PV system types

Grid-tied PV systems

PV systems installed that have a grid connection are called grid-tied systems. The inverters that come with these types of systems are called interative as they are capable of interacting with the grid by matching its voltage and frequency. As a system of this type produces energy, it must either be consumed on the presmises or it will be fed back into the grid - through a meter - to be used by other customers. These systems cannot store energy and do not provide backup power in the case of a power outage. The majority of PV systems installed globally are of this type.

Grid-tied system with an inveractive inverter. Components in this image: 1. Solar module/array 2. Grid-tied interactive inverter 3. Distribution panel to feed loads 4. Grid connection