How Much Would 12 Solar Panels Cost?

Ask each installer for a clear breakdown. You want to know the panel model, panel wattage, total system capacity, inverter, expected generation and what labour or equipment is included.

If one quote includes scaffolding and another does not, the two prices are not directly comparable.

The same applies to batteries. One company may quote for solar only, while another may include storage in the headline figure.

Energy Saving Trust recommends getting three quotes from MCS-certified installers and advises homeowners to look beyond price when choosing an installer.

What Should You Check Before Accepting A Quote?

Start with the equipment.

Find out which panels and inverter the installer plans to use and check the warranties offered for each. You should also know the expected annual generation rather than just the system's maximum capacity.

Next, look at the roof plan. Make sure the proposed layout matches your property and that the installer has considered shading.

Then check the paperwork and installation arrangements. Ask who will handle the required registration and what documents you will receive when the work is finished.

Most homes do not need planning permission for rooftop solar, although exceptions can apply to listed buildings, conservation areas and other properties with restrictions. Check the position for your home before work begins.

Your installer should also register the system with the relevant Distribution Network Operator.

Can You Earn Money From Excess Electricity?