Data centres don’t just need more power. They need a smarter way to manage cooling.
As AI and high-performance computing continue to drive demand for data-centre capacity, cooling is becoming one of the biggest challenges facing operators.
That’s where O-Hx and its EnergiVault technology could become particularly interesting.
EnergiVault is an advanced modular cold thermal energy storage system designed to store cooling capacity when electricity is cheaper and lower-carbon — and then release that cooling rapidly when demand peaks.
The technology works by converting heat-transfer fluid into microscopic spherical ice crystals, effectively creating a highly responsive thermal battery.
Why is that interesting for data centres?
Because cooling demand is continuous, energy-intensive and increasingly difficult to manage as rack densities increase.
EnergiVault is designed to:
▪️ Reduce peak electricity demand
▪️ Shift cooling loads into lower-tariff periods
▪️ Provide rapid, high-capacity cooling when required
▪️ Retrofit onto existing chilled-water infrastructure
▪️ Help protect critical facilities against capacity constraints and costly downtime
▪️ Support the growing cooling requirements of high-density computing and AI infrastructure
The real opportunity here is not simply another cooling system. It is about turning cooling from a fixed energy cost into something that can be actively stored, managed and optimised.
And as data-centre operators around the world look for ways to increase capacity without proportionally increasing grid demand, technologies like EnergiVault could become increasingly important.
O-Hx has developed some genuinely interesting technology, and I’m particularly interested in exploring how we can help scale the system into the data-centre market.
If you’re involved in data centres, cooling infrastructure, energy management, infrastructure investment or commercialisation and would be interested in exploring how this technology could be scaled, please get in touch
