Fronius Symo
Hybrid and bat-
tery switch-on
conditions
Energy saving mode is ended if one of the following conditions is met for at least 30
seconds:
- Energy saving mode is no longer permissible due to changed settings on the
inverter website.
- More than 50 W is available to charge the battery. The being fed into the public grid
is at least 50 W higher than the power currently required in the household network.
- If the dynamic power reduction is set to 0 or if the system is operating in emergency
power mode, the power being fed into the public grid is always lower than the power
required in the household network.
In this case there is a separate condition (dynamic power reduction < 300 W or
emergency power mode active). If the PV power is above a set threshold (50 W),
energy saving mode is ended.
- Battery charging from the public grid is requested via the website.
- The battery is recharged to restore the minimum state of charge or perform a calib-
ration.
- The Fronius Solar Battery is activated as soon as the Symo Hybrid generates PV
power. This guarantees reliable operation of the battery.
Special case If the inverter does not operate for 8–12 minutes (e.g.: error), or if there is an interruption
in the electrical connection between the inverter and battery, the battery switches into
energy saving mode in any case. This reduces self discharge of the battery.
Indicators on the
devices and user
interfaces
During energy saving mode:
- Orange status LED lights up steady
- The inverter website can be accessed
- All available data is saved and sent to Solar.web
- The current available data can be viewed on Solar.web
Energy saving mode is shown on the website of the inverter and in Solar.web by an "i"
beside the battery symbol in the system overview.
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