Tonga – Matamaka: Turning the Sea and Sun into a Lifetime of Clean Water
For the first time in history, the remote island communities of Matamaka and Hunga in Vava’u, Tonga, have a guaranteed, independent source of pure drinking water.
Historically dependent on erratic rainwater collection and highly vulnerable to prolonged droughts, these communities faced a critical turning point with the declaration of a “Super El Niño.” To answer the crisis, Bluemont Pty Ltd, in partnership with Elemental Water Makers, stepped in to turn the surrounding ocean into a life-saving resource using 100% solar power.
Overcoming the Odds: The Reality Behind the Project
While the technology is seamless, delivering it was anything but. Over a year of planning and heavy lifting, this project tested the absolute limits of remote logistics. Moving desalination infrastructure across the Pacific to remote outer islands meant dealing with loose logistics, volatile shipping schedules, and highly unpredictable conditions.
The project succeeded where others failed because of absolute dedication. The sheer hard work and resourcefulness of the project team, alongside the fierce determination of the local Tongan villagers, pushed the project across the finish line on time.
Funded for Impact: Our Sincere Thanks to PREO
This project would have remained a vision without crucial international support. We extend our deepest gratitude to Powering Renewable Energy Opportunities (PREO) and the UK Carbon Trust for providing the vital grant funding that made this vision a reality.
By backing this project, PREO has directly helped address a profound regional water crisis, proving that clean water access can be unlocked for remote, small island communities without using a single drop of fossil fuel. Their investment has not only funded physical infrastructure but has enabled the local villagers to be trained to operate and maintain these plants independently, securing long-term, self-sustaining impact.
Community Impact: A Transforming Narrative
For generations, the residents of Matamaka were tied to the unpredictability of the weather. When droughts hit the Vava’u island group, rainwater tanks ran dry, forcing families to ration water or pay exorbitant prices to ship emergency bottled water from the main islands.
The introduction of the Elemental Water Makers system has brought fundamental changes to daily life:
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Guaranteed Water Security: The village now has a constant, weather-independent source of pure water, ensuring schools, homes, and healthcare facilities never face shortages.
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Economic Resilience: Local funds previously spent on emergency water transportation and fossil fuels are now retained within the community, fostering local economic stability.
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Health & Sanitation: Access to a continuous supply of clean, high-quality water drastically reduces the risk of waterborne illnesses and improves overall community sanitation.
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A Blueprint for the Pacific: This project serves as a live demonstration for neighbouring islands, proving that clean water access does not have to come at the expense of the environment.

Tonga.
Solar desalination for an island community.
Project media.

Blessed by the Heavens.

Community participation.

Access to clean water.

Plug & play solar desalination.

Training for operation.
