/
Perfect Welding / Solar Energy / Perfect Charging
PV-GENSET
Solutions with Fronius Tauro/
inverter
ALL ADVANTAGES AT A GLANCE:
/ Reduce diesel costs and minimize energy costs
/ Short payback period
/ Guarantees a stable energy system
/ Easy integration into existing Genset systems
/ Reduce CO
/ Ideal for backup applications with one or more
diesel generator(s)
2 footprint
Fronius inverter
1
Solar Controller
2
Diesel generator
3
1
2
3
MULTI-GENERATOR SYSTEM CONFIGURATION DIAGRAM:
(PV-GENSET ADVANCED)
PV GENERATOR
FRONIUS TAURO
BATTERY
Power path
Communication path
Measurement
GENSET
SOLAR
CONTROLLER
GRID
LOADS
WHAT IS NEEDED FOR THE IMPLEMENTATION OF THE PV GENSET SOLUTION
PV-GENSET
DEVICE TYPE NOTE
PV INVERTER
SOLAR CONTROLLER
Fronius SnapINverter
Fronius Tauro
Fronius GEN24
Elum
(ePowerControl)
ENcombi
(ECpv)
DEIF
(ASC)
Fronius SnapINverter
- Symo 3.0-3-M bis 8.2-3-M
- Symo 10.0-3-M bis 20.0-3-M
- Eco 25.0-3-S bis 27.0-3-S
- Symo Advanced 10.0-3 bis 12.0-3 208-240
- Symo Advanced 15.0-3 bis 24.0-3 480
- Symo 15.0-3-S 208-240
Fronius Tauro (Tauro, Tauro ECO)
- Tauro 50.0 kW
- Tauro ECO 50.0 bis 100.0 kW
Fronius GEN24 & GEN24 Plus
- Symo GEN24 6.0 bis 10.0 [Plus]
The solar controller is the communication in
terface and is responsible for the flawless control of the entire system.
Thanks to the integrated Fronius communi
cation unit, third-party components are easy
to integrate into a control unit using Modbus
RTU or via TCP using the SunSpec inverter
control model.
-
-
BATTERY
OPTIONAL
ComAp
(InteliSys)
You can find more helpful information in
the following Fronius webinars:
DEIF-Webinar Elum-
Webinar
A battery solution, which discharges regulated
PV energy (due to min. Genset loading) and
supports it in times of PV shortages, can
increase the system‘s profitability.
The power of the battery storage system
should be dimensioned such that it can replace
the power of a diesel generator. If the Genset
minimal load is not reached, PV curtailment
should be prevented to make it possible to
store the generated PV energy in the battery.
System-
Controller-
Webinar
DEVICE TYPE NOTE
COMMUNICATION BETWEEN
FRONIUS INVERTER /
SOLAR CONTROLLER
GENERATOR OUTPUT
FRONIUS INVERTER SETUP
Modbus RTU The Fronius inverters are connected to the
solar controller via Modbus RTU.
In order to ensure communication between
the inverters, it is necessary to assign a number
to every device in the ring. This is completed
via the Setup menu on every inverter in the
DATCOM submenu. In the DATCOM menu,
it must also be checked that the protocol type
is set to Solar Net. Feedback regarding the
successful configuration of the Solar Net ring
is given via the DATCOM status.
Electricity meter External meters are used in a multi-generator
system to record the loads and power of the
Genset. The connection is typically established
via a Modbus RTU line at the solar controller.
The Fronius inverter has a special MicroGrid setup (MG 50/ MG 60) with different functions that
ensure stable operation of the MicroGrid. This can be adjusted on the display / web interface of
the Fronius inverter.
TRANSFORMATOR
FRONIUS SOLAR.WEB
CONNECTION
The multi-generator solutions are suitable for both low-voltage and medium-voltage applications
Every PV-Genset system can be monitored, analyzed, and visualized at all times using the free
Fronius Solar.web inverter monitoring portal. A second Modbus interface can be used to integra
te a Fronius Smart Meter into the Solar.web of Fronius Tauro devices for measuring generators
and loads. Additional Smart Meters can be added to Fronius system monitoring for a Fronius
SnapINverter using a Datamanager Box.
-
Text and images c orrespond to the cu rrent state of technolog y at the time of print ing. Subject to modif ications.
All info rmation is without g uarantee in spite of ca reful editin g - liability exclud ed. Copyright © 2 011 Fronius™. Al l rights reserve d.
BACKUP-FUNKTION
STABLE POWER SUPPLY WITH A PV-GENSET SYSTEM
Companies use a PV-Genset system to safeguard their power supply. This is particularly crucial for companies if the local grid does not
guarantee a stable power supply. The combination of a diesel generator with a solar system ensures a continuous energy input without
interruption.
It is important to make sure that there is adequate interplay between grid, PV generator, and Genset, particularly when it comes to PVGenset systems with a grid connection. The PV system controller takes care of this function in combination with a feedback contact. Solar
controllers also support this function. Additional measuring components may be involved depending on the manufacturer.
FINDING THE RIGHT SYSTEM SIZE
When planning any system, it is important to note that a minimum load for the diesel generator equivalent to 30% of its nominal power
must not be continuously undershot. The optimum system size is between the maximum load and the minimum power. If there are
battery storage units in the system, the power of the associated battery inverter can be incorporated into the design for the power of the
generators, allowing for larger photovoltaic systems.
WE ARE HERE FOR YOU.
Fronius uses simulations based on a completed
PV-Genset checklist to help its customers
determine the optimum system size during
system planning.
Take a look at our reference
to see a great example of
REFERENCE
PV-GENSET
our PV-Genset
solutions in practice:
/ 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
EN v03 Nov 2022
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