The grid tie inverters match the phase alongside a utility charged sine wave. These grid tie inverters are also programmed to automatically turn itself off during power losses to ensure safety. Hence, these inverters do not provide emergency power during these times. It is recommended for a home which is powered by a utility grid to use a grid tie inverter in their solar system for them to take advantage of net metering. Grid tie inverters require their system to be installed with anti-islanding protection. Islanding is a process where grid tie inverters are fooled that a utility grid is still functioning even if it has been turned off. It takes place due to load circuits that resonate in the electrical system.