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| System Size | Size of Home | Estimated Cost (Installed) |
| 3kW | Small | £5,000–£6,000 |
| 4kW | Medium | £6,000–£8,500 |
| 5kW | Large | £8,500–£9,500 |
| 6kW | Extra Large | £9,000–£11,500 |
The size of system that you need will be dependent on your energy usage, location and roof size.
For reference, A 3 kW to 4 kW solar panel system is usually sufficient to meet a significant portion of a standard UK household’s electricity needs. This size system can result in substantial energy cost savings over time.
Costs can also vary depending on what your solar panels are made from. Solar panels are typically either thin-film panels, polycrystalline or monocrystalline.
Find the best solar panel deals with our simple comparison tool.
On top of the solar panels themselves, the price of solar panel installation includes a range of other factors which need to be considered.
Here is a rough guide of the costs you can expect for solar panel installation in the UK.
| Product | Average Cost |
| Solar Panels | £2,500–£11,000 |
| Mounting Systems | £600–£2,500 |
| Inverters | £1,000–£3,000 |
| Electrics | £600–£3,000 |
| Energy Storage Systems | £2,000–£10,000 |
| Monitoring Systems* | £500–£1,500 |
| Total Cost | £6,700–£31,000+ |
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