In a typical solar installation we have a mains grid supply and a Solar Panel / inverter mains supply joined together. This combined mains supply supplies the house. If an excess of power is generated by the solar panel after supplying the house it is exported to the grid.
How does the house "know" to take it's supply from the inverter first and not the grid?
But what makes the power flow from the GTI inverter onto the grid, does the inverter lead the voltage or current sinewave or the voltage from the inverter is slightly (marginally) higher?
But what makes the power flow from the GTI inverter onto the grid, does the inverter lead the voltage or current sinewave or the voltage from the inverter is slightly (marginally) higher?
The output voltage needs to be higher than the mains for any current to flow. This also creates a problem in suburbs that have a lot of GTI solar systems, It can cause higher mains voltage.