Our solution

We present a solar powered system (not solar panels) with water and electricity cogeneration. This system allows the production of two essential resources for the functioning of any developed society. The system uses the sun as a source of energy and air as a source of water. The initial aim being the passive production of water in large quantities, the basic version of the proposed system is totally passive and produces only water. Different active options can be added depending on local electricity needs and/or air pollution. Hybrid conception (passive and active) happens to be the most efficient.
All the technical aspects already exist, the creative process is an ingenious combination of proven techniques.

Advantages

The system can be placed anywhere, it is autonomous and emits no pollution. Production can range from a few hundred to a few million litres daily and since the system is passive the initial investment represents the largest share of the cost, maintenance being extremely low. It can be built using materials available in large quantities and which exist almost everywhere (iron, aluminum, sand, cotton wool, glass, mirrors). Moreover, the passive version is also relatively simple to build.

Setting it up

The system needs a starting phase during which it stores energy and  its efficiency is progressively increased. Once the expected operating flow is reached, the system operates continuously with only slight variations in efficiency as a function of the local atmospheric conditions and the alternation between day and night.

It is even possible to further increase the systems’ efficiency and stability by using part of the water produced to restore natural hydrographic systems in the surrounding area. The environment near the system will be covered progressively with vegetation and the moisture of the area will increase as the area extends, providing the possibility to extract a larger quantity of water.

Water in the soil

Produced water is poured into the soil and judiciously distributed over a given territory. Water will spread in the natural hydrographic system, charging itself with minerals, and eventually reach human settlements. Thus, there is no need for the construction of new wells insofar as the water tables would be revitalized, the existing wells would be full again, and watercourses and bodies of water would reappear in form of drinkable water.

Competition & existing market

Many passive and active system have attempted to extract water from the air. Unfortunately, they currently have drawbacks that makes them non-sustainable for our purpose:

  • Existing active systems have a low production and the energy cost to pay for electricity is high. Moreover, many regions remain totally isolated from any (clean) electricity sources.
  • Existing passive systems are currently only able to extract small amounts of water and any pollution present in the air is found in the water. These passive systems are also highly dependent on atmospheric conditions (or simply don’t work at night), making them poor candidates for catering large human facilities.

It is therefore necessary to rapidly develop a technology that allows the construction of plants capable of supplying cities. Smaller scales could provide water for domestic needs.

Limitations

  1. Longer periods without sun reduce the systems’ efficiency drastically. Therefore, the polar regions are unfavorable to the implementation of such a system.
  2. The produced water is too pure for direct consumption (before mineralization), but ideal for agriculture and industrial needs.