Installer in front of GEN24 inverter on the wall

Fronius GEN24 & GEN24 Plus. Designed to empower.

Inverter with backup power function for private households

Ready for the private energy revolution: With our Fronius GEN24* inverter at the heart of their private photovoltaic system, households can produce their own energy sustainably and inexpensively. The Fronius GEN24 Plus hybrid inverter even enables a battery storage system to be used, providing complete energy self-sufficiency for electricity, heating, cooling, and e-mobility, even at night.

While the Fronius GEN24 offers an integrated basic backup power supply in the form of the PV Point, the Fronius GEN24 Plus** can also provide a comprehensive Full Backup power supply via a connected battery storage system.

The heart of private photovoltaic systems
Fronius UP.storage: Software upgrade from the Fronius GEN24 to the Fronius GEN24 Plus* hybrid inverter
Fast installation and configuration
Sustainable development and production
Made in Europe

Fronius GEN24*

integrated basic backup power function

Primo (single phase) 3–6 kW
Symo (three phase) 3–12 kW

Fronius GEN24 Plus**

two backup power options/battery connection

Primo (single phase) 3–6 kW
Symo (three phase) 3–12 kW

* With Fronius UP.storage update option to upgrade to the Fronius GEN24 Plus hybrid inverter. Available in the Fronius webshop in selected countries.

** The Full Backup option is not available for the Fronius Symo GEN24 3.0–5.0 Plus.

The inverter with flexible backup power options

Backup power for every situation

Your energy supply must be reliable. That’s why the Fronius GEN24 offers an integrated basic backup power supply. Backup power is supplied to connected devices up to 3 kW via the PV Point socket, as long as the sun is shining.

With the PV Point and Full Backup*, the Fronius GEN24 Plus offers two backup power options: a power supply for loads of up to 3 kW via a single socket and a backup power supply for the entire home, including large, three-phase loads such as heat pumps.

_{* The Full Backup option is not available for the Fronius Symo GEN24
3.0–5.0 Plus. For Full Backup, a battery and a switching device for safe grid disconnection are required in addition to the inverter.}

Versatility as standard

Thanks to their energy management functions, our inverters continuously save time and money. The smart device design combined with our intelligent software enables fast and flexible installation and delivers optimum yields, even when the PV modules are in the shade. What’s more, the integrated active cooling extends the service life of the inverters, securing your customers’ investment.

Built-in freedom

The Fronius GEN24 and Fronius GEN24 Plus were developed to enable you to make your customers' energy self-sufficiency as individual as possible. That is why both inverters have open interfaces. This makes the integration and control of components from Fronius or third-party providers particularly straightforward. An integrated and intelligent load management system efficiently uses surplus PV power by prioritising consumers such as heat pumps, pool pumps or wallboxes and controlling them as needed.

Open interfaces for easy integration and control of Fronius and third-party components
Increased self-consumption thanks to integrated and intelligent load management for the controlled operation of various consumers

Fronius GEN24 and Fronius GEN24 Plus The Fronius GEN24 and Fronius GEN24 Plus boast a wide range of features that support a sustainable, independent energy supply. Discover the key features for installers and their customers at the click of a button.

Remote maintenance via app

/ Backup power for the whole household, incl. large loads

/ Automatic or manual switch to backup power mode in the event of a power failure

/ Requirement: Battery storage system and grid switching device

* The Full Backup option is not available for the Fronius Symo GEN24 Plus 3.0–5.0 Plus.

More solar energy

/ Dynamic Peak Manager: integrated software solution (shade-tolerant algorithm)

/ No additional hardware in the module array: maximum yield even in partial shade

/ Optimization at string level

Optimum energy use

/ Multi Flow Technology enables simultaneous energy flows in all directions as well as AC, DC, and AC/DC connection to the energy storage device

/ High self-consumption rates and flexibility in the system

/ Reliable power supply even during power failures / Control of battery charging and battery use

Comprehensive Full Backup* power function for GEN24 Plus

/ Backup power for the whole household, incl. 3-phase loads

/ Automatic switch to backup power mode during a power failure

_{* The Full Backup option is not available
for the Fronius Symo GEN24
Plus 3.0–5.0 Plus.}

Remote maintenance via app

/ Backup power for the whole household, incl. large loads

/ Automatic or manual switch to backup power mode in the event of a power failure

/ Requirement: Battery storage system and grid switching device

* The Full Backup option is not available for the Fronius Symo GEN24 Plus 3.0–5.0 Plus.

More solar energy

/ Dynamic Peak Manager: integrated software solution (shade-tolerant algorithm)

/ No additional hardware in the module array: maximum yield even in partial shade

/ Optimization at string level

Optimum energy use

/ Multi Flow Technology enables simultaneous energy flows in all directions as well as AC, DC, and AC/DC connection to the energy storage device

/ High self-consumption rates and flexibility in the system

/ Reliable power supply even during power failures / Control of battery charging and battery use

Comprehensive Full Backup* power function for GEN24 Plus

/ Backup power for the whole household, incl. 3-phase loads

/ Automatic switch to backup power mode during a power failure

_{* The Full Backup option is not available
for the Fronius Symo GEN24
Plus 3.0–5.0 Plus.}

Long service life

/ Active cooling technology extends the service life of the inverter

/ Reliable independent energy supply

/ Investment security for customers

Flexible and fast installation / SuperFlex Design enables maximum flexibility in the system design

Built-in freedom

/ Easy integration of Fronius or third-party components such as heat pumps and smart home systems

/ Market-standard interfaces, such as Modbus RTU/TCP Sunspec, Solar API, digital IOs, LAN/WLAN

Integrated basic backup power supply

/ No complex additional installations required

/ Supplies 1-phase loads of up to 3 kW in the home

Long service life

/ Active cooling technology extends the service life of the inverter

/ Reliable independent energy supply

/ Investment security for customers

Flexible and fast installation

/ SuperFlex Design enables maximum flexibility in the system design

Built-in freedom

/ Easy integration of Fronius or third-party components such as heat pumps and smart home systems

/ Market-standard interfaces, such as Modbus RTU/TCP Sunspec, Solar API, digital IOs, LAN/WLAN

Integrated basic backup power supply

/ No complex additional installations required

/ Supplies 1-phase loads of up to 3 kW in the home

Always the right solution: with or without a Plus

With the Fronius GEN24 and Fronius GEN24 Plus, we have two powerful inverters in our product portfolio. Which one you recommend to your customers depends entirely on their needs:

Use of your solar power

Fronius GEN24

Direct use of energy from your customer’s photovoltaic system, when the sun is shining:

Self-sufficiency instead of relying entirely on the grid
Cost savings instead of high energy prices

Fronius GEN24 Plus

Greater independence thanks to the battery storage connection:

Flexible use of solar power, day or night
Even more independence from electricity providers and energy prices

Supply in case of a power supply failure

Fronius GEN24

Backup power when the sun is shining:

PV Point integrated basic backup power function
Supply of up to 3 kW via a socket

Fronius GEN24 Plus

Enhanced security with two backup power options for every situation:

PV Point for backup power supply via a socket

Full Backup for reliable backup power for the whole home, even for large loads such as heat pumps

Fronius UP.storage

For those who still can’t decide: With the Fronius UP.storage* software upgrade for the Fronius GEN24, the existing device can be retrofitted with a battery connection at any time, including the Full Backup option.**

_{* Available in the
Fronius webshop in selected countries.}

_{** Not available
for the Fronius Symo GEN24
3.0–5.0 Plus.}

Solar.start – the app by pros for pros

Configure Fronius inverters in just a few minutes: Solar.start makes it easy for you.

Quick and easy commissioning in just three steps

Network settings
Product configuration
Integration into the Fronius Solar.web monitoring platform

Quick access to the web interface for additional settings and functions
Full warranty coverage when you register the inverter on Solar.web
Link to useful platforms such as Solar.web and Solar.SOS

Download Solar.start for free now

Fronius comes in top for fifth time

Fronius GEN24 Plus and BYD Battery-Box Premium: This combination once again achieves top rankings at the Energy Storage Inspection 2024. The Energy Storage Inspection is carried out annually by HTW Berlin and is considered Europe’s most important study on the efficiency of PV storage systems. As part of this inspection, the duo made a great impression for the fifth time in a row thanks to its exceptional efficiency.

Find out more about the energy storage device inspection

Sustainable right from the start

From the initial consultation and installation through to maintenance, the Fronius GEN24 and Fronius GEN24 Plus give installers an advantage right from the start: The sustainable product features such as the use of 100% recycled aluminum in the heat sinks and the repairability of the devices are effective selling points when advising customers. Assembly and configuration are completed in no time, and the option of carrying out maintenance via an app guarantees satisfied customers who can look forward to minimum downtimes and maximum yield.

A life with 24 hours of solar power, is that even possible? Yes! The Anzi family is already living this vision of the future in Niederfüllbach, Germany, and relies entirely on quality Fronius products to make it happen. These products transform the power of the sun into electricity, heating, cooling, and e-mobility, enabling the family to live an energy self-sufficient life. Click here to learn more about their experience

Technical data

Technical data	Primo GEN24 Primo GEN24 Plus	Symo GEN24 Symo GEN24 Plus
Single-phase / three-phase	single-phase 230 V	three-phase 230 / 400 V
Power classes	3 / 3.6 / 4 / 4.6 / 5 / 6 kW	3 / 4 / 5 kW*	6 / 8 / 12 kW
MPP-Tracker	2	2
Protection class	IP 66	IP 66
Dimensions (h x w x d) in mm	474 x 530 x 165	474 x 530 x 165	529 x 595 x 180
Weight	15,4 kg	15,6 kg	23,4 kg
DC input voltage (U_{dc min} - U_{dc max})	65 V - 600 V	80 V - 1.000 V

*The Full Backup option is not available for the Fronius Symo GEN24 3.0–5.0 Plus. For Full Backup, a battery and a switching device for safe grid disconnection are required in addition to the inverter.

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Solar Energy

Fronius GEN24 & GEN24 Plus. Designed to empower.

Inverter with backup power function for private households

The inverter with flexible backup power options

Backup power for every situation

Versatility as standard

Built-in freedom

Always the right solution: with or without a Plus

Use of your solar power

Fronius GEN24

Fronius GEN24 Plus

Supply in case of a power supply failure

Fronius GEN24

Fronius GEN24 Plus

Fronius UP.storage

Solar.start – the app by pros for pros

Download Solar.start for free now

Fronius comes in top for fifth time

Sustainable right from the start

Technical data

Downloads

Find a sales partner near you and order your Fronius GEN24 or Fronius GEN24 Plus.