According to the latest UK government data[1], the cost of solar panels in the UK is at its lowest level in almost 2 years. In fact, between March 2023 and 2024, the median cost per kilowatt (kW) for a 0 to 4kW solar panel system has dropped more than 20 per cent. Contact online >>
According to the latest UK government data[1], the cost of solar panels in the UK is at its lowest level in almost 2 years. In fact, between March 2023 and 2024, the median cost per kilowatt (kW) for a 0 to 4kW solar panel system has dropped more than 20 per cent.
Solar panels usually make up about a third of the total cost of the project. So if you live in a 3-bedroom house, and pay £7,100 for your system and installation, you can expect the cost of your solar panels specifically to be around £2,400. However, the actual price depends on the efficiency, power and brand of your solar panels.
Installation, labour and mounting costs (meaning the mounting system needed for the panels and the scaffolding that will surround the site) can vary widely, but as a guideline, they account for around 10–20 per cent of the overall system cost. For example, if you pay £7,100 to install a 4.5kWh system, your solar panel installation costs could range between £710 and £1,420.
Where you live in the UK will also impact the cost of your solar panel installation. For instance, you can expect to pay higher installation costs in London than in other areas of the country. However, you should still shop around and get as many quotes as you can to find the best deal.
While it is possible to DIY your own solar panel system, we don''t recommend it. Opting to work with experienced labourers and installers ensures the system is set up correctly and mitigates risks to security and safety. Other disadvantages of self-installation include not benefitting from a manufacturer''s warranty and the fact that only MCS-certified solar panel installations can sell surplus energy back to the national grid.
Solar batteries are an optional part of a solar system, but they can help you save even more money. If you opt for solar batteries, this will make up about 22 per cent of the system''s expense. A battery suitable for a 3-bedroom home will typically cost around £2,500. It is normally cheaper to install a battery at the same time as your solar panel system, instead of on its own after the fact. And any increase to solar panel installation costs should be marginal.
Most solar panel manufacturers offer a performance guarantee that the panels will produce at least 80–90 per cent of their rated power after 25 years. Workmanship warranties, provided by many installers, typically last 10 years and cover any defects or problems with the installation.
Source: Federation of Master Builders. Based on average figures across the UK (SEG isn''t available in Northern Ireland, and hasn''t been applied to calculations for that country), with someone at home for half the day. Ofgem unit rate data for October to December 2024.
The time it takes for the savings from your solar panel system to equal the initial investment is known as the payback period, or break-even point. This period can vary greatly depending on factors such as current electricity prices in your area, your household''s energy consumption and your system''s initial cost.
This means that, due to the energy price cap increase for October to December 2024, you can now pay back your solar panels 1.2 years quicker than you would''ve using electricity prices for July to September.
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