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GENERAL DESCRIPTION OF PV / SOLAR SYSTEM
Grid-tied PV / Solar System
Fig. 2.2 shows a Block Diagram of a typical Grid-tied PV / Solar System. In this system,
the Solar Panels (Modules) / Arrays directly feed to an inverter and the inverter is
connected to an Electricity Transmission and Distribution System (referred to as the
Electricity Grid) such that the system can draw on the Grid’s reserve capacity in times
of need, and feed electricity back into the Grid during times of excess production.
PV/Solar Panel (Module) or Array
Charge Controller
Battery
DC-AC Power Inverter
To AC
Loads
Solar Array
Charge
Controller/Protection
DC-AC Power Inverter
To AC
Loads
Power to
and from grid
Two-way Metering
Fig. 2.2. Grid-tied PV / Solar System – Block Diagram
In order to safely transmit electricity to your loads and to comply with your power
provider’s grid-connection requirements, you may need the following additional
items:
• Power conditioning equipment.
• Safety equipment.
• Meters and instrumentation.
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