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Perfect Welding / Solar Energy / Perfect Charging
FRONIUS E-MOBILITY SOLUTION
With Fronius inverter, Fronius Wattpilot
and Fronius Smart Meter
1
THE ADVANTAGES AT A GLANCE:
/ PV system and electric car pay for
themselves more quickly
/ Low-cost electricity for the electric car
/ Increased PV self-consumption rate
/ Less energy sourced from the grid
/ Dynamic use of the PV surplus
2
Fronius inverter
1
2
Fronius Smart Meter
3
Fronius Wattpilot
3
PHOTOVOLTAICS WITH E-MOBILITY –
THE PERFECT COMBINATION
In most cases, the mobility sector is the most energy-intensive. It therefore makes sense for PV system owners
to electrify this sector and switch to an electric car, or for existing electric car owners to invest in a PV system
for greater benefits.
The Fronius Wattpilot is a PV-optimised charging solution and can charge the car particularly cost-effectively and
sustainably with surplus PV energy in ampere increments. This results in a win-win situation: cheap charging of the
electric car, a higher rate of PV self-consumption and faster payback of the PV system costs.
Self-consumption
LOW VERY HIGHMEDIUM HIGH
Total energy autonomy
LOW VERY HIGHMEDIUM HIGH
1
Depending on the battery capacity of the electric car
2
Depending on heat generation in the household and annual mileage
2
1
Cost effectiveness
LOW VERY HIGHMEDIUM HIGH
Ease of installation
LOW VERY HIGHMEDIUM HIGH
CONFIGURATION DIAGRAM:
-0.23
kW
PV GENERATOR
FRONIUS
INVERTER
FRONIUS
SMART METER
GRID
Communication path
Power path
FRONIUS
WATTPILOT
ELECTRIC CAR
LOADS
IN THE HOME
THE FRONIUS WATTPILOT:
THE INTELLIGENT CHARGING SOLUTION FOR AT HOME AND ON THE ROAD
The Fronius Wattpilot is available in two versions – the permanently mounted Wattpilot Home for the home and
the mobile Wattpilot Go for on the road.
Cost-efficient charging with variable electricity tariffs:
Cent/kWh
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.29
-0.5
-1.0
00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 00:00
-0.01
Electricity price (eurocent/kWh)
-0.41
-0.32
0.01
0.04
2.59
1.54
3.01
3.07
3.01
2.99
3.06
3.50
3.72
Variable electricity tariffs allow the electric car to be charged very cheaply with green electricity from
the grid, especially at night when rates are low. This feature will initially be available in Austria and
Germany.
3.78
4.00
3.65
3.40
2.90
2.83
2.75
2.10
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
7:00 9:00 11:00 13:00 15:00 17:00 19:00 21:00 23:00
3-phase
Electric carPV generation
Dynamic PV surplus charging:
Dynamic PV surplus charging can
be used to charge the electric car
with surplus solar energy in ampere
increments. This results in higher
self-consumption rates and the
PV system paying for itself more
quickly.
1-phase
WHAT IS NEEDED TO IMPLEMENT THE E-MOBILITY SOLUTION?
DEVICE TYPE NOTE
INVERTER
FRONIUS
WATTPILOT
SMART METER
Fronius Primo GEN24 Plus or Fronius Symo
GEN24 Plus as well as all SnapINverters
from Datamanager 2.0 onwards
Fronius IG, Fronius IG TL, Fronius IG Plus
and Fronius CL in combination with a
Datamanager 2.0
Third-party inverter in combination with a
Datamanager Box 2.0
Wattpilot Go 11 J,
Wattpilot Go 22 J or
Wattpilot Home 11 J
63A-1; 63A-3; 50KA-3
TS 100A-1; TS 65A-3; TS 5kA-3
For PV optimisation, no further self-consumption
controls (battery, Power2Heat, etc.) may be
enforced at the same time.
Furthermore, the loads in the household are not
taken into account on the display in the Solar.
wattpilot app.
/ Additional adapter sets for the Wattpilot Go
(e.g. 16A CEE plug to earthed plug, etc.), RFID
tags, type 2 cables or additional wall mounting
plates available
/ Essential for PV surplus charging
/ Suitable for single-phase and three-phase grids
/ Measures energy consumption and energy
sourced from the grid
Discover the benefits of our
e-mobility solutions working
in perfect harmony:
REFERENCE
WATTPILOT / AUSTRIA:
APPROVED
The Wattpilot realises our vision
of 24 hours of sun:
Sustainability is a top priority throughout the
entire product life cycle.
The following facts speak for themselves:
/ Promote zero-emission mobility to significantly
improve the climate
/ Independently and sustainably charge electric
cars with your own PV system
/ Adjustable modes for particularly resource-
conserving charging
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.
WHAT IS NEEDED TO IMPLEMENT THE E-MOBILITY SOLUTION?
WATTPILOT INSTALLATION
AND START-UP
COMMUNICATION
BETWEEN INVERTER
AND WATTPILOT
The Fronius Wattpilot is commissioned via a WLAN hotspot using the Solar.wattpilot app.
Please check the following before installation:
/ Supply cable cross-section: Wattpilot Go 11 J / Home 11 J min. 2.5 mm² / Wattpilot Go 22 J min. 6 mm²
/ CEE socket: CEE red 16 A, 3-phase, 400 V (Wattpilot Go 11 J) / CEE red 32 A, 3-phase, 400 V
(Wattpilot Go 22 J)
/ Fuse protection: A separate RCCB (Type A) must be installed upstream for each Wattpilot.
Further information
can be found in the
Operating Instructions
The inverter communicates with the Wattpilot via the customer’s existing WLAN. No further
cabling is required for data communication.
When using multiple Wattpilots in a system, only one device can be used for dynamic PV surplus
charging at any time.
It is not recommended to use the energy management function with the digital I/Os on the inverter
for load management in combination with the Wattpilot.
If a battery is present in the system, the flexible electricity tariff should not be activated, as the
battery is first discharged and only then is electricity drawn from the grid.
Use Eco or Next Trip Mode in combination with a battery only with the flexible electricity
INFO
tariff deactivated.
COMMUNICATION
Cable connection (from CAT5) via Modbus RTU (RS485)
BETWEEN INVERTER
AND SMART METER
/ 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 Aug 2021
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