transforming
data center
cooling

Legacy cooling is hitting a wall. Icebox Energy is built from the outside-in to handle the next wave of AI infrastructure—efficient, water-free, and ready to scale.

Icebox Energy’s End-to-End
Cooling Platform 

Icebox Energy is a next-generation cooling platform built around a high-efficiency, purpose-built CO₂ heat pump. Designed to meet the demands of modern data centers — including AI, HPC, and ultra-dense workloads.

Outside-In
Architecture 

Icebox Energy flips the conventional cooling model. Instead of beginning at the chip and working outward, we start at the mechanical yard — with a centralized CO₂-based heat pump — and bring cold in with precision. This shift unlocks performance, efficiency, and flexibility. 

What this enables

  • First end-to-end closed-loop CO2 system, 50% fewer components, increased reliability in smaller, modular and scalable package

  • Eliminates intermediate losses to maximize compute per watt—enabling greater use of free cooling and lowering both average and design-day PUE, cutting energy use by 30-60%

  • Eliminates water use entirely and simplifies operations by removing need for towers, water chemistry, and F-gas

  • Powered by dense CO₂ to support 500+kW racks, 1000+W chips —10x denser than PEGwater and 30x denser than HFOs—enabling compact, high-performance deployments

  • Wide temperature flexibility, with inlet coolant temperature from 15C to 60C

Why CO₂ and Why Now

CO₂ (R-744) isn’t new — but how we use it is. As a refrigerant, it offers unmatched thermodynamic performance, ultra-low environmental impact, and unbeatable cost stability. 

Our platform

  • Thermal performance

    High heat transfer and volumetric capacity for dense cooling in compact form

  • Regulatory Certainty

    No risk of phase-out, no toxic byproducts like TFA

  • Cost Advantage

    More than 50x cheaper than HFOs, with savings that scale over time 

  • Resilience

    Potential for on-site generation and closed-loop refrigerant supply 

Our proprietary system

We’ve eliminated the limitations that once constrained CO₂ — making it viable and competitive in warm climates and high-load environments. 

Starburst illustration

Designed for
Practical Integration

Icebox was built for real-world deployment. It works with chilled water loops, RDHx, and CDU-based systems, while enabling a smooth transition to fully optimized configurations over time. No complex overhauls. No stranded assets. Just radically better cooling — deployed on operator-defined terms.

Integration

  • Simple to adopt & easy to maintain

  • Fewer, more compact parts

  • Easy to Scale

  • Fully compatible with legacy and nex-gen infrastructure

Built for the Next
Generation Not the Last

Contact Us