market conditions?

The energy transition in APAC isn't one story – it's dozens, running simultaneously, each shaped by a completely different set of starting conditions.

• Coal-heavy grids trying to decarbonize fast.

• Emerging markets scaling renewables onto systems that are still being built.

• Island grids with no interconnection and unique resource profiles.

• Industrial titans electrifying operations that run around the clock.

What works in one market rarely translates cleanly to another, and any planning approach that can't flex to local conditions isn't much use.

These ideas are being worked on right now by utilities, governments, miners, and investors across APAC, under real-time pressures with real money on the line. What they have in common is the need for energy modeling that can handle complexity.

As the leading energy modeling platform, PLEXOS® gives teams the analytics power to model any energy system with the depth and flexibility that high-stakes decisions demand. Whether that's running thousands of probabilistic scenarios to stress-test a grid, optimizing a long-term generation expansion plan, co-optimizing storage with network constraints, or modeling a green hydrogen value chain from production to export. PLEXOS® brings it all into a single, trusted framework.

In a region moving as fast as APAC, the difference between a good decision and a costly one often comes down to the quality of the analysis behind it. PLEXOS® exists to make sure that analysis is as good as it can be.

Confident Decisions Start with Better Modeling  

 From minimum demand events to storage sizing, PLEXOS®  gives planners the clarity to act on what the data tells them.