Fronius Energy Package - Manual (Page 63)

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(4) battery charge from producers in the home network:
If further decentralised producers are installed in the household and have been in-
tegrated into the self-consumption rule for the Fronius Symo Hybrid, you must ac-
tivate this setting. This means that energy can be drawn from the home network
and fed into the Fronius Solar Battery via the Fronius Symo Hybrid for the purpose
of charging it.
You can restrict how much power is consumed by the Fronius Symo Hybrid by
specifying a maximum AC power value (AC max.). The maximum power consump-
tion is limited to the AC nominal output of the Fronius Symo Hybrid.
(5) Meter:
To ensure smooth operation in conjunction with other energy producers, it is impor-
tant to install the Fronius Smart Meter at the feed-in point. The Fronius Symo Hy-
brid and other producers must be connected to the public grid via the Fronius
Smart Meter.
This setting also affects how the Fronius Symo Hybrid behaves overnight. If the
function is deactivated, the inverter switches to Standby mode as soon as there is
no more PV power available, provided that no energy management command is
sent to the battery (e.g. minimum state of charge reached). The message “Power
low” is displayed. The inverter restarts as soon as an energy management com-
mand is sent or there is sufficient PV power available.
If the function is activated, the inverter remains permanently connected to the grid
so that energy can be drawn from other producers at any time.
Once you have worked your way through the Solar Web wizard, an automatic process is
triggered to calibrate all the components. This involves charging the Fronius Solar Battery
fully. After that, the system automatically starts in the set operating mode.
This calibration charging process is also performed automatically during actual operation
after a number of charging and discharging cycles.
If the “battery charging from UC grid” setting is deactivated, this calibration charging pro-
cess relies exclusively on energy from the photovoltaic system. Depending on the insola-
tion conditions and size of the systems concerned, the charging process can take a very
long time.
If the “battery charging from UC grid” setting is activated, the calibration charging process
is performed by drawing a constant current from the photovoltaic system and utility com-
pany grid.
Important! The automatic process for fully charging the battery may result in energy being
drawn from the utility company grid. The process can take several hours and cannot be
aborted.