FRONIUS BATTERY SCHEDULING

Lock in a peak export rate and save at other times by charging your battery when wholesale prices are low.

Home /Batteries with Flow Power /Fronius battery export scheduling

Fronius solar battery scheduling & setup

This guide explains how to configure your Fronius inverter with a compatible battery system to discharge between 5:30pm and 7:30pm using Time of Use (TOU) mode in the Fronius Solar.web platform.

This setup is required if you’re participating in Flow Power’s Happy Hour program.

How to setup your battery

Step 1 –
Confirm your inverter & app access

This guide applies to:

Fronius GEN24 Plus
Fronius Symo GEN24 Plus
Fronius Primo GEN24 Plus
Paired with compatible batteries (commonly BYD Battery‑Box Premium)
Using Fronius Solar.web (mobile or web portal)

Ensure:

Your inverter is online
You have owner or installer login access
Your battery shows available capacity
Energy management features are accessible in settings

Step 2 –

Set work mode to TOU (Time of Use)

Open Fronius Solar.web
Select your GEN24 inverter system
Go to Settings
Navigate to Energy Management → Battery Management
Locate the Time-of-Use / Time-controlled battery management settings.

Why TOU?

Time-controlled battery management allows you to schedule when your battery discharges.
If the inverter is left in standard self-consumption mode, the battery will prioritise powering your home and may not export energy during the Happy Hour window.

Step 3 –

Create the 5:30pm–7:30pm discharge window

In the battery schedule settings, add a new discharge period:

Add a new time period:

Start: 17:30
End: 19:30

Set this period as Forced Discharge / Scheduled Discharge.

Save settings.

This instructs the battery to discharge during the Happy Hour window.

Step 4 –

Set Minimum State of Charge (Min SOC)

To ensure energy is available for export:

Navigate to Battery Settings
Locate Minimum State of Charge (Min SOC)
Set to 10–20% (typical recommendation)

If Min SOC is set too high (e.g. 40–50%), your battery may stop discharging early and miss part of the 5:30–7:30pm window.

Step 5-

Confirm export settings

Even if your battery discharges, export may be blocked if:

Export Control is disabled
Export limit is set to 0 kW
DNSP export cap is lower than inverter output
Installer has locked export permissions

Check:

Go to Inverter Settings → Grid Export Control

Confirm:

Export limitation is enabled and correctly configured
Export limit matches your DNSP approval

Commonly:

5 kW export limit for single-phase systems
Higher limits may apply for three-phase systems

If these settings are locked, contact your installer.

Step 6-
Verify during Happy Hour

Between 5:30pm–7:30pm:

Check the Fronius Solar.web dashboard and look for:

Battery discharging
Energy flowing to the grid
Export power greater than 0 kW

If the battery is discharging but export remains 0 kW:

Your home load is using all battery energy
Or grid export is restricted by system settings

Do I control my own exports?

Yes. You keep full control of your solar and battery system at all times.

Flow Home doesn’t remotely control your inverter or battery. Instead, we give you price signals and a clear Happy Hour window, and you decide how to respond.

If you have a battery or smart inverter, you (or your installer) can set it up so you charge when energy is cheaper and export more during Happy Hour, but all those settings remain in your hands.

Don’t have a battery?

Compare quotes from your local pre-vetted installers with Solar Choice.

Learn more

Got more questions? we’re here to help

For technical support in Australia, contact:
Fronius Australia
Phone: 03 8340 2900
Website support: https://www.fronius.com/en-au
Australian office: 90-92 Lambeck Drive, Tullamarine VIC 3043

If export settings are locked, you may need to contact your installer directly.