Humanity and Earth face a severe and worsening water crisis. This crisis takes many forms, including shortages of clean water and food, skyrocketing water prices, desertification, mass migration and environmental collapse. All of these challenges are projected to intensify in the coming years.
Yet, there is no actual global shortage of water: oceans cover more than 70% of the planet's surface and there are abundant inland sources of salt-water, including agricultural runoff as well as many brine aquifers and surface water bodies. What the world lacks is sufficient access to clean water where and when it is needed.
Existing approaches to desalination and distillation present significant problems including exorbitant costs, high energy demand and the dumping of large volumes of concentrated brine and sometimes toxic byproducts. Median prices for produced water from existing technologies, not inclusive of all costs associated with energy demand or byproduct disposal, run from $1,000 per acre foot (af) to $2,600/af. The world needs a more cost-effective, sustainable approach for creating clean water from salt-water.
Global Water Farms is bringing to market a patent-pending salt-water distillation system: the off-grid, solar-powered "Zero Liquid Discharge - Aided Evaporation Condensation (ZLD-AEC) Water Farm." This technology is cost effective, efficient, scalable, versatile and environmentally sustainable. Each Water Farm consists of at least one ZLD-AEC unit. Each unit sits on approximately 1.25 acres and is projected to produce a minimum of 1 to 1.5af of distilled water per day at cost-based pricing of $800/af.
The ZLD-AEC technology employs triple application of heat, with solar radiation, mechanical equipment heat and surrounding environmental heat being employed to: (1) evaporate salt-water, (2) dry the byproduct, and (3) power steam turbines to generate electricity to run the system. Salt solids and other dried byproduct components are separated out and contained; some components will be processed for future sale. Most of the electricity to power each unit is generated by steam turbines using excess heat from the system, with any extra electricity needed generated by a gas-powered steam boiler. Each Water Farm unit is an Integrated Solar Combined Cycle (ISCC) system operating "off-grid" and generating low-cost distilled water and electricity.
What We're Working toward
- Raise $4.5 million from Phase 1 investors to build, test, refine and showcase prototype technology
- For Phase 2, build small-scale Water Farms for earliest adoptors in CA and Southwestern US
- For Phase 3 build larger-scale Water Farms and expand into broader, more diverse markets
- Customized farms to facilitate needs for specific markets