Given these factors, it became clear that X wasn’t best suited to take the work forward, and one of the best ways X could have an impact now on the problem of access to safe drinking water was to share what we’ve learned.  We believe this technology, even at $. a liter, has the potential for positive impact in many communities and could form the basis for many viable businesses — just not the size and shape of businesses we’re working to produce at X.

After three years of work, the team felt confident they could build a device that would produce water for $. per liter; however, it would have taken significant development work and iteration to prove feasibility at $. per liter. Additionally, the next phase of work for the project looked to be heavily focused on hardware integration and mass production expertise — not X’s sweet spot. During the course of the project, the team also saw many new organizations — including research groups, startups, and NGOs — springing up to work on ways to harvest drinking water from the air.

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Atmospheric water harvesters — devices which pull water from the air — have often been overlooked as a potential solution because of their relatively low outputs in comparison to other technologies, like desalination. One of their benefits, however, is that they can be built to be small, modular and renewably powered — decoupling them from some of the more systemic barriers to access. The team knew that such devices would never be the only solution needed, but their hope was that it could help fill a critical gap in places where safely managed drinking water was needed most.

After various iterations and user research studies, the team eventually built their most recent prototype model. This prototype ran on solar heat and was made from vacuum-formed parts — a manufacturing technique typically used to make small, disposable items, like takeaway food containers. Light and low cost, the team realized vacuum-forming also had the potential to form many of the larger parts of their device too.