What does a typical solar panel system cost in Scotland?
For a typical Scottish house, a 3 to 4 kWp solar panel system usually costs somewhere in the region of £5,000 to £8,000 fully installed (typical, subject to survey). The final figure depends on roof access, the number of panels, the inverter chosen and how much scaffolding is needed.
A complete quote should include the panels, roof mounting kit, inverter, cabling, scaffolding, electrical connection to your fuse board, notifying the network operator, certification and a handover. If any of these are missing, ask why before you compare it with another price.
What makes a solar quote higher or lower?
The biggest factors are the size of the system, how easy your roof is to reach, the equipment chosen and any extra electrical work. Two homes on the same street can receive quite different quotes because of roof shape, shading or the age of the fuse board.
- Roof type: Scottish slate needs careful fixing, while concrete tiles are usually quicker to work with.
- Access: tall tenements, steep gardens and narrow lanes can need more scaffolding.
- Shading: panel optimisers may be recommended if chimneys or trees shade part of the roof.
- Electrics: an older fuse board may need upgrading before connection.
- Location: remote and island homes can involve extra travel and delivery logistics.
How much does adding a battery cost?
Adding a home battery typically adds around £3,000 to £6,000, depending on its storage capacity and whether it is fitted at the same time as the panels (typical, subject to survey). Fitting both together is usually cheaper than adding a battery later, because the electrical work can be shared.
A battery is not essential, but it lets you use more of your own solar electricity in the evening. Our battery storage guide explains when it is worth it.
Is VAT charged on solar panels and batteries?
Solar panels and batteries installed in homes currently qualify for 0% VAT in the UK, and this zero rate is scheduled to run until 31 March 2027. It is applied directly to your quote, so there is nothing for you to claim back yourself.
Check that your quote shows how VAT has been treated. If your installation date is likely to fall close to the end of March 2027, mention it at survey so the timing can be planned.
Are there grants or finance options for solar in Scotland?
Scottish Government-backed grants and loans may be available, subject to eligibility; we'll check what applies to you. If you would rather spread the cost yourself, loans are available, subject to status. We always show the full cash price too, so you can compare options clearly.
Once your system is registered, you can also earn money for surplus electricity you export through a Smart Export Guarantee tariff. Rates vary between suppliers and change over time, so compare offers rather than relying on a single figure.
How do I compare solar quotes fairly?
Compare the system size in kWp rather than the number of panels, check how the generation estimate was worked out, and make sure each quote covers the same items. The cheapest quote is not always the best value if it leaves out scaffolding, warranties or paperwork.
- Is the generation estimate based on your actual roof direction, tilt and shading?
- What warranties come with the panels, inverter and workmanship?
- Are scaffolding, bird protection and a monitoring app included?
- Will the installer handle network notification and issue an MCS certificate?