4.2kVA Off-Grid Hybrid Solar System with Grid Assist, 9.6kWh LFP Battery & 3kW Solar Panels

Product Overview

This complete 4.2kVA off-grid hybrid solar system with Grid Assist is designed for apartments, villas and independent houses that need dependable battery backup during power cuts and want to use solar energy during the daytime without exporting electricity to the grid.

The system combines:

• A 4.2kVA hybrid inverter
• A 48V 200Ah LiFePO₄ battery
• Six 500Wp solar panels
• Electrical protection and installation accessories

The inverter can use solar, battery and grid power depending on the available solar generation, battery condition and connected load.

This system is designed for self-consumption and power backup. It does not require net metering because surplus solar power is not exported to the grid.

System Configuration

• Hybrid Inverter: 4.2kVA
• Inverter Type: Off-grid hybrid inverter with Grid Assist
• Battery Chemistry: Lithium Iron Phosphate — LiFePO₄
• Battery Capacity: 48V 200Ah
• Battery Energy: 9.6kWh
• Solar Panels: 6 × 500Wp
• Total Solar Capacity: 3,000Wp or 3kW
• Net Metering: Not required
• Grid Export: Not supported

How the System Works

During Daytime

Solar power is first used to operate the connected home loads.

When solar generation is lower than the connected load, the inverter can use solar and grid power together through Grid Assist operation.

When sufficient solar energy is available, the system can:

• Run the connected loads
• Charge the LiFePO₄ battery
• Reduce electricity drawn from the grid

When the Battery Is Low

When the battery charge level becomes low but solar power is available, the inverter can continue operating in Solar + Grid sharing mode.

The inverter can support the connected loads while also charging the battery, depending on available solar power and system settings.

During a Power Cut

The 9.6kWh LiFePO₄ battery supplies backup power to the connected essential loads.

When sunlight is available, the solar panels can continue supporting the loads and charging the battery.

No Net Metering or Grid Export Required

This system is suitable for customers who want to use solar energy within their property but do not want to sell surplus power to the electricity grid.

• No net-metering approval is required
• Solar energy is used for home loads and battery charging
• Surplus power is not exported to the grid
• Grid power is used only when solar and battery power are insufficient

Key Benefits

• Battery backup during power cuts
• Solar savings during daytime
• Solar + Grid load-sharing capability
• No net metering required
• No export to the electricity grid
• Long-life LiFePO₄ battery
• Lower maintenance than lead-acid batteries
• Solar charging during grid availability or power cuts
• Suitable for apartments and independent houses
• Useful where net metering is unavailable or not preferred
• Integrated solar, battery and grid-assisted operation

What All Comes with This System

Main Equipment

• 1 × 4.2kVA H Series Hybrid Inverter
• 1 × 48V 200Ah LiFePO₄ Battery Pack
• 6 × 500Wp Solar Panels
• Total Solar Capacity: 3kW
• Total Battery Storage Capacity: 9.6kWh

Electrical Protection and Accessories

• ACDB
• DCDB
• Lightning Arrestor
• Double Pole Double Throw Changeover Switch
• Earthing Rod

Cables

• Red and Black Solar DC Cable
• AC Cable
• Earthing Cable

Important Cable Pricing Note

Cable prices are not included in the MRP.

The required cable length depends on the distance between:

• Solar panels
• Hybrid inverter
• Battery pack
• Distribution board
• Earthing location

The final cable cost will therefore be calculated after the site inspection and charged separately at actuals.

Suitable Applications

• Apartments requiring backup for selected loads
• Independent houses
• Villas
• Homes with frequent electricity cuts
• Locations where net metering is unavailable
• Customers who do not want to export solar power
• Homes requiring both solar savings and battery backup
• Existing homes upgrading from a conventional inverter system

Important Note

This is not a conventional on-grid solar system.

It is an off-grid hybrid solar system with Grid Assist and battery storage, designed for:

• Self-consumption of solar energy
• Battery backup during power cuts
• Solar + Grid sharing
• Battery charging
• Zero export to the electricity grid