Is my home suitable for Solar PV?

Is my home suitable for Solar PV?

Helpful advice on which homes are suitable for solar panel and solar PV installation

Solar Photovoltaic

Most homes in the UK are suitable for a Solar PV system but the amount of electricity generated by a Solar PV system can also vary depending on where you. There are a few things you need to think about and consider when researching solar energy for your home. 

Quick guide to a perfect roof

Each installation will generate differing amounts of kWh over a year. You can see the best roof example from the table below.

guide to a perfect solar pv roof

Seasonal performance – energy generation by month

The chart below shows a typical seasonal spread of energy generation for an average system of 2.2kWp facing south. The winter months generate significantly less electricity compared to the summer months.

solar pv seasonal performance

Solar PV Orientation and tilt

Your roof should ideally face due south at a pitched angle of between 30° and 50° from the horizontal to give the best overall annual performance. Installations facing anywhere to the south of due east and due west are feasible, although output will be reduced. Installation is not recommended on roofs facing north.

Shape of roof area

Solar PV arrays are made up of modules of about 1.6m2 which allows most available roof shapes to be accommodated. Typical UK installations are around 10m2 to 20m2. For example a 3kWp system could comprise 12 panels taking up an area of 20m2 and will generate roughly 2400kWh per annum.


Any shading has a detrimental effect on the electricity your system generates. Shading may come from trees, chimneys or surrounding buildings. Shading is a very important factor in the solar PV output. However, if your panels are partially shaded in the early morning or late evening, the system will still generate acceptable yields.

Installers assess and highlight any shading concerns and give a realistic electricity generation potential. Solar panels only need light to work and will still function on cloudy days but you will generate approximately 15%of the energy on a cloudy day as on a sunny day at the same time of year.

Thinking of installing Solar PV for your home?

Before committing to installing a PV system, you need peace of mind that your solar PV System will generate the electricity and income that your installer predicts. Rexel Solar Energeasy service offering has been designed to give you all the answers to your photovoltaic installation project. Using Solar Energeasy, you can simulate the generation potential of their future installation online, translate it into revenue, calculate their CO2 emissions savings and find out the equivalent in the number of trees planted. You can also use the website to find a trustworthy installer close to home and request a quote online more easily than ever before.