Description

50kWh Deye High-Voltage 3-Phase Industrial Solar System

48kWp Jinko Bifacial Solar PV Array + 25.6kWh Deye High-Voltage Lithium Battery Backup

This is a commercial-grade, high-voltage three-phase hybrid solar system designed to provide reliable solar power, reduce dependence on grid electricity and provide battery backup during power interruptions.

The system combines a 50kW Deye high-voltage three-phase hybrid inverter, 5 × Deye 5.12kWh high-voltage lithium battery modules, a Deye Battery Management Unit (BMU) and 80 × 600W Jinko bifacial all-weather solar PV modules.

The 80 solar modules provide a total installed PV capacity of 48kWp, while the five battery modules provide 25.6kWh nominal battery storage.

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1. Deye 50kW High-Voltage 3-Phase Hybrid Inverter

Model: SUN-50K-SG01HP3-EU-BM4
Quantity: 1 pc
Power rating: 50kW
Phase: Three-phase
Type: High-voltage hybrid solar inverter

The Deye 50kW hybrid inverter is the heart of the system. It manages energy generated by the solar panels, energy stored in the lithium batteries, grid electricity and the connected three-phase loads.

Advantages

• 50kW high-power output suitable for commercial applications.
• Three-phase operation.
• High-voltage battery compatibility.
• Intelligent solar and battery energy management.
• Supports solar self-consumption and battery energy storage.
• Provides backup power to designated loads during grid outages.
• Suitable for commercial and industrial applications.
• Helps reduce dependence on grid electricity.

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2. Deye High-Voltage Lithium Battery Bank

5 × Deye 5.12kWh High-Voltage Lithium Batteries

Model: Deye BOS-W
Quantity: 5 pcs
Capacity: 5.12kWh per battery
Nominal voltage: 51.2V per module
Capacity: 100Ah per module
Chemistry: LiFePO₄
Communication: CAN 2.0 / RS485
Total nominal storage: 25.6kWh

The five Deye lithium battery modules form the energy-storage section of the system.

During periods of high solar production, excess energy can be stored in the battery bank and subsequently used during the evening, at night or whenever solar production is insufficient.

Advantages

• Approximately 25.6kWh total nominal energy storage.
• LiFePO₄ battery chemistry.
• Modular rack-mounted configuration.
• High-voltage energy-storage architecture.
• CAN and RS485 communication.
• Suitable for commercial solar applications.
• Provides reliable backup energy.
• Allows greater utilization of solar energy generated during the day.

The original system document specifies the Deye BOS-W module at 5.12kWh, 100Ah, 51.2V, with LiFePO₄ chemistry and CAN 2.0/RS485 communication.

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3. Deye Battery Management Unit — BMU

Quantity: 1 pc

The Deye BMU is used to manage and coordinate the high-voltage battery cluster. It facilitates communication between the battery modules and the inverter and helps ensure that the battery bank operates as an integrated system.

Advantages

• Coordinates the connected battery modules.
• Facilitates battery/inverter communication.
• Supports proper management of the high-voltage battery bank.
• Helps monitor battery operating parameters.
• Provides organized control of the battery cluster.

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4. Jinko 600W Bifacial All-Weather Solar PV Modules

Quantity: 80 pcs
Rated power: 600W each
Total PV capacity: 48kWp
Technology: Bifacial monocrystalline

The system uses 80 high-power 600W Jinko bifacial solar modules, giving a combined solar array capacity of 48,000W (48kWp).

The bifacial technology allows the panels to utilize sunlight reaching both the front and rear surfaces where the installation conditions permit useful rear-side irradiance.

Advantages

• High 600W output per module.
• 48kWp total installed solar capacity.
• Bifacial technology can increase energy yield.
• Monocrystalline construction.
• Excellent power density.
• Suitable for commercial and industrial installations.
• Designed for reliable outdoor operation.
• Provides substantial daytime solar generation.

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5. 10mm² Solar PV Cable

Total: 1,000 meters

• 500 meters RED
• 500 meters BLACK
• Size: 10mm²

The 10mm² solar PV cable is used for connecting the solar PV strings to the appropriate protection and inverter equipment.

Advantages

• Suitable for high-current solar PV applications.
• Proper color identification for positive and negative connections.
• Designed for outdoor solar installations.
• Helps minimize voltage losses when correctly sized for the installation.
• Provides organized and reliable PV connections.

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6. Aluminum Long Mounting Rails

40 pcs × 4.8 meters

The system includes 40 pieces of 4.8-metre aluminum long rails for mounting the 80 solar panels.

The aluminum rails provide a strong, lightweight and corrosion-resistant mounting solution.

Advantages

• Corrosion resistant.
• Lightweight but strong.
• Suitable for rooftop or appropriate ground-mounted applications.
• Provides secure support for the PV modules.
• Long rail sections simplify panel installation.
• Designed to accommodate the required mounting accessories.

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7. Busbar

Quantity: 1 pc

A heavy-duty busbar is included for organized distribution and connection of the battery/DC electrical circuits.

Advantages

• Provides a centralized electrical connection point.
• Helps organize multiple battery circuits.
• Supports high-current DC distribution.
• Makes the battery system cleaner and easier to maintain.

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8. 125A DC Double-Pole Breakers

Quantity: 12 pcs

Rating: 125 Amperes

The DC breakers provide isolation and overcurrent protection for the relevant solar/battery circuits.

Advantages

• Protects electrical circuits against excessive current.
• Provides convenient DC isolation.
• Improves system safety.
• Makes maintenance and troubleshooting easier.
• Helps protect the PV and battery-side equipment.

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9. Three-Phase Automatic Changeover Switch

Quantity: 1 pc

The three-phase automatic changeover switch allows automatic transfer between the available power sources according to the final system configuration.

It is particularly useful for maintaining continuity of supply when the primary source becomes unavailable.

Advantages

• Automatic source transfer.
• Suitable for three-phase installations.
• Minimizes interruption to connected loads.
• Provides convenient integration between the solar/inverter system and utility supply.
• Enhances power continuity.

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10. 16mm² AC Cable

Quantity: 6 rolls

The 16mm² AC cable is provided for the appropriate AC power connections within the installation.

Advantages

• Suitable for high-current AC applications when correctly specified for the installation.
• Helps provide reliable power transmission.
• Durable and suitable for fixed electrical installations.
• Supports safe and organised AC wiring.

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11. 250A Battery Fuses

Quantity: 2 pcs

Rating: 250A

The two 250A battery fuses provide high-current protection for the battery system.

They are designed to protect the battery-side electrical circuits against potentially damaging overcurrent conditions.

Advantages

• Protects battery circuits.
• Provides high-current fault protection.
• Enhances overall battery-system safety.
• Helps protect expensive inverter and battery equipment.

The original Deye system document also specifies a 250A battery fuse as part of the battery protection equipment.

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12. 4×4 Metallic Trunking

The system includes 4×4 metallic trunking for routing and protecting electrical cables.

Advantages

• Provides mechanical protection for cables.
• Keeps wiring neat and organized.
• Improves the appearance of the installation.
• Helps protect cables from accidental damage.
• Makes future maintenance easier.

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13. Lightning Arrestors

Quantity: 2 pcs

Two lightning arrestors are included to provide protection against lightning-related electrical surges.

Advantages

• Helps protect the solar installation from lightning-induced surges.
• Provides additional protection for the PV and electrical equipment.
• Improves system safety and reliability.
• Particularly important for large outdoor solar installations.

The original system document also includes pure copper lightning protection as part of the installation.

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14. Earth Rods

Quantity: 2 pcs

Two earth rods are included as part of the system’s earthing and lightning-protection arrangement.

Proper earthing is essential for the safe operation of a large solar installation.

Advantages

• Provides a path for fault currents.
• Supports lightning protection.
• Helps protect people and equipment.
• Improves overall electrical safety.
• Supports proper grounding of the solar installation.

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15. 50mm² Battery Cable

Total: 100 meters

• 50 meters RED
• 50 meters BLACK
• Size: 50mm²

The 50mm² battery cables are used for the high-current connections between the battery system, busbar and associated DC equipment, according to the final installation design.

Advantages

• Suitable for high-current battery applications when properly sized for the actual current and cable run.
• Helps minimize voltage drop.
• Heavy-duty construction for large battery systems.
• Red and black insulation simplifies polarity identification.
• Provides reliable battery connections.

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16. Automatic Voltage Regulator

An Automatic Voltage Regulator (AVR) is included to help manage fluctuations in incoming electrical voltage and provide improved voltage stability for the connected electrical system.

Advantages

• Helps protect sensitive electrical equipment from voltage fluctuations.
• Improves voltage stability.
• Adds another layer of protection to the electrical installation.
• Particularly useful where utility voltage fluctuations are experienced.

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17. Complete System Protection and Safety

The system incorporates several protection components, including:

• 250A battery fuses.
• 125A DC breakers.
• Solar surge protection.
• Two lightning arrestors.
• Two earth rods.
• Automatic changeover.
• Automatic voltage regulation.
• Proper battery cabling.
• Solar PV cabling.
• Metallic cable trunking.
• Busbar distribution.

These components work together to create a safer, more organized and reliable commercial solar installation.

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Complete System Specifications

Key Advantages of the Complete System

☀️ 48kWp Solar Generation – 80 × 600W Jinko bifacial modules provide a substantial solar generation capacity for commercial applications.

⚡ 50kW Three-Phase Power – The Deye 50kW high-voltage hybrid inverter is designed for substantial three-phase electrical loads.

🔋 25.6kWh Lithium Storage – Five 5.12kWh Deye lithium modules provide approximately 25.6kWh of nominal energy storage.

💰 Reduced Grid Dependence – Solar energy can be prioritised for daytime loads while excess generation can be stored for later use.

🔄 Automatic Power Management – The hybrid system can intelligently coordinate solar, battery and grid energy.

🛡️ Comprehensive Protection – The installation includes DC breakers, battery fuses, lightning arrestors, earthing, surge protection, automatic voltage regulation and changeover equipment.

🌞 Bifacial Technology – The Jinko bifacial modules can provide additional energy yield where the installation has favourable rear-side light conditions.

🏢 Commercial-Grade Solution – The system is suitable for businesses, offices, institutions, hotels, farms, workshops, apartments and other facilities with significant three-phase electricity requirements.

🔧 Complete Installation Package – The inclusion of PV cables, battery cables, mounting rails, protection equipment, trunking, switching and earthing components provides a comprehensive installation package.

10-Year Warranty

The complete solar system is offered with a 10-year warranty, providing the customer with long-term confidence in the installation and system investment.

Important technical note: Although the system is commonly referred to as a **“50kWh Deye system,” the Deye inverter specified in the document is rated at 50kW, while the five batteries provide 25.6kWh nominal storage and the PV array is 48kWp. For a formal technical proposal, I recommend describing it as a 50kW Deye High-Voltage 3-Phase Solar System with 25.6kWh Battery Storage and 48kWp Solar PV Array.

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