Solar PV

Solar Panels

Save money and protect the environment with Solar PV
Photovoltaics (also known as Solar PVs) capture the sun’s energy and convert it into electricity that you can use in your home.
By installing a Solar PV system, you can generate your own renewable electricity – enough to charge an electric vehicle, or run your home’s electrical appliances.

Solar PV systems


Solar PVs are made up of ‘cells’, made from layers of semi-conducting material. When sunlight shines on this material, a flow of electricity is created. The cells don’t require direct sunlight to function, and can work even on dull days – though greater sunlight intensity means more electricity.

Solar PV systems consist of several panels – usually around ten – with each panel generating around 300W to 400W of energy in strong sunlight. The system generates DC electricity, converted to mains-equivalent AC via an inverter. This electricity can be used throughout your home, with any surplus exported to the grid, or stored in batteries for later use.


In most places, the installation of Solar PV panels is classed as Permitted Development, and does not require planning permission. There are exceptions, including listed buildings and buildings in conservation areas, so make sure you check with your local council planning office.


Solar PV costs and benefits

Domestic Solar PV systems used to be extremely expensive, but this is changing. According to the Energy Saving Trust, a typical 4.2 kilowatt-peak Solar PV system costs around £6,500, and saves between £210 and £514 per year at current energy prices. The panels can be purchased VAT-free until March 2027, which can save around £1000 on your installation costs.


You can also earn money by selling any unused energy back to the grid. For a typical system, the Energy Saving Trust estimates an income of between £80 and £110 per year, depending on your energy supplier. The payback time for a typical system would be around 11 years if you’re in the middle of the UK – it’s slightly longer in Scotland, and slightly shorter in the south.


Low-income, fuel-poor and vulnerable households may also benefit from the ECO4 and ECO4 LA Flex schemes, which provide grants to cover the costs of replacing inefficient heating systems with more environmentally friendly options. Your energy supplier can help you to apply for these schemes.



Solar PV installation

Excel Electrical provides a comprehensive Solar PV installation service. We ensure that your system is installed with minimal disruption, and that it delivers optimum performance from day one.


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To discuss Solar PVs and how they might benefit your home or business, call us today on 01508 488007 or email

To book a site survey & receive a free quotation