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Volt-Watt Response Mode
The Soluna BESS series complies with AS/NZS 4777.2: 2015 standard. The grid voltage at
which the inverter output starts to drop/de-rate is set to 250 V by default as required by the
standard. This means that when the grid voltage exceeds 250 V, the maximum output of the
inverters will be restricted (as required by the standard). The maximum output decreases by
approximately 5 % for every volt beyond 250 V, down to 20% of the nominal output when
the voltage reaches 265 V. For example, if setting Vstart=250V and Vstop=265V. When the
grid voltage reaches 250V and gradually increases to 265V, the inverter output power will
gradually decrease. When the voltage reaches to 265V, its output power will decrease to
20% of Pstart.
This mode is not enabled by default and will reduce the output power of the inverter in
response to an increasing voltage at the AC terminals of the inverter. The voltage that the
inverter produces a given % of the VA rating of the inverter can be adjusted via the LCD on
the front of the Soluna system.
Adjusting Volt-Watt mode settings
Click
VW icon and set Vstart and Vstop
to comply with the local Grid.
AS4777.2
Voltage reference
Soluna system
Voltage reference
AS4777.2
Power reference
Soluna system
Power reference
AS4777.2
(default value)
V1
-
P/Prate%@V1
-
100%
V2
-
P/Prate%@V2
-
100%
V3
Vstart voltage (V)
P/Prate%@V3
Vstart Power
100%
V4
Vstop voltage (V)
P/Prate%@V4
Vstop Power
20%
Summary of Contents for Soluna S8 EU-A50
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