Solar panel installation costs in the UK have become more affordable over the past few years, making renewable energy one of the smartest long‑term investments for homeowners. With rising electricity prices and improved solar technology, more households are switching to solar to reduce bills, increase energy independence and boost property value.
Average Cost of Solar Panel Installation
The cost of installing a solar PV system in the UK typically ranges between:
- £4,500 – £6,500 for a 2–3 kW system (small home)
- £6,500 – £8,500 for a 4 kW system (most common)
- £8,500 – £12,000 for a 5–6 kW system (larger homes)
These prices include panels, inverter, mounting equipment, installation and certification. Costs vary depending on roof type, shading, panel brand and inverter technology.
Factors That Affect Solar Installation Cost
- System size: Larger systems cost more but generate more energy.
- Panel type: Premium N‑type or bifacial panels increase efficiency.
- Inverter choice: Hybrid inverters cost more but support batteries.
- Roof structure: Complex roofs may require additional mounting.
- Shading: Homes with shading may need optimisers or microinverters.
How Much Can You Save?
A typical UK home can save between £600 – £1,200 per year depending on system size, energy usage and export tariffs. Homes with battery storage can save even more by storing excess energy for evening use.
Is Solar Worth It in the UK?
Yes — even with cloudy weather, the UK receives enough daylight to make solar highly effective. Modern panels generate power even in low‑light conditions, and rising electricity prices make solar one of the most reliable long‑term investments for homeowners.
For the most accurate price, it’s best to request a personalised quote based on your roof, energy usage and future plans.