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The need for energy independence and rising electricity costs have led more and more users to look for sustainable, efficient and automated solutions. A photovoltaic system three-phase micro-grid, with local storage and intelligent management, is today one of the most balanced options for homes, businesses or properties in areas without stable network access.

EcoSolaris proposes a complete system, adapted to current performance, automation and safety requirements, based on high-quality equipment: Bauer 540W panels, Fronius and Victron inverters, EcoSolaris LiFePO4 batteries and Cerbo GX intelligent control system.

What is a micro-grid system?

A micro-grid is a local electricity network, capable of operating connected to the national grid or completely autonomous. Unlike on-grid systems (which stop in the absence of the network) and off-grid systems (which depend exclusively on batteries), the micro-grid combines connection flexibility with complete autonomy, with automatic switching between sources and priority towards renewable energy.

It is the ideal solution for users who want security in supply, cost reduction and total control of their own production and consumption.

Energy production – reliability and constant efficiency

The proposed system is built around 540W Bauer photovoltaic panels, monocrystalline, recognized for their high efficiency and constant performance in varied light conditions. The standard configuration ensures a daily energy production capable of covering the consumption of an average home or business with stable requirements.

The panels are mounted on a professional fixing system Single Rail K2 Systems, compatible with pitched roofs, terraces or ground mounting. These structures offer long-term mechanical safety and enable quick installation, with aesthetics integrated into the building's architecture.

The energy produced is managed by the Fronius Symo 7.0-3-M on-grid inverter, a three-phase model, equipped with two MPPT trackers and advanced monitoring functions. Fronius is responsible for injecting the energy directly into consumption, optimizing self-consumption and reducing the need from the grid. With over 98% efficiency and excellent compatibility with other equipment, this inverter ensures the perfect conversion of solar energy in real time.

Energy storage – autonomy and control

For backup or off-grid operation, the system includes a flexible storage solution, starting with 15 kWh, depending on the usage scenario. In the full version, o is used battery LiFePO4 EcoSolaris 15 kWh, with high-density lithium-phosphate cells, recognized for stability, safety and long life.

This storage capacity allows three-phase consumers to be fully powered for several hours, even in the absence of the sun or the grid, and integration with Victron Energy equipment ensures optimal communication.

For the conversion and distribution of stored energy, the system uses three inverters Victron MultiPlus II 48V 5000VA, mounted in three-phase parallel. They offer fast switching between sources, phase-balanced power and full backup functions, at all times. In addition, it provides a flexible interface for prioritization scenarios (direct consumption from solar, then battery, then grid). [#$$#]

Energy management – full, automated monitoring

The central control element is Cerbo GX from Victron Energy, a smart device that provides complete visualization of the energy flow in the system. Connected to all essential equipment – panels, inverters, batteries, network – Cerbo GX enables real-time control and adjustments, both locally and remotely, through the platform Victron Remote Management.

In addition to visualization and control, Cerbo GX can act as a logic unit: it automatically switches between sources, prioritizes consumption, manages battery charging and generates alerts if system errors occur.

Safety and organization – smart electrical distribution

For the correct and safe distribution of energy in DC mode, the system uses specialized Victron components:

• Lynx Power In (M8) – the connection point between the batteries and the rest of the system

• Lynx Distributor DC M8 – orderly distribution of direct current, with monitorable fuses

These modules provide a clear, modular, maintainable and scalable electrical architecture essential for any micro-grid system.

The system also includes two protective boards essentials:

• Protection and automation panel – 1 string, protects the line from the panels. iincludes differential protection, overload and automatic switches for transfer between sources (mains, battery, solar)

All components are configured by the EcoSolaris team according to national and European standards, with professionally dimensioned wiring.

Performance and adaptability – 15 kWh

One of the great advantages of the system is flexibility. It can be delivered in the version with 15 kWh storage, sufficient for a standard home, or in extended configuration, for properties with higher loads, significant night consumption or three-phase equipment (pumps, HVAC, UPS).

In all cases, the system is designed to allow further expansion, both on the storage side and on the production side – without replacing existing equipment.

Where does this system fit in?

• Residential housing with medium to high consumption

• Guest houses or cottages in areas with unstable network access

• Corporate offices that require constant backup

• Workshops, farms or buildings with three-phase loads

• Small data centers, technical rooms or IT systems that require continuous power

Why choose EcoSolaris?

EcoSolaris offers complete, customized and perfectly adapted solutions for each project. With extensive experience in the integration of Victron Energy, Fronius, EcoSolaris equipment, we deliver not only products, but functional energy infrastructure, tested, optimized and supported by constant service and support.

We offer:

• Free technical consultation;

• Energy design and simulation;

• Authorized installation and commissioning;

• Remote monitoring and ongoing maintenance.

Therefore, the three-phase micro-grid system with 15 kWh storage is a smart and scalable solution for those looking for autonomy, efficiency and total control. With high-performance solar generation, safe LiFePO4 storage and premium equipment interconnected by intelligent platforms, this system is ready for the energy reality of the future.

For a personalized offer and a detailed analysis of your consumption, the EcoSolaris team is at your disposal.