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Anti-Islanding is the ability to quickly stop sending power into the grid from your solar system.

Here’s Why Anti-Islanding is important:

Electric utility companies refer to residential grid-tie solar power arrays as distributed generation (DG) generators. They use this term because your solar panels are producing and distributing electrical power back into our utility grid.

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Islanding refers to the condition of a DG generator that continues to feed the circuit with power, even after power from the electric utility grid has been cut off. Islanding can pose a dangerous threat to utility workers, who may not realize that a circuit is still “live” while attempting to work on the line. Distributed generators must detect islanding and immediately stop feeding the utility lines with power. This is known as anti-islanding. A grid-tied solar power system is required by law to have a gridtie inverter with an anti-islanding function, which senses when a power outage occurs and shuts itself off.

One common misconception is that a grid tied system will continue to generate power during a blackout. Unless there is a battery back-up system, the gridtie solar system will not produce power when the grid is down.

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