Description
137 kVA / 125 kW HIGH-VOLTAGE THREE-PHASE SOLAR SYSTEM + 241.05kWh Lithium Backup
System Overview
This is a 137 kVA / 125 kW high-voltage three-phase hybrid solar power system designed for large residential, commercial, industrial and institutional applications requiring reliable, high-capacity solar generation, substantial battery backup and intelligent energy management.
The system is built around a 125 kW three-phase high-voltage hybrid inverter — Felicity Solar IVGM125KHP3G1, an advanced on-grid/off-grid hybrid inverter with IP65 protection and an integrated 250 kW MPPT solar charging capacity.
The installation combines 220 pieces of 635 W monocrystalline solar PV modules, providing a total installed solar generation capacity of:
220 × 635 W = 139,700 W = 139.7 kWp
The system is therefore appropriately positioned as a 137 kVA / 125 kW high-voltage solar system, with approximately 139.7 kWp of solar PV generation capacity and approximately 241.05 kWh of nominal lithium battery storage.
The battery bank consists of 15 pieces of 51.2 V, 314 Ah, 16.07 kWh Grade-A LiFePO₄ high-voltage-compatible battery modules, controlled by a dedicated master battery management/controller unit.
1. MAIN SYSTEM COMPONENTS
High-Voltage Hybrid Inverter
1 × Felicity Solar IVGM125KHP3G1
- Rated inverter capacity: 125 kW
- Apparent power rating: approximately 137 kVA
- Configuration: Three-phase
- Operation: On-grid / Off-grid hybrid
- Protection rating: IP65
- Built-in MPPT capacity: 250 kW
- MPPT configuration: 10 × 25 kW
- PV voltage range: 150–850 VDC per port
- PV input current: 45 A × 10
- PV input ports: 20 PV input ports
- Battery input voltage: 160–1,000 VDC
- Supports high-voltage lithium battery storage
- Supports single-phase input with three-phase output
- Wi-Fi monitoring module included
The inverter is the central energy-management component of the system. It manages energy from the solar PV array, battery bank and utility grid while supplying the connected three-phase loads.
2. 139.7 kWp MONOCRYSTALLINE SOLAR PV ARRAY
The system includes:
220 × 635 W monocrystalline solar PV modules
Total PV capacity:
220 × 635 W = 139,700 W
Total Solar PV Capacity: 139.7 kWp
The high-efficiency monocrystalline modules are designed to convert sunlight into DC electricity for use by the inverter.
During daylight hours, solar energy can:
- Supply the connected loads directly.
- Charge the battery bank using surplus solar energy.
- Export excess electricity to the grid where the installation and applicable utility arrangements permit.
- Reduce the amount of electricity drawn from the utility grid.
The large PV array provides sufficient solar generation capacity to support significant commercial and industrial daytime loads while also providing energy for battery charging.
3. 250 kW BUILT-IN MPPT SOLAR CHARGING SYSTEM
The IVGM125KHP3G1 inverter incorporates a substantial 250 kW MPPT solar charging capability, configured as:
10 × 25 kW MPPT channels
Each MPPT section is designed to independently optimise solar-panel operation, helping the system extract maximum available power from the PV array under varying sunlight and operating conditions.
MPPT Configuration
- 10 MPPT channels
- 25 kW per MPPT
- Total MPPT capacity: 250 kW
- PV operating voltage: 150–850 VDC per port
- Input current: 45 A × 10
- 20 PV input ports
The multiple MPPT architecture provides greater flexibility when designing PV strings and allows different PV array sections to be managed independently.
4. HIGH-VOLTAGE LITHIUM BATTERY STORAGE
The system incorporates a large lithium energy-storage bank consisting of:
1 × FLH48314UCG1 Master Battery Controller
and
15 × FLH48314UMG1 Slave Battery Modules
Each slave battery is:
- 51.2 V
- 314 Ah
- 16.07 kWh
- Grade-A LiFePO₄ lithium battery
- Designed for high-voltage energy-storage applications
Total Battery Capacity
15 × 16.07 kWh = 241.05 kWh
Total Nominal Battery Storage: 241.05 kWh
This provides the system with a substantial energy reserve for use when solar generation is low or unavailable.
The battery bank can therefore support the connected loads during:
- Night-time operation
- Cloudy periods
- Low-solar production periods
- Grid interruptions
- Peak-demand periods
- Scheduled energy shifting
Actual usable energy and backup duration will depend on the configured depth of discharge, inverter efficiency, operating conditions and battery-management settings.
5. MASTER BATTERY CONTROLLER
FLH48314UCG1 — Master Battery Controller
1 piece
The master battery controller coordinates the connected battery modules and provides the battery-management interface between the battery bank and the hybrid inverter.
It helps ensure coordinated operation of the individual battery modules and allows the complete battery bank to operate as an integrated high-voltage energy-storage system.
6. FLH48314UMG1 SLAVE BATTERY MODULES
15 × FLH48314UMG1
Each battery module provides:
16.07 kWh | 51.2 V | 314 Ah
The batteries use Grade-A LiFePO₄ lithium technology, which is well suited for frequent solar charging and discharging.
Combined battery bank:
15 × 16.07 kWh = 241.05 kWh
This substantial storage capacity allows the solar system to store excess daytime generation and use it later when solar production decreases.
7. BATTERY BASE AND COVER
1 × FLH48314UG1 Battery Base and Cover Set
The battery installation includes the dedicated FLH48314UG1 battery base and cover, providing the appropriate physical support and enclosure arrangement for the battery modules.
A properly installed battery structure helps maintain safe, organised and accessible battery installation.
8. SOLAR PV CABLE
The system includes:
1,600 meters of 10 mm² solar PV cable
- 800 meters RED
- 800 meters BLACK
The cables are used for the DC connections between the solar PV modules, string connections, protection equipment and inverter.
Correct PV cable sizing helps minimise voltage drop and power losses while providing reliable operation of the solar array.
9. ALUMINIUM SOLAR MOUNTING RAILS
The system includes:
110 × 4.8 m long aluminum rails
These rails are used as part of the solar PV mounting structure for securely mounting the 220 × 635 W monocrystalline solar modules.
The mounting structure is designed to provide:
- Secure panel mounting
- Mechanical stability
- Proper panel alignment
- Long-term outdoor durability
- Appropriate spacing between modules
- Resistance to normal environmental conditions
10. BATTERY PROTECTION
250 A Battery Fuse
A 250 A battery fuse is included to provide over-current protection for the battery circuit.
The battery protection system is an important safety component because it helps protect the battery cables and associated equipment against excessive current conditions.
11. THREE-PHASE AUTOMATIC CHANGEOVER SWITCH
The system includes a three-phase automatic changeover switch.
The automatic changeover provides intelligent switching between available power sources, helping maintain continuity of power to the connected loads.
Depending on the configured system architecture, the available sources may include:
- Solar inverter output
- Utility grid
- Backup supply
This is particularly important for commercial and industrial applications where uninterrupted power is a priority.
12. PV DISCONNECT
A dedicated PV disconnect is included to provide safe isolation of the solar PV array.
The disconnect allows technicians to isolate the solar DC supply during:
- Maintenance
- Inspection
- Troubleshooting
- Emergency shutdown
- System servicing
13. DC BREAKERS
The system includes:
6 × DC breakers
These provide additional protection and isolation for appropriate DC circuits within the solar installation.
The DC protection arrangement helps safeguard the PV and battery-side circuits against electrical faults and excessive current.
14. LIGHTNING PROTECTION
The system includes:
2 × Lightning Arrestors
The lightning protection system helps protect the solar installation and associated electrical equipment from transient voltage surges associated with lightning and electrical disturbances.
Because the PV array is normally installed outdoors and exposed to the environment, appropriate surge protection is an important part of a large solar installation.
15. EARTHING SYSTEM
The package includes:
2 × Pure Copper Earth Rods
The copper earth rods form part of the system’s earthing and electrical protection arrangement.
Proper earthing helps:
- Improve electrical safety
- Provide a path for fault currents
- Support surge-protection devices
- Reduce electrical shock risks
- Protect equipment during certain fault and surge conditions
The final earthing arrangement should be installed and tested in accordance with applicable Kenyan electrical standards and the requirements of the installation.
16. AUTOMATIC THREE-PHASE VOLTAGE REGULATOR
The system includes an automatic three-phase voltage regulator.
The voltage regulator helps maintain a stable electrical voltage for the connected system and provides additional protection against fluctuations in the utility supply.
This is particularly useful in areas where grid voltage can fluctuate significantly.
17. METALLIC TRUNKING
2 × 4 × 4 Metallic Trunking
The system includes metallic cable trunking for organized routing and protection of electrical cables.
The trunking helps provide:
- Neat cable management
- Mechanical protection
- Improved installation appearance
- Safer routing of electrical cables
- Easier maintenance and inspection
18. AC CABLE
The system includes:
4 rolls of 16.0 mm² AC single-core cable
The AC cable is used for appropriate AC connections within the system installation, subject to final engineering design, current requirements, cable-run length and applicable electrical regulations.
For a 125 kW three-phase system, final AC cable sizing should always be confirmed by the installing electrical engineer based on the actual voltage, installation method, ambient temperature, cable length, voltage drop and applicable protection requirements.
19. WI-FI MONITORING
The inverter comes with a Wi-Fi monitoring module.
This allows the system to support remote monitoring of important operating parameters, subject to network availability and the manufacturer’s monitoring platform.
Monitoring can provide visibility of parameters such as:
- Solar PV generation
- Battery status
- Grid status
- Load consumption
- Charging and discharging
- System alarms
- Inverter operating status
- Energy production
This makes it easier for the owner or technician to monitor system performance and identify potential issues.
20. ON-GRID AND OFF-GRID OPERATION
One of the major advantages of the IVGM125KHP3G1 is its hybrid architecture.
The system can be configured to operate with the utility grid while also providing battery-backed energy.
On-grid operation
During normal grid availability:
Solar PV → Loads
Excess solar:
Solar PV → Battery
and, where permitted/configured:
Solar PV → Grid
This reduces reliance on grid electricity and increases solar-energy utilisation.
Off-grid / backup operation
When the grid becomes unavailable:
Solar PV + Battery → Loads
The inverter can continue supplying appropriately configured loads from the solar PV array and battery bank.
This provides significant backup capability for critical commercial and industrial loads.
21. SINGLE-PHASE INPUT / THREE-PHASE OUTPUT
The inverter supports single-phase input with three-phase output, providing flexibility for different site electrical configurations.
For installations requiring three-phase loads, the system can supply balanced three-phase power through the inverter output, subject to the inverter’s technical operating limits and correct system configuration.
The final electrical design should verify the site’s incoming supply arrangement and three-phase load distribution before installation.
22. LARGE-SCALE ENERGY MANAGEMENT
The system’s combination of:
139.7 kWp Solar PV
125 kW Hybrid Inverter
241.05 kWh Lithium Battery Storage
makes it suitable for sophisticated commercial and industrial energy management.
The system can be used for:
Solar self-consumption
Solar energy is prioritized for the site’s loads, reducing grid consumption.
Peak-demand management
Stored energy can be used during periods of high electricity demand.
Time-of-use energy shifting
Solar energy generated during the day can be stored and used later.
Backup power
The battery bank can provide energy during grid interruptions.
Reduced generator dependence
The system can reduce the operating hours and fuel consumption of diesel generators.
23. ESTIMATED BATTERY BACKUP CAPABILITY
The battery bank has approximately:
241.05 kWh nominal storage
Theoretical backup duration before accounting for inverter losses and battery operating reserve can be illustrated as follows:
| Average Load | Approximate Theoretical Runtime |
|---|---|
| 10 kW | 24.1 hours |
| 20 kW | 12.1 hours |
| 30 kW | 8.0 hours |
| 50 kW | 4.8 hours |
| 75 kW | 3.2 hours |
| 100 kW | 2.4 hours |
| 125 kW | 1.9 hours |
These figures are theoretical calculations based on 241.05 kWh nominal capacity. Actual runtime will be lower depending on the usable depth of discharge, inverter efficiency, battery temperature, battery-management limits and the characteristics of the connected loads.
24. SYSTEM CAPACITY SUMMARY
Solar Generation
220 × 635 W = 139.7 kWp
Inverter
125 kW / approximately 137 kVA
Battery Storage
15 × 16.07 kWh = 241.05 kWh
PV Cable
1,600 m of 10 mm²
- 800 m Red
- 800 m Black
Mounting Rails
110 × 4.8 m aluminum rails
Battery Protection
250 A battery fuse
DC Protection
6 × DC breakers
Surge Protection
2 × lightning arrestors
Earthing
2 × pure copper earth rods
AC Protection/Control
Three-phase automatic changeover switch
Voltage Protection
Automatic three-phase voltage regulator
Cable Management
2 × 4 × 4 metallic trunking
AC Cable
4 rolls of 16.0 mm² single-core AC cable
Monitoring
Wi-Fi monitoring module
25. MAJOR ADVANTAGES OF THE SYSTEM
1. High Solar Generation Capacity
The 139.7 kWp solar array provides a substantial renewable energy source capable of supporting large daytime loads.
2. Powerful 125 kW Hybrid Inverter
The 125 kW inverter provides sufficient capacity for demanding commercial and industrial applications.
3. Large 241.05 kWh Battery Bank
The 15 lithium batteries provide substantial energy storage for nighttime operation, peak shaving and backup power.
4. High-Voltage Battery Architecture
High-voltage energy storage allows the system to efficiently integrate a large battery bank with the high-capacity inverter.
5. Advanced MPPT Technology
The integrated 250 kW MPPT system with multiple MPPT channels provides flexible PV configuration and efficient solar harvesting.
6. On-Grid and Off-Grid Capability
The system can work with the utility grid while also providing battery-backed operation when grid power is unavailable.
7. Three-Phase Power
The system is designed for large three-phase commercial and industrial loads.
8. Lithium Iron Phosphate Technology
The Grade-A LiFePO₄ battery technology provides long service life, high safety and excellent suitability for daily solar cycling.
9. Automatic Voltage Regulation
The three-phase automatic voltage regulator provides additional protection against unstable grid voltage.
10. Comprehensive Electrical Protection
The package includes DC breakers, PV disconnect, battery fuse, lightning arrestors, earthing rods and automatic changeover equipment.
11. Remote Monitoring
The Wi-Fi module enables convenient system monitoring and performance management.
12. Reduced Electricity Costs
The system can significantly reduce dependence on grid electricity by maximising solar self-consumption.
13. Reduced Generator Usage
Battery-backed solar power can reduce generator running hours, fuel consumption, noise and maintenance costs.
14. Scalable Energy Management
The system is designed around a high-capacity inverter and modular lithium battery architecture, making it suitable for demanding energy-storage applications.
26. WARRANTY AND INSTALLATION
The complete system package includes:
FREE PROFESSIONAL INSTALLATION
Installation is included as part of the system package, subject to site assessment and the agreed installation scope.
INVERTER WARRANTY
5-year warranty on the hybrid inverter
BATTERY WARRANTY
10-year warranty on the lithium battery system
The warranty is subject to the manufacturer’s warranty terms, installation requirements, operating conditions and recommended maintenance procedures.
27. IDEAL APPLICATIONS
This high-capacity solar system is particularly suitable for:
- Large residential properties
- Commercial buildings
- Office complexes
- Shopping centers
- Hotels and lodges
- Hospitals and medical facilities
- Schools and institutions
- Manufacturing facilities
- Warehouses
- Agricultural processing facilities
- Large farms
- Borehole and water-pumping installations
- Industrial facilities
- Telecom installations
- Data and technology facilities
- Businesses requiring reliable three-phase backup power
COMPLETE SYSTEM PACKAGE
1 × 125 kW / 137 kVA Felicity Solar IVGM125KHP3G1 three-phase high-voltage hybrid inverter
220 × 635 W monocrystalline solar PV modules — 139.7 kWp
1 × FLH48314UCG1 Master Battery Controller
15 × FLH48314UMG1 51.2 V 314 Ah 16.07 kWh Grade-A LiFePO₄ lithium batteries
1 × FLH48314UG1 battery base and cover set
1,600 m × 10 mm² solar PV cable
- 800 m Red
- 800 m Black
110 × 4.8 m aluminium long rails
1 × 250 A battery fuse
1 × Three-phase automatic changeover switch
1 × PV disconnect
6 × DC breakers
2 × lightning arrestors
2 × pure copper earth rods
1 × automatic three-phase voltage regulator
2 × 4 × 4 metallic trunking
4 rolls × 16.0 mm² AC single-core cable
1 × Wi-Fi monitoring module
FREE INSTALLATION
5-YEAR INVERTER WARRANTY
10-YEAR BATTERY WARRANTY
SYSTEM PERFORMANCE AT A GLANCE
139.7 kWp Solar PV
125 kW / 137 kVA Hybrid Inverter
241.05 kWh LiFePO₄ Battery Storage
250 kW Integrated MPPT Capacity
Three-Phase Output
On-Grid + Off-Grid Operation
High-Voltage Battery System
Wi-Fi Monitoring
Free Installation
5-Year Inverter Warranty
10-Year Battery Warranty
This combination provides a high-capacity, intelligent and reliable renewable-energy solution capable of delivering substantial daytime solar generation, large-scale battery storage, three-phase power and dependable backup energy for demanding commercial and industrial applications.
📞📞CALL US ON:0799316769/0708549953
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