// WIRED US/UK — INTELLIGENZA ARTIFICIALE
A Startup Has a Plan to Make Water From Air Using Data Centers’ Waste Heat
An industrial park in Irvine, California, may seem an odd spot to show off technology that wouldn’t be out of place in Dune, but that’s what’s happening on a sweltering September morning.
The temperature is already over 80 degrees Fahrenheit as the sun rises on a 20-foot-tall, metal-clad machine in the parking lot of Atoco, an Irvine, California-based startup. Engineers open panels to check systems and an iPad that shows a steadily ascending line that reveals the device’s purpose: harvesting water from thin air using special materials known as metal organic frameworks, or MOFs.
The materials won Omar Yaghi, the company’s founder, the Nobel Prize for chemistry in 2025, and Atoco has shown they work in prototypes capable of producing gallons of water per day. What’s unique about this iteration of Atoco’s technology is what it doesn’t require. No grid connection or even electricity is needed to grab water from the air at the microscopic level, nor is it required to in turn wring the water out of the materials in a form useful for humans.
Instead, all that’s needed is low-level industrial heat. That, Atoco says, makes them a perfect candidate to hook up with AI data centers, which throw off loads of waste heat as servers churn out everything from math proofs to virtual editors while also often requiring massive amounts of water.
“We were not really thinking of AI data centers,” four or five years ago, says Atoco CEO Samer Taha. But the massive buildout has created an opportunity for the startup that could allow it to get a step closer to its larger goal of ensuring people living in water-stressed regions have control over an increasingly precious resource.
When Yaghi was a PhD student, he says, creating something like MOFs was “every chemist’s dream.” Part of his Nobel-winning work over the past 20 years has been taking theoretical research into the real world, creating a stable molecular structure that links organic material with metal ions.
The structure of a MOF looks somewhat “like a jungle gym on a playground,” says Seth Cohen, the dean of the School of Physical Sciences at UC Irvine. MOFs are essentially “molecular sponges—they’re a solid material that’s very, very good at absorbing other molecules,” says Cohen, who is not involved with Atoco. Like a sponge, the materials can also be wrung out using methods including heat to release whatever they’re holding onto.
These jungle-gym-like frameworks create open spaces on the microscopic level that can hold an unbelievable amount of material, and small tweaks can yield even more interior space.
“The footage of a gram of MOF could cover two football fields,” Yaghi explains. “They can store hydrogen in there to make clean energy, or you could store CO2 in there to make clean air. Or, in this case, you can store water.”
Atoco has developed what Taha calls “precision materials” with a specific objective of being able to harvest water, release it, and then do it over again and again. He quips that, as vice president of R&D Benjie Limketkai puts it, the material has to like water but not love it. To succeed commercially, it also has to use as little energy as possible.