Solar-Powered Containerized Cold Storage: Efficient & Sustainable Cooling Solution
This solar-integrated 20ft containerized cold storage unit combines portability with eco-friendly refrigeration, ideal for off-grid or remote applications. Featuring a 20.3 m³ internal space (4900×2090×1990 mm), it utilizes 100mm polyurethane insulation panels (U-value 0.22 W/m²·K) and a 3HP Sanyo inverter compressor to maintain temperatures from -20°C to +15°C, supporting up to 5 tons of goods. The integrated 2.75kW solar system (5×550W panels) and 10kWh LiFePO4 battery enable hybrid power operation, reducing grid dependence by 60–80% and cutting annual electricity costs by ~USD 560 (at 0.8 USD/kWh).
Designed for rapid deployment, its 1.5mm steel structure allows forklift and crane handling, eliminating costly infrastructure. The 6.2kW hybrid inverter ensures seamless grid/solar switching, while the R404a refrigerant and variable-speed compressor enhance energy efficiency by 30% versus conventional units. With a factory price of USD 9500 (ex-tax), it targets agricultural, pharmaceutical, and emergency logistics sectors, offering a 3–5-year ROI.
Key upgrades include scalable battery options for extended autonomy and future-ready refrigerant compliance. A sustainable, cost-effective alternative to traditional cold storage, this solution prioritizes mobility, low carbon footprint, and operational resilience in energy-challenged environments.
External Dimensions: 6000×2400×2400 mm (standard 20ft container size, easy for transportation and lifting).
Internal Space: 4900×2090×1990 mm (effective volume ≈20.3 m³).
Wall Panels: 100mm polyurethane foam insulation panels (density: 40kg/m³, dual-sided 0.326mm color steel sheets; U-value ≈0.22 W/m²·K).
Door: 1800×800 mm cold storage door (sealed with anti-condensation design).
Exterior: 1.5mm steel plate, forklift slots at the base, and top lifting lugs.
Unit: 3HP (≈7.5kW cooling capacity) integrated inverter-driven system.
Compressor: Sanyo inverter compressor (IPLV ≥3.5, operable at -20℃~15℃).
Operating Power: 2300W (inverter reduces power to 30% at low load).
Refrigerant: R404a (suitable for low temps, GWP=3922; note regulatory compliance).
Cooling Performance: 8–12 hours to cool 5-ton cargo from ambient to -20℃ (environment-dependent).
PV Panels: 5×550W monocrystalline modules (total 2750W; daily output ≈10–15kWh*).
Hybrid Inverter: 6.2kW 220V (seamless grid/solar switching, MPPT efficiency ≥98%).
Battery: 2×5kWh LiFePO4 batteries (10kWh total; cycle life ≥3000).
Off-grid Runtime: ≈4 hours at full load (requires solar replenishment).
*Daily output assumes 4 peak sun hours; varies by location/season.
Unit Price: USD 9,500 (ex-factory, tax and shipping excluded).
Applications: Farm produce pre-cooling, remote medical storage, emergency logistics.
Energy Efficiency
Solar covers 60–80% of daily energy needs, saving USD 450–750/year (at CNY 0.8/kWh).
Inverter compressor + high insulation reduces energy use by 30% vs. conventional units.
Mobility
Modular container design enables rapid deployment without construction.
Dual power modes (grid/solar) ideal for unstable grid areas.
Cost-effectiveness
Lower upfront cost vs. traditional cold storage + standalone solar systems; ROI ≈3–5 years.
Battery Scalability: 10kWh storage may be insufficient for prolonged cloudy days; add expansion ports.
Temperature Stability: Specify fluctuation range (±1℃/±2℃) for sensitive goods.
Eco-compliance: Transition to low-GWP refrigerants (e.g., CO2/R290) amid tightening regulations.
| Indicator | This Product | Traditional Cold Storage |
|---|---|---|
| Initial Cost | USD 9500 | USD 6,000–6,850 (no solar) |
| Annual Op. Cost (Power) | ~USD 110 (solar) | ~USD 650 |
| Deployment Time | 1–2 days | 7–15 days (construction needed) |
| Carbon Footprint | 60–90% reduction | No reduction |
This solar-integrated containerized cold storage offers off-grid, low-carbon operation for remote or unstable grid regions. Key considerations include battery scalability for high-demand scenarios and monitoring refrigerant regulations. For daily energy needs exceeding 15kWh, additional PV panels or backup generators are recommended.
External Dimensions: 6000×2400×2400 mm (standard 20ft container size, easy for transportation and lifting).
Internal Space: 4900×2090×1990 mm (effective volume ≈20.3 m³).
Wall Panels: 100mm polyurethane foam insulation panels (density: 40kg/m³, dual-sided 0.326mm color steel sheets; U-value ≈0.22 W/m²·K).
Door: 1800×800 mm cold storage door (sealed with anti-condensation design).
Exterior: 1.5mm steel plate, forklift slots at the base, and top lifting lugs.
Unit: 3HP (≈7.5kW cooling capacity) integrated inverter-driven system.
Compressor: Sanyo inverter compressor (IPLV ≥3.5, operable at -20℃~15℃).
Operating Power: 2300W (inverter reduces power to 30% at low load).
Refrigerant: R404a (suitable for low temps, GWP=3922; note regulatory compliance).
Cooling Performance: 8–12 hours to cool 5-ton cargo from ambient to -20℃ (environment-dependent).
PV Panels: 5×550W monocrystalline modules (total 2750W; daily output ≈10–15kWh*).
Hybrid Inverter: 6.2kW 220V (seamless grid/solar switching, MPPT efficiency ≥98%).
Battery: 2×5kWh LiFePO4 batteries (10kWh total; cycle life ≥3000).
Off-grid Runtime: ≈4 hours at full load (requires solar replenishment).
*Daily output assumes 4 peak sun hours; varies by location/season.
Unit Price: USD 9,500 (ex-factory, tax and shipping excluded).
Applications: Farm produce pre-cooling, remote medical storage, emergency logistics.
Energy Efficiency
Solar covers 60–80% of daily energy needs, saving USD 450–750/year (at CNY 0.8/kWh).
Inverter compressor + high insulation reduces energy use by 30% vs. conventional units.
Mobility
Modular container design enables rapid deployment without construction.
Dual power modes (grid/solar) ideal for unstable grid areas.
Cost-effectiveness
Lower upfront cost vs. traditional cold storage + standalone solar systems; ROI ≈3–5 years.
Battery Scalability: 10kWh storage may be insufficient for prolonged cloudy days; add expansion ports.
Temperature Stability: Specify fluctuation range (±1℃/±2℃) for sensitive goods.
Eco-compliance: Transition to low-GWP refrigerants (e.g., CO2/R290) amid tightening regulations.
| Indicator | This Product | Traditional Cold Storage |
|---|---|---|
| Initial Cost | USD 9500 | USD 6,000–6,850 (no solar) |
| Annual Op. Cost (Power) | ~USD 110 (solar) | ~USD 650 |
| Deployment Time | 1–2 days | 7–15 days (construction needed) |
| Carbon Footprint | 60–90% reduction | No reduction |
This solar-integrated containerized cold storage offers off-grid, low-carbon operation for remote or unstable grid regions. Key considerations include battery scalability for high-demand scenarios and monitoring refrigerant regulations. For daily energy needs exceeding 15kWh, additional PV panels or backup generators are recommended.
