Atoco Demonstrated System Turning Server Heat Into Water

The company showcased technology that uses data center waste heat to generate drinking water in an Irvine pilot.

Updated on Oct. 11, 2026 in Data Centers

Isometric editorial illustration showing a modular metallic industrial chamber connected to a collection reservoir, representing atmospheric water harvesting technology. — Atoco demonstrated a new system in Irvine that successfully converts waste heat from data center servers into drinkable water using atmospheric harvesting. AI Illustration. Upload story photo >

Live Poll

Should data centers be required to recycle their waste heat and water for community use?

In September 2026, Atoco demonstrated a system in Irvine that converts data center waste heat into drinkable water. The technology utilizes metal-organic frameworks to harvest water vapor from the air at humidity levels between 10 and 20 percent.

Why it matters

Data centers consume massive volumes of water for cooling, and new E.U. regulations now mandate that large facilities must find ways to reuse their waste heat. This innovation addresses both the water usage crisis and the legal requirements for energy efficiency.

The prototype produces 300 liters of water daily using 20 kilowatts of waste heat, requiring at least 38 degrees Celsius to release harvested moisture. In the Irvine demonstration, the system operated using 65 degrees Celsius of heat.

The players

Atoco

Atoco is a technology firm developing systems that utilize metal-organic frameworks to extract water vapor from the atmosphere.

European Union

The European Union is a political and economic union that has implemented directives requiring large data centers to repurpose waste heat.

The details

Atoco units can be linked to increase total volume, targeting the specific needs of large-scale data centers. The company plans to scale the technology to produce 1,000 liters of water per day while lowering costs to compete with current desalination rates.

In September 2026, Atoco demonstrated the water harvesting technology in Irvine.
Atoco aims to secure first commercial orders by the end of 2026.
Competitive pricing against desalination plants is targeted for 2029-2031.
The European Union aims to triple data center capacity by 2035.

The Tech Race

Atoco's system directly addresses the requirements of the E.U. Energy Efficiency Directive, which forces large data centers to find utility for their thermal output. This positions the company to compete in a market where operational efficiency is becoming a strict legal necessity rather than an optional corporate goal.

As data centers integrate these water-harvesting systems, the technology could reduce the burden that massive cooling operations place on local municipal water supplies. Residents in areas with high data center density may see lower competition for water resources once commercial units are deployed.

The takeaway

Atoco is betting that capturing waste heat will solve the cooling problems that keep data center operators awake at night. If successful, this process could transform how facilities manage their environmental footprint and regulatory compliance simultaneously.