Reliable Clean Water on Buka Island, Papua New Guinea with Solar Desalination
On the stunning Petats Island, part of the Buka Island region in Papua New Guinea, beauty hides a harsh reality: water scarcity.

Sustainable Reverse Osmosis System Turning Seawater to Drinking Water
Location: Petats Island, Buka | Population served: ~3,500 people
System type: Solar-powered reverse osmosis (RO) with solar pump distribution
Application: Community drinking water
On the stunning Petats Island, part of the Buka Island region in Papua New Guinea, beauty hides a harsh reality: water scarcity.
Clean water supply for a remote island community
The island’s 3,500 residents rely on a shallow freshwater lens that turns brackish during dry spells. The well water, often yellow-brown and musty from organic matter, is not suitable for drinking. During prolonged droughts, families are forced to make costly boat trips to the mainland to access safe drinking water.
Solar Reverse Osmosis for Clean Water on Remote Islands
This decentralized, renewable water solution means families in remote island villages no longer have to choose between unsafe water or expensive travel. It strengthens local resilience and ensures year-round access to clean and safe water—powered by the sun.
To solve local clean water management, together with our partner Sustainable Water Systems, we installed a fully solar-powered reverse osmosis system, a model type SW18, that transforms saline water into high-quality drinking water—day after day, even in extended dry periods.
The clean water is stored in central tanks and distributed across the community through a solar-powered pump system, reaching multiple access points. This combination of solar reverse osmosis, water storage, and solar-powered distribution provides a decentralized clean water solution for the remote island community.
Off-grid water system for remote community
Petats is a coral reef island—vulnerable to rising sea levels and climate shifts. This installation is more than a water system; it’s a lifeline for an island on the frontline of climate change.








Solar-powered desalination at a glance
Solar desalination combines reverse osmosis technology with solar energy to produce high-quality drinking water from saline water. On Petats Island, the fully solar-powered SW18 demonstrates how solar reverse osmosis can provide clean water for a remote island community, with treated water stored in central tanks and distributed through a solar-powered pump system.
This island desalination system provides a decentralized, renewable water solution for approximately 3,500 residents. Powered by the sun, the off-grid desalination solution supports year-round access to clean and safe water for the island community.
Looking for a reliable water solution for an island community?
Solar Water Solutions provides solar-powered desalination systems for remote islands and communities, combining reverse osmosis technology with solar energy for decentralized clean water production.