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Solar Energy

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Tailor-made backup power solutions

PV system owners want maximum autonomy, including in the event of a power failure or grid fault. With many years of experience in the backup power sector, Fronius offers solutions to meet a range of needs. From cost-effective basic backup power supply to maximum security and the supply of electricity to the entire household with Full Backup, manual or automatic, with or without battery, single-phase and three-phase and, of course, black-start capable––we meet every customer need.

Advantages

  • Backup power variants for a wide range of requirements
  • Basic backup power supply integrated with the PV Point as standard*
  • Full backup option for maximum independence
  • Three-phase current for high-power loads

*on all Fronius GEN24 and GEN24 Plus inverters.

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    Backup power variants

    With our solutions, PV system owners are well prepared for all eventualities. Everything from a single source and tailored to individual needs.

    Basic Backup Power Supply with the PV Point

    The PV Point provides an integrated basic backup power supply for the Fronius GEN24 and Fronius GEN24 Plus. During a power failure, single-phase electrical loads up to 3 kW are supplied via a fused socket or a fused circuit. For even greater convenience, the PV Point Comfort ensures that selected electrical appliances are continuously supplied with power both in parallel grid operation and during a power failure. This accessory product can be easily retrofitted as a PC board in the inverter. The cabling of both solutions must be protected with a type A 30 mA RCD, plus a 13 A automatic circuit breaker for the PV Point Comfort.

    Advantages

    • Automatic activation in the event of grid failure
    • No complex additional installations required
    • Reliable supply for single-phase loads up to 3 kW 

    Full Backup for maximum autonomy

    With the Full Backup option, the Fronius GEN24 Plus in combination with a battery storage system offers maximum independence. Our black-start capable backup power solution is not only able to keep the entire household supplied, but can also operate energy-intensive loads such as heat pumps (as long as enough power from the PV system or the storage is available). In the event of a power failure, the inverter switches to backup power mode with the help of a backup power switching device such as the Fronius Backup Controller* or the Fronius Backup Switch*. It can do this automatically or manually. 

    Advantages

    • Supplying the entire household including large loads
    • Switching components tailored to the customer’s requirements
    • Efficient energy flows even in a backup power situation

    * Depending on country-specific certification and availability

    How it works at a glance

    Basic backup power supply

    The PV Point is a backup power solution integrated into the inverter that supplies current to single-phase loads up to 3 kW via a fused socket or a fused circuit. Backup power management with the PV Point Comfort has the advantage that the connected loads are continuously supplied with power, including in parallel grid operation.

    Full Backup

    In the event of grid failure, the hybrid inverter automatically disconnects the household from the grid. Energy for the entire household is then provided by the PV system and the battery storage system (as long as enough power is available). Our hybrid inverters and the Fronius Smart Meter ensure that the household remains disconnected from the grid until the fault is rectified and normal operation is restored.

    In order to be able to use their self-generated solar power at night, the Anzi family chose our Fronius GEN24 Plus hybrid inverter and the BYD battery storage system - together an unbeatable energy package and one of the most efficient systems on the market. 
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    Backup power solutions

    PV Point

    • An integrated basic backup power supply that supplies current to single-phase loads via a fused socket.

    PV Point Comfort

    • A PC board that can be retrofitted to the inverter to supply single-phase loads via a fused socket, including in parallel grid operation.

    Backup Switch*

    • A cost-effective, space-saving 3-way switch for manual activation of Full Backup mode
    • Available as Fronius Backup Switch 1P/3P-63A & Fronius Backup Switch 1PN/3PN-63A
    • *Depending on country-specific certification and availability

    Backup Controller*

    • A switch unit that automatically switches to Full Backup mode and back to normal operation
    • Available as Fronius Backup Controller 3P-35A
    • Coming soon: Fronius Backup Controller 3PN-35A
    • *Depending on country-specific certification and availability

    Fronius Reserva

    • The DC-coupled high-voltage battery with flexible capacities from 6.3 to 15.8 kWh ensures efficient storage and use of solar energy.
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