Imagine powering your home, your business, and even Australia’s heavy industries with an energy source that produces nothing but water vapor—no carbon emissions, no toxic byproducts, just clean power from the most abundant element in the universe. Green hydrogen, produced by splitting water using renewable electricity from our vast solar and wind resources, represents Australia’s most promising pathway to a truly sustainable energy future. Communities across Western Australia, Queensland, and South Australia are already witnessing pilot plants transform sunlight and seawater into exportable energy, creating local jobs while positioning our nation as a global clean energy superpower.

Yet beneath this exciting opportunity lies a tension we cannot ignore: producing green hydrogen requires substantial amounts of water—approximately nine liters for every kilogram of hydrogen—in a country already grappling with water scarcity challenges. As droughts intensify and competing demands from agriculture, communities, and industry increase, Australia faces a crucial question: how do we harness hydrogen’s potential without compromising our most precious resource?

The answer lies in intelligent optimisation—using seawater desalination powered by excess renewable energy, implementing water recycling systems that capture and reuse every possible drop, and strategically locating hydrogen facilities where water availability aligns with renewable energy abundance. Regional communities from Port Hedland to Gladstone are pioneering these integrated approaches, demonstrating that with thoughtful planning and innovative technology, we can achieve both our climate ambitions and water security goals.

This is your opportunity to understand how green hydrogen can work for Australia, what the real challenges are, and how solutions emerging right now in your region could transform our energy landscape forever.

What Green Hydrogen Actually Means for Australia’s Energy Future

The Water Question No One’s Talking About

Here’s something most conversations about green hydrogen conveniently skip over: water. Every kilogram of hydrogen produced through electrolysis requires approximately 9 litres of pure, demineralised water. That might not sound like much until you consider the scale of Australia’s hydrogen ambitions.

We’re talking about an industry that could demand billions of litres annually, and this water need sits uncomfortably alongside our reality as the driest inhabited continent on Earth. Many of our regional communities, particularly those in Western Australia, South Australia, and Queensland where hydrogen hubs are planned, already face water stress. Farmers are watching dam levels, towns are on restrictions, and now we’re adding industrial-scale hydrogen production into the mix.

The timing creates genuine tension. Australia experienced some of its worst droughts in recent decades, and climate projections suggest water scarcity will intensify. Meanwhile, green hydrogen facilities are competing for the same resource as agriculture, communities, and other industries including competing water demands from technology infrastructure.

This isn’t about abandoning hydrogen as a clean energy solution. Rather, it’s about having honest conversations in our communities about water allocation and ensuring hydrogen projects incorporate smart water management from day one. Solutions exist, including desalination powered by renewable energy and water recycling systems, but they need to be central to planning, not afterthoughts. Our hydrogen future depends on getting the water equation right.

The Real Cost of Water in Hydrogen Production

Where Australia’s Hydrogen Hubs Meet Water Stress

Australia’s hydrogen ambitions are taking shape across some of our most sun-drenched and wind-swept landscapes, but there’s a challenging paradox at play. The very regions blessed with exceptional renewable energy potential often grapple with significant water scarcity.

The Pilbara in Western Australia stands as a prime example. This vast region receives abundant solar radiation and hosts strong wind resources, making it ideal for powering electrolysers. Yet annual rainfall barely reaches 300mm in most areas, and groundwater supplies face competing demands from mining, agriculture, and communities. Despite this tension, the region is home to several proposed hydrogen projects, including the Asian Renewable Energy Hub, which aims to become one of the world’s largest renewable energy facilities.

Moving east, Gladstone in Queensland presents a more balanced picture. The port city enjoys better water availability through the Awoonga Dam and higher rainfall, though managing competing uses remains crucial. This relative advantage has positioned Gladstone as a frontrunner for hydrogen development, with multiple projects already underway.

South Australia’s Port Bonython offers another case study in this delicate balance. Located on the Spencer Gulf, the area experiences modest rainfall of around 250mm annually. However, proximity to seawater and planned desalination infrastructure could help resolve water constraints, though at an energy cost that impacts overall project efficiency.

The Eyre Peninsula and parts of regional New South Wales face similar challenges, where world-class renewable resources coincide with limited freshwater availability. This geographic reality isn’t insurmountable, but it demands thoughtful planning. Communities near these proposed hubs deserve transparent conversations about water allocation, environmental impacts, and the infrastructure needed to make hydrogen production genuinely sustainable. Understanding these regional nuances helps us advocate for solutions that protect both our renewable energy future and precious water resources.

Smart Solutions: How Australia Can Optimise Energy and Water Together

Desalination Powered by Renewables

Australia’s sun-drenched coasts offer a compelling solution to the water challenge facing hydrogen production. By coupling renewable energy with desalination technology, coastal communities can produce green hydrogen without straining precious freshwater supplies—turning our abundance of seawater into an asset rather than relying on inland water resources.

The concept is elegantly simple: solar panels and wind turbines power desalination plants that convert seawater into the pure water needed for electrolysis. The same renewable energy then splits that water into hydrogen and oxygen. Several Australian pilot projects are already demonstrating this integrated approach works in practice.

In Western Australia, the Murchison Renewable Hydrogen Project combines wind and solar farms with seawater desalination to produce hydrogen for export and domestic use. Meanwhile, South Australia’s Hydrogen Jobs Plan includes coastal facilities designed to leverage the state’s excellent renewable resources alongside ocean water. These pioneers are proving that location matters—coastal hydrogen hubs can sidestep inland water scarcity entirely.

Current costs remain higher than traditional hydrogen production, with desalination adding roughly 10-15% to overall expenses. However, as renewable energy prices continue falling and technology improves, this premium is shrinking. For coastal regions with strong sun and wind resources—think Port Hedland, Gladstone, or Port Lincoln—the economics increasingly stack up.

The beauty of this approach lies in its scalability. Communities near coastlines can start small, building local hydrogen production that grows alongside renewable capacity, creating jobs while protecting inland water for agriculture and communities who need it most.

Water Recycling and Closed-Loop Systems

Water scarcity is a reality many Australian communities understand intimately, which makes the water demands of hydrogen production a critical consideration. The good news? Forward-thinking facilities across Australia are pioneering closed-loop systems that dramatically reduce freshwater consumption while supporting local communities.

Green hydrogen production traditionally requires significant water for electrolysis—the process that splits water molecules into hydrogen and oxygen. However, innovative facilities are now integrating directly with wastewater treatment plants, using treated effluent rather than precious drinking water. This approach, similar to water recycling initiatives in other industries, creates a win-win scenario: hydrogen producers access reliable water sources while reducing pressure on municipal supplies.

Several Australian projects are leading this transformation. In South Australia, partnerships between hydrogen facilities and local councils are exploring how treated wastewater can fuel production while the oxygen byproduct supports wastewater treatment processes. Meanwhile, Western Australian innovators have developed systems that capture and recycle up to 95 percent of water used in cooling and auxiliary processes.

These closed-loop systems work by continuously filtering and purifying water within the facility, similar to how nature’s water cycle operates. The result is a dramatically smaller environmental footprint and stronger community relationships, as hydrogen producers become collaborative partners in regional water management rather than competing users. This collaborative spirit exemplifies how Australia’s hydrogen industry can grow sustainably alongside community needs.

Strategic Site Selection and Regional Partnerships

Smart planning can transform Australia’s green hydrogen future from water-stressed to water-wise. Rather than forcing facilities into areas already facing scarcity, strategic site selection places hydrogen production where water is naturally more abundant or where clever partnerships multiply benefits.

Across regional Australia, exciting collaborations are emerging. Mining operations in water-rich areas like Tasmania’s west coast could share desalination infrastructure with hydrogen facilities, splitting costs while both industries decarbonise. In northern Queensland, hydrogen plants positioned near sugarcane mills can utilise treated wastewater that would otherwise go unused, creating a circular water economy that strengthens both sectors.

Agricultural regions present particularly promising opportunities. Farms with reliable bore water access or proximity to water treatment plants can host smaller-scale hydrogen production, generating clean fuel for their own machinery while contributing to the broader energy grid. This distributed approach reduces pressure on any single water source and builds regional resilience.

The key is moving beyond a one-size-fits-all approach. When communities, industries, and hydrogen developers work together from the planning stage, they create solutions that respect local water realities while unlocking economic opportunities. It’s about building hydrogen capacity where it makes environmental and social sense, not just where land is cheapest.

Australian Projects Leading the Way

Across Australia, pioneering projects are proving that green hydrogen production can work hand-in-hand with smart water management, creating genuine benefits for local communities while protecting our precious water resources.

In Western Australia’s Pilbara region, the Asian Renewable Energy Hub is tackling water challenges head-on with an innovative approach that’s captured international attention. Rather than competing with communities for drinking water, the project plans to use desalination powered entirely by renewable energy—solar and wind generated on-site. What makes this particularly exciting is the project’s commitment to the local Indigenous community. The Nyangumarta people are active partners in the development, with agreements ensuring employment opportunities and cultural heritage protection. The lessons here are clear: when communities are involved from day one, projects can address both environmental and social sustainability together. The hub also demonstrates that even in Australia’s driest regions, green hydrogen is possible when we think creatively about water sourcing.

Moving east, the Gladstone Hydrogen Ecosystem in Queensland is showing how existing infrastructure can be reimagined for a cleaner future. This project is particularly clever in its water approach—it’s exploring the use of treated wastewater from industrial processes, essentially giving already-used water a second life in hydrogen production. For Gladstone, a town with deep industrial roots, this represents more than just environmental progress. It’s about economic transition, with local workers gaining new skills in renewable technology while maintaining employment in their community. The project has created training partnerships with local TAFE institutions, ensuring young Queenslanders can access careers in this emerging industry without leaving home.

Perhaps most inspiring is the Hydrogen Park South Australia in Adelaide, which started producing green hydrogen in 2021. This project blends hydrogen into the existing natural gas network, supplying homes in nearby suburbs. What residents appreciate most is the project’s transparency—regular community information sessions have helped demystify hydrogen technology and build genuine local support. The project also monitors water use meticulously, using recycled water where possible and publicly reporting consumption figures.

These projects share common threads: genuine community engagement, innovative water solutions tailored to local conditions, and a commitment to sharing knowledge openly. They’re proving that Australia’s green hydrogen future doesn’t require choosing between energy ambitions and water security—we can achieve both with thoughtful planning and community partnership.

What This Means for Your Community and Business

Questions to Ask About Hydrogen Projects Near You

As hydrogen projects emerge across Australia, your voice matters in shaping how they develop. Whether a facility is proposed in your region or you’re keen to support responsible projects, asking the right questions ensures these initiatives truly deliver on their green promise while protecting local resources.

Start with water sourcing: Where will the water come from, and how much will be required annually? Is the project using desalination, recycled water, or drawing from existing supplies? Understanding the source helps assess potential impacts on agricultural water security and local ecosystems.

Energy efficiency deserves scrutiny too. Ask developers what their water-to-hydrogen ratio is and how it compares to industry best practice. Which renewable energy sources will power the electrolysis, and are these additional installations or drawing from the existing grid?

Community consultation matters enormously. Has the developer engaged meaningfully with local stakeholders, including Traditional Owners? What environmental safeguards are in place to protect waterways, wildlife, and surrounding ecosystems?

Finally, inquire about the project’s end use. Will the hydrogen support local decarbonisation efforts, or is it purely for export? Your local council and state representatives need to hear these questions too. Together, we can ensure Australia’s hydrogen industry grows sustainably, benefiting communities while respecting our precious water resources.

Australia stands at the threshold of an extraordinary opportunity. We have the renewable energy resources, the technical expertise, and the innovative spirit to become a genuine green hydrogen powerhouse. But as we’ve explored throughout this journey, success isn’t just about building electrolysers and signing export contracts. It’s about getting the fundamentals right, and nothing is more fundamental than water.

The path forward requires us to think differently about how we integrate water efficiency into every stage of hydrogen development. It means choosing coastal sites wisely, investing in desalination powered by renewables, recycling water wherever possible, and designing projects that work with our climate rather than against it. Most importantly, it means ensuring our communities have a voice in how these projects unfold.

Each of us has a role to play in shaping this future. Stay informed about hydrogen proposals in your region and participate in community consultations. Support policies that prioritise water sustainability alongside hydrogen production. Share knowledge with neighbours and local businesses about what green hydrogen means for your area. Ask the tough questions about where water will come from and how it will be managed.

Australian ingenuity has always risen to meet big challenges. From adapting agriculture to harsh conditions to pioneering solar technology, we’ve shown time and again that sustainability and prosperity can go hand in hand. Green hydrogen is our next chapter in that story, and if we write it thoughtfully, considering every precious drop of water, we’ll create something truly remarkable for generations to come.