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Mitch Jackson's avatar

This tech may offer some solutions down the line...

Atoco is a California startup built on metal-organic frameworks, a class of porous crystalline materials invented by Omar Yaghi, the UC Berkeley chemist who shared the 2025 Nobel Prize in Chemistry with Susumu Kitagawa and Richard Robson for developing them. These frameworks, called MOFs, are engineered at the atomic level so that a few grams hold an internal surface area the size of a sports arena, and they are tuned to trap only water molecules out of the surrounding air, even in extremely dry regions. Atoco packs this material into a unit the size of a 20-foot shipping container, where the MOFs silently pull H2O from the air and store it in their microscopic cavities before releasing it as water. Because the material grabs only H2O, the water comes out near distilled quality, free of PFAS, microplastics, and other contaminants. The company has tested the technology in Death Valley, one of the driest places on Earth, and confirmed it can still produce clean water there. Yaghi serves as Atoco's Chief Science Officer.

The output depends heavily on conditions and on how the unit is powered. On-grid units that run on electricity cycle more often and produce roughly 2,000 to 4,000 liters, about 1,057 gallons at the top end, of high-purity water per day, while off-grid units that run on ambient or waste heat produce up to about 1,000 liters a day, so the headline figure of 4,000 liters is a best case rather than a guarantee. As of spring 2026 the technology is preproduction, with a commercial prototype demonstrated for Bloomberg in an Orange County parking lot in April 2026 and volume production slated for later in the year, pending field tests. Atoco has not released pricing, though it estimates the water will cost a few cents per liter, which is more expensive than desalinated water, with the selling points being purity, decentralization, and resilience rather than low cost. Interest in the technology has risen partly because the Iran war exposed the vulnerability of large centralized desalination plants that became military targets, and Atoco is marketing the units to data centers, semiconductor plants, hospitals, farms, and any water-stressed region, though it would take roughly a dozen units to supply even a single water-efficient data center, and a competitor called AirJoule, a joint venture with GE Vernova, is pursuing a similar MOF-based harvester producing about 2,000 liters a day on a comparable timeline.

Atoco's official website is: https://atoco.com

Its press release on the atmospheric water harvesting prototype is at https://atoco.com/press/atoco-unveils-atmospheric-water-harvesting-on-grid-prototype/.

The most detailed independent reporting on the project I've come across is the Bloomberg feature from May 12, 2026, titled "Startup Atoco Unveils Device That Pulls Drinking Water From Air," at https://www.bloomberg.com/news/features/2026-05-12/startup-atoco-unveils-device-that-pulls-drinking-water-from-air (Bloomberg may be behind a paywall. The Mining.com writeup covers much of the same reporting if the Bloomberg link is blocked.)

Rick Knight's avatar

A comment about the power plants. Gas turbines, of course, burn fossil fuels, which contribute to climate change. But not all gas turbines are alike. Combined-cycle plants with modern pollution control are pretty clean, with zero particulates, no sulfur oxides, and pretty low nitrogen oxides. On the other hand, single-cycle peaker plants emit far more pollution of all kinds.

Wanna guess what the difference is?

$$$$$$$.

Combined-cycle plants are far more costly to buy, build, and operate.

Single-cycle rapid startup machines are cheap and quick.

I'll leave you to guess which species of gas turbine is preferred by the data center builders.

Also, of course, any fossil fuel generator is bad for climate.

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