Fronius Storage solutions Product Guide

Fronius GEN24 Plus with BYD Battery-Box Premium HVS/HVM  

The BYD Battery-Box Premium HVS/HVM is the successor of the BYD Battery Box HV. The BYD Box Premium Line is compatible with GEN24 Plus (HVS/HVM) and Symo Hybrid (HVM). The capacities of the batteries range from 5.1–10.2 kWh (HVS) and 8.3-22.1 kWh (HVM). Fronius has once again achieved true grid back-up, with the BYD Battery-Box Premium HVS/HVM. This means that even three-phase loads can be used in a grid back-up situation.   

Please note:

/ During commissioning, make sure to set up the BYD using the BeConnect App first, then afterwards commission the GEN24 Plus.

/ The BYD battery should always be turned on before the inverter.

Turning the system off:

1. Battery OFF: Hold the power button on the front at least 5 seconds.
2. Inverter OFF:  Switch off the DC-side (rotary switch on the inverter) and the AC-side (circuit breaker).
3. Leave the components off for at least 30 seconds. The LEDs of the inverter and battery must be completely off.

Turning the system on:

1. Battery ON: Switch on the battery fuses. If you're unable to switch on the fuses, hold the power button for 5 seconds and try again.

2. Inverter ON: Switch on the DC-side (rotary switch on the inverter) and the AC-side (circuit breaker).

Further information on this storage solution and its backup feature can be found in the Fronius GEN24 Plus Product Guide.

Fronius GEN24 Plus with LG RESU FLEX

With the Fronius GEN24 Plus hybrid inverter and the high-voltage battery from LG Energy Solution, your customers get 24 hours of sunshine in their homes. This means they have their harvested PV energy reliably available at night and even in the event of an emergency power supply. The combination of Fronius GEN24 Plus and LG RESU FLEX enables high charging or discharging capacities for optimal use of the solar energy from your own PV system. This not only enables higher self-consumption, but also sustainably ensures greater self-sufficiency and independence from the public power grid. 

The LG RESU FLEX is clearly visualized in Fronius Solar.web. This gives you an overview of all data at all times - conveniently at the click of a button in just one app. 

The LG RESU FLEX battery convinces with the following strengths:

• Lithium battery storage (NMC), modularly expandable in 4.3 kWh steps.
• Storage capacities of 8.6 kWh, 12.9 kWh and 17.2 kWh*
• Emergency power capability (with PV point as well as full backup)
• Different variants of floor and wall mounting possible
• Temperature, water and dust resistant housing (IP 55 protection class)

* depending on type of inverter, country specific certification and availability

Fronius GEN24 Plus battery management

With battery management (time-of-use), rules can be defined according to which the battery is to be charged or discharged - depending on the day of the week and the time of day.

The advantages of this function:

• Individual definition of weekday and time of day dependent rules.
• Possibility for electricity tariff-dependent battery charging from the grid
• Reservation of storage capacity for the times with high PV production