Nostromo Energy Launches IceBrick 360, a Cold-Thermal Storage System for Data Centers

Nostromo Energy Launches IceBrick 360, a Cold-Thermal Storage System for Data Centers December 9, 2025 As data centers grapple with soaring energy demands and grid constraints, particularly for power-intensive cooling systems, new solutions for load shifting and efficiency are gaining critical importance. Israeli firm Nostromo Energy has entered this arena with the commercial launch of its "ice battery" technology, a move that could signal a shift away from traditional mechanical chillers. The company recently unveiled the IceBrick 360, a patented cold-thermal energy storage system engineered specifically for high-demand data centers. The technology works by freezing water stored in modular cells during off-peak hours when electricity is cheaper and grid demand is lower. This stored "cold" is then used to chill the liquid for a data center's HVAC system during peak periods, effectively eliminating the need for energy-hungry mechanical chillers to run at those times. According to Nostromo, this process can make up to 40 percent of a data center's power consumption flexible, allowing operators to significantly reduce their energy costs and alleviate strain on the local power grid. The system is designed to help expedite grid connections for new facilities or increase the computing capacity of existing locations. CEO Yoram Ashery confirmed the company has already secured its first data center customer and is in active discussions with several others. The launch comes as Nostromo holds a substantial loan guarantee of up to $305.5 million from the U.S. Department of Energy, allocated under a previous administration, to deploy its technology across 193 commercial buildings in California. While other vendors like Trane and PureThermal also market thermal energy storage, Nostromo's focused entry into the data center cooling market highlights a growing industry trend toward decoupling energy consumption from peak operational times. If widely adopted, such technologies could provide data center operators with a powerful tool for cost management and sustainability, while supporting broader grid stability efforts. Source: datacenterdynamics