BASX Powers Advanced Cooling Innovation for Applied Digital's Purpose-Built AI Data Center Campus

PR Newswire

REDMOND, Ore., June 30, 2025

At Applied Digital's Ellendale, North Dakota campus, BASX is deploying bespoke free cooling chillers — optimized for cold-climate operation, reducing power demand, and requiring zero water consumption

REDMOND, Ore. , June 30, 2025 /PRNewswire/ --  BASX , a leader in advanced cooling and custom solutions for data centers and mission-critical environments, and a wholly owned subsidiary of AAON , Inc. (Nasdaq: AAON), a leading provider of high-performance, energy-efficient HVAC solutions, today announced a partnership with Applied Digital Corporation (Nasdaq: APLD) ("Applied Digital"). Applied Digital, a designer, builder, and operator of next-generation digital infrastructure designed for High-Performance Computing (HPC) applications.

BASX logo written in black with the letter X highlighted in red. (PRNewsfoto/AAON)

As part of the collaboration, BASX designed and manufactured a customized free cooling chiller system for Applied Digital's AI factory in Ellendale, North Dakota , known as Polaris Forge 1. The system is purpose-built to meet the performance demands of AI infrastructure in a cold climate, while maximizing energy efficiency and sustainability.

Built to endure the harshest climates, the free cooling chiller system performs in three optimized modes –– all with zero water use.

  • Full Free Cooling: Rejects 100% of the IT load using only pumps and fans.
  • Partial Free Cooling: Leverages ambient air to handle as much of the load as possible, supplementing with direct expansion (DX) cooling as needed.
  • Full Mechanical Cooling: Engages compressors and coils to provide full DX capacity during peak ambient conditions.

"As a leading provider of AI factories, designed and built specifically to support NVIDIA liquid-cooled GPUs, innovation is a core component of our business. We presented a challenge to BASX to develop a highly efficient chiller to leverage North Dakota's climate conditions and the demands presented by liquid-cooled servers and, as they are known to do, BASX engineered, designed, and built a world-class system that we are deploying at our Polaris Forge 1 site." said Todd Gale , Chief Development Officer at Applied Digital.

"From the onset, this was about more than delivering standard HVAC — it was a collaboration between two teams determined to break away from cookie-cutter solutions," said Matt Tobolski , PhD – AAON CEO & BASX Co-Founder. "Applied Digital brought us a clear challenge, and we responded with a system engineered from the ground up to meet it. We solve problems at the root and build for what's next, not just what's easy."

AI factories like Polaris Forge 1 require 15 to 30 times the power density of traditional data centers, making conventional power and cooling strategies insufficient, according to a May 28, 2024 , press release from Applied Digital. Meeting these demands requires infrastructure engineered from the ground up to support high-density, compute-intensive workloads.

As AI adoption accelerates, demand for high-efficiency cooling solutions continues to grow. Higher return fluid temperatures enabled by direct-to-chip cooling allow more heat to be rejected directly to ambient air, even in warmer conditions. This system demonstrates a scalable approach to thermal management — designed for operators who prioritize innovation, efficiency, and long-term sustainability.

ABOUT BASX
BASX, a wholly owned subsidiary of AAON, is a leader in manufacturing high-efficiency data center cooling, cleanroom systems, custom HVAC, and modular solutions. For the past 40 years, the BASX team has been recognized as leaders in the development of industry-changing innovations such as changes in the way fans are applied in modern air handling systems. With in-house manufacturing and a dedicated engineering team providing end-to-end support, BASX delivers fully custom solutions tailored to each client's unique needs. Headquartered in Redmond, Oregon , with additional facilities in Tulsa , Longview, and Memphis , BASX remains committed to quality, reliability, and exceptional customer service worldwide.

ABOUT AAON
Founded in 1988, AAON is a world leader in HVAC solutions for commercial and industrial indoor environments. The Company's industry-leading approach to designing and manufacturing highly configurable equipment to meet exact needs creates a premier ownership experience with greater efficiency, performance and long-term value. AAON is headquartered in Tulsa, Oklahoma , where its world-class innovation center and testing lab allows AAON engineers to continuously push boundaries and advance the industry. For more information, please visit www.aaon.com .

ABOUT APPLIED DIGITAL
Applied Digital (Nasdaq: APLD) develops, builds and operates next-generation data centers and cloud infrastructure. Different by design, the company's purpose-built facilities are engineered to unleash the power of accelerated compute and deliver secure, scalable and sustainable digital hosting, along with turnkey CSaaS and GPU-as-a-Service solutions. Backed by deep hyperscale expertise and a robust pipeline of available power, Applied Digital accommodates AI Factories and beyond to support the world's most exacting AI/ML, blockchain and high-performance computing (HPC) workloads.

Applied Digital Contact Information:
JSA
jsa_applied@jsa.net

BASX Contact Information:
Christina Lattanzio
Christina.lattanzio@aaon.com
(918) 382 - 6597 

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