Integrated Photovoltaic Folding Storage Container Project
Case introduction

CASE

Case

Integrated Photovoltaic Folding Storage Container Project

Project Overview
This project constitutes a DC-coupled photovoltaic-storage integrated system, incorporating folding photovoltaic panels with energy storage functionality. It is designed for flexible grid dispatch and peak shaving/valley filling applications within commercial and industrial settings. The system supports intelligent grid-connected and off-grid switching, offering multiple operational modes including self-generation for self-consumption, anti-backflow protection, off-grid power supply, and electricity arbitrage. It aims to enhance energy autonomy, supply reliability, and economic benefits.



  1. Project Details

Applications

Supports grid dispatch and peak shaving/valley filling for commercial and industrial applications;

Enables self-generation for self-consumption, with optional grid injection of surplus power (configuration dependent);

Automatically switches to off-grid mode during mains power outages to ensure continuous supply to critical loads;

Leverages peak-off-peak electricity price differentials by charging during off-peak hours and discharging during peak hours to reduce electricity costs.

Installed Capacity

Photovoltaic capacity: 24 kWp (foldable photovoltaic container);

Energy storage system capacity: 30 kW / 71 kWh.

Principal Equipment

Integrated PV-Storage Unit

Batteries and Battery Management System (BMS)

Air Conditioning System

System Architecture: Integrated PV+storage design enabling rapid deployment.



Project advantages

High-Efficiency Integration
High-Efficiency Integration
DC-coupled architecture enhances energy conversion efficiency;
Flexible Deployment
Flexible Deployment
Foldable container design facilitates transport and on-site installation with plug-and-play capability;
Intelligent Operation
Intelligent Operation
Built-in Energy Management System (EMS) automatically switches operating modes based on grid status, PV output, and load demand;
Strong Cost Efficiency
Strong Cost Efficiency
Automatically optimises charging/discharging via peak shaving and valley filling strategies, significantly reducing demand charges;
High Reliability
High Reliability
Supports seamless grid-connected/off-grid switching, ensuring continuous power supply during grid outages;
Grid-Friendly
Grid-Friendly
Configurable anti-backflow function meets policy or customer requirements prohibiting power injection into the grid.

Core products

Satellite Communication Energy Cabinet
Satellite Communication Energy Cabinet

The Satellite Communication Energy Cabinet is a PV energy storage cabinet from Highjoule Technology Group designed specifically for off-grid satellite communication sites. The system consists of PV modules, an MPPT solar controller, an LFP (Lithium Iron Phosphate) battery pack, a thermal management system, and a power distribution unit, forming a complete off-grid PV generation and energy storage system that provides stable power to satellite communication base stations. The system adopts a modular design and can be efficiently operated and maintained via local and remote monitoring. It supplies 48V DC and AC 120V–200V power to satellite and other industry communication equipment, supporting floor-standing and pole-mount installation.

Outdoor Battery Cabinet
Outdoor Battery Cabinet

The Outdoor Battery product line is centered on green low-carbon, high-efficiency, and intelligent coordination principles. It covers both indoor and outdoor configurations, with lithium batteries (or lead-acid batteries) forming battery energy storage cabinets. Each cabinet also houses environmental sensors, battery circuit breakers, battery cables, and thermal management accessories to form an integrated battery cabinet.

Hybrid Power System
Hybrid Power System

The Site Hybrid Power System is a next-generation multi-energy integrated power supply for 4G/5G base stations, communication equipment rooms, edge data centers, and outdoor compact sites. It breaks the traditional “single grid input, single DC output” architecture to achieve multi-source energy input + multi-voltage output + intelligent coordinated dispatch. At the site level, it accommodates grid power, PV, energy storage, diesel generators, and other sources, delivering a highly reliable, efficient, and simply deployable power framework for 5G equipment, transmission equipment, and IoT loads. Power range: 6 kW–36 kW; available in both 3U and 1U circuit breaker configurations.

Stacked-PV MPPT Solar Controller
Stacked-PV MPPT Solar Controller

The Stacked-PV MPPT Solar Controller is specially developed for PV capacity expansion at base station sites. Using a series-connection scheme, the system consists of PV modules, a stacked-PV MPPT controller, and a DC meter. Each PV string is series-connected to the controller, which steps down the module output voltage to −48V and injects it onto the rectifier output busbar to supply DC loads. Designed for communication base stations, it supports wall-mount and pole-mount installation. The product is available in outdoor and rack-mount versions.

Outdoor Hybrid Energy Cabinet
Outdoor Hybrid Energy Cabinet

The products deeply integrate AC/DC conversion, multi-energy intelligent scheduling, energy storage charge/discharge management, and remote monitoring technologies. Flexibly deployable in indoor equipment rooms, outdoor 5G base stations, and remote sites, they ensure uninterrupted power for communications and critical loads while maximizing green energy consumption, reducing energy use and carbon emissions, and upgrading traditional power supply to a clean, intelligent, integrated site energy solution.

Solution

Professional Integrated "Turnkey" Service System

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