Powering Australia’s Digital Future: Why Renewable Energy and Data Centres Must Grow Together

Australia sits at a pivotal moment in its energy transition. With world-class solar and wind resources, ambitious decarbonisation targets, and growing investor confidence, renewable energy development is accelerating across the country. At the same time, demand for digital infrastructure is rising sharply. Cloud computing, artificial intelligence and data-driven services are driving a rapid expansion for data centre capacity - positioning Australia as an emerging hub for the digital economy in Asia Pacific.

Yet despite strong fundamentals on both fronts, progress has been slower than many anticipated. Large-scale renewable energy projects and hyperscale data centres alike face long development timelines, complex approval pathways and increasing uncertainty around grid access and power reliability. A key reason is simple: while both sectors are advancing quickly, Australia has limited experience in bringing them together in a coordinated, integrated way.

This presents both a challenge and a significant opportunity.

Two emerging industries, one shared dependency

Renewable energy and data centres are often treated as parallel growth stories. In reality, they are becoming increasingly deeply interdependent. Data centres require large volumes of affordable, reliable, and increasingly low‑carbon electricity. Renewable energy projects, in turn, benefit enormously from having large, creditworthy off-takers that can underpin long-term power purchase agreements and accelerate financial close.

Globally, this “marriage” between renewables and data centres is already reshaping energy markets. In the United States and parts of Europe, data centre operators are actively partnering with renewable energy developers - sometimes co-locating projects, sometimes structuring virtual or physical PPAs - to secure clean and reliable power while supporting new generation capacity.

Australia is beginning to see early signs of this “relationship” , but it remains far from business as usual. Many developers and operators are still navigating unfamiliar territory, with questions around risk allocation, grid capacity, reliability standards and regulatory pathways slowing decision-making. In an environment where both industries are scaling simultaneously, uncertainty on either side can quickly stall progress.

Why progress remains slow in Australia

Australia has relatively few reference projects that integrate data centre loads with new renewable energy supply in a structured way. That said, the landscape is shifting quickly. The Australian Government’s publication of Expectations of data centres and AI infrastructure developers in March makes clear that new digital demand must be matched by additional clean energy and storage. Recent announcements, including Amazon Australia’s largest renewable energy investment in the country to date, signal that new capacity is beginning to come online, with a further 430 megawatts (MW) of renewable energy expected to be added to the grid.

Grid connection is a major constraint. Access to power has become one of the key gating factors for data centre development, particularly in metropolitan and peri-urban areas. At the same time, many of Australia’s best renewable energy resources are located remotely, raising questions around transmission, losses, latency and resilience.

Crucially, grid connection is not a one-size-fits-all challenge. The optimal solution depends on location, scale, load profile, and local network reliability. Some projects may rely on grid-connected renewables backed by batteries; others may require hybrid solutions incorporating on-site generation, storage, and traditional firming technologies. In all cases, reliability expectations for data centres are non-negotiable—and must be engineered deliberately, not assumed. That’s where Ramboll’s globally gained experiences and multidisciplinary capabilities play a crucial role - advising data centre developers and customising solutions that are aligned with Australian Government priorities around national interest, the energy transition, and sustainable water usage.

Collaboration as a catalyst for growth

Closer collaboration between renewable energy and data centre developers offers a pathway through these challenges. Early alignment on power strategy can unlock multiple benefits: faster approvals, improved bankability, reduced strain on existing networks, and stronger community acceptance.

From a regulatory perspective, there are also signs that policy frameworks are evolving. Across Australia, reviews are underway to assess how major energy users interact with the grid, and whether projects that proactively support new generation, storage or demand management should benefit from more streamlined approval pathways. While these mechanisms are still taking shape, the direction of travel is clear: integrated energy solutions will increasingly be favoured over standalone demand.

For data centre developers, this means thinking beyond the grid connection application. For renewable energy proponents, it means designing projects with large, long-term loads in mind. And for both, it means engaging early with advisors who understand how the full system fits together.

Bringing global experience to a local context

This is where experience across both industries becomes critical. Ramboll has been supporting renewable energy and data centre projects globally for many years - across North America, Europe and Asia - often at the intersection of energy systems, digital infrastructure and regulatory environments.

That dual capability matters. Delivering a data centre is not just about securing green electrons; it is about designing a power system that delivers resilience, redundancy and performance under real-world conditions. Likewise, delivering renewable energy projects that can reliably serve large, sensitive loads requires deep understanding of grid behaviour, storage, firming and system integration.

In Australia, where both sectors are still building momentum together, global lessons can help clients leapfrog lengthy trial-and-error phases. By combining international experience with strong local knowledge - of networks, planning regimes and stakeholder expectations - tailored solutions can be developed for each project’s specific context.

Critically, there is no single blueprint. The right answer for a remote AI-driven data campus will differ from that of a metropolitan cloud facility. The role of an experienced advisor is to navigate these different scenarios, align stakeholders, and help projects progress with confidence.

Ramboll has been exploring opportunities in heterogeneous supply mixes for Data Centres for some time. These solutions increase the redundancy of supplies and aim at bringing the overall costs down.

The Australian Energy Market Commission released a draft rule proposing new technical standards for large data centres connecting to the National Electricity Market. The work on the standards is ongoing, but once published, the stricter technical requirements would apply to loads most likely to affect power system security. It is also understood that the new standard would define the required behaviour of the plants during faults and voltage disturbances. Ramboll can leverage our global experience from other countries where a similar set of requirements is already in place to support the feasibility and grid studies.

A shared future, built together

Australia’s renewable energy transition and its digital infrastructure expansion are not competing agendas - they are mutually reinforcing. As data demand grows, so too does the need for clean, reliable power. As new renewable capacity is being planned, large energy users can provide the commercial backbone that enables it and then sustains it.

The next phase of growth will depend on how effectively these two industries collaborate. By breaking down silos, sharing risk, and drawing on proven global experience, Australia has the opportunity not only to keep pace - but to set a benchmark for integrated, future-ready development.

The foundations are already being laid. The question now is how quickly—and how boldly—we build on them.