🏭CommercialBuildings & Built Environment • Building Automation

Atmospheric Water Generation

Atmospheric water generation (AWG) systems extract water from air humidity using condensation or adsorption technologies, producing 5-10,000 liters of potable water daily depending on system size. These systems operate at 3-7 kW^[1]h per liter in moderate humidity with water quality exceeding WHO standards. Companies like Zero Mass Water and Watergen deploy systems costing $2,000-100,000 with applications from residential to industrial scale. There are claims that even the Inca used this method - climate tech is usually just old methods with some smart engineering over the top.

How It Works

Condensation-based AWG systems cool air below the dew point using refrigeration cycles to extract water vapor. Adsorption systems use desiccant materials to capture humidity then release concentrated water vapor for condensation. Solar-powered systems use photovoltaic panels to power extraction and purification processes. Multi-stage filtration and mineralization systems ensure water quality and taste.

Advantages

Provides decentralized water supply independent of infrastructure and groundwater, operates in areas with limited water access or contaminated sources, and produces high-quality drinking water meeting all safety standards. Solar-powered systems eliminate grid dependence and operating costs. The technology provides water security and disaster resilience.

Challenges

High energy consumption of 3-7 kW^[1]h per liter limits economic viability, requires moderate to high humidity levels >40% for efficient operation, and faces high upfront costs compared to conventional water supply. Performance varies significantly with weather and climate conditions. Limited production capacity compared to centralized water systems.