/
Perfect Welding / Solar Energy / Perfect Charging
BATTERY STORAGE SOLUTION
with Fronius GEN24 Plus and compatible battery storage
- BYD Battery-Box Premium HVS/HVM or
- LG RESU FLEX
THE ADVANTAGES AT A GLANCE:
3a
/ Use of PV energy also possible at night
/ Demand-oriented backup power variants
/ Simultaneous supply of the loads and charging of the battery
also possible in the event of a power outage
1
/ High self-consumption and self-sufficiency rates
/ Highest system efficiency thanks to DC coupling of the battery
storage and high voltage technology
ONBOARD BASIC BACKUP POWER SUPPLY:
THE PV POINT
/ Single-phase loads in households up to 3 kW can be supplied with backup power
/ No additional installations necessary
/ Automatic activation in case of a grid outage
PV POIN T
2
1
Fronius Inverter
2
Fronius Smart Meter
3a
OPTION 1: LG RESU FLEX
3b
OPTION 2: BYD Battery-Box
Premium HVS/HVM
3b
Self-consumption
LOW VERY HIGHMEDIUM HIGH
Energy
self-sufficiency
LOW VERY HIGHMEDIUM HIGH
* depending on the heat generation in the household.
*
Cost-effectiveness
LOW VERY HIGHMEDIUM HIGH
Ease of installation
LOW VERY HIGHMEDIUM HIGH
COMPATIBILITIES AND MAXIMUM CHARGING AND DISCHARGING POWER:
BYD BATTERY-BOX PREMIUM
HVS HVM
MAXIMUM DC CHARGING AND DISCHARGING POWER WITH GEN24 PLUS (KW)
Primo GEN24 3.0 Plus 3.11 3.11 - 3.11 3.11 3.11 3.11 Primo GEN24 3.6 Plus 3.81 3.81 - 3.81 3.81 3.81 3.81 Primo GEN24 4.0 Plus 4.14 4.14 - 4.14 4.14 4.14 4.14 Primo GEN24 4.6 Plus 4.51 4.75 - 4.51 4.75 4.75 4.75 Primo GEN24 5.0 Plus 4.51 5.17 - 4.51 5.17 5.17 5.17 Primo GEN24 6.0 Plus 4.51 6.20 - 4.51 5.63 6.20 6.20 -
Symo GEN24 3.0 Plus 2.56 3.15 3.15 2.56 3.15 3.15 3.15 3.15
Symo GEN24 4.0 Plus 2.56 3.84 4.18 2.56 3.20 3.84 4.18 4.18
Symo GEN24 5.0 Plus 2.56 3.84 5.20 2.56 3.20 3.84 4.48 5.20
Symo GEN24 6.0 Plus 4.51 6.22 6.22 4.51 5.63 6.22 6.22 6.22
Symo GEN24 8.0 Plus 4.51 6.76 8.26 4.51 5.63 6.76 7.88 8.26
Symo GEN24 10.0 Plus 4.51 6.76 9.01 4.51 5.63 6.76 7.88 9.01
MAXIMUM DC CHARGING AND DISCHARGING POWER WITH GEN24 PLUS (KW)
Primo GEN24 3.0 Plus 3.11 3.11 Primo GEN24 3.6 Plus 3.81 3.81 Primo GEN24 4.0 Plus 4.14 4.14 Primo GEN24 4.6 Plus 4.30 4.75 Primo GEN24 5.0 Plus 4.30 5.17 Primo GEN24 6.0 Plus 4.30 6.20 -
Symo GEN24 3.0 Plus 2.86 3.15 3.15
Symo GEN24 4.0 Plus 2.86 4.18 4.18
Symo GEN24 5.0 Plus 2.86 4.29 5.20
Symo GEN24 6.0 Plus 4.30 6.22 6.22
Symo GEN24 8.0 Plus 4.30 6.50 8.26
Symo GEN24 10.0 Plus 4.30 6.50 8.50
1
The data in the table is the DC charging and discharging power. This DC discharge power differs from the AC power that then reaches the loads in the household, since the
efficiency of the inverter must also be taken into account here.
HVS 5.1 HVS 7.7 HVS 10.2 HVM 11.0 HVM 13.8 HVM 16.6 HVM 19.3 HVM 22.1
1
LG RESU FLEX
1
8.6 12.9 17.2
DIFFERENCES OF BYD BATTERY-BOX PREMIUM HVS VS. HVM:
BYD BATTERY-BOX PREMIUM
HVS HVM
High battery module voltage, therefore excellent system eciency (confirmed by HTW Berlin) Higher energy density, therefore lower space requirement
Higher charging and discharging power at similar capacity: HVS 10.2 up to 9.01 kW Lower charging and discharging power at similar capacity: HVM 11.0 up to 4.51 kW
Scalable up to 7.68 kWh (Primo GEN24 Plus) / 10.24 kWh (Symo GEN24 Plus) without parallel operation
Parallel operation up to 23.04 kWh (Primo GEN24 Plus) / 30.72 kWh (Symo GEN24 Plus) Parallel operation up to 57.96 kWh
Scalable up to 19.32 kWh (Primo GEN24 Plus) / 22.08 kWh (Symo GEN24 Plus) without
parallel operation
PARALLEL OPERATION FRONIUS GEN24 PLUS AND BYD BATTERY-BOX PREMIUM HVS/HVM:
Due to the expandability of the BYD Battery-Box Premium HVS/HVM, up to 3 batteries can be operated in parallel. The advantage of parallel
operation of several storage units is that a high capacity can be achieved. Thus, even small commercial systems can be realised with the
combination of Fronius GEN24 Plus and BYD Battery-Box Premium HVS/HVM.
THE FOLLOWING TABLE SHOW THE POSSIBLE COMBINATIONS DEPENDING ON THE INVERTER AND STORAGE TYPE:
BYD BATTERY-BOX PREMIUM
HVS HVM
2x / 3x
HVS 5.1
Fronius Primo GEN24 Plus
Fronius Symo GEN24 Plus
Parallel operation increases the capacity of the battery, but the charging and discharging power remain the same as when operating a single battery.
2x / 3x
HVS 7.7
2x / 3x
HVS 10.2
-
2x / 3x
HVM 11.0
2x / 3x
HVM 13.8
2x / 3x
HVM 16.6
2x / 3x
HVM 19.3
2x
HVM 22.1
- -
3x
HVM 22.1
-
Please also follow the BYD guidelines for parallel operation of the BYD Battery-Box Premium HVS/HVM. National regulations, the grid operator‘s
specifications or other factors may require a residual current circuit breaker in the AC connection lead. In this case, in accordance with national
legislation, Fronius recommends that a residual current circuit breaker with a tripping current of at least 100 mA suitable for frequency converters
be used. Parallel operation depends on the respective availability and the certification in the country.
CONFIGURATION SCHEME
Modbus RTU / RS 485
12 V
PV GENERATOR FRONIUS GEN24 PLUS
VARIANT 1
PV POINT
DC-COUPLED BATTERY
STORAGE SYSTEM
Modbus RTU /
RS 485
VARIANT 2
FULL BACKUP
HOUSEHOLD LOADS
FRONIUS
SMART METER
UTILITY
METER
WHAT IS NEEDED TO IMPLEMENT THE FRONIUS BATTERY STORAGE SOLUTION?
DEVICE TYPE NOTE
INVERTER
BATTERY STORAGE SYSTEM
Fronius Primo GEN24 Plus or
Fronius Symo GEN24 Plus
BYD Battery-Box Premium HVS/HVM
or LG RESU FLEX
Depending on the type of inverter and the type and
capacity of the battery
You can find more details on the BYD Battery-Box
Premium HVS/HVM under the following link
https://www.bydbatterybox.com/
For more information on the LG RESU FLEX, go to
https://www.lgessbattery.com/
GRID
communication path
power path
FRONIUS SMART METER
COMMUNICATION
INVERTER WITH BATTERY
COMMUNICATION INVERTER
63A-1; 63A-3; 50KA-3
240V-3 UL; 480V-3 UL; 600V-3 UL
TS 100A-1; TS 65A-3; TS 5KA-3
The inverter communicates with the battery via a shielded 4-pin cable (CAT5 and higher) via Modbus
RTU (RS485). The terminating resistors must be set at the end of the ring, with the BYD Battery-Box
Premium HVS/HVM by means of a DIP switch directly on the battery, with the LG RESU FLEX in the
RESU Monitor App. To ensure proper functioning, the inverter and battery always need to have the
latest software update. The software update of the inverter can be activated via Fronius Solar.web.
Cable connection (CAT5 and higher) via Modbus RTU (RS485)
/ Suitable for single-phase and three-phase grids
/ Measures energy consumption and energy from the grid
WITH SMART METER
BACKUP POWER OPTIONS
1
VARIANT 1:
BACKUP POWER VARIANT:
„PV POINT“
- ON BOARD -
For the PV Point, a socket must be connected to the OP-terminal of the inverter in accordance with
the installation standard. The PV Point can be implemented with or without a battery storage. For
further details on installation, please refer to the Fronius GEN24 Plus Operating Instructions.
VARIANT 2:
BACKUP POWER VARIANT:
„FULL BACKUP”
1
Only one of the two backup power variants can be implemented.
2
The Full Backup option is available for the Primo GEN24 Plus 3 - 6 kW and the Symo GEN24 Plus 6 - 10 kW.
2
For the Full Backup, additional mains switchover contactors or auxiliary relays (Enwitec) are required.
The requirements for this switchover vary from country to country - please contact your grid operator.
For the Full Backup, a battery storage is required.
Text and images c orrespond to t he current state of techn ology at the t ime of printing. Subject to mo dificat ions.
All info rmation is w ithout gua rantee in spite of carefu l editing - liabilit y excluded. C opyright © 2 011 Fronius™. All rights re served .
Scan the QR code and
discover the vision and
storage solution of Fronius:
APPROVED
GEN24 Plus brings us
another step closer to our
vision of 24 hours of sun:
It`s all about sustainability – throughout all
phases of the product life cycle. The following
facts confirm this:
/ Extension of the inverters service life thanks
to active cooling
/ Comprehensive functions and open interfaces
replace the need for additional equipment
/ > 90% recycled aluminium is used in the
aluminium heat-sink
Even more information
on sustainability with the
Fronius GEN24 Plus
/ Perfect Welding / Solar Energy / Perfect Charging
THREE BUSINESS UNITS, ONE GOAL: TO SET THE STANDARD THROUGH TECHNOLOGICAL ADVANCEMENT.
What began in 1945 as a one-man operation now sets technological standards in the fields of welding technology, photovoltaics and battery charging. Today, the
company has around 5,660 employees worldwide and 1,321 patents for product development show the innovative spirit within the company. Sustainable
development means for us to implement environmentally relevant and social aspects equally with economic factors. Our goal has remained constant throughout:
to be the innovation leader.
Further information about all Fronius products and our global sales partners and representatives can be found at www.fronius.com
Text and images c orrespond to t he current state of techn ology at the t ime of printing. Subject to mo dificat ions.
All info rmation is w ithout gua rantee in spite of carefu l editing – liabilit y excluded. C opyright © 2 022 Fronius™. All r ights reser ved.
EN v11 Nov 2022
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