If there is no meter in the system or if a meter has failed, the inverter limits the
feed-in power to the set value.
Example: Feed-in limitation
(without consideration of the efficiency)
PV system on Fronius inverter: 5,000 W
Consumption in home: 1,000 W
Maximum permitted feed-in power of the entire system: 60 % = 3,000 W
Case 1: The battery can be charged
Power at grid feed-in point: 0 W
Power at inverter output: 1,000 W
Power into the battery: 3,000 W
Case 2: The battery cannot be charged
Power at grid feed-in point 3,000 W
Power at inverter output: 4,000 W
Power into the battery: 0 W
In this example, no more than 3,000 W may be fed into the grid at the grid
feed-in point. However, any loads that are located between the inverter and the
grid feed-in point can be supplied by additional power from the inverter. These
loads are also compensated as required.
Dynamic power
regulation with
several inverters
Example 1: Fronius SnapINverter ≤ Fronius Primo GEN24
Only one primary meter is required for the Fronius Primo GEN24 inverter.
The power values shown are an example. Inverter configurations with power val-
ues other than those shown in the example are possible, taking into account the
criteria for this example.
IMPORTANT!
Zero feed-in is not possible when using 2 inverters.
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