Description
50kW DEYE HIGH-VOLTAGE 3-PHASE SOLAR SYSTEM + 50Kwh Lithium BACKUP
50kWh Deye Lithium Battery Backup + 48kWp Jinko Bifacial Solar PV System
1. System Overview
This is a 50kW Deye High-Voltage 3-Phase Hybrid Solar System designed for reliable power supply, energy cost reduction and backup power for commercial and large residential applications.
The system combines a 50kW Deye 3-phase high-voltage hybrid inverter, a 50kWh Deye high-voltage lithium battery bank, and 80 pieces of 600W Jinko bifacial all-weather solar PV modules, providing a total installed solar generation capacity of 48kWp.
The expanded 50kWh battery bank provides substantially more energy storage, allowing the system to store excess solar energy generated during the day and utilize it during periods of low solar production, at night or during grid outages.
2. Main System Components
A. Deye 50kW High-Voltage 3-Phase Hybrid Inverter
Quantity: 1 pc
Model: Deye SUN-50K-SG01HP3-EU-BM4
System type: High-voltage, 3-phase hybrid solar inverter
Rated power: 50kW
The Deye 50kW hybrid inverter is the central power-management unit of the system. It manages energy flowing between the solar PV array, battery bank, utility/grid and connected loads.
It allows solar energy to be used directly by the loads while directing surplus energy into the battery bank for later use.
Key advantages
- High 50kW power output suitable for commercial applications
- Three-phase operation for balanced commercial loads
- High-voltage battery compatibility
- Efficient solar energy conversion
- Intelligent battery charging and discharging
- Automatic energy management
- Supports backup operation during grid outages
- Reduces dependence on grid electricity
- Suitable for demanding commercial and industrial applications
3. 50kWh Deye High-Voltage Lithium Battery Bank
Battery configuration
Quantity: 10 pcs
Battery capacity: 5kWh each
Total nominal storage: 50kWh
Nominal voltage: 51.2V per battery module
Battery capacity: 100Ah per module
Battery chemistry: LiFePO₄
Battery type: Deye high-voltage lithium battery
Battery Management Unit: 1 pc
The system is equipped with 10 Deye high-voltage lithium battery modules, each with approximately 5kWh nominal energy storage, giving a combined nominal battery capacity of:
10 × 5kWh = 50kWh
The batteries are integrated into a high-voltage battery cluster and managed through one Deye Battery Management Unit (BMU).
The BMU coordinates communication and monitoring between the battery modules and the inverter, helping ensure safe and controlled charging, discharging and battery operation.
Advantages of the 50kWh battery bank
- Large energy storage capacity
- Provides extended backup during grid outages
- Stores excess daytime solar energy for use at night
- Reduces reliance on the utility grid
- LiFePO₄ chemistry provides excellent cycle life and thermal stability
- Intelligent battery monitoring and protection
- High-voltage architecture improves system efficiency
- Scalable battery architecture
- Suitable for commercial and high-energy applications
The 50kWh battery bank provides significantly greater backup capability than the previous 25kWh-class configuration, making the system better suited for loads that require longer backup periods.
4. Deye Battery Management Unit (BMU)
Quantity: 1 pc
The BMU is the control and communication interface for the high-voltage battery cluster.
It manages communication between the individual Deye lithium battery modules and the hybrid inverter.
Functions include:
- Battery monitoring
- Battery communication
- State-of-charge monitoring
- Battery protection coordination
- Cell and module management
- Communication with the inverter
- Safe charging and discharging management
Using one BMU allows the 10 battery modules to operate as a coordinated high-voltage battery system.
5. Jinko 600W Bifacial All-Weather Solar PV Modules
Quantity: 80 pcs
Rated power per panel: 600W
Total solar PV capacity: 48kWp
The system uses 80 pieces of 600W Jinko bifacial monocrystalline solar PV modules.
Total PV capacity
80 × 600W = 48,000W = 48kWp
The bifacial technology allows the modules to generate electricity from sunlight reaching the front and reflected light reaching the rear side of the modules, depending on installation conditions.
Advantages
- High 600W module output
- High total system generation capacity
- Bifacial technology
- Monocrystalline PV technology
- Suitable for large commercial installations
- Better utilization of available installation space
- Designed for long-term outdoor operation
- High energy production potential
The 48kWp solar array supplies daytime loads while also providing energy for charging the 50kWh battery bank when excess solar energy is available.
6. Solar PV Cabling
Total: 1,000 meters of 10mm² solar PV cable
Configuration:
- 500 meters RED
- 500 meters BLACK
The solar cables are used to connect the PV modules to the appropriate protection and inverter/MPPT circuits.
The correct cable sizing helps minimize voltage drop and ensures safe and efficient transfer of solar energy.
7. Aluminum Solar Mounting Rails
Quantity: 40 pcs
Length: 4.8 meters each
The system includes 40 pieces of 4.8m aluminum long rails for securely mounting the 80 solar panels.
The aluminum mounting structure provides a durable and corrosion-resistant solution for rooftop or appropriate ground-mounted PV installations.
8. 125A DC Circuit Breakers
Quantity: 12 pcs
Rating: 125A DC
The DC breakers provide isolation and protection for the solar PV circuits.
They help protect the system against electrical faults and provide convenient isolation during maintenance and servicing.
9. Three-Phase Automatic Changeover Switch
Quantity: 1 pc
The automatic changeover switch provides automatic switching between available power sources, such as the utility/grid and the backup power system.
This allows connected loads to continue receiving power when the primary source becomes unavailable, subject to the system operating configuration.
Benefits
- Automatic source switching
- Reduced downtime
- Improved power continuity
- Suitable for three-phase commercial installations
- Provides convenient source isolation
10. 16mm² AC Cable
Quantity: 6 rolls
The 16mm² AC cable is used for appropriate AC power connections within the installation, depending on the final site design, cable runs and electrical requirements.
Correct cable sizing helps ensure safe current carrying capacity and reduces losses.
11. 250A Battery Fuses
Quantity: 2 pcs
Rating: 250A
The 250A battery fuses provide high-current protection for the battery-side electrical circuits.
They help protect the battery system, cables and associated equipment against excessive current and short-circuit conditions.
12. 50mm² Battery Cable
Total: 100 meters
Configuration:
- 50 meters RED
- 50 meters BLACK
The 50mm² battery cables are used for high-current battery connections between the battery system and associated power equipment.
The large conductor size helps accommodate high current flow while reducing voltage drop and electrical losses.
13. Busbar
Quantity: 1 pc
The busbar provides a centralized connection point for appropriate electrical circuits within the system.
It helps organize high-current connections and provides a neat and reliable distribution arrangement.
14. Metallic Trunking
Specification: 4 × 4 metallic trunking
The metallic trunking is used to route and protect electrical cables around the installation.
It provides:
- Mechanical cable protection
- Organized cable routing
- Improved installation appearance
- Additional protection against accidental cable damage
15. Lightning Arrestors
Quantity: 2 pcs
Lightning arrestors provide protection against electrical surges and transient overvoltage caused by lightning and other electrical disturbances.
They are an important component for solar installations, particularly where equipment is exposed to outdoor electrical conditions.
16. Earth Rods
Quantity: 2 pcs
The earth rods form part of the system’s earthing and electrical protection arrangement.
Proper earthing helps provide a safe path for fault and surge currents and contributes to the overall safety of the solar installation.
17. Automatic Voltage Regulator
Quantity: 1 pc
The automatic voltage regulator helps stabilize incoming voltage and protect connected equipment against undesirable voltage fluctuations.
This provides an additional layer of protection for sensitive electrical and electronic equipment.
18. Complete System Configuration
| Component | Specification |
|---|---|
| Hybrid Inverter | 1 × Deye 50kW High-Voltage 3-Phase |
| Inverter Model | SUN-50K-SG01HP3-EU-BM4 |
| Battery | 10 × Deye 5kWh High-Voltage Lithium |
| Total Battery Storage | 50kWh nominal |
| Battery Voltage | 51.2V per module |
| Battery Capacity | 100Ah per module |
| Battery Chemistry | LiFePO₄ |
| BMU | 1 × Deye Battery Management Unit |
| Solar Panels | 80 × 600W Jinko Bifacial |
| Total PV Capacity | 48kWp |
| Solar PV Cable | 1,000m of 10mm² |
| PV Cable | 500m Red + 500m Black |
| Aluminium Rails | 40 × 4.8m |
| DC Breakers | 12 × 125A |
| Changeover | 1 × Three-Phase Automatic |
| AC Cable | 6 rolls × 16mm² |
| Battery Fuse | 2 × 250A |
| Battery Cable | 100m × 50mm² |
| Battery Cable | 50m Red + 50m Black |
| Busbar | 1 pc |
| Metallic Trunking | 4 × 4 |
| Lightning Arrestors | 2 pcs |
| Earth Rods | 2 pcs |
| Automatic Voltage Regulator | 1 pc |
| Warranty | 10 Years |
19. Key Advantages of the Complete System
1. Large 50kWh Energy Storage
The upgraded battery bank provides 50kWh of nominal energy storage, allowing substantially more solar energy to be stored for evening, night-time and backup use.
2. High Solar Generation Capacity
With 80 × 600W panels, the system has a substantial 48kWp solar PV array, providing strong daytime energy production.
3. Powerful 50kW Three-Phase Output
The 50kW Deye hybrid inverter is suitable for commercial installations with significant three-phase electrical loads.
4. Reduced Electricity Costs
Solar energy can supply daytime loads directly while excess generation can be stored in the battery bank, reducing the amount of electricity required from the utility grid.
5. Extended Backup Capability
The larger 50kWh battery bank provides considerably more stored energy for use during grid outages or periods when solar production is unavailable.
6. Efficient Energy Management
The hybrid inverter intelligently coordinates solar generation, battery storage, grid supply and connected loads to optimize energy utilization.
7. Bifacial Solar Technology
The Jinko bifacial modules can utilize suitable reflected light from the rear side of the panels, potentially increasing energy yield where the installation environment supports bifacial gain.
8. Enhanced Electrical Protection
The system incorporates DC breakers, battery fuses, lightning arrestors, earthing, voltage regulation and other protective components to enhance system safety and equipment protection.
9. Commercial-Grade System
The combination of a 50kW three-phase inverter, 48kWp solar array and 50kWh battery bank makes this a strong solution for commercial premises, offices, businesses, institutions, farms and other facilities with substantial energy requirements.
10. Long-Term Investment
The system is designed to provide long-term energy savings, greater energy independence and improved resilience against power interruptions.
11. Professional Installation and Commissioning
The system includes the necessary major electrical, mounting, protection and cabling components required for a professionally installed solar energy solution.
12. 10-Year Warranty
The system is offered with a 10-year warranty, providing additional confidence in the long-term investment and installation.
Recommended Technical System Description
50kW Deye High-Voltage 3-Phase Hybrid Solar System with 50kWh Deye Lithium Battery Storage and 48kWp Jinko Bifacial Solar PV Array, comprising 10 × 5kWh Deye high-voltage lithium battery modules, 1 × Deye BMU and 80 × 600W Jinko bifacial solar PV modules, complete with protection, cabling, mounting structure, automatic changeover, voltage regulation, installation and commissioning.
Warranty: 10 Years.
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