Low Voltage Hybrid Inverter for Single-Phase & Three-Phase Systems

A low voltage hybrid inverter is a power conversion and energy management device that brings solar PV, battery storage, grid supply and connected loads together within one integrated energy system. It converts DC electricity generated by solar panels into AC power for connected loads while managing battery charging and discharging according to the system’s operating mode.

Unlike a conventional solar inverter, a hybrid inverter can coordinate solar generation, battery charging and discharging, grid power and connected loads. This allows available solar energy to be used directly, stored for later use or supplemented by grid power when required.

The Electres Low Voltage Hybrid Inverter range includes Single-Phase models from 3/3.6 kW to 8 kW and Three-Phase models from 5 kW to 20 kW, providing options for different electrical supply types, connected loads, solar PV capacities and battery storage configurations.

How Does a Low Voltage Hybrid Inverter Work?

A hybrid inverter manages the flow of electricity between the solar PV system, battery, grid and connected loads.

During the day, solar generation can supply connected loads directly. When solar generation exceeds the immediate load requirement, available energy can be directed to the battery for storage. When solar generation is insufficient, the system can use stored battery energy or grid power according to its configured operating mode.

This allows solar generation, battery storage and grid supply to work together as part of a coordinated energy system.

Key Features of Electres Low Voltage Hybrid Inverters

The Electres range combines power conversion, battery management, solar PV control, protection and communication functions within one inverter platform.

Key capabilities include:

• Single-Phase and Three-Phase options for different electrical supply requirements
• 40–60 V battery voltage range
• Compatible lead-acid and lithium-ion battery support
• BMS-adaptive charging for compatible lithium-ion systems
• Up to 97.6% maximum efficiency
• MPPT control for solar PV management
• IP65-rated protection
• RS485, RS232 and CAN communication interfaces
• Optional Wi-Fi, Bluetooth, GPRS, 4G and LAN monitoring

What Battery Voltage and MPPT Range Does It Support?

The Electres Low Voltage Hybrid Inverter ranges support a 40–60 V battery voltage range and compatible lead-acid and lithium-ion battery systems. For compatible lithium-ion configurations, the charging strategy adapts to the connected Battery Management System (BMS).

Solar PV input and MPPT specifications vary by phase:

• Single-Phase: One or two MPPTs with a 150–425 V MPPT voltage range
• Three-Phase: Two MPPTs with a 200–650 V MPPT voltage range

The maximum PV input power also varies by model, so the inverter should be selected according to the planned solar PV capacity and system requirements.

What Efficiency, Protection and Monitoring Features Does It Offer?

The Electres Low Voltage Hybrid Inverter range achieves up to 97.6% maximum efficiency for power conversion. Single-Phase models support up to 500 V maximum PV input voltage, while Three-Phase models support up to 800 V.

The inverter features an IP65-rated enclosure and built-in protection against conditions including overcurrent, overvoltage, short circuits and thermal stress. The specified operating temperature range is −40°C to +60°C, with derating above 45°C.

For communication and monitoring, the range supports RS485, RS232 and CAN, with optional Wi-Fi, Bluetooth, GPRS, 4G and LAN connectivity depending on configuration.

Where Can Low Voltage Hybrid Inverters Be Used?

Electres Low Voltage Hybrid Inverters are designed for residential and suitable small commercial applications, integrating solar PV, battery storage, and grid power based on the site’s energy requirements.

• Homes & Apartments: Manage everyday household loads with coordinated solar generation and battery storage.
• Villas & Larger Homes: Support higher residential loads with an inverter matched to the property’s supply, PV capacity, and battery requirements.
• Shops & Showrooms: Integrate solar and battery storage with suitable retail loads and grid supply.
• Small Offices: Support everyday office loads while coordinating solar generation and battery storage.
• Small Workshops: Manage suitable workshop loads with solar PV, battery storage and grid power.

The appropriate model should be selected based on the phase type, connected loads, solar PV capacity, and battery configuration.

How to Choose the Right Low Voltage Hybrid Inverter?

Choosing the right inverter involves more than selecting a kW rating. Consider the electrical supply type, connected load, solar PV capacity, battery voltage, charging and discharging requirements, and backup needs.

Electres offers 3/3.6 kW to 8 kW Single-Phase and 5 kW to 20 kW Three-Phase Low Voltage Hybrid Inverters, allowing the system configuration to be selected according to the installation’s electrical and energy requirements.