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Nostromo Energy

We provide cold thermal energy storage that shifts cooling to off-peak hours, reducing peak loads and carbon emissions in large buildings and data centers

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About Us

We develop IceBrick Cold Thermal Energy Storage (CTES) technology that enables large commercial buildings and data centers to shift cooling loads to off-peak hours by charging our IceBrick arrays and storing cooling in the form of ice. The stored thermal energy is then discharged on demand, reducing cooling demand during peak grid hours and extreme heat events.
Our system can be used to participate in demand response programs or to generate revenue by offering flexible cooling capacity to the grid. Alternatively, it can be deployed internally to optimize site design performance by curtailing cooling loads on the hottest days of the year and defining optimized worst-case scenarios that determine the available megawatts a site can sell. This approach can improve site revenues by approximately 3–6% while reducing operational emissions.
For example, at a site like the Beverly Hilton, a 2000 RT IceBrick installation (equivalent to ~1000 kWh of lithium-ion storage) can reduce emissions by up to 300 metric tons of CO₂ annually

Relevant Challenges

Operational Systems

We reduce peak electrical loads from cooling systems by decoupling cooling demand from real-time electricity consumption. By supplying stored cooling during the hottest and most carbon-intensive hours, we improve HVAC efficiency, support resilient building operation under extreme heat, and lower emissions without compromising comfort or reliability

Energy Storage

We provide long-duration, stationary thermal energy storage tailored to cooling-intensive assets such as large buildings and data centers. Our IceBrick system enables load shifting, demand response participation, and grid capacity monetization, offering a safe, durable, and cost-effective alternative to battery-based storage for thermal loads

Year Founded:
2016
Country:
Israel
Funding Stage:
B
Product Stage:
Pilot to First Paying Customer
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