137kVA / 125kW Felicity IVGM125KHP3G1 High-Voltage Three-Phase Hybrid Inverter System with 241kWh Battery Storage

The 137kVA / 125kW Felicity High-Voltage Hybrid System is a large-scale commercial energy solution built around the IVGM125KHP3G1 125kW three-phase hybrid inverter and a substantial 241kWh-class high-voltage battery set.

The IVGM125KHP3G1 combines on/off-grid hybrid operation, IP65 protection and an exceptional built-in 250kW MPPT capacity, divided into 10 × 25kW MPPT sections. With 20 PV input ports, the inverter is designed to accommodate very large solar arrays for commercial, institutional and high-energy-demand installations.

Its specified solar configuration supports up to 320 × 550W–700W panels, arranged as 16×2 across 10 MPPT sections. This corresponds to an array nameplate range of approximately 176kWp to 224kWp, depending on the selected panel wattage.

The battery package consists of 15 × FLH48314UMG1 Grade A 48V 314Ah 16.07kWh slave battery modules, controlled through 1 × FLH48314UCG1 master battery controller, together with an FLH48314UG1 battery base and cover set. The inverter accepts a wide 160–1000VDC high-voltage battery input.

Technical Specifications – Inverter

241kWh Battery Set

Complete System Configuration

• 1 × 125kW Felicity IVGM125KHP3G1 Three-Phase High-Voltage Hybrid Inverter
• 1 × FLH48314UCG1 Master Battery Controller
• 15 × FLH48314UMG1 48V 314Ah 16.07kWh Grade A Slave Batteries
• 1 × FLH48314UG1 Battery Base & Cover Set
• 241kWh stated battery storage
• 1 × WiFi Module
• Supports specified configuration of up to 320 × 550W–700W solar panels

Key Features

• Massive 137kVA / 125kW system capacity
• 125kW three-phase hybrid inverter
• High-voltage battery architecture
• On-grid and off-grid operation
• Supports single-phase input and three-phase output
• IP65-rated inverter enclosure
• Built-in 250kW MPPT
• 10 × 25kW MPPT architecture
• 20 PV input ports
• 150–850VDC PV input range per port
• 45A × 10 specified PV input current
• 160–1000VDC high-voltage battery input
• 241kWh-class battery storage
• 15 × 16.07kWh Grade A battery modules
• Dedicated FLH48314UCG1 master battery controller
• Dedicated FLH48314UG1 battery base and cover
• Supports specified configuration of up to 320 solar panels
• WiFi module included

125kW Three-Phase Power Advantage

The 125kW inverter rating places the IVGM125KHP3G1 in an entirely different class from standard residential and small-commercial hybrid inverters.

It is specifically positioned for high-energy-demand sites where solar generation and battery storage need to support substantial three-phase electrical infrastructure.

Potential applications include professionally designed:

🏭 Industrial & Production Facilities

🏢 Large Commercial Buildings

🏨 Hotels & Hospitality Facilities

🏫 Schools & Institutions

🏥 Healthcare Facilities

🏬 Shopping & Retail Facilities

🧊 Commercial Refrigeration

💻 Large Office & IT Infrastructure

Actual load compatibility must be determined through a detailed electrical and energy assessment.

250kW Built-In MPPT Advantage

One of the strongest specifications of the IVGM125KHP3G1 is its enormous:

250kW built-in MPPT capacity

configured as:

25kW × 10 = 250kW

This provides substantial solar-array capacity relative to the inverter’s 125kW rated output, giving the system a strong PV-generation platform for commercial installations with significant daytime consumption and battery-charging requirements.

The inverter’s 125kW output and 250kW MPPT input ratings represent different electrical functions and should not be treated as interchangeable power ratings.

10 MPPT Sections & 20 PV Input Ports

The system provides:

10 MPPT sections

with:

20 PV input ports

The specified panel arrangement is:

16 × 2 × 10

This means:

16 panels per string

2 strings per MPPT

10 MPPT sections

Therefore:

16 × 2 × 10 = 320 solar panels

This multi-MPPT configuration gives a large commercial PV system considerably more flexibility in distributing the solar array across the available inputs.

Up to 320 × 550W–700W Solar Panels

The supplied configuration supports up to 320 solar panels in the stated arrangement.

This gives the system an exceptionally substantial PV array compared with smaller hybrid installations.

Even though the panel count is specified, every string must still be verified using the exact electrical characteristics of the selected solar module.

150–850VDC PV Input Advantage

The specified PV input-voltage range is:

150–850VDC per port

For the proposed 16-panel strings, installers must verify:

• Solar-panel Voc
• Solar-panel Vmp
• Isc
• Operating current
• Temperature coefficient
• Cold-condition maximum string Voc
• Minimum operating string voltage
• Permitted input current

This is particularly important in a 320-panel commercial array because a string-design error can affect a significant portion of the installation.

45A × 10 PV Input Architecture

The supplied PV input-current specification is:

45A × 10

This should be considered together with the inverter’s:

10 MPPT sections

and

20 PV input ports

when designing the PV array.

The current characteristics of the selected modules and parallel strings must remain within the manufacturer’s permitted limits.

241kWh High-Voltage Battery Storage

The system includes a substantial 241kWh-class battery set, making it suitable for projects where battery storage is a major part of the energy strategy rather than a small emergency backup.

The package includes:

15 × FLH48314UMG1 Slave Battery Modules

Each module is specified as:

🔋 48V

⚡ 314Ah

🔋 16.07kWh

⭐ Grade A

The system also includes the required FLH48314UCG1 master battery controller.

Battery Capacity Calculation

Based on the supplied individual module rating:

15 × 16.07kWh = 241.05kWh

This corresponds closely to the supplied 241kWh battery-set rating.

The small difference is simply the result of presenting the total as a rounded whole-kWh system figure.

Therefore, the supplied module configuration supports the stated 241kWh-class nominal battery capacity.

FLH48314UCG1 Master Battery Controller

The package includes:

1 × FLH48314UCG1 Master Battery Controller

This controller forms a key part of the high-voltage battery architecture, coordinating the modular battery set for integration with the inverter.

Its inclusion is particularly important because the inverter’s battery input operates across:

160–1000VDC

The battery modules should therefore be installed as part of the specified Felicity high-voltage system rather than treated as independent standalone 48V batteries.

FLH48314UMG1 Grade A Battery Modules

The battery bank uses 15 FLH48314UMG1 modules.

Each provides:

16.07kWh | 48V | 314Ah

With 15 modules installed, the system provides approximately:

241.05kWh nominal energy

This modular architecture gives the commercial system substantial stored-energy capacity while maintaining a structured battery arrangement.

Battery Base & Cover

The package includes:

1 × FLH48314UG1 Battery Base and Cover Set

This forms part of the physical installation structure for the specified modular high-voltage battery bank.

Battery stacking, positioning and interconnection should follow Felicity’s approved installation arrangement for the FLH48314 system.

160–1000VDC High-Voltage Battery Architecture

The IVGM125KHP3G1 accepts:

160–1000VDC battery input

This wide high-voltage range clearly distinguishes the system from conventional 48V hybrid inverter installations.

Although each individual slave module is specified at 48V, the complete battery system is configured through the master controller to form the required high-voltage architecture.

A conventional standalone 48V/51.2V battery must therefore not be assumed to be directly compatible with the inverter.

Single-Phase Input, Three-Phase Output Support

A particularly distinctive supplied feature of the IVGM125KHP3G1 is support for:

Single-Phase Input → Three-Phase Output

This adds flexibility in situations where the available AC input arrangement differs from the three-phase load-side requirement.

Because this is a high-power electrical system, the exact operating conditions, permissible input capacity, load limitations and wiring requirements for this mode should be followed strictly according to Felicity’s technical documentation.

On/Off-Grid Hybrid Operation

The IVGM125KHP3G1 is specified for on/off-grid hybrid operation, allowing a properly designed system to integrate:

☀️ Large Solar PV Array

🔋 241kWh High-Voltage Battery Storage

⚡ Utility Grid

🏭 Three-Phase Loads

This architecture is particularly useful for commercial customers looking to combine solar self-consumption, battery storage and grid-supported operation.

IP65 Protection Advantage

The inverter is specified with an IP65-rated enclosure.

This indicates:

6 – Dust-tight

5 – Protected against water jets

under the applicable IP test conditions.

IP65 does not mean the inverter can be submerged or installed without considering ventilation, ambient temperature, direct environmental exposure and Felicity’s installation requirements.

WiFi Monitoring

A WiFi module is included with the inverter.

When correctly commissioned with Felicity’s supported monitoring platform, this provides wireless access to available system monitoring information.

The exact monitoring parameters and remote-control functionality depend on the applicable WiFi module, inverter firmware and Felicity platform.

125kW Power + 241kWh Storage

The two headline capacities describe different parts of the system:

⚡ 125kW → Inverter power capability

🔋 241kWh → Nominal stored battery energy

The 241kWh battery capacity should not be interpreted as a guaranteed runtime at any specific load.

Actual backup duration depends on:

Usable Battery Energy ÷ Actual Load

while also accounting for inverter efficiency, battery operating limits, reserve settings and other system losses.

This is particularly important for commercial projects where the difference between peak power demand and average energy consumption can be substantial.

Applications / Use Cases

🏭 Industrial Facilities – high-capacity solar and battery infrastructure for professionally assessed three-phase loads.

🏢 Large Commercial Buildings – substantial PV generation and energy storage for business operations.

🏨 Hotels & Hospitality – suitable for large facilities requiring significant solar generation and battery capacity.

🏫 Schools & Institutions – high-capacity energy infrastructure for larger institutional sites.

🏥 Healthcare Facilities – suitable as part of professionally engineered energy systems for selected loads.

🏬 Retail & Commercial Centres – substantial solar self-consumption and battery-storage applications.

☀️ Large PV Projects – supports the specified configuration of up to 320 × 550W–700W solar panels.

🔋 Commercial Energy Storage – approximately 241kWh nominal battery capacity with high-voltage architecture.

System Design Considerations

A system of this capacity requires detailed engineering around:

• Three-phase site load profile
• Peak and average demand
• Phase distribution
• Motor starting requirements
• Critical and non-critical loads
• Required backup duration
• 241kWh battery operating limits
• High-voltage battery configuration
• Battery communication
• PV string Voc and Vmp
• Temperature-corrected PV voltage
• PV input current
• 20 PV input ports
• 10 MPPT sections
• DC protection and isolation
• High-voltage battery protection
• AC protection
• Earthing
• Grid-interconnection requirements
• Single-phase input / three-phase output operating requirements

Usage & Installation Notes

• Use the 15 FLH48314UMG1 modules only within Felicity’s approved high-voltage configuration
• Install the FLH48314UCG1 master controller according to manufacturer requirements
• Install the FLH48314UG1 base and cover according to the approved battery arrangement
• Do not connect conventional standalone 48V batteries directly to the 160–1000VDC inverter input
• Verify all 20 PV inputs before commissioning
• Check every 16-panel string against actual module Voc, Vmp and current
• Calculate temperature-corrected maximum PV string voltage
• Observe the 150–850VDC PV input limits
• Observe the specified 45A × 10 current limits
• Install appropriate high-voltage DC isolation and protection
• Install correctly rated three-phase AC protection
• Ensure proper system earthing
• Correctly balance three-phase loads
• Follow applicable grid-interconnection requirements
• Confirm the requirements for single-phase-input/three-phase-output operation
• Installation and commissioning should be performed by appropriately qualified high-voltage solar personnel

Mini FAQ

What is the system capacity?
The Felicity system is specified at 137kVA / 125kW.

What is the inverter model?
The inverter is the Felicity IVGM125KHP3G1.

Is it a high-voltage inverter?
Yes. It accepts a specified 160–1000VDC battery input.

How much battery storage is included?
The system includes approximately 241kWh nominal battery storage.

How is the 241kWh achieved?
It uses 15 × 16.07kWh FLH48314UMG1 battery modules, mathematically providing approximately 241.05kWh.

What is the MPPT capacity?
The inverter has a specified 250kW built-in MPPT capacity, configured as 25kW × 10.

How many PV input ports does it have?
It provides 20 PV input ports.

What is the PV input-voltage range?
The supplied specification is 150–850VDC per port.

How many solar panels can be connected?
The supplied configuration supports up to 320 × 550W–700W panels, arranged as 16 × 2 × 10, subject to final electrical string verification.

What solar-array capacity does 320 panels provide?
Depending on panel size, approximately 176kWp with 550W panels to 224kWp with 700W panels.

Can it accept single-phase input and provide three-phase output?
Yes. This is a specifically supplied feature of the IVGM125KHP3G1. The manufacturer’s permitted operating conditions for this mode must be followed.

Does it include WiFi?
Yes. A WiFi module is included.

Why Buy from Macire

• Exact Felicity IVGM125KHP3G1 high-voltage platform
• Massive 137kVA / 125kW system capacity
• Approximately 241kWh battery storage
• 15 × 16.07kWh Grade A battery modules
• Dedicated FLH48314UCG1 master controller
• FLH48314UG1 battery base & cover
• Exceptional 250kW built-in MPPT
• 10 × 25kW MPPT configuration
• 20 PV input ports
• 150–850VDC PV input range
• 160–1000VDC high-voltage battery architecture
• Specified support for up to 320 solar panels
• On/off-grid hybrid operation
• Single-phase input / three-phase output support
• IP65-rated inverter
• WiFi module included
• Professional commercial solar and energy-storage system support

Visit us: Kenafric Business Park, Ruaraka, Nairobi
WhatsApp: 0750 00 66 00
Calls: 0713 520 969 / 0718 762 530
Website: Macire