TommaTech Trio Hybrid S Series LV AIO CMS CONTENT PACK

The TommaTech Trio Hybrid S LV AIO Series is a modular three-phase hybrid energy storage platform developed for residential and light commercial applications requiring integrated solar generation, battery storage and backup capability.

Rather than treating the inverter and battery bank as completely separate installations, the AIO architecture combines the hybrid inverter with stackable low-voltage battery modules to create a compact energy storage system. The inverter family is offered in 5, 6, 8, 10 and 12 kW nominal power ratings, while battery capacity can be expanded using 5.12 kWh modules.

The inverter incorporates PV input, battery charging and discharging, grid connection, backup load output and generator functionality. Two MPPT trackers manage the PV input, while CAN communication is used between the inverter and battery management system. The system supports operating modes including self-consumption, grid interaction, off-grid/backup operation and configurable charging priorities.

The low-voltage architecture uses a nominal 51.2 V battery module, with the official datasheet specifying a battery operating range of 43.2–57.6 V. Up to six battery modules can be paralleled without the additional accessory identified in the datasheet; the manufacturer states that up to 36 modules and approximately 184 kWh can be reached with an accessory. The exact accessory required for this expanded configuration should be confirmed by TommaTech before quotation.

The system is therefore best presented on an international B2B website as one configurable LV AIO product family, rather than five separate inverter products.

Main Advantages

• Integrated inverter and modular battery architecture
• 5 / 6 / 8 / 10 / 12 kW three-phase inverter options
• 5.12 kWh modular battery platform
• Two MPPT trackers
• Grid-connected, off-grid and UPS operating modes
• AC coupling capability
• Generator input and configurable charging priority
• CAN-based BMS communication
• IP65 enclosure rating after stacking
• Wi-Fi monitoring support
• Time-of-use and Smart Load functions
• Expandable battery storage architecture 

Configuration / Model Comparison

The following values use the current LV family datasheet as the primary product source. An important certification discrepancy is separately explained below.

*See Important Technical Notes before using these values in a binding quotation.

The battery datasheet uses the broader term Lithium-Ion, while the official user manual specifically describes the battery as lithium iron phosphate (LiFePO4).

Battery Expansion

• Standard module: 5.12 kWh
• Up to 6 modules in parallel without accessory
• Datasheet states up to 36 modules / 184 kWh with accessory
• Exact accessory and topology for the 36-module arrangement: manufacturer confirmation required before quotation. 

Technical Architecture

The LV AIO system uses a low-voltage parallel battery architecture. Each battery module operates at a nominal 51.2 V, while additional modules increase total available energy without converting the battery bank into a high-voltage series string.

The hybrid inverter interfaces with the PV array through two MPPT channels and manages energy flow between the solar array, battery system, grid, generator input and backup/load output. The inverter communicates with the battery BMS through CAN. The official manual also identifies separate grid, load, generator, parallel, meter and BMS interfaces.

This architecture is fundamentally different from the HV AIO series and is the principal reason the two ranges should remain separate CMS products.

How It Works

During solar production, the hybrid inverter converts PV power for the connected loads and can use surplus generation to charge the battery. Depending on the selected operating mode, stored battery energy can subsequently be used for self-consumption, backup loads or programmed time-of-use operation.

The inverter can also interact with the utility grid or a generator. Charging priorities and operating modes can be configured through the system interface, allowing solar, battery, grid and generator sources to be managed according to the project requirement.

Intended Applications

• Residential photovoltaic energy storage
• Residential backup power
• Solar self-consumption systems
• Three-phase homes and villas
• Light commercial energy storage
• Grid-connected hybrid PV systems
• Backup / UPS-supported installations
• Generator-supported solar and storage systems 

Compatibility

The official documentation supports integration with:

• PV modules
• Utility grid
• Backup loads
• Generator supply
• TommaTech battery/BMS architecture
• Meter/CT-based system measurement
• AC-coupled configurations
• Wi-Fi monitoring infrastructure 

Do not state general third-party battery compatibility on your website without a TommaTech compatibility confirmation.

Engineering and Selection Notes

Before selecting a particular LV AIO model, the project should be evaluated based on:

• Maximum simultaneous AC load
• Three-phase load distribution
• Required backup power
• Motor/compressor starting currents
• Daily electricity consumption
• Required battery autonomy
• PV array capacity
• PV module Voc at minimum site temperature
• PV string Vmp versus inverter MPPT range
• PV string current and short-circuit current
• Required battery charge/discharge power
• Generator power and interface requirement
• Grid-code requirements in destination country
• Installation ambient temperature
• Number of battery modules required
• Expansion requirement
• Whether extended battery paralleling accessory is required

These are project engineering inputs, not universal product specifications.

Information Required Before Quotation

Ask the customer for:

1. Installation country and project location
2. Grid voltage and frequency
3. Required inverter power
4. Single-line load list or maximum simultaneous load
5. Critical/backup load requirement
6. Daily energy consumption in kWh
7. Required backup duration
8. Existing or planned PV capacity
9. Solar panel model and electrical specifications
10. Number of panels and proposed string arrangement
11. Generator availability and rating
12. Desired battery capacity
13. Indoor/outdoor installation condition
14. Minimum and maximum ambient temperature
15. Grid-connected, backup or off-grid operating requirement
16. Required local grid certifications
17. Future storage expansion requirement

Recommended Call to Action

Share your load profile, PV module specifications, required backup duration and project location with our team so that the correct inverter rating and battery configuration can be selected for your application.