Photovoltaic Storage System Project
Case introduction

CASE

Case

Photovoltaic Storage System Project

Project Overview
This project is located in Spain. The photovoltaic storage system comprises a 30KW photovoltaic inverter and an 86KWh energy storage battery, forming an off-grid photovoltaic storage system. It is equipped with nine 550W photovoltaic panels. The system meets the client’s current requirement for no mains electricity supply, while also incorporating a hybrid grid-tied/off-grid mode to accommodate future mains electricity connection needs.



  1. Project Specifications

Applications

Off-Grid Standby Mode: During mains power outages or absence, the photovoltaic system supplies loads and charges the storage batteries when operational. When PV generation is insufficient or unavailable, the storage batteries power loads until battery capacity falls below 10%, at which point the system enters standby or shutdown mode until PV generation resumes.

 

Grid-Connected Hybrid Mode (Reserved Functionality): A backflow prevention device is installed on the AC input side of the PV inverter to enable grid connection of the PV generation. In this mode, the system connects to the grid when mains power is available, ensuring priority use of PV power for self-consumption. Future upgrades will enable the sale of surplus PV electricity to the grid as required.

 

Installed Capacity

Total PV system power: 30kW (including PV inverter and 9 x 550W PV panels)

Total energy storage capacity: 86kWh

 

Principal Equipment

PV inverter: 1 x 30kW PV inverter

Energy storage battery: 86kWh energy storage battery

High-voltage enclosure: High-voltage enclosure for energy storage battery and inverter

Photovoltaic Panels: 9 x 550W photovoltaic panels

Backflow Prevention Meter (Reserved Function): For backflow protection during grid connection operation


Project Video

Spain 86KWh Photovoltaic Storage System Project

Project advantages

Off-Grid Power Supply Reliability
Off-Grid Power Supply Reliability
The system provides stable electricity supply via photovoltaic generation and energy storage batteries during mains power outages, safeguarding customers' daily electricity needs.
High-Efficiency PV Generation and Energy Storage Integration
High-Efficiency PV Generation and Energy Storage Integration
The combination of a 30kW PV inverter and 86kWh energy storage battery ensures customers maintain sufficient power even without mains electricity, meeting efficient storage and usage requirements.
Future Grid-Connection Capability
Future Grid-Connection Capability
The system offers flexibility for future grid integration, with configurable settings enabling both ‘self-generation for self-consumption’ and ‘selling surplus PV electricity’ options, aligning with future grid access requirements.
Environmental Sustainability and Energy Conservation
Environmental Sustainability and Energy Conservation
y harnessing photovoltaic generation, the system reduces reliance on fossil fuels, lowers carbon emissions, and advances sustainable energy development.
Intelligent Monitoring and Management
Intelligent Monitoring and Management
Equipped with smart management capabilities, the system provides real-time oversight of battery charge/discharge status, PV generation output, and overall operational health, ensuring efficient system performance.

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

Please feel free to call our customer service hotline or leave us a message online. We will provide you with efficient and comprehensive service.
Contact Us
X

Send Us A Message

You can send us your product requirements or questions here

Submit Now