What is a Solar Panel?
A device that converts sunlight into electricity using photovoltaic cells
A solar panel (photovoltaic panel) is made of silicon cells that generate direct current (DC) electricity when photons from sunlight knock electrons loose. An inverter converts this DC electricity into alternating current (AC) for use in your home. Excess electricity can be exported to the grid and paid for through the Smart Export Guarantee (SEG).
Where it wins
- Reduces electricity bills by up to 70%
- Earn money through the Smart Export Guarantee (SEG)
- Low maintenance with 25+ year lifespan
- 0% VAT on residential installations
Where it struggles
- Output depends on sunlight and roof orientation
- Upfront cost of £5000-£10000
- Does not generate electricity at night
- May require roof reinforcement on older properties
How it works
01
Sunlight hits silicon photovoltaic cells in the panel
02
Photons knock electrons loose creating direct current (DC) electricity
03
An inverter converts DC to AC electricity your home can use
04
Excess power is exported to the grid, earning Smart Export Guarantee (SEG) payments
Solar Panel: common questions
What is a Solar Panel?
How does a Solar Panel work?
See what solar panels cost in your town
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