Changzhou, Jiangsu, China – August 20, 2026 – Permafrost is currently testing a 40ft solar container cold room for a customer in the United States. The project is intended for frozen meat storage.
The container modification, insulation installation, refrigeration unit assembly and main system integration have been completed. The project is now undergoing factory adjustment and pre-shipment inspection.
During the project confirmation stage, the customer focused on three practical questions: whether the solar equipment could help reduce electricity expenses, whether the insulation structure could limit cold air loss, and whether the cold room could meet the requirements of frozen meat storage.
Based on these needs, Permafrost developed a solution that combines the container cold room, insulation structure, refrigeration system and solar equipment in one project.
The Customer Aims to Control Electricity Expenses
Frozen storage equipment normally operates for long periods, so electricity consumption is an important consideration when customers evaluate a cold room project.
The US customer selected solar equipment to help cover part of the cold room’s electricity demand, reduce dependence on conventional power and support both long-term cost control and environmental goals.
The solar configuration includes ten 625 W solar panels, one hybrid grid-connected inverter, two 15 kWh lithium iron phosphate battery units, and the required photovoltaic cables, supports and connection accessories.
The actual share of electricity supplied by the solar system will depend on local sunlight conditions, ambient temperature, refrigeration load, door-opening frequency and operating hours.
For this reason, the solar equipment in this project is designed to assist the cold room power supply rather than completely replace conventional electricity.
Designed for Frozen Meat Storage at -18°C
The project uses a 40ft container as the main structure and is designed for frozen meat storage at -18°C.
To support low-temperature storage and reduce heat transfer through the enclosure, the cold room uses a 150 mm polyurethane insulation structure with 0.326 mm color-coated steel panels.
The insulation layer helps limit heat exchange between the cold room interior and the surrounding environment, providing the structural basis for the refrigeration system to maintain the required temperature.
Compared with building a fixed cold room entirely at the customer’s site, a container cold room allows the main structure, refrigeration connections and equipment adjustment to be completed at the factory.
After factory testing, the unit can be transported as an integrated system, reducing the amount of structural construction required at the destination.
This type of cold room can be used for meat, frozen food and other products that require low-temperature storage. The final configuration should still be based on the stored product, incoming product temperature, daily loading volume and local ambient conditions.
From Container Procurement to System Assembly
After the order was confirmed, the Permafrost team prepared the project solution according to the cold room size, storage temperature, stored product and local power standard.
The project then moved through container procurement, insulation panel production, refrigeration equipment preparation and system assembly.
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The main production work included:
● Procuring and modifying a 40ft container;
● Producing and installing the cold room insulation panels;
● Preparing the refrigeration unit, air cooler and control components;
● Installing the refrigeration piping and electrical system;
● Preparing the solar panels, inverter and battery storage system;
● Connecting and inspecting the main systems.
● The project is configured for a 220 V, 60 Hz power supply and designed around the customer’s -18°C meat storage requirement.
By completing the main system assembly at the factory, technicians can inspect equipment interfaces, refrigeration piping, electrical connections and component positions before shipment.
This reduces the amount of complex assembly work required after the equipment arrives at the customer’s site.
The Project Is Currently Undergoing Factory Testing
The solar container cold room has not yet been delivered. It is currently being adjusted and tested at the Permafrost factory.
The present work focuses on checking the refrigeration system, temperature control, electrical connections, internal air circulation and coordination between the main components.
The technical team is also inspecting the insulation structure, door sealing and the cooling process inside the cold room in relation to the customer’s frozen meat storage requirements.
Before the final testing data is confirmed, the project team will not evaluate the system based on a single temperature reading.
The overall assessment will consider temperature changes, refrigeration system operation and the working condition of the main components.
After adjustment and factory testing are completed, the project will move to accessory organization, packaging and shipment preparation.
Remote Installation Guidance and After-Sales Support
After the cold room is shipped, Permafrost will provide the customer with installation instructions and video tutorials.
During on-site connection, installation inspection and initial operation, the technical team can provide remote guidance through video calls, photographs, videos and online communication.
After-sales support will cover equipment connections, operating settings, daily use and basic maintenance.
By integrating the cold room structure, refrigeration system and solar equipment into one project, Permafrost can provide customized container cold room and solar cold room solutions based on local power standards, stored products, target temperatures and operating environments.
About Us
Permafrost Refrigeration (changzhou) Co., Ltd. Established in 2025, Changzhou Hengdong Co., Ltd. is a dynamic international trading company dedicated to bringing top-tier refrigeration and insulation technologies to the global market.
Media Contact
Company Name: Permafrost Refrigeration (changzhou) Co., Ltd.
Contact Person: Media Relations
Email: Send Email
Country: China
Website: https://www.pfcoldroom.com/