Photovoltaic (PV) modules convert sunlight into direct current (DC) power.
The inverter(s) convert DC electricity from the solar array to the AC electricity found in the building.
The inverter feeds electricity into the electrical distribution system.
The bidirectional meter which is supplied free of charge by the utility, keeps track of both the energy imported from the grid and the energy exported to the grid. Savings and export credits are reflected on your electricity bill.