Small Solar Electric Balance-of-System Components

In addition to the solar cells and modules, a small solar electric (or photovoltaic) system consists of other parts called balance-of-system components.

The balance-of-system equipment required depends which of the following systems is being used:

• Grid-connected
• Stand-alone
• Hybrid.

A typical small solar electric system usually includes the following balance-of-system components:

• Mounting racks and hardware for the panels
• Wiring for electrical connections
• Power conditioning equipment, such as an inverter
• Batteries for electricity storage (optional).
• Stand-by gasoline electric generator.