How Solar PV Works
Photovoltaic Cells Absorb Light
Solar cells made of silicon absorb photons from sunlight, exciting electrons to create an electrical current.
DC to AC Conversion
An inverter converts the direct current (DC) produced by panels into alternating current (AC) used in your home.
Power Your Home
Solar electricity powers your appliances first, reducing the amount you buy from the grid.
Export or Store Surplus
Excess electricity is exported to the grid (earning SEG payments) or stored in a battery for later use.
Frequently Asked Questions
What is solar photovoltaic (PV)?
Solar photovoltaic (PV) is a technology that converts sunlight directly into electricity using semiconductor cells. PV panels are installed on rooftops and generate clean, renewable electricity for homes and businesses.
How efficient are solar PV panels?
Modern residential solar PV panels are 20–22% efficient, meaning they convert 20–22% of sunlight into electricity. Premium panels can reach 24%. This is sufficient to power most UK homes with 10–14 panels.
How long do solar PV panels last?
Solar PV panels typically last 25–30 years with minimal degradation (around 0.5% per year). Most manufacturers offer 25-year performance warranties guaranteeing at least 80% of original output.
Related Guides & Resources
Solar Panel Installation
MCS certified solar panel systems with 25-year warranties.
Battery Storage
Store solar energy for evening use and maximise savings.
Solar Panel Costs 2026
Up-to-date UK pricing for residential solar systems.
Solar Savings Guide
How much can you save with solar panels?
Government Grants
Check your eligibility for solar grants and funding.
0% Finance Options
Spread the cost with affordable monthly payments.
Instant Solar Estimate
Get a quick price estimate for your home.
Get a Free Quote
Book a free, no-obligation survey and quote.
