As climate change wreaks havoc on the Earth’s interconnected natural systems, drought and desertification are swiftly becoming the new normal, everywhere from the United States to Europe and Africa.

Drought in Numbers, a 2022 report from the UN Convention to Combat Desertification, found that since 1970 weather, climate and water hazards have accounted for 50 per cent of all disasters and impact 55 million people globally every year. The report also found that 2.3 billion people face water stress annually.

There are still several communities in advanced countries like Canada and US that have long-term water advisories. This generally happens when a water system is not functioning well for a variety of reasons, for example, because of equipment malfunction and/or operational issues which prevent the system from treating water to the required quality.

While a drinking water advisory is in effect residents must either purchase water, boil water or otherwise ensure their drinking water is purified. The First Nation communities have the highest rate of long-term advisories in Canada.

Desalination is increasing globally. Several countries, such as the Maldives, Malta and the Bahamas, meet all their water needs through the desalination process. Saudi Arabia (population 34 million) gets about 50 per cent of its drinking water from desalination. While there’s no shortage of seawater, it’s important to understand and monitor the impact of the rapidly growing number of desalination plants on the environment. Desalination is the process of removing salts from water and a by-product of the process is toxic brine which can degrade coastal and marine ecosystems unless treated.

In most desalination processes, for every litre of potable water produced, about 1.5 litres of liquid polluted with chlorine and copper are created. When pumped back into the ocean, the toxic brine depletes oxygen and impacts organisms along the food chain.

The world needs a new approach that can reduce the impact of climate change and does not cause new problems like desalination.

Atmospheric water generation (AWG) can address this issue. Sunact AWG uses technology to produce potable water from surrounding air. This provides the potential to expand water availability during shortages, contamination events, and other issues that can interrupt drinking water services.

Atmospheric Water Generators depend on the humidity and temperature in the geographical location it is installed in. The output increases with an increase in humidity and vice versa. Warm coastal areas with high humidity are ideal but the unit could be designed to work in any location.
One unit of Sunact AWG (S-AWG) can produce 60 liters of water/day @25°C & 65% RH or 100 liters of water/day @30°C & 80% RH. This is enough drinking water for 15-25 people.

S-AWG Benefits:
  • AWG requires no water source; it does not deplete existing water resources.
  • Pure drinking water with no impurities and odor.
  • It is an environmentally positive technology. Unlike RO and desalination systems that waste 70% of the water as reject water, there is no water wastage.
  • Great source for water during emergencies and areas of water shortages and water contamination.
  • It provides a decentralized, local source of pure water without any connection to pipes.
  • AWG utilization (even in large scale) costs a fraction of conventional water treatment facilities or desalination plants and has no negative impact for the environment.

For emergency and disaster management applications, the S-AWG could be integrated as part of S-DRU to provide mobile renewable power and water for all phases of EM: Mitigation, Preparedness, Response, and Recovery. Examples of natural disasters include coastal flooding, drought, earthquake, heat wave, hurricane (tropical cyclone), landslide, riverine flooding, tornado, tsunami, volcanic activity, and wildfire.