Water Systems: Vai Tapu & Vai Koko
Resilient Water for a Sovereign Future
Overview
The Tuvalu Sovereign Vision places water at the center of our climate resilience, ecological stewardship, and cultural identity. Together, Vai Tapu and Vai Koko form a regenerative, modular, and ritual-integrated water system built for the rising tides.
Vai Tapu – Desalination Node
Vai Tapu is a self-contained desalination unit delivering up to 20,000 liters/day of potable water. Powered by solar and monitored by the Guardian system, it enables island communities to thrive off-grid.
Features
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Solar array + lithium battery backup
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Rainwater capture + dilution integration
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Real-time public dashboards via Guardian terminal
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Modular connection to Vai Koko tanks
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Coral-safe brine discharge and salt harvesting (Salt Basin)
Vai Koko – Lagoon Water Cocoon
Vai Koko is a 20,000-liter semi-submerged water storage tank, installed in the lagoon floor and crowned with a coral nursery. It protects water, restores reefs, and serves as a living ritual object.
Features
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Submerged capsule with passive cooling
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Coral Crown for reef regeneration
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Reefskin concrete shell for ecological attachment
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RGB light ring for water level & ritual use
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Hydro and solar powered sensors
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Accessible hatch, smart sensor node, and status indicators