Solar Panel Costs in the UK
The average cost of solar panels in the UK has dropped significantly over the past decade. Here's what you can expect to pay in 2025:
Typical System Costs
- 3kW System: £5,000 - £6,500
- 4kW System: £6,500 - £8,000
- 5kW System: £7,500 - £9,500
- 6kW System: £8,500 - £11,000
What's Included
These prices typically include:
- Solar panels and mounting equipment
- Inverter
- Full installation by MCS-certified installers
- Grid connection
- Monitoring system
Battery Storage
Adding battery storage costs an additional £2,500 - £8,000 depending on capacity. Popular options include Tesla Powerwall and GivEnergy batteries.
→ Still unsure if the maths add up? Check your personal payback period — it takes 60 seconds.
Financial Benefits
Smart Export Guarantee
You can earn 4-15p per kWh for electricity exported to the grid, depending on your energy supplier.
Savings on Bills
A typical 4kW system saves £400-600 per year on electricity bills, with payback periods of 7-10 years.