There are three main types of solar electric systems. Those being the following:

SYSTEM 1 - Standalone 240V Alternating Current System

This system includes solar modules, a regulator, Battery bank and an Inverter. These smaller type systems are typically used in Motorhomes, Caravans, Cabins and Marine applications. The number of solar modules and size of battery bank will depend on the power requirements for the system. The solar panels charge the batteries during the day however when no power is being captured from the modules the batteries supply the power requirements. The inverter converts power from the battery voltage, (typically 12 or 24 Volt) to conventional AC power of 240V in Australia. The regulator controls the charge of the batteries, ensuring they are not overcharged. A generator or wind generator can be added to the system if necessary.

SYSTEM 2 - Grid-Connected 240V Alternating Current System

This system is similar to the Standalone 240V system as described above however there is no need for a battery bank in this system, unless backup power is essential. This type of system is usually installed in existing or new homes which are or will be connected to utility grid power. The idea of this is that when the system is generating power that the home user is not using it is directed back into the grid, which in turn gains you credit with the utility power company (Aurora in Tasmania). A battery bank can be added to this system so in the event of power failure from the grid at a time when your solar system is not generating power, household appliances can still be used. Rebates are available from the Australian Government for installations of this nature.

SYSTEM 3 - Standalone Solar Power System

This system is similar to System 1 however on a much larger scale. This type of system is typically installed in remote situations, or where Grid power is too expensive to install, it gives the owner a great deal of self independence. The system will include everything as per system 1, Solar Modules, Regulator, Battery Bank and Inverter. DC Loads for 12V Appliances such as lights etc can be connected while 240V AC Loads are connected through the Inverter.