The DC power from PV panel goes to a grid interactive (grid-tied) inverter which converts the PV panel DC power to 220 volt AC power that is compatible with the power grid. AC power from inverter is supplied to the household power needs. If the PV system is generating more power than the house can use, the excess is sent out over the grid to supply others. (Net Metering System) If the house needs more power than the PV system can supply, then the extra is drawn from the grid as usual. Grid tied systems only work when the grid is up. If the grid power goes out, the grid tie inverter is required to shut down immediately.
PV Grid Connected Inverters operate at a lower, safer voltage from the PV array, while having the advantages of reliability, flexibility and improved energy yield. Using lower voltages on the PV side means there are lower voltages in your roof eliminating high voltage hazards and giving peace of mind to installers and service personnel. By using short multiple strings of panels, PV Grid Connected Inverters make sure that there are more paths for electricity to flow. which ensures minimal power loss due to varying environmental or panel conditions.
Installing the Grid Tie Solar Inverter Consists of mounting it to the wall and connecting the DC input to a PV array and the AC output to the utility.
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