Adsorption cooling · custom composite

Cooling that runs on the heat you throw away.

AI racks like the GB300 NVL72 dump enormous low-grade heat into their warm-water loops. AdsoluteZero turns that waste heat into cooling - adsorption chillers built on our own custom composite adsorbent, with no compressor and near-zero evaporative water.

Start a pilot How it works

The name is the thesis: ADSorption to absolute zero.

A bright, liquid-cooled AI data center hall in cool blue and white

Liquid-cooled AI halls return 45-65°C water - the fuel for our chillers.

This isn't a slide. AdsoluteZero already has committed sales and live deployments underway - real commercial traction, not a projection.

~$1M

in sales already committed - live commercial traction, not a projection.

Deploying

first units rolling out now with committed customers - past the pilot stage.

GB300-era

built for today's liquid-cooled, high-density AI racks and the roadmap beyond.

1 · In

Warm return water

45-65°C off the liquid-cooled rack loop - normally rejected as waste.

2 · Desorb

Heat regenerates the bed

That heat drives water off our custom composite. No compressor, no moving parts.

3 · Evaporate

Cold is produced

Water evaporates under vacuum, chilling a secondary loop.

4 · Out

Chilled water, closed loop

Dry-cooler rejection, evaporation-free. Beds alternate for continuous cold.

45-65°C

GB300 warm-water return heat - inside the 50-95°C band adsorption chillers run on.

30-40%

of data-center facility electricity is cooling - the largest load we displace.

~0 L

evaporative water. Closed-loop dry rejection, as sector water use heads toward 644B L by 2030.

4.2×

the water uptake of conventional adsorbents, in our custom composite (modeled).

The heat is finally the right temperature

GB300 return water sits inside the adsorption driving band

Cooling is the load we attack

Share of data-center facility electricity

Water use, gone

Cooling water intensity (L / kWh)

For the first time, the heat source is the right temperature. Liquid-cooled AI racks return 45-65°C water - squarely inside the driving band adsorption chillers already use. AdsoluteZero is a drop-in module on the direct-liquid-cooling secondary loop: it takes the heat the CDU rejects and turns it back into cold. We complement liquid cooling - we don't replace it.

What makes it defensible

A materials advantage, packaged for the rack.

DC-tuned composite adsorbent

A custom composite adsorbent engineered to regenerate at warm-water DLC temperatures - more water per gram at lower drive heat than conventional materials. The exact blend is our own, and it's licensable.

Water-lean by design

Evaporation-free cooling for water-stressed regions - the sharpest wedge where cooling towers face permits, drought and community pushback.

Closes the loop on-site

Unlike district-heat reuse, which needs an offtaker and only displaces heating, cooling is always needed on-site, year-round. No external customer required.

Thermal storage built in

Sorption beds charge off-peak and release cooling on demand - a grid peak-shaving asset as AI strains interconnection queues.

The material

A composite, tuned for the data center.

Our edge is a proprietary composite adsorbent that stores far more water per gram than conventional materials and regenerates at the exact low temperature warm-water cooling delivers. The formulation is our own. It's the heart of the module - and a licensable material in its own right.

See the science

Macro of an ice-blue crystalline adsorbent lattice on white

Ready when you are

Cool the AI build-out on its own exhaust.

Retrofit a warm-water loop or co-design a greenfield rack. Tell us your site, climate and rack density - we'll size the opportunity.

Start a pilot