JCI invests in two-phase liquid cooling
6th October 2025
IRELAND: Johnson Controls has announced what it describes as a multi-million dollar strategic investment in Accelsius, a leader in two-phase, direct-to-chip liquid cooling technology for data centres.
Two-phase solutions use phase change from liquid to vapour to remove heat, enabling more efficient heat extraction with reduced energy consumption.
Said to be simple to install, energy efficient and compact, it is adaptable for a broad range of critical electronic equipment and can be deployed at any scale, from a single server to large data centres.
Accelsius was established by US corporation Innventure in 2022, when it acquired the rights to the technology in 2022 from Nokia Bell Labs, a subsidiary of Finnish telecom company Nokia.
“Our two-phase, direct-to-chip (D2C) cooling solutions use non-conductive fluids in highly efficient loops to stay ahead of the demanding power-dense AI and HPC workloads. This technology enables 35% OpEx savings over single-phase direct-to-chip and 8-17% total cost of ownership savings,” explained Accelsius CEO Josh Claman.
Announcing the investment, Austin Domenici, vice president and general manager of Johnson Controls global data centre solutions, said: “With the sharp growth in AI, cooling innovation has become a front-line imperative to meet the increasing demands of high-density data centres. Leveraging our leading capabilities, our mission is to drive the industry forward to unlock new levels of energy efficiency across the cooling chain.”
Related stories:
Accelsius to commercialise Nokia data cooling system – 14 June 2022
FINLAND/USA: US corporation Innventure has established a new company, Accelsius, to commercialise a passive two-stage thermosyphon cooling system for critical electronic equipment developed by Finnish telecom company Nokia. Read more…
