When our grid voltage rises unnecessary then most likely our solar system shows error, reduces output and also start getting shut down.
Consequently, house owner lose money, our system generates less power and subsequently more fossil fuel is burned, more pollution and environmental issues.
What Is Grid Over Voltage?
Grid over voltage occurs when the voltage in the power lines your home or business is connected to exceeds the Australian standard, which is 230 volts plus 10% or minus 6% which gives the range of 216 to 253 volts.


Grid Over Voltage Shuts Down Solar


Electricity flows from higher voltage to lower voltage. This means if the grid voltage is higher than the voltage produced by rooftop solar, then that time solar system will not export any energy. If your inverter is at 256volts during the day, then it will be limited to 68% of its total capacity.
For example- if your solar is producing lots of power constantly for 10 minutes, then the grid will go over 255volts, causing an overvoltage reaction.
Now days the Newer inverters in market actually ramp down the power going to the grid before they reach the 258volt limit.

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