Leading Industry Participants Enhancing Their Presence in the Thermal Energy Storage Market for Artificial Intelligence (AI) Data Centers

The thermal energy storage market tailored for artificial intelligence (AI) data centers is gearing up for significant expansion as demand for efficient, sustainable cooling solutions intensifies. As AI infrastructure grows, the need to manage thermal loads effectively is becoming a critical focus for industry players and data center operators. Let's explore the current market size, major drivers, key players, evolving trends, and detailed segment breakdowns that define this emerging sector.

Thermal Energy Storage Market for AI Data Centers Expected to Soar by 2030
The market for thermal energy storage in AI data centers is projected to expand rapidly, reaching a value of $4.54 billion by 2030. This represents a robust compound annual growth rate (CAGR) of 19.3%. Factors contributing to this growth include the increasing adoption of phase change materials and thermal batteries, heightened demand for carbon-neutral cooling solutions, amplified investment in AI-powered energy management platforms, and the global growth of edge and colocation data centers. Additionally, a growing emphasis on shifting cooling loads to off-peak energy hours supports this market's upward trajectory. Key trends anticipated during this period involve advances in smart thermal storage optimization software, integration of high-density liquid and immersion cooling technologies, development of modular and distributed thermal storage units for edge computing sites, and ongoing research into next-generation storage media like composite phase change materials, along with innovations in automated load balancing between thermal storage and HVAC systems.

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Primary Companies Leading the Thermal Energy Storage Market for AI Data Centers
Several key corporations are driving innovation and market penetration within thermal energy storage for AI data centers. Notable players include Siemens Energy AG, Johnson Controls International plc, Carrier Global Corporation, Trane Technologies plc, Energy Vault Holdings Inc., Antora Energy Inc., PLUSS Advanced Technologies Pvt Ltd., Steffes Corporation, MGA Thermal Pty Ltd., Electrified Thermal Solutions Inc., Sunamp Ltd., Exowatt Inc., Rondo Energy Inc., Malta Inc., Knode Pty Ltd., Nostromo Energy Ltd., EnergyNest AS, Advanced Cooling Technologies Inc., Kraftblock GmbH, and Fourth Power Inc. These companies are advancing technologies and solutions that address the unique cooling demands of AI data centers worldwide.

Emerging Innovations and Trends Driving Market Evolution
Many companies in the thermal energy storage sector are focusing on the development of state-of-the-art products, including non-flammable cold thermal energy storage (CTES) systems. These systems use water as the storage medium, offering a safer and more environmentally friendly alternative to traditional chemical batteries, while accelerating grid integration, boosting computing capacities, and reducing deployment risks and timelines.
For example, in November 2025, US-based Nostromo Energy introduced IceBrick360, a patented CTES solution designed specifically for data centers with high cooling demands. This system can shift 10-30% of a data center's peak electrical load to off-peak hours by charging when electricity costs are low and discharging stored cold energy during periods of peak demand. IceBrick360 boasts a substantial 360TRh cooling capacity per unit, a 10-year warranty, and the ability to operate daily for over 20 years with negligible performance degradation. It also features automated integration with utility signals to participate in demand-response programs, enabling immediate load reduction for the grid.

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Detailed Segmentation and Market Forecast for Thermal Energy Storage in AI Data Centers
This market is segmented based on technology, cooling type, deployment style, storage medium, and end-user categories:

1) Technology:
- Sensible Heat Storage
- Latent Heat Storage
- Thermochemical Storage

2) Cooling Type:
- Liquid Cooling
- Air Cooling

3) Deployment:
- On-Premises Data Centers
- Colocation Data Centers
- Hyperscale Data Centers
- Micro Data Centers

4) Storage Medium:
- Water
- Phase Change Materials
- Ice

5) End Users:
- Cloud Service Providers
- Enterprises and Corporate Data Centers
- AI Research and High-Performance Computing (HPC) Facilities
- Government and Defense Data Centers
- Banking, Financial Services, and Insurance (BFSI) Data Centers
- Telecom and IT Infrastructure Operators

Further subsegments include:
- Sensible Heat Storage with categories like water-based, molten salt, concrete, brick, and phase change material-based storage.
- Latent Heat Storage subdivided into organic phase change materials, inorganic phase change materials, eutectic salts, paraffin wax, and hydrated salts.
- Thermochemical Storage broken down into adsorption, absorption, chemical reaction, reversible hydration, and metal hydride storage types.

Together, these segments provide a comprehensive framework to understand the evolving thermal energy storage market and its critical role in supporting the expanding AI data center infrastructure.

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