Signals AZ published a long look at WaHa and the atmospheric water generation market this week, built on an interview with our President, Chris Kay.
The central point is one we’ve been making for a while. For years AWG was treated as a materials race, a hunt for a sorbent that could pull water out of very dry air. That race is largely settled. The MOF chemistry awarded the 2025 Nobel Prize in Chemistry works, and it will keep improving for everyone in the field. What’s left is regeneration, the step that releases captured water back out as liquid so the cycle can repeat. That step sets a machine’s energy use, its climate range, and whether it can run unattended.
Roginson walks through the four platform types in use today and what each was built for: condensation, passive sorption, active sorption, and the sealed closed-loop heat pump in the WaHa Vaporator®. He frames the differences as architectural rather than as one company being smarter than another, which we appreciated.
The Arizona angle is why the piece exists. Central Arizona’s high country isn’t on the Colorado River or the Central Arizona Project. It runs on groundwater, and the state’s safe-yield target for the Prescott Active Management Area went unmet. Older condensing based systems need roughly 40 to 60 percent relative humidity to hit rated production, so they aren’t much use there. At the AzAWH testbed at Arizona State University, a WaHa Vaporator® delivered its full rated 24 liters of pure water per day at 18 percent relative humidity.
The article also covers our Climate Viability Explorer, including the part where we published a map of where our own machine doesn’t work. Measured against the same 90/90 standard, compressor-based AWG clears the bar on 1.0 percent of water-stressed land and the WaHa Vaporator® clears it on 83.4 percent. You can run any address yourself.
Read the full article at Signals AZ: Water From Thin Air: Inside WAHA and a Bid to Redefine Atmospheric Water Generators.
