Archmedis

Freshwater from the ocean.
No energy. No brine. No land.

A passive solar desalination platform. Ocean-deployed. Powered by sunlight alone.

The Platform

Archmedis.

Ocean-deployed desalination. Solar-powered. Passive. A clean utility platform — zero carbon in water generation.

Offshore. No coastal land. No onshore permitting. Each module operates independently. Output scales linearly. Risk does not.

Top-down schematic of a distributed Archmedis deployment: modular floating desalination units arranged offshore, connected through a central subsea trunk to an onshore freshwater collection tank feeding the water distribution network.

Deployment Configuration

Energy

None.

Solar thermal only. No electricity. No fuel. No moving parts.

Discharge

Zero brine.

Thermal dissipation into the water column. Nothing to manage.

Footprint

Ocean-native.

Floating. No coastal land. No onshore foundations.

Scale

Linear.

Add units to add capacity. No redesign. No re-engineering.

How It Works

Three stages. No moving parts.

Cross-section of a single Archmedis module showing passive thermohaline convection: sunlight drives evaporation in the warm upper region, vapor crosses a phase boundary into the cooler lower region where it condenses as freshwater. Labeled flows: seawater in, thermal return, freshwater out.

01

Capture

Sunlight heats seawater through a multi-stage thermal collector. Curved geometry amplifies evaporation surface. Phase-change material extends output past sunset.

02

Distill

Thermohaline gradients drive evaporation and condensation across successive stages. No membranes. No pressure. No consumables. Thermodynamics separates salt from water.

03

Deliver

Freshwater transfers to shore via standard marine logistics. Each unit operates independently. Output scales by adding units.

Structural Advantage

A different class of infrastructure.

Existing systems are centralized, energy-intensive, land-bound. Scaling them concentrates risk. Archmedis removes these constraints structurally.

Centralized → Distributed

Single large plants vs. independent modular units. No single point of failure.

Carbon-intensive → Clean utility

Reverse osmosis is grid-heavy and carbon-heavy. Archmedis runs on sunlight — zero carbon in water generation.

Land-based → Ocean-native

Coastal land and permits vs. water-surface deployment. Zero land. Zero footprint.

A clean utility, not a chemical plant. No distributed, passive desalination system operates at commercial scale today.

Infrastructure Context

Centralized water infrastructure concentrates risk.

Most freshwater systems follow the same architecture: large, centralized plants feeding regional networks. Known failure modes — single-point disruption, permitting delays, energy dependency, brine liability. Demand is rising faster than centralized supply can be built.

Wherever water stress is acute, the same pattern repeats: concentrated supply, strategic reserves measured in days, coastal dependence, and no independent backup layer. One disruption — mechanical, environmental, or adversarial — removes supply for millions.

Redundancy through distribution

Hundreds of independent units. No single failure disrupts output.

Resilience through simplicity

No fuel. No grid. No consumables. Fewer failure modes than any comparable system.

Capacity through addition

Add units, add capacity. No redesign. No re-permitting.

Deployment Contexts

Designed for real constraints.

Engineered for field conditions. Not laboratory ideals.

01

Governments & Water Authorities

Today's architecture concentrates supply in single plants. One disruption affects millions. Archmedis distributes capacity — no coastal land, no grid, no onshore permitting. Zero brine eliminates regulatory liability. No single failure disrupts total supply.

Discuss a deployment

02

Utilities & Infrastructure Operators

Integrates with existing distribution without modification. Capacity scales by addition — no redesign, no re-permitting. Long-term supply contracts with per-litre pricing. Additive by design.

Explore capacity integration

03

Islands, Offshore & Remote Operations

Autonomous operation on solar energy and seawater. No grid. No brine management. No onshore infrastructure. Built for environments where resilience is non-negotiable.

Evaluate for your site

Current Status

Engineered for real deployment.

Patent Pending

Proprietary thermal architecture

Multi-stage passive distillation. Core architecture under active intellectual property protection. Patent application filed.

Deployment-First Design

Built under field constraints

Standard materials. No proprietary components. No supply chain dependencies. Structural advantage is architectural — no breakthrough physics required.

Pilot Deployment

Field validation scoped

Phase 1 targets harsh coastal conditions — high salinity, extreme heat, offshore wave environment. Prototype and testing underway. Commercial deployment planned post-validation.

Entry Points

Three ways to work with us.

Build

For engineers, integrators, and operators deploying physical water systems.

Talk to engineering

Invest

For long-duration infrastructure capital. Raising to fund first commercial deployment.

Request materials

Partner

For governments, agencies, and enterprises evaluating Archmedis for deployment.

Start a conversation