Accelsius, a company founded by Innventure, Inc. (NASDAQ: INV), has upgraded its Springdale facility in Austin, Texas, to multi-megawatt power capacity for two-phase liquid cooling testing, the company announced at the Open Compute Project (OCP) Global Summit 2026 in San Jose.

The upgraded lab allows Accelsius to test its NeuCool platform at rack densities and facility water temperatures associated with next-generation AI infrastructure. The company said the facility can now power a single rack at megawatt-plus loads or multiple racks at current high-density levels. An 18,000-square-foot expansion at the same location is scheduled to open in January 2027.

"Two-phase cooling has moved from proving the physics to scaling the product, and that means testing at the power levels our customers are actually planning for," said John Hewitt, CEO of Accelsius.

Independent benchmark results published in July showed NeuCool delivering 9°C lower Nvidia B200 junction temperatures than single-phase direct-to-chip cooling under warm-water conditions, and matching single-phase performance at Nvidia's 45°C facility water benchmark with inlet water as warm as 54°C. The company states that each 1°C increase in facility water temperature corresponds to approximately 4% in annual energy savings.

Accelsius said several hyperscalers are engaged through its NeuCool HyperStart program, which offers operators a path to validate two-phase cooling for data center reference designs. The company is also expanding its NeuCool multi-rack product line with a 375kW-capable unit, beyond the existing MR250 model, with additional details expected in coming months.

The Springdale facility is located in Central Texas, where summer temperatures regularly exceed 100°F, which the company describes as a real-world environment for warm-water cooling validation.

Accelsius is exhibiting at the OCP Global Summit, running October 12–15 at the San Jose McEnery Convention Center.