Fronius Correctly setting the time-of-use storage system controller parameters Whitepaper [EN]
CORRECTLY SETTING THE TIME-OF-USE
STORAGE SYSTEM CONTROLLER
PARAMETERS
Configuration instructions
© Fronius International GmbH
Version 1.0.1, 04/2019
Business Unit Solar Energy
Fronius reserves all rights, in particular rights of reproduction, distribution and translation. No part of this document may be reproduced,
in any form whatsoever, or stored, processed, duplicated or disseminated with the aid of electronic systems, without the written consent
of Fronius. You are hereby reminded that the information published in this document, despite the greatest care being exercised in its
preparation, is subject to change and that neither the author nor Fronius can accept any legal liability. Gender-specific wording refers
equally to the male and female form
.
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CONTENTS
INTRODUCTION .............................................................................................................................. 4
1
2 WEB INTERFACE FOR SETTINGS ................................................................................................ 5
2.1 Connecting to the inverter ................................................................................................................. 5
2.2 Settings on the Datamanager/Hybridmanager web interface ........................................................... 5
3 PARAMETERS FOR THE BATTERY STORAGE SYSTEM ........................................................... 7
3.1 Default settings – storage system power limitations without parameters ......................................... 7
3.2 PV power reduction .......................................................................................................................... 7
3.3 Possible manual parameters for the battery storage system ........................................................... 8
3.3.1 Maximum charging and discharging limits ........................................................................................ 9
3.3.2 Specifying the charging range .......................................................................................................... 9
3.3.3 Specifying the discharging range .................................................................................................... 10
3.3.4 Specifying a defined charging power .............................................................................................. 11
3.3.5 Specifying a defined discharging power ......................................................................................... 11
4 APPLICATION EXAMPLES ........................................................................................................... 13
4.1 Time-dependent electricity tariffs .................................................................................................... 13
4.2 Fully charging the storage system before the peak phase ............................................................. 13
4.3 ToU and grid power feed restrictions .............................................................................................. 14
4.4 Charging the storage system from the grid overnight ..................................................................... 15
4.5 Disabling the storage system at night ............................................................................................. 16
4.6 Limiting discharge in the evening/at night ...................................................................................... 17
4.7 Time-dependent feed-in tariffs ........................................................................................................ 18
4.8 Time-dependent capacity reservation for emergency power ......................................................... 19
5 SUMMARY ..................................................................................................................................... 19
6 LIST OF FIGURES ......................................................................................................................... 20
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1 INTRODUCTION
The ‘default’ settings of a battery storage system with the Fronius Symo Hybrid inverter are configured to
achieve the highest possible self-consumption. The aim is to ensure that as much of the energy generated
by the PV generator is used by consumers in the household itself.
If additional framework conditions such as time-dependent electricity tariffs (time-of-use), variable reserves of
emergency power, or power limits are to be taken into account, it may make sense to apply additional battery
storage system settings.
Users have to decide the relative importance of this behaviour, costs, and convenience for them depending
on the application. If storage system parameters are defined, there may be less energy available for direct
consumption.
This document explains which settings can be applied and how to do so.
The “TIME-OF-USE SETTINGS WITH FRONIUS SYMO HYBRID” document, which can be downloaded from
www.fronius.com, explains the purpose and benefits of time-of-use settings.
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2 WEB INTERFACE FOR SETTINGS
2.1 Connecting to the inverter
The relevant software settings are made in the inverter’s web interface (also called the Datamanager
interface) using a web browser on a PC, smartphone or tablet.
Do this by completing the following steps:
1. Select the menu item "SETUP" on the inverter display
2. Select the menu item "Wi-Fi Access Point"
Figure 1: - Activating the access point on the inverter display
3. Connect the end device to the Wi-Fi access point
a. On the end device, search for a network with the name "FRONIUS_xxx.xxxxx"
b. Establish a connection to this network
c. Enter the password: 12345678
d. Enter http://datamanager or 192.168.250.181 (IP address of the WLAN connection) into the end
device's browser. For a LAN connection (wired), enter 169.254.0.180.
For further information relating to establishing a connection, see the Operating Instructions for the Fronius
inverter or Datamanager 2.0.
2.2 Settings on the Datamanager/Hybridmanager web interface
When starting the device for the first time, the installation wizard will guide you through the process.
Figure 2: Starting the technician wizard
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If the device has already been commissioned, you will be taken directly to the Datamanager/Hybridmanager
web interface.
The appropriate settings can be made on the Datamanager/Hybridmanager web interface under ‘Settings’ ->
‘Energy management’ in the ‘Battery management’ section.
Figure 3: Time-of-use settings on the Datamanager/Hybridmanager interface
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