How do solar panels work?

A solar photovoltaic (PV) system converts sunlight into electricity. Sunlight is captured by the solar panels and converted into usable electricity by the inverter. This can then be used to power appliances in your home directly, or stored in a battery for use later when the sun is not shining. If not used or stored, the excess electricity is exported back to the grid.

Systems installed before March 2019 were eligible for the Government Feed in Tariff which paid for electricity generated and exported to the grid. The scheme is now closed but if you already have a Feed in Tariff, from EDF Energy or another supplier this will continue.  Details of the EDF Energy scheme are here 

The Solar Export Guarantee will replace the Feed in Tariff. It will pay for electricity exported to the grid and will start in January 2020. Announcements will be made here 

Is my home suitable for solar PV?

Yes! If:
· You have a south facing or south-east to south-west facing roof
· Your roof has sufficient space (at least 9.6m²)

You can find your local, approved installer from the Microgeneration Certification Scheme website 

EDF Energy offers solar batteries which can be added to new solar PV system or retrofitted to an existing one. Find out more here 

Advantages of solar PV

Carbon reduction

With a solar PV system you can become less reliant on non-renewable energy sources and lower your impact on the environment by generating your own, clean electricity. According to Government figures, each kWh of solar electricity represents a saving of 0.43kg of carbon dioxide. That means a typical 2kWp sized solar PV system could save nearly a tonne of carbon dioxide per year.(1)


Energy savings 

When there is enough daylight, you can use clean electricity generated by your own home system. Because you’re not drawing your supply from the National Grid, this means you could reduce your electricity bills significantly.


Battery storage

You can enhance the capability of your home generating system by installing a battery storage solution that helps you to use the electricity generated by your solar PV system even when the sun goes down. Check out the solar battery offer from EDF Energy here




A solar PV system can generate income as well as power. Systems installed before March 2019 are eligible for payments under the Feed in Tariff scheme. Those installed after this date will be eligible under the Solar Export Guarantee from January 2020.

Maintenance of your solar PV system

Solar PV panels should last at least 25 years, with an occasional clean.

The inverter will last approximately 10 years. If your inverter is due for replacement you may wish to upgrade to a solar battery that includes an inverter such as those offered by EDF Energy