Carbon3.ai has signed an agreement to deploy Nvidia Blackwell Ultra AI infrastructure with HPE’s direct liquid-cooled servers at its data centers in the UK.

Revealed on December 17, the company will deploy HPE ProLiant Compute XD685 servers with Nvidia Blackwell Ultra chips across a “nationwide network of data centers.”

The systems will be hosted within an HPE AI Mod POD, a modular data center solution that can be placed in a variety of locations and is already fitted with HPE cooling solutions.

The clusters are connected with Nvidia Spectrum-X and Nvidia BlueField-3. In addition, Carbon3.ai claims that using liquid cooling enables it to reduce the energy usage of the deployment by up to 30 percent, while the company also uses on-site generated renewable energy to power its data centers.

Carbon3.ai’s AI platform runs on the Vast Data platform, which enables information to be stored, accessed, and used quickly.

“Nvidia HGX B300 represents a generational leap in performance and efficiency,” said Mick McNeil, co-founder & chief business officer at Carbon3.ai. “This isn’t just about faster GPUs – we’re supporting the building of an AI economy that runs on UK energy, UK infrastructure, and under UK jurisdiction. Deploying Nvidia’s infrastructure with HPE on our sites will help us deliver world-class performance, alongside resilient, lower-carbon compute power to our customers.”

“With the deployment of Nvidia Blackwell Ultra GPUs on HPE liquid-cooled AI servers, Carbon3.ai is tackling a core barrier to the UK’s AI adoption – efficient, scalable, and sovereign AI infrastructure,” added Matt Harris, SVP & managing director for UK, Ireland, Middle East, and Africa at HPE. “By creating resilient, local infrastructure that lowers cost of ownership and carbon footprint of AI, Carbon3.ai is enabling UK organizations to stay in control as they operationalize and scale their projects, leading the way on accelerating responsible AI adoption in the UK.”

Carbon3.ai launched a UK-based sovereign AI platform in September 2025, claiming at the time that it would eventually comprise 100,000 GPUs, aiming to reach more than 30 locations.

The company revealed plans for a modular AI data center in Derbyshire in November 2025.

On its website, the firm claims to have 50MW of available capacity, and a pipeline of 4.5GW. It appears to be planning four hyperscale data centers around the UK, as well as a network of 30 “rapid deployment sites.”

Little information about the company and how it is funded is available, though it appears to be a subsidiary of Valencia Energy, which operates the Erin Powerplant and other similar facilities around the country. Two of Carbon3.ai’s co-founders also hold senior roles with Valencia.