Cold Storage Powered by the Sun. Guaranteed Stable Temperature, 24/7.
Cold storage facilities are among the most energy-intensive industrial assets, operating 24/7 with strict temperature stability requirements. Sun Ice Energy transforms conventional refrigeration into a solar-powered thermal energy storage system using our patented Ice Wall — a water-based thermal energy buffer. The result: lower operating costs, reduced grid dependency, and guaranteed temperature stability.
CORE VALUE
Protect your inventory and your bottom line. Sun Ice transforms cold storage into a clean, cost-controlled asset powered primarily by solar energy. Operating costs and carbon footprint are significantly reduced, with the electrical grid acting only as a silent backup for ultimate peace of mind.
Why Solar Thermal Storage for Cold Chain?
Refrigeration can represent more than 50% of total facility energy consumption in cold chain logistics. By storing renewable energy as cold through controlled PCM freeze–melt cycles, facilities gain energy resilience, peak load reduction, and long-term cost stability.
- Reduce peak demand charges through thermal load shifting
- Stabilize operating costs against volatile electricity pricing
- Enhance refrigeration resilience during grid instability
- Support ESG, sustainability, and net-zero carbon goals
Near Zero Energy with Temperature stability (±0.5 °C).
Proven Performance: Shanghai Pilot
- 35 m³ cold storage room maintained at 4°C
- Daily electricity savings: 40 kWh
- Annual energy cost savings: €4,500
- Investment payback: 3 years or less
- CO₂ reduction: 9 tonnes per year
HOW DOES IT WORK
Generate & Cool
Your on-site solar panels serve as the primary power source. This renewable electricity simultaneously: Powers the chillers to handle real-time cooling demand (countering infiltration heat, equipment loads, door openings, etc.) and Charges the Ice Wall thermal storage buffers by freezing the Ice walls, building a reserve of stored cooling capacity
Discharge On Demand
When solar power is unavailable—at night, during cloudy periods, or peak tariff windows—the Ice Wall seamlessly releases stored cooling energy to maintain precise temperature stability, minimizing or eliminating the need for grid electricity.
Technical Performance Highlights
- Latent heat storage using using 0C Ice Walls freeze–melt cycles
- Temperature stability target: 4±0.5°C, 24/7/365
- Peak load reduction and demand charge optimization
- Improved refrigeration efficiency and reduced compressor cycling
- Integration-ready with Building Management Systems (BMS)
The Bottom Line for You
- Reduce cooling energy costs to near-zero — freeing capital for growth
- Virtually eliminate the carbon footprint of refrigeration — meet sustainability mandates with ease
- Guarantee rock-solid temperature stability (±0.5°C) 24/7/365 — protect your inventory from spoilage
- Insulate your business from energy price spikes — achieve predictable, stable operating costs
Live Data & Performance Transparency
- Solar generation
- Ice Wall charge status
- Internal temperature stability
- Grid power consumption levels
Applications Within Cold Chain
- Refrigerated warehouses
- Food processing and logistics centres
- Pharmaceutical cold storage
- Temperature-sensitive industrial environments
Brochures and Downloads
F.A.Q
Yes. The thermal energy buffer stores cooling during the day and releases it at night, ensuring continuous operation.
Yes. Sun‑Ice can provide heating by pairing the system with a reversible heat pump.
The heat pump produces hot water, which is circulated through the Sun‑Ice system, allowing it to operate like a highly efficient, fan controlled radiator.
Sun‑Ice uses solar energy to freeze a thermal energy storage buffer during the day.
That stored cooling is then released to keep the building comfortable at night or during cloudy periods.
No electrical batteries are required when used with Grid support.
Maintenance needs are low.
The system has few moving parts and no chemical battery cells.
Routine checks are similar to standard cooling equipment.
It depends on the building size, insulation quality, and cooling load.
During design, we work with the architect to size the solar array and thermal energy storage buffer so that solar provides the primary cooling energy year‑round.
Powered by the Sun. Guaranteed Stable, 24/7
