Components

A complete solar system starts with the solar panels themselves, but also includes equipment needed to convert power to mains 240V AC, and to measure how much electricity you have generated. The main components are listed below. All of them are included in your fixed price estimate.

Solar panels

Photovoltaic (PV) solar panels convert daylight to electricity. A number of panels work together – the complete bank of panels is often called the solar array.

Inverter

The inverter converts the Direct Current (DC) electricity produced by the solar panels to AC mains electricity. It is also a failsafe link between the solar panels and the mains network – if there is a problem with either, the inverter makes the system safe.

DC Isolator

This provides a safe means of disconnecting your solar array from the inverter, e.g. for periodic maintenance. Some inverters have integrated DC isolators.

Generation meter

Your generation meter counts the number of units of electricity created by your panels and inverter. It makes sure you can receive your FIT payments.

AC Isolator

The main isolator lets you disconnect your solar system from the building electricity supply. This may be important in an emergency, or when electricians work on the building supply.

Consumer Unit (Fuseboard)

The main point of connection of the PV system into the building supply.

Existing Supply meter

Solar electricity is not able to meet all of your needs (e.g. at night) so your standard meter will continue to show power that you draw from the grid. If you have an import/export meter, it will also show what you export back to the grid.

The Grid

The mains electricity network which supplies power to you – of course it may now also supply excess production from you to other consumers.