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SOLAR ENERGY

Fronius MicroGrid &

backup solution

pv modules on roof

Off-grid, stable power supply with solar energy

MicroGrids are often formed in regions with an insufficient power supply. MicroGrids either function completely without grid connection as a regional, self-contained grid or serve as a grid-connected backup system. Diesel generators are often used to maintain the energy supply. However, the majority of MicroGrid & backup systems rely on solar energy as a stable, inexpensive and sustainable source of energy.

Advantages

Highly reliable supply
Stable energy costs
Proven system with minimum service requirements
MicroGrid setup integrated in the inverters
Highly reliable supply
Stable energy costs
Proven system with minimum service requirements
MicroGrid setup integrated in the inverters

How the Fronius MicroGrid & backup solution works

The MicroGrid system functions as a stand-alone island without any grid affiliation or as a back-up solution to maintain the power supply in the event of grid failures. In the event of a power failure, the system automatically decouples itself from the grid and creates its own, self-contained network (MicroGrid).

These systems make a diesel generator redundant. Using solar energy rather than a diesel system, system owners benefit not only from lower costs but also from the lack of noise and unpleasant odors.

Smart Inverters for Stable MicroGrid Operation

Fronius inverters have a special, integrated MicroGrid setup which ensures stable operation of the system. The electricity generated by the PV system is temporarily stored in a battery by an inverter charger. The system is particularly flexible and can optimally adapt the interaction between the photovoltaic system and the inverter charger to the MicroGrid system. The Fronius Verto and GEN24 Primo and GEN24 Symo inverters are the first choice for the MicroGrid & backup system.

Victron and Verto inverter

Intelligent PV Power Control in MicroGrids

The inverter provides the MicroGrid with as much PV energy as possible. If the load is less than the maximum capacity of the PV generator and if the batteries are already full (or the charging power of the inverter charger is too low), automatic PV power reduction will be required. Most of the time, the output of the inverter is controlled without communication. In this case, the frequency droop characteristic of the inverter charger and the Fronius inverter ensure optimum power setpoints. With an inverter charger from Victron Energy (Victron MultiPlus, Victron Quattro), the Fronius MicroGrid setup can be used without further configuration on the Fronius inverter.

Verto inverter and victron
Schemata