Prototyping

From research to field-ready systems

Our prototypes translate water-harvesting research into measurable, deployable systems for real operating conditions.

Prototype portfolio

Systems built to test, learn, and scale

Each system combines engineering validation, operational monitoring, and a pathway toward resilient deployment.

Compact monitoring unit

TestedCompact lab-scale unit · vapor-compression condensation · single-phase · Ben Guerir, UM6P

A fully integrated, instrumented atmospheric water generator featuring a closed vapor-compression cycle with a dual, decoupled airflow architecture for efficient operation.

Technical details

Developed and tested at the E4W Center, this unit uses dedicated evaporator and condenser fans to minimize thermal interference. Its embedded data-acquisition platform records critical thermodynamic and operational parameters in real time. The resulting high-fidelity data supports continuous performance optimization and future commercial deployment, including thermal-management improvements and hybrid PV operation for off-grid use.

Key performance indicators

  • Operating modeContinuous · grid or hybrid PV
  • Monitoring parametersTemperature, humidity, pressure, water level, and power
  • Data acquisition60-second interval · local microSD storage
  • StatusTested · V1.3 optimization underway
  • UpscalingDesigned to scale to thousands of litres per day
VCC-AWG01
Compact monitoring atmospheric water generator

Modular 100 L/day system

Deployment readyModular deployment unit · vapor-compression refrigeration · single-phase · outdoor deployment

A compact, robust, outdoor-ready atmospheric water harvesting unit designed for scalable, decentralized water production.

Technical details

Engineered and assembled at E4W, this modular system combines a high-efficiency refrigeration circuit with a high-density aluminium-finned evaporator. An integrated multi-stage treatment module uses activated-carbon filtration and UV disinfection to support potable-water quality. The unit has been field-validated for continuous operation in humid and semi-arid Moroccan climates.

Key features

  • Daily output100 L/day continuous
  • Storage150 L · food-grade tank
  • FiltrationAir pre-filter, activated carbon, and UV
  • InstallationCompact · single-phase power

Energy performance by climate

  • Rabat · humid climate0.65 kWh/L · 65 kWh/day · COP 1.8 · 2.7 kW average
  • Benguerir · semi-arid climate0.85 kWh/L · 85 kWh/day · COP 1.4 · 3.5 kW average
  • UpscalingDesigned to scale to thousands of litres per day
VCC-AWH 02Outdoor deployment readyModular architectureMulti-stage water treatment24-hour continuous operationScalable to 500 and 1,000 L/day
Modular 100 litre-per-day atmospheric water harvesting system