Telehouse launches pioneering liquid cooling lab

Addressing the thermal challenges of today’s high-performance computing and AI workloads, Telehouse International has launched its liquid cooling lab, following the development of strategic partnerships with four of the world’s most advanced liquid cooling technology providers.

From early 2025 onwards, the four companies – Accelsius™, EkkoSense, JetCool®, and Legrand - will showcase their advanced cooling technologies at the new, state-of-the-art liquid cooling lab at Telehouse South, the latest addition to Telehouse’s London Docklands campus – Europe’s most connected data centre hub. This pioneering project will enable Telehouse customers to explore cutting-edge liquid cooling solutions and find a solution that works best for their needs.

Accelsius is bringing its groundbreaking NeuCool™ platform to Telehouse’s London data centre, introducing a two-phase, direct-to-chip cooling solution that uses a waterless, nonconductive refrigerant for heat removal. Effortlessly removing an average heat flux of 250W/cm2 and hot spot heat fluxes above 500W/cm2, NeuCool™ offers substantial performance headroom for AI and high-performance computing.

The deployment will include the Accelsius Thermal Simulation Rack, a patent-pending system with Load Simulation Sleds that replicate high-power servers, enabling users to control, monitor, and measure the superior cooling & computational performance delivered by NeuCool technology. Telehouse clients will also have access to a live performance portal for real-time data and seamless demonstrations of the system’s capabilities.

JetCool, a Flex company, will provide its cutting-edge SmartPlate System™ in the Liquid Cooling Lab - a self-contained liquid cooling solution in compact 1U and 2U form factors. Requiring no piping, plumbing, or facility modifications, the SmartPlate System provides a hassle-free approach to efficient cooling. JetCool’s patented microconvective liquid cooling technology handles the highest-power CPUs, GPUs, and AI accelerators, cooling Superchips over 3,500W and outperforming microchannel-based designs by up to 30%, as validated by third-party testing.

JetCool’s product suite extends beyond self-contained systems to integrated rack-level liquid cooling solutions. These advanced rack-level solutions incorporate JetCool’s in-rack SmartSense™ Coolant Distribution Unit (CDU), capable of cooling up to 300kW per rack or neighboring racks, with scalability to row-based configurations exceeding 2MW. JetCool’s flexible technology empowers Telehouse tenants to choose solutions ranging from liquid-assisted air cooling to full-scale liquid cooling, meeting the demands of today’s high-performance computing and AI workloads.

Legrand will install its USystems ColdLogikCL20 Rear Door Heat Exchanger (RDHx), supporting over 90kW capacity per cabinet. Its ColdLogik RDHx negate heat at source and remove the need for air-mixing or containment. Ambient air is drawn into the rack via the IT equipment fans. The hot exhaust air is expelled from the equipment and pulled over the heat exchanger assisted by EC fans mounted in the RDHx chassis. The exhaust air transfers heat into the coolant within the heat exchanger, and the newly chilled air is expelled into the room at, or just below, the predetermined room ambient temperature designed around sensible cooling.

Both processes are managed by the ColdLogik adaptive intelligence, using air-assisted liquid-cooling to control the whole room temperature automatically at its most efficient point.

EkkoSense, a pioneer in the provision of AI-powered data centre optimisation software, will deploy its innovative EkkoSim ‘what-if?’ scenario simulations, low-cost air-side and liquid-side monitoring sensors, and web-based EkkoSoft Critical 3D visualisations with analytics and AI-powered advisory, and anomaly detection tools to Telehouse’s liquid cooling lab. Because the latest AI compute hardware and hybrid cooling infrastructure introduce new levels of engineering complexity, EkkoSense deploys the power of AI to capture, visualise, and analyse data centre performance.

Telehouse has already deployed EkkoSense’s EkkoSoft Critical platform across its London Docklands campus, optimising data centre cooling performance. A key benefit for the Telehouse operations team has been how the EkkoSense AI-powered platform has not only improved visibility into cooling and capacity performance, but also helped to reduce the administrative burden for already busy Telehouse team members.

Mark Pestridge, Executive Vice President & General Manager, Telehouse Europe, said: “Our liquid cooling lab is a very exciting partnership with three of the most innovative and experienced companies in the cutting-edge field of liquid cooling technology. We are committed to providing our customers with the best solutions that meet their needs for high levels of efficiency and sustainability.”

“The challenges generated by the growth of high-performance, high-density computing and AI are very significant, but we are confident that our collaborative approach and a firm focus on what is practical in an advanced data centre will deliver real results and provide customers and prospects with a range of realistic options.”

Josh Claman, CEO of Accelsius, said: “Partnering with Telehouse represents a significant milestone in our global expansion strategy. By showcasing our innovative cooling technology in one of the world's most significant data centre hubs, we're demonstrating our commitment to the UK market and ensuring that our cutting-edge solutions are readily accessible to potential clients across the region. As AI and other compute-intense applications continue to expand exponentially, supported by higher performance and hotter chips, our NeuCoolTM system provides the headroom to manage these new, powerful accelerators, essentially future-proofing the data centre cooling system.”

Dr Bernie Malouin, CEO of JetCool, stated: "Telehouse has been a trusted partner for industries with the most demanding performance and reliability needs, including finance and telecommunications, where we already share valued customers. This partnership offers a unique opportunity to bring JetCool’s advanced liquid cooling technology to colocation customers facing power constraints, enabling greater efficiency and compute density. Together with Telehouse, we are delivering practical, high-performance cooling solutions that address real-world challenges and unlock new sustainability and performance metrics from the rack to the facility level."

James Giblette, Business Unit Director, Legrand UK & Ireland, said: “This is a very promising partnership which provides us with another opportunity to demonstrate how our solutions-based, problem-solving, integrated approach helps the data centre industry move towards a more sustainable, energy-efficient future at a time of high-density, high-performance computing. This is a fast-changing market where co-ordinated innovation and comprehensive approach are what deliver results.”

Dr. Stu Redshaw, Chief Technology and Innovation Officer at EkkoSense, added: “given that it’s not possible to run completely liquid-cooled data centres, the reality for most data centre operators is that liquid cooling and air cooling will have an important role to play in the cooling mix – most likely as part of an evolving hybrid cooling approach. However, key engineering questions need answering before simply deploying liquid cooling – including establishing the exact blend of air and liquid cooling technologies you’ll need, and also recognising the complexity of managing the operation of a hybrid air cooling and liquid cooling approach within the same room. This increases the need for absolute real-time white space visibility, and Telehouse’s liquid cooling lab will provide a great way to explore these issues.”