BrightGridThe cost of installing solar panels in the UK depends on far more than the number of panels. A complete installation can include the solar modules, inverter, mounting system, electrical protection, scaffolding, labour, commissioning, certification and grid connection work where required.
What determines the cost of a solar installation?
- Number and specification of solar panels
- Panel efficiency and physical dimensions
- Inverter type and capacity
- Roof type and accessibility
- Scaffolding requirements
- Electrical installation requirements
- Consumer-unit or distribution-board work
- Battery storage
- EV charging equipment
- DNO requirements
- Roof condition and structural considerations
Solar-only versus solar and battery
| System | Main purpose | Cost considerations |
|---|---|---|
| Solar only | Generate electricity from sunlight | Panels, inverter, mounting and installation |
| Solar + battery | Generate and store electricity | Adds battery, controls and additional electrical equipment |
| Solar + battery + EV | Generate, store and use electricity for transport | Adds EV charger and potentially load management |
Costs that homeowners sometimes overlook
A quote that appears inexpensive may exclude important installation items. Always check whether scaffolding, electrical upgrades, monitoring, certification, commissioning and DNO administration are included.
Compare complete systems, not panel prices
The cheapest solar panels do not necessarily produce the cheapest or best installation. Compare the complete installed system, warranties, expected generation and installation scope.
What should a solar quotation include?
- Panel model and quantity
- Total system capacity in kWp
- Inverter model
- Mounting system
- Estimated annual generation
- Scaffolding and access arrangements
- Electrical installation
- Battery specification if applicable
- Monitoring system
- Warranties
- Certification
- Total installed price
How should you judge whether the price is good?
The right question is not simply whether the quote is cheap. Consider the expected annual generation, equipment quality, warranty protection, installation workmanship, system design and the financial value of the electricity produced.
Get a solar installation designed around your home
Calculate a system based on your roof, electricity consumption, battery requirements and future energy plans.
Check Your SavingsFrequently asked questions
How much does solar panel installation cost in the UK?
The installed price varies according to system size, equipment, roof access, scaffolding, electrical work, battery storage and grid requirements. A complete site-specific quotation is the most reliable way to establish the actual cost.
Does a solar quote include scaffolding?
It depends on the installer. Scaffolding and access arrangements should be clearly listed in the quotation rather than assumed.
Is battery storage included with solar panels?
Not necessarily. Solar-only and solar-plus-battery systems should normally be priced separately so the additional cost and expected benefit can be assessed.
Should I choose the cheapest solar quote?
Not automatically. Compare equipment, generation estimates, warranties, installation scope, certification and the installer's experience alongside price.
Marcus Webb
Head of Engineering at BrightGrid Energy
